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Why Is My Circuit Breaker Tripping? 4 Potential Problems and Solutions

Learn the proper way to figure out reasons for a circuit breaker tripping in a home—as well as when to let an electrician do the sleuthing..

By Glenda Taylor and Bob Vila and Evelyn Auer | Updated Dec 15, 2023 4:16 AM

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Q: Every few hours—sometimes minutes!—my living room and one side of my kitchen lose electrical power. I’ll check the breaker panel and, sure enough, a circuit breaker has tripped…again. Should I call an electrician, or is there a simple DIY fix I can try first?

A: While it’s frustrating when a circuit breaker keeps tripping, they are important safety mechanisms. Designed to shut off the electrical current when something goes wrong, circuit breakers are one of the best ways of protecting a home from an electrical fire. “When a circuit breaker trips, typically it is because we use too much electricity, which causes it to overload and turn off,” says Christopher Haas, expert electrician and owner of Haas & Sons Electric in Millersville, Maryland. For those who need an electrical panels 101 refresher course or aren’t sure how to reset circuit breakers, each breaker has an on/off switch and controls a separate electrical circuit in the home. When a breaker trips, its switch automatically flips “off,” and it must be manually turned back on to restore electricity to the circuit. For those wondering, “Is it dangerous if a circuit breaker keeps tripping?” the answer is that it can be, depending on the source of the problem. An electrician can ultimately deal with the root issue, but a little sleuthing will reveal whether it’s something that’s easily remedied.

In many cases, the cause of a circuit breaking tripping is an overloaded circuit.

A circuit overloads when more electrical current is being drawn through the wires than they can handle, tripping the circuit breaker. If this happens, there may be a few additional signs:

• Buzzing noises coming from outlets
• Devices charging slowly
• Electrical outlets not working
• Flickering lights
• Scorch marks on outlets and light switches

If a circuit breaker keeps tripping in one room, homeowners can test for circuit overload by turning off all the switches in the affected area and unplugging all appliances and devices. After the breaker is flipped back on, the devices can be turned back on one at a time, with homeowners waiting a few minutes in between to see if the circuit remains on. If the breaker trips before all the appliances are turned on, the experiment can be repeated, this time turning them on in a different order. It may be necessary to do this several times to find out how many appliances can be operated at once before the circuit overloads.

“As a short-term solution, you can unplug unnecessary appliances to prevent tripping circuit breakers. You may still get some trips, but you can limit them by unplugging devices that you don’t need to use,” advises Dan Mock, vice president of operations at Mister Sparky , an electrical company with 90 locations in the U.S. The best long-term solution, however, is to pay an electrician for the cost to rewire the house and add additional circuits. The cost to replace an electrical panel is about $1,274 on average.

Other times, the issue may be caused by a short circuit.

A “short” circuit means that two wires that should not be coming into contact are inadvertently touching, triggering a sudden surge of electricity through the wires. A short can occur in an outlet, a switch, or within an appliance if wires are loose or have been chewed through by mice or pets. Some signs of a short circuit include:

• Popping sounds
• Discolored outlets or switches
• Burning smells

Testing to see if an appliance has a short is similar to testing for an overloaded circuit. When an appliance that has a short in its wiring is turned on, it will immediately trip the circuit. Homeowners can also try plugging it into an outlet in a different room. If the breaker for that room trips, there’s a short in the appliance (if it’s unclear what breaker goes to what room, the breaker can be identified with one of the best circuit breaker finders ). Electrical shorts can be a major fire hazard, so it’s a good idea to call a licensed electrician for this circuit breaker repair. It’s wise to stop using the outlet or appliance until a pro takes care of the problem.

Another potential cause of a circuit breaker tripping is a ground fault.

A ground fault occurs when the electricity running through a home’s wiring diverts from the wiring loop and travels to the ground, usually due to faulty wiring or water infiltration in an outlet or switch box. Water is a conductor, which is why walking through puddles is often listed as something not to do in a power outage in case of downed power lines. Once water makes contact with wires, electricity can jump from the wiring loop and follow the water trail. This creates a surge in electricity leading to a tripped circuit breaker. If a person comes in contact with the electricity that is on its way to the ground, this can result in electrocution. Homeowners may notice a few signs of a ground fault, including:

• Tripped GFCI (ground fault circuit interrupter) outlets;
• A burning smell coming from an outlet; and
• Lights flickering.

Newer electrical breakers have features designed to protect against the danger of ground faults. According to Haas, “Ground fault breakers sense electricity going to earth as opposed to going through the wires of the circuit. You’ll find [these] for bathrooms, kitchens, garages, exteriors, and basements.” GFCI outlets are another safety feature that shut off the electric current within a fraction of a second of sensing a ground fault.

If a ground fault is the problem, the cause of the errant water must be discovered and repaired, and any damaged wiring must also be replaced. It’s also a good idea to install GFCI outlets in rooms where water is commonly used. A GFCI outlet costs $210 on average.

Sometimes a bad or worn-out circuit breaker can be the culprit.

In some cases, the circuit breaker itself may be faulty. Breakers that are old, damaged, or were installed incorrectly may trip frequently for no apparent reason. Alternatively, faulty breakers may not trip when they are supposed to, leaving the home at risk of electrical fire. Some signs of a bad circuit breaker include:

• The circuit breaker getting hot and tripping frequently;
• The circuit breaker won’t reset;
• It has been over 10 years since the breaker was last serviced; and
• The breaker has scorch marks.

An important electrical safety tip to keep in mind is that resetting a breaker over and over again can cause what is called an arc flash, which is a small electrical explosion that can be deadly. If resetting the breaker once does not remedy the issue, it’s a good idea for the homeowner to hire an electrician near them who knows how to replace a circuit breaker safely. Mock warns, “Don’t take any chances with circuit breakers. Instead, call a licensed electrician who knows the safe ways to replace breaker boxes, upgrade circuits, and diagnose potential electrical problems in your home.” Wiring a breaker box is a job to leave to an experienced electrician.

A professional electrician can help determine the specific cause of a frequently tripping circuit breaker.

Most circuit breaker problems—aside from those explained in the sections above—will need to be inspected and addressed by a licensed electrician. According to the Electrical Safety Foundation International (ESFI) , each year “thousands of people in the United States are critically injured and electrocuted as a result of electrical fires, accidents, [or] electrocution in their own homes.” While homeowners may be tempted to save on electrician costs by attempting circuit breaker replacement or repair themselves, electrical work is not suitable for casual DIYers. “Yes, you have to pay, but you can save many hours of head-scratching by hiring an electrician. Electricians will also have all the right tools for diagnosing and repairing the circuit,” Haas adds. “Lastly, they will come with a warranty/guarantee should something arise, and they will typically return at no additional cost.”

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5 Reasons Your Circuit Breaker Keeps Tripping and What You Can Do About It

Keep losing power, and aren't sure why here are five of the most common reasons why a circuit breaker keeps tripping, and what you can do to fix the problem..

1. Ground Fault

2. short circuit, 3. circuit overload, 4. arc fault, 5. damaged breakers, circuit breaker keeps tripping, buell electric's blog.

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Circuit Breaker Tripping: Troubleshooting Guide

Hubert Miles | Licensed Home Inspector, CMI, CPI

Updated on January 5, 2024

A circuit breaker tripping results from short circuits, overloaded circuits, and ground faults. In each case, an unintended excessive flow of current triggers the trip. You must reset the circuit breaker by flipping it back on to restore power.

Circuit breakers trip because they cannot handle the amount of current running through them. Tripping the circuit breaker interrupts the flow of electricity and protects your devices or appliances from damage.

Get FREE estimates from licensed electricians in your area today. Whether you need to replace an outlet, hang a ceiling fan, a new electrical panel, or repair wiring, We Can Help!

Without electrical circuit breakers , the possibility of electrical fires would be much higher.  

This guide looks at what causes circuit breakers to trip, what you can do, and how to identify a bad breaker.

What Would Cause a Circuit Breaker to Trip

There are three leading causes of circuit breaker trips:

• circuit overload
• electrical faults (i.e., ground faults and arc faults)
• short circuits

Below are factors that can cause circuit breaker trips. 

Circuit Overload

A circuit overload happens when the flow of electric current running through the circuit exceeds the amperage of the devices it serves. 

For example, if your microwave is a 12.5 amp appliance, you can run it on a 15 amp circuit. That means your microwave is safe as long as the amperage running through the circuit is 15 amps .

However, if the circuit receives an excessive electrical load over 15 amps , it will automatically trip to protect your device from damage. If the circuit doesn’t trip, the excess current will fry the circuit in your microwave. 

Also, if you operate too many appliances and devices on one circuit, its internal mechanism heats up, causing the breaker to trip. 

Circuit overload is the most common reason for breakers tripping. 

Ground Faults

A ground fault occurs when the active wire comes into contact with a ground wire made of bare copper. Sometimes, this fault may happen when the hot wire touches the metal box connected to the ground wire.

Excessive current flows once the active wire touches the ground wire, flowing into the earth. If you step on the affected area, ground faults can cause shock and even electrocution. The uncontrolled flow of electricity will cause the circuit breaker to trip.

Arc Faults 

An arc fault happens when exposed faulty wiring touches, causing the electric current to arc at the meeting point. As a result, sparks occur, which can ignite an electric fire.

A corroded or loose connection is the main culprit for arc faults. Circuit overloads, ground faults, or short circuits trip an AFCI (Arc Fault Circuit Interrupter) circuit breaker.

Arc faults result from damaged, loose, or corroded terminals and wires. The arc fault builds up over time as the heat due to the cable damage and terminals build up to the point of ignition.

Short Circuits

A short circuit occurs when an active wire touches a neutral wire, and the electrical current takes an unintended path of least resistance. 

The common cause of short circuits is frayed wires coming into contact when the wires touch. The electrical current flow increases significantly, causing the circuit breaker to trip to stop the electricity from damaging appliances.

It is a short circuit because the current bypasses the proper circuit wiring channels and flows through a shorter, unplanned pathway.

Short circuits occur 

• When insulation melts and wires are exposed
• Within appliances with damaged internal wiring
• Due to damaged and frayed extension or appliance cords

How do You Fix a Breaker that Keeps Tripping?

A dedicated circuit breaker tripping indicates too much current flowing through the wiring or connection to the outlet.

Here is a step-by-step guide to follow when you notice the first trip:

• Begin by turning off all the appliances and unplug electrical devices from the outlet. Also, switch off light fixtures and unplug those that you can. This prevents any appliances from damaged when the breaker is reset and a sudden surge of power comes through.
• Open the circuit panel or box and locate the on and off buttons of the circuit breaker. You may notice an orange or red color on the breaker when it is off. 
• Flip the switch from off to on to reset the circuit breaker. Once the breaker is reset, you can switch and test the appliances to see if the electrical power is flowing.
• Keep safe as you reset the breaker by working from the side of the electrical box instead of the front. That way, you will avoid any sparks (should there be any) when you switch the breaker back on.
• Some people prefer to switch the main electrical switch when working on the circuit breaker for added safety. 

Types of Circuit Breakers

Standard circuit breaker.

Standard circuit breakers monitor the modulation of the electric current coming into your devices and appliances. 

This circuit breaker stops the current from flowing when it detects the excessive flow of electricity. 

Standard circuit breakers come in two forms:

• Single-pole circuit breakers
• Double pole circuit breakers

Single-Pole Circuit Breakers

Single-pole circuit breakers are the most common breakers in homes and buildings. They monitor the electric current’s flow in one wire and trip if that wire experiences a very high influx of electricity.

These breakers deliver only 120 volts and work well for 15 to 30 amp circuits. Single-pole circuit breakers come with one switch in the back. 

Double-Pole Circuit Breakers

The double-pole circuit breakers monitor the current in two wires simultaneously. You will notice two switches on the back of these breakers.

The double-pole circuit breakers will trip even if only one of the wires receives too much current. They can accommodate between 15 to 200 amps while delivering 240 volts. 

Single-pole breakers are a good fit for lighting fixtures and other standard home outlets. On the other hand, double-pole breakers work for larger appliances like dryers and washing machines. 

Ground Fault Circuit Interrupter (GFCI)

The GFCI circuit breaker interrupts the line due to ground faults. They trip when the current starts to follow an uncharted path into the ground. These ground fault surges occur when a foreign conductor, like water, comes in contact with a receptacle .

At the same time, they offer protection against circuit overloads and short circuits. 

GFCI circuit breakers come built into specialized outlets required for wet areas in the home, including :

• Outdoor areas like the balcony, patio, porches, and decks
• Laundry rooms
• Swimming pools
• Six feet from a sink
• Six feet from the bathroom

These breakers help prevent shock or electrocution should the electrical outlet contact water. 

Arc Fault Circuit Interrupter (AFCI) 

The AFCI circuit breaker detects normal and abnormal arc faults, so it will trip when it detects a dangerous arc fault that can cause a fire. 

The AFCI circuit breaker doesn’t work to protect devices and appliances plugged into an outlet. It works to prevent electrical fires due to faulty connections and wiring. The internal sensing mechanism in the circuit breaker senses the conditions of an electric arc, and the circuit trips to avoid an electric fire.

AFCI protection can also be built into an outlet. The National Electrical Code (NEC) requires these types of breakers to feature in :

• Common rooms
• Laundry areas

AFCI and GFCI circuit breakers can co-exist and complement each other for the best protection.

Combination All Fault Circuit Interrupter (CAFCI)

The CAFCI breaker senses and reacts to any electrical fault, including ground and arc faults.

CAFCI is a relatively new technology that meets new NEC requirements for circuits requiring arc and ground fault protection.

Do Circuit Breakers Get Weak?

A circuit breaker can wear out and become weak. If a breaker trips frequently, the thermal or magnetic element can lose calibration, causing it to trip at lower amp loads than intended. A breaker constantly under thermal stress caused by overloading the circuit will eventually trip more frequently.

Let’s not forget breakers are not impervious to damage. As the internal mechanical parts wear out, they become very sensitive and may not hold under normal load amperage and temperatures.

Electricians refer to this as a bad breaker .

Will a Bad Breaker Keep Tripping

By definition, bad breaker malfunctions, so it will keep tripping until it is either replaced or rectified .

A licensed electrician performs this simple test to see if a breaker will keep tripping and determine if it can be repaired or replaced in the following steps.

• The electrician will switch off all the fixtures and appliances in the house. Also, unplug everything.
• Find the malfunctioning circuit breaker . The electrician will go to the electrical box and locate the breaker lighting orange or red or the one with the switch off.
• They will ascertain that it is the correct circuit breaker. After that, the electrician puts the breaker off.
• With the switch on, the breaker is back on as well. The electrician will plug the appliances into the outlet with the problem circuit breaker. Now, they will turn the devices and appliances on. 

If the breaker trips, the electrician will investigate the circuit’s current amount. The breaker is bad if the current is according to the appliance’s rating.

How You know if a Circuit Breaker is Bad

Breakers do wear out after a while. It has a problem if the breaker doesn’t stay on after resetting it.

Since the circuit breaker controls the electric flow in the house, it is essential to monitor it and catch signs that it has gone bad early.

Here are key signs that denote a bad circuit breaker :

It Frequently Trips

Frequent tripping could be because of a bad breaker. After tripping and resetting, your circuit breaker should stay on unless it detects high current flow. 

To ensure that the issue is not the electricity but the circuit breaker, call an electrician to examine your electricity’s flow and determine whether it is the cause of the constant tripping.

If it is not, then the circuit breaker is the problem. 

The Breaker Overheats

Electrical systems will heat up when active. Typically a breaker can heat to about 60°C (140°F) before problems arise.

Terminations for standard rated breakers: UL 489 Paragraph 7.1.4.2.2 says the temperature rise on a wiring terminal at a point to which the insulation of a wire is brought up as in actual service shall not exceed 50°C (122°F). Terminations for 100% rated breakers: UL489 Paragraph 7.1.4.3.3 says the temperature rise on the termination shall not exceed 60°C (140°F). Handles, knobs, and other user surfaces: UL489 Paragraph 7.1.4.1.6 says the maximum temperature on handles, knobs, and other surfaces subject to user contact during normal operation shall not exceed 60°C (140°F) on metallic and 85°C (185°F) on nonmetallic surfaces. Source: https://www.clipsal.com/faq/fa173839

Call an electrician immediately if the breaker becomes too hot.

There are Scorch Marks

Scorch marks around receptacles, appliances, and the electrical box should tell you your circuit breaker has gone bad.

The burn marks indicate that wiring insulation has melted off and the circuit wires are now sparking and emanating heat or fire. That means that the circuit breaker did not interrupt the excess current and reached the wires and burned them. 

You may see melted wire sheathing on the wire where it connects to the breaker.

Professional electricians can use a  thermal imaging infrared camera to locate the heat source. The infrared camera allows them to pinpoint the problem area through the walls and other construction material.

A Burning Smell

Sometimes you may smell the insulation burning, but no scorch marks are present to denote which outlet is the problem. 

With the help of the infrared camera, an electrician can help locate electrical issues. 

If you encounter a burning odor, shut off the main power and call for emergency service from an electrician. 

The electrical wires burn because power surges through the circuit, melting the wire insulation.

What is Nuisance Tripping

Nuisance tripping is when a breaker trips without a fault to warrant the interruption to the electric current flow.

Nuisance tripping occurs due to several reasons:

Stringent Protection on Circuits 

Sometimes the circuit is protected by stringent conditions that detect any variance as a fault and cause a trip. 

Such stringent conditions can be tuned to accommodate the home’s or building’s electric needs.

A Highly Sensitive Circuit Breaker

In some cases, the circuit breaker has been set to susceptible settings so that they can detect even the slightest fault, even a minor average variance.

For example, the manufacturer can set an AFCI circuit breaker to sensitive standards to detect another circuit’s arc. This common issue may occur in a daisy chain where the circuit breakers connect in a linear series. There may be a faulty electrical outlet you are unaware of on the circuit. It is common for multiple rooms to share a breaker in older houses.

The Breaker Encounters Power Under Different Conditions

The variation in the current is normal, but the breaker responds to it by tripping because the flow is outside the breaker’s regular operation.

Your circuit breaker is tripping because the voltage it is encountering is not within the standard operation. You will need to adjust the circuit breaker or the voltage to eliminate nuisance tripping.

The Breaker Trips with Nothing Plugged in

A breaker tripping with nothing plugged in occurs when a hot, neutral wire is touching somewhere in the circuit. The common causes include frayed or damaged electrical wires, loose connections, faulty electrical receptacles, light switches , or dimmers.

Electrical wire damage happens when:

• wiring is chewed by animals such as rats, squirrels , raccoons, etc
• wire sheathing and insulation ages and become frayed
• wires rub against sharp edges such as punch-outs with missing grommets or wire clamps

Loose connections often occur when electrical wire nuts come loose or electrical tape wears out causing wires to touch.

Defective wiring can be anywhere along the circuit, so it’s best to contact a licensed electrician to troubleshoot why the breaker is tripping.

Replacing a Bad Circuit Breaker

• Check the electrical panel to see the compatible approved circuit breaker brands. Also, make a note of the brand of the electric panel . This is to help you determine if there are upgrades they could recommend for the hardware.
• Order online or go to the hardware store and purchase the breaker of the same voltage as the one you are replacing.
• Go and open the electrical box and switch off the bad breaker. Loosen the terminals and remove the wires using a pair of needle-nosed pliers. Ensure the pliers have rubber insulated handles to avoid shock or electrocution since you will use the pliers to grab the live wires from the terminal. That is a safety measure.
• Remove the bad breaker. Replace it with the new breaker and slip its clips into place. Remember to switch off the replacement breaker.
• Next, using the pliers, hold the wiring and tighten the screws on the terminal. It is crucial to ensure that the wires and screws in the terminals are in the right place.
• Turn the breaker on and replace the electrical panel cover.

Can a Breaker Fail Without Tipping

If you have a newer electrical panel , it’s not likely for a breaker to fail and not trip. However, in older breaker boxes like Federal Pacific , the breaker failing to trip is common.

The main reason Federal Pacific was investigated by the Consumer Products Safety Commission (CPSC) was widespread structure fires involving breakers failing to trip when an electrical overload was present. They found that the circuit breaker contacts would fuse to the bus bar.

Modern breakers will trip when a failure occurs as an added layer of safety. Most older breakers did not have these safeguards.

With AFCI breakers, if the Internal sensing mechanism fails, the breaker reverts to a standard breaker. The AFCI sensor mechanism will no longer work, but the breaker would still trip from overcurrent protection. Therefore, you should test the AFCI breaker regularly.

Conclusion 

Listen to your circuit breaker . It’s alerting you of a problem when it trips. That communication could be a problem with the breaker itself, the circuit, or the amount of electric current coming into your home.

Hubert Miles is a licensed home inspector (RBI# 2556) with more than two decades of experience in inspection and construction. Since 2008, he has been serving South Carolina through his company, Patriot Home Inspections LLC. As a Certified Master Inspector, Hubert is dedicated to providing his expertise in home inspections, repairs, maintenance, and DIY projects.

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5+ Reasons Why Your Breaker Keeps Tripping – And How to Fix It

Discover the Top Causes of Circuit Breaker Issues and Simple Solutions to Restore Your Power Safely by Today.

Your circuit breaker will trip once in a while if it detects an electrical fault. After all, that’s what it’s designed to do. Without the breaker, you could be putting yourself, loved ones, and property at risk of electrocutions and fires. But what if the breaker keeps tripping and leaves you in pitch darkness?

Before you call an electrician, consider implementing the tips below. You’ll discover the root causes and what to do if your breaker keeps tripping.

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Why Does My Breaker Keep Tripping?

If your breaker frequently trips, examine your electric power system to determine if the issue results from one of the following causes.

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Circuit Overload

Have you checked whether you’re dealing with an overloaded circuit? A circuit overload occurs when the wires receive more electrical current than they can handle.

Each circuit has a maximum current it can handle. The breaker will trip if it detects that the current exceeds the circuit’s capacity.

Often, a circuit overload happens if you’ve plugged multiple appliances, including high-power devices, into the circuit. You might notice that power goes out in your kitchen or living room when the breaker trips. That’s a telltale that a single circuit in either of the rooms is powering multiple appliances.

• Disconnect all the devices and reset the breaker.
• Before connecting an appliance, allow your electric power system to rest for a few minutes. Plug in your devices one at a time.
• If it trips again as you plug in the devices, relocate the appliances to other outlets.
• If the breaker continues to trip, call an electrician to troubleshoot the problem.

Short Circuit

A short circuit might be another reason why your breaker keeps tripping. Unlike circuit overloads, short circuits have more potential to cause fires.

A short circuit happens when a live or “hot” wire touches a neutral wire. When the two wires touch, they cause a sudden surge of current through the wires. This surge leads to a circuit overload, which causes the breaker to trip. If your circuit breaker fails to trip, it can put your property at risk of fire.

To know whether the culprit is a short circuit, you can look for sparks, smoke, burning smells, or popping sounds. A short circuit will occur in a switch, outlet, or within the circuit breaker due to the following reasons:

• Slipped wires
• Damaged wires
• Loose connections

Do you know what to do if your breaker keeps tripping? Unless you have professional experience, avoid trying to fix a short circuit in your electric power system. The affected cables can instigate fire and further damage. You may also get electrocuted. Call your electrician to fix the problem.

Ground Faults

When it comes to ground faults, a live or “hot” wire touches a ground wire or the breaker’s outer casing. This contact causes a sudden surge of current passing through the breaker. The breaker will trip if it detects more electricity than it can handle.

Ground faults occur when water enters the appliance or an outlet. If it touches the hot wire, the current changes its route and follows the water path. This might cause electrocution if you touch the water with bare hands or feet.

Thankfully, the National Electrical Code (NEC) requires buildings to install Ground Fault Circuit Interrupter (GFCI) outlets . These outlets can detect ground faults and cut off the current.

• Find where the water is coming from and fix it. If it’s damaged roofing directing rainwater into the box, call a roofer to fix it.
• Replace damaged wiring. Call your electrician to replace the damaged wiring to avoid causing further damage.
• If you’ve not installed GFCI outlets, call a licensed electrician to install them for you.

Outdated Wiring

Outdated wiring is prevalent in older homes. If you live in an old house, you’re likely to have a breaker that keeps tripping. The electric power system in that home can only handle low-power devices. If you plug in modern appliances, you might experience frequent breaker trips due to circuit overload.

Old aluminum wires might melt when the circuit overloads. The melting cables might burn the plastic casing, causing a fire.

If you check the insulation in one of your outdated wires, you might find it deteriorating. When this insulation touches a conductor, it can cause a ground fault.

According to the National Fire Prevention Association (NFPA), faulty wiring leading to electrical failure is one of the main causes of fires in residential areas. The wiring can be outdated if you live in a house over 40 years old. Outdated and faulty wiring will likely cause a fire during overloads or short circuits.

The only way to fix outdated wiring is to have it replaced. Find a professional who’ll inspect the wiring and upgrade it.

A Bad Circuit Breaker

If your breaker doesn’t stop tripping even after fixing some or all of the above causes, then your breaker might be faulty. Sometimes, a breaker will trip even when it’s newly installed. This might be due to an undersized breaker, manufacturer’s defect, or loss of efficiency. If one of these is the case, your breaker will trip even if there are no overloading, short circuits, or ground faults.

When inspecting your old wiring, check whether you’re working with an old breaker. It may no longer produce electricity for your modern appliances if it’s old. You should also check whether the breaker is tripping due to a lack of maintenance.

Avoid tampering with your faulty breaker, especially if you don’t have the necessary skills. Call a certified electrician to diagnose the problem and fix it. If your breaker is old or beyond repair, they can replace it.

How To Reset a Tripped Breaker

If your breaker won’t stop tripping, resetting it is the first thing you might consider. Resetting the circuit breaker is a great way to determine what causes the tripping.

To reset your breaker:

• Locate the appliance’s handle or switch and move it to the “OFF” position.
• Before this, ensure you’ve unplugged all the devices.
• Move the switch to the “ON” position.

When turning the switch on, the breaker might produce sparks that might cause a fire or electrocution. To be safe, avoid standing near and directly facing the panel. You can stand at the side or a few steps back. After resetting, allow the breaker to rest for a few minutes before plugging in your devices. Now you know what to do if your breaker keeps tripping.

The following are some of the most common questions people have asked about circuit breakers.

How can you tell if your circuit breaker has gone bad?

The following symptoms should help you know that your circuit breaker has gone bad:

• Frequent tripping
• Unable to reset
• Burnt smell
• Scorch marks on its box
• Visibly damaged breaker
• Worn-out breaker
• Hot circuit breaker

What causes the breaker not to reset?

A breaker might fail to reset if it has gone bad. The breaker won’t reset if you’ve plugged in too many devices that consume a lot of power.

What is the average life of a circuit breaker?

The Consumer Product Safety Commission (CPSC) states that the lifespan of breakers is between 30-40 years . Factors such as fluctuating voltages and poor power ratings can affect the life of your breaker.

Jeff (pen name for privacy) is our primary contributor. Previously, he has worked at 84 Lumber as a manager trainee and contractor sales rep. Before that, he worked for a local plumbing firm doing everything from rough-ins to septic repair and more.

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How to Reset a Tripped Breaker

What to do when a circuit breaker trips.

Lee has over two decades of hands-on experience remodeling, fixing, and improving homes, and has been providing home improvement advice for over 13 years.

The Spruce / Kevin Norris

What Causes a Tripped Circuit Breaker

Safety considerations, how to avoid tripped breakers, when to call a professional.

• Total Time: 5 mins
• Skill Level: Beginner
• Estimated Cost: $0

A power breaker trip is an annoying occurrence when the power shuts off and you can't use the microwave, lights, or router. A breaker trip is far more than simply annoying when you need that router to send off a time-sensitive work assignment or when medical devices are diverted to time-limited standby power. Fortunately, it's easy to fix a circuit breaker trip in just a few minutes.

Tripped Circuit Breaker

A tripped circuit breaker is when a circuit breaker automatically shuts off to prevent devices on the circuit from overheating or from receiving excessive power. A circuit breaker protects your home against damaging or harmful short circuits and overloads.

• Overloaded circuits : When too many devices are operating on the same circuit and are attempting to pull a higher power load than the circuit can carry, the circuit breaker will trip.
• High-power devices : High amp devices like microwaves , dryers , wall heaters , or A/Cs are turned on for sustained periods, they can cause a power breaker trip.
• Short circuits : In a short circuit, a powered or hot wire makes contact with a neutral wire or when wires are loosened .
• Ground faults: In a ground fault, a hot wire touches anything that is grounded, such as the side of a metal electrical box , an appliance, an outlet , or a bare ground wire.

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Watch Now: How to Safely Reset a Tripped Circuit Breaker

Working around an electrical service panel or circuit breaker board can be dangerous. Your home’s entire electrical load is contained in that box, concentrated around the metal lugs where the service drop’s wires enter the box. Unscrewing and removing the inner dead-front cover within the service panel exposes the highly powered lugs.

What You'll Need

Equipment / tools.

• Circuit breaker directory (if available)
• Rubber-soled shoes
• Safety glasses

Instructions

Locate a flashlight.

Circuit breaker panels tend to be located in out-of-the-way locations with little, if any, ambient light. Find a flashlight. Use the light from a phone if necessary.

Turn Off Devices on the Circuit

Turn off all devices on the electrical circuit. This includes the device that may have caused the breaker to trip, such as a microwave, hairdryer, or A/C, plus all other devices on the same circuit.

Find the Electric Service Panel

The electric service panel, sometimes called a circuit breaker board, is a metal box with a door. The box may be inset in a wall, its face flush with the wall, or surface-mounted where the entire box is exposed.

Places to look: garage , closet, pantry near the kitchen, basement , mudroom, hallway leading to garage or backyard.

One clue is to first find the electric service drop from the main power lines. Usually, your home’s service panel is located below and nearby, on the inside of your home.

Open the Door to the Service Panel

Open the door to the service panel by sliding the plastic switch to the side or up. Next, swing the door open. Use the inset plastic switch as a handle to pull the door open.

Adhi Syailendra / Getty Images

Locate Tripped Breaker

The handle of a tripped circuit breaker should be in the middle position—not left or right. Visually or by feel, locate any breaker handles that differ from the right or left positions:

• Tripped breakers : Tripped circuit breakers have a soft or springy feeling when you lightly press them leftward or rightward.
• Live/active breakers : Breakers that are not tripped are either firmly left or right (depending on which side of the box you're looking at).

Certain breakers, such as Eaton breakers , trip to the off position, not the middle position. Check manufacturer's instructions for your particular product.

Turn the Circuit Breaker Handle to OFF Position

Flip the circuit breaker handle to its firm OFF position, toward the outer edge of the service panel (away from the centerline).

Double and Tandem Breakers

Double pole breakers are double-wide breakers with wide handles. They are often used for dryer or oven circuits. Both sides of double pole breakers operate as one. Tandem breakers are two narrow breakers that share the space of one breaker. Each side operates individually.

Turn the Circuit Breaker Handle to ON Position

Flip the circuit breaker handle to its firm ON position, toward the centerline of the service panel. The handle should seat firmly in place and should make an audible click.

Test Circuit

Turn the device such as the light or A/C back on. If you believe the breaker tripped due to an overload, it’s best to turn on only one device at this time, not multiple devices. Also, choose a device with a lower power draw such as a light fixture.

• Remove some devices from the overloaded circuit and plug them into other circuits that aren’t drawing as much power.
• Avoid running many devices on the circuit at the same time. In a kitchen , for example, stage cooking activities that require power so that they happen in succession, not all at once.
• Install GFCI outlets so that the outlet shuts off before the entire circuit breaker shuts down in the case of a ground circuit. Just note that GFCI outlets are not circuit overload protection, but protection against dangerous ground faults.
• Replace old outlets, light fixtures, and switches which may create short circuits or trip breakers.
• Have an electrician separate hardwired devices that are drawing too much power from a single circuit. The electrician can move devices to another circuit or can set up an entirely new circuit to relieve the load.
• Replace the circuit breaker.

A qualified, licensed electrician is trained to detect the cause of tripped breakers and to fix those causes. If your problem of tripped circuit breakers is more than just an overloaded circuit, you may want to seek the help of an electrician. Unless you are an advanced do-it-yourselfer , it’s best to hire an electrician to wire up a new circuit breaker .

Electrical Panel Safety . Office of Congressional Workplace Rights.

CH Circuit Breakers . Eaton.

Ground-Fault Circuit Interruptors . International Association of Certified Home Inspectors.

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What to Do If Your Circuit Breaker Trips

Basically, electric current flows into your home into the breaker box (usually built in the garage or in the basement in the home) where it’s split into a number of circuits and sent throughout the house.

For rooms that only need electrical power for small things like lighting fixtures and televisions, you usually only need 15-amp circuits. For rooms with bigger appliances, such as the kitchen or bathroom, you’ll usually have 20-amp circuits. Certain appliances, like the oven or dryer, are so power consuming they need 30 – 50-amp circuits all to themselves! When it is said that a circuit breaker “trips,” it means that circuit has detected what’s known as a fault condition and has shut itself off to prevent the wiring from overheating and potentially igniting itself.

Resetting a tripped circuit breaker is generally pretty easy – you just need to go back to the electrical panel, find the circuit that’s not facing the same direction as the rest and flip it back to it’s original setting. If the breaker trips again right after you do this, that’s a problem – you’ll have to figure out the cause of the problem before you can fix it.

If your circuit breaker trips right after being reset, you could be facing one of three issues:

•  an overloaded circuit
•  a short circuit
•  a ground fault

Overloaded Circuit

An overloaded circuit is the most likely problem that would make your breakers trip. In simple terms, it means there is more current flowing through the circuit than it is made to carry, so it shuts off to stop any damage.

Remember earlier when we spoke about the different levels of current certain rooms in your home receives? When you are searching for an overloaded circuit, try finding any appliances on the overloaded circuit that would be using more electricity than the circuit would allow. Pay extra attention to objects such as space heaters, toasters, hair dryers straighteners, etc. – These things tend to consume the most power.

The solution for overloaded currents is pretty simple – just unplug things you’re not using! If this doesn’t solve the issue, call an electrician – you may have loose connections somewhere in the house, though this is pretty rare.

Short Circuit

If the problem is not being caused by an overloaded circuit, most likely a short circuit is the issue. Short circuits are a slightly more serious problem than overloaded circuits, which happens when the hot (black) wire touches another hot wire or a neutral wire. The surest way to tell if you are having a short circuit is to first check your power cables for damage or a melted covering (make sure the appliance is unplugged first)  and to check the power outlets or plugs for discoloration or a burning smell. If you can’t locate the problem, hire an electrician to take a look at it.

Ground Fault

If you’ve looked at the two other possibilities and checked for problems, but you don’t think you have an overloaded or a short circuit, you should check to see if a ground fault is causing your troubles. A ground fault exists when the hot (black) wire touches the ground (bare) wire or the walls of a metal outlet box. If you have a ground fault, it’s best to have a  Vancouver electrician take care of the problem.

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Replaced a breaker today on the garage circuit of a ten year old rental home. As far as I know, it powers the overhead light garage door recepticle, and one gfci plus the outlets after it. What confuses me is why this breaker trips after about five minutes with no draw except the garage door sensor beam. After replacing the 20 amp breaker(#12 wire) and the gfci outlet, it's still tripping. I thought a breaker only trips when there is a short or too heavy a current draw? Why would this breaker act like it gets hot and trip after five minutes with such a light load? Could there be a reason breakers act in this manner otherwise, bad ground/nuetral/loose wire in the box? I didn't check the tightness of the white or ground when i replaced the breaker. Is my only other option is to start pulling and retightening all the outlets and ceiling light wire nuts etc?  

md will be patrolling shortly, wait for it.  

There must be something putting a heck of a load on that breaker. A breaker that is only slightly overloaded will can take quite a while to trip. Your first course of action is to get an amprobe and check the current draw on the conductor right at that breaker. If this is a 20 amp breaker that takes about 5 minutes to trip, I suspect you'll read something like 24 amps or so. There may well be something like an outdoor receptacle or a post light wire feed on this circuit. These are the usual suspects for "slight overloads". Outdor receptacles draw damp really bad inside, slightly shorting out in a semiconductive overload type situation. Ants and other insects can pack outdoor receptacles full of nesting type mud and such, shorting them out and overloading them. Underground UF cables to post lights and other such appurtenances can get a little nick in them over time, start to corrode and "leak" current into the earth, slightly overloading the breaker. Another possibility is that a tight staple on one of the cables finally pinched through the insulation of the romex. Yes, it can take years and years sometimes for this to occur, when the insulation finally "cold flows" enough for the staple to contact the bare conductors. This is usually a dead short and not a overload. IF your amprobe readings indicate a current draw more in line with what you'd expect from an idle garage door opener, you have just diagnosed a bad breaker. Breakers, despite what the clerk at a home center might tell you, very seldom "go bad". A breaker installed in a damp ambient, such as a very wet basement or in an outdoor panel in bad shape, are prime candidates for failure. Take your amprobe reading first, otherwise you're just guessing. That's step #1. If you get a high reading, start unhooking sections of the circuit to see what section contains the equipment or device drawing such a great amount of current. Don't rule out the possibility that the GDO might be hosed up too.  

I suspect the outdoor post light now, we had a thaw with rain. that light has to be on that circuit being so close to the garage. Ill test the amps at the breaker and then outside. Thanks for the response, I love these forums even when i don't have a problem.  

flyrod said: I suspect the outdoor post light now, we had a thaw with rain. that light has to be on that circuit being so close to the garage. Ill test the amps at the breaker and then outside. Thanks for the response, I love these forums even when i don't have a problem. Click to expand...

great diagnosis You saved me alot of time and you were 100% right. A nicked feeder to the lamp post on that circuit that only malfunctioned when the ground was wet. Thanks again  

I'd like to take this opportunity to pat myself on the back. Glad everything worked out for you.  

Hi guys. I am new. I have a similar problem of a tripped breaker. it is a 15 amp circuit breaker in a new house and was working well with about 3 plugs, 2 gfi plugs, 3 lights on it previously. There was a small apartment sized freezer in one room and a small bar fridge as well. Both the bathroom and the pantry lights were on this one as well as 1 outdoor plug and indoor plug near the outdoor plug, both GFI protected. We have been plugging our cars into the outdoor receptacle lately as it has been cold, but we had done this previously with no real issues. There is also a space heater on the circuit. I have checked the active light boxes in the pantry for loose connections as well as the plugs that were active in the pantry with the freezer/fridge into them and they all seemed good. Thinking the freezer might be faulty and tripping it, I unplugged it but that does not seem to stop the tripping. Also, when I turn the breaker back on again, there is sometimes 5 minutes before it trips again, and strangely about a one minute delay before the lights come back on in the bath and pantry once the breaker is switched on. I am wondering if perhaps it is something to do with the motion sensor light switch in the pantry but not sure if that would explain the light -on delay? Also wondering if there was maybe a nicked cord outside to the car heater that would be causing issues, but wouldn't that first trip the GFI on the plug if it were an issue? Could also be a faulty breaker? Thanks for the help. Scott.:vs_worry:  

It sounds like a connection is opening under the heavy load of the heater.  

The circuit is overloaded.  

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Water Heater Trips Breaker After a Few Minutes-Troubleshooting Guide

Water heaters are essential appliances that provide us with hot water for various purposes, such as bathing, washing dishes, and doing laundry. They work diligently behind the scenes, often unnoticed…

• Written by: Robert Brooks
• Updated on: June 30, 2023
• Topic: Cooling , Heating

This post may contain affiliate links. Please read my  disclosure policy .

Water heaters are essential appliances that provide us with hot water for various purposes, such as bathing, washing dishes, and doing laundry. They work diligently behind the scenes, often unnoticed until an issue arises. One such problem that can leave homeowners frustrated and inconvenienced is when a water heater trips the circuit breaker after only a few minutes of operation. 

In this troubleshooting guide, we will explore the potential causes of this problem and provide solutions to help you diagnose and fix it.

Understanding Water Heaters and Circuit Breakers

Before delving into the specifics of the problem, it is crucial to understand the basic workings of both a water heater and a circuit breaker.

A water heater consists of a tank, a heating element (typically electric or gas), and various safety features. The heating element warms the water stored in the tank, maintaining it at a desired temperature until it is needed. Once the hot water is used, the tank refills and reheats the water to maintain a consistent supply.

On the other hand, a circuit breaker is a safety device designed to protect electrical systems from overloads and short circuits. It is located in the main electrical panel of your home and acts as a switch that automatically shuts off the flow of electricity to a circuit if it detects an excessive current. This prevents wires from overheating, which could lead to electrical fires.

The Frustrating and Potentially Dangerous Problem

When a water heater trips the circuit breaker after only a few minutes of operation, it can be both frustrating and potentially dangerous. Frustrating because it disrupts your daily routines and leaves you without hot water when you need it the most. 

Dangerous because the repeated tripping of the breaker may indicate an underlying electrical issue that needs immediate attention. Ignoring the problem could pose a risk of fire or electrical damage to your home.

Possible Causes and Solutions

Several factors can contribute to a water heater tripping the circuit breaker. Let’s explore some of the common causes and potential solutions:

Electrical Overload: One possibility is that the water heater is drawing more current than the circuit can handle. This could be due to a faulty heating element, a damaged thermostat, or an accumulation of sediment in the tank. In this case, it is advisable to call a professional plumber or an electrician to inspect and repair the water heater.

Short Circuit: A short circuit occurs when a hot wire comes into contact with a neutral wire or the ground. This can happen if the wiring connections within the water heater are loose or damaged. It is crucial to have a qualified electrician inspect the wiring and make any necessary repairs.

Ground Fault: A ground fault occurs when a hot wire comes into contact with a grounded surface, such as the metal body of the water heater. This can happen if the insulation on the wiring wears off or if there is a fault in the electrical system. A licensed electrician should be consulted to investigate and rectify any ground fault issues.

Possible Causes of Water Heater Tripping Breaker After a Few Minutes

When a water heater repeatedly trips the circuit breaker shortly after being turned on, it’s important to identify the underlying cause to resolve the issue effectively. The causes can generally be categorized into three main categories: 

Corrupted or damaged parts, damaged or ineffective wiring, and water leaks. Understanding these causes and their effects on the water heater and the breaker will aid in the troubleshooting process. Let’s explore each category in detail:

Corrupted or Damaged Parts

• Faulty Heating Element: A malfunctioning heating element can draw excessive current, causing the circuit breaker to trip. Over time, heating elements can become corroded, leading to inefficient heat transfer and increased electrical resistance. This places a strain on the circuit, resulting in breaker trips.
• Defective Thermostat: A faulty thermostat can cause the heating element to remain active for longer than necessary, causing the water temperature to rise excessively. This overheating can trigger the breaker to trip as a safety measure.
• Damaged or Ineffective Wiring:
• Loose Connections : Loose electrical connections within the water heater can lead to arcing, overheating, and increased resistance. These issues can cause a surge in current flow, leading to the breaker tripping. Loose connections can occur at various points, including the heating element terminals, control panel, or junction box.
• Damaged Wiring: Worn or damaged wiring, such as frayed insulation or exposed conductors, poses a risk of short circuits or ground faults. If the hot wire comes into contact with the neutral wire or the ground, it can cause an overload and trip the breaker. This can occur due to wear and tear, pests, or physical damage to the wiring.

Water Leaks

• Water and Electrical Contact: If water leaks into electrical components of the water heater, such as the heating element or the control panel, it can create a dangerous situation. Water is a conductor of electricity, and when it comes into contact with live electrical parts, it can cause short circuits, ground faults, and breaker trips. Leaks can result from corroded pipes, faulty valves, or a damaged tank.
• Grounded Heating Element: A grounded heating element occurs when the element’s metal sheath comes into contact with the water inside the tank. This can happen due to corrosion or physical damage. The grounding causes the breaker to trip as a safety measure to prevent electrical shocks.

By considering these three categories of causes and examining specific examples within each, you can effectively troubleshoot and resolve the issue of a water heater tripping the breaker after only a few minutes of operation. In the following sections, we will provide step-by-step instructions for diagnosing the specific causes and offer practical solutions for fixing them, ensuring a safe and reliable water heater system.

How to Troubleshoot and Fix the Problem

Before attempting any troubleshooting or repairs on your water heater or circuit breaker, it is crucial to prioritize safety. Electrical systems can be hazardous, so it’s essential to take the following precautions:

Turn off the Power: Locate the circuit breaker that controls the water heater and switch it off. This will ensure that no electricity is flowing to the unit while you work on it.

Use Protective Gear: Wear insulated gloves and safety goggles to protect yourself from potential electrical hazards. Always exercise caution when working with electrical components.

Utilize a Multimeter: A multimeter is a handy tool for troubleshooting electrical issues. It can measure voltage, resistance, and continuity. Before proceeding with any testing, ensure that the multimeter is set to the appropriate function and range.

Now let’s walk through the process of troubleshooting and fixing the problem:

Testing Heating Elements and Thermostats:

• Remove the access panels from the water heater to gain access to the heating elements and thermostats.
• Set the multimeter to measure resistance (ohms).
• Disconnect the power wires from the heating element or thermostat being tested.
• Place the multimeter leads on the terminals of the component being tested.
• Compare the resistance reading with the expected values provided by the manufacturer.
• If the resistance reading is significantly different or infinite (open circuit), the component is faulty and needs to be replaced.

Testing Wiring

• Ensure the power supply to the water heater is still turned off.
• Disconnect the power wires from the water heater’s circuit breaker or junction box.
• Connect one multimeter lead to the hot wire and the other lead to the neutral wire.
• Check the resistance reading, which should be close to zero or a very low value.
• Any significantly high resistance reading or no reading at all indicates a wiring issue that needs to be repaired or replaced.

Identifying the Faulty Component

• By comparing the readings obtained in the previous steps with the expected values, you can identify the faulty component. If a particular heating element, thermostat, or wire shows abnormal readings, it is likely the cause of the breaker tripping.

Repairing or Replacing Faulty Components

• If you have identified a faulty component, follow the manufacturer’s instructions for replacing or repairing it. This may involve disconnecting wires, unscrewing or detaching the component, and installing the new one in its place.
• Ensure all connections are secure and tight, and replace any damaged wiring or insulation.
• If you are unsure or uncomfortable with performing the repairs yourself, it is recommended to contact a qualified professional, such as a plumber or electrician, to ensure the job is done safely and effectively.

Read more posts here .

Robert Brooks

I'm an HVAC enthusiast and a passionate writer dedicated to sharing valuable insights and practical tips about heating, cooling, ventilation, and air conditioning systems.

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AC Breaker Keeps Tripping Breaker: 9 Common Culprits & Fixes

“My AC keeps tripping the breaker. What’s wrong? How do I stop my AC from tripping the breaker?”

AC tripping the breaker is annoying. Even more troublesome, repeatedly trying to run an air conditioner that keeps tripping the breaker can result in permanent damage to the AC unit. So, easy on the breaker reset button ; you should diagnose and fix the problem first.

Here is what might be happening with your air conditioner:

• Air conditioner trips the breaker immediately . When you turn the AC unit, the breaker will flip immediately or only after a few seconds.
• AC trips breaker after 5 minutes or so. The AC starts OK, but after a few minutes, the breaker will trip. This, for example, is typical for the AC compressor tripping breaker (outside AC unit tripping breaker).
• AC trips breaker after a few hours . An air conditioner will work fine for several hours before it trips the breaker.

To help everybody out, we are going to look at how to check why the AC unit keeps tripping the breaker. We are going to check for 9 key culprits that cause the AC circuit breaker to keep tripping.

There are only two roots for why your AC keeps tripping:

• You have a faulty breaker . This involves issues with circuit breaker, AC wiring, and electrical short circuits.

As every HVAC professional does, you should check these culprits one by one, eliminating the causes as you go. Once you have correctly detected what is causing the AC breaker to keep tripping and fix the problem, your AC unit should work smoothly again.

Note: For every culprit, we are going to tell you if it causes the AC breaker to trip immediately, after a few minutes, or after a few hours, and explain why.

Here are the most common culprits (listed one by one) for any air conditioner type – be it central air, mini split, portable, or window air conditioner – to keep tripping the breaker. We are going to start with breaker-related issues (#1 to #3) and continue with AC unit-related issues (#4 to #9) :

Table of Contents

#1 Circuit Breaker Is Bad, Loose, Or Undersized (Causing AC To Trip Breaker Immediately)

If you are lucky, the AC breaker keeps tripping due to a bad breaker. This is one of the easiest problems to solve; problems with the AC unit itself are harder and costlier to fix.

It’s not uncommon to see a bad circuit breaker. Both new and old breakers can go bad due to wear-and-tear or acute amp surge that fries the breaker. Over time, even well-installed circuit breakers can come loose and cause all sorts of issues, including tripping unexpectedly.

In limited cases, we also see that homeowners have installed a circuit breaker that is just too small. Example: A 3-ton AC unit on 220V has a max. wattage of about 3,600 watts and requires a 25A or 30A breaker. You can check what size AC breaker you need here accounting for NEC 80% ampacity rule .

Dead giveaways of a bad breaker are:

• Breaker smells like something is burning.
• Breaker is hot to the touch.
• Breaker keeps tripping all the time.

Solution: First, you need to check if you have a bad breaker. Secondly, check if the breaker is loose; try to nudge it from left to right to set it back in the required position. Of course, you will also have to check the above article if indeed your breaker is big enough to handle all the amps that you need to run your AC unit.

If you have a bad breaker, you just simply replace it. Get a new one – circuit breakers are quite inexpensive – and be sure to check that it has the same ampacity as the old one. Everybody can DIY breaker replacement; you can consult this guide on how to replace a circuit breaker if you need some help.

Once you have a working breaker again, your AC should stop tripping it.

#2 Wrong AC Wiring (New Air Conditioners Trip Breaker Immediately)

Another possibility, especially for new air conditioners, is wrong wiring. If you have a newly wired thermostat or you have just replaced an old thermostat, chances are that not all wires are connected to the right sockets.

For air conditioners, you will have to connect:

• Blue or yellow wire is meant for cooling. These wires are connected to the Y terminal in a standard thermostat.
• Red fire for power, connected to R.
• Common wire (usually black) connected to C.

For more advice on how to wire a thermostat, you can consult the thermostat wiring guide here .

Wrong wiring will lead to the outside AC unit tripping breaker immediately (central aircon or mini splits). This is a standard AC compressor tripping issue; the compressor creates a surge of amps that can hit an undersized breaker if it’s wrongly wired.

Solution: Check that all the wires are in the right sockets. In limited cases, you will have to can an electrician to fix this, but most people can use the guide cited above to adequately wire a thermostat themselves.

#3 Electrical Short Circuit (Unsheathed Wires Touching)

Any short circuit can cause a spike in electrical current (amps) that will trip the breaker. In fact, one of the reasons why we use circuit breakers in the first place is to protect our circuits against short circuits.

In the case of wiring air conditioners, the short circuit happens when two exposed wired (unsheathed because the coating has been degrading for years) touch.

Example: Let’s say that the blue and red wire touch. This doesn’t happen if they are properly insulated. However, over time, insulation can decay. When this happens, the electrical current from two wires will travel along a single wire (the one with the least electric resistance, according to Ohm’s law). This will cause a spike in amps that can knock out the breaker.

Admittedly, it’s very difficult to tell if you are experiencing a short circuit. You do have to go to check all the wires to see if the insulation is damaged. This short circuit problem also causes the AC to trip break immediately, after 5 minutes, or even after 10 hours of running the AC unit. It is not time-specific which makes the detection even harder.

Solution: If you suspect that your AC unit tripping the breaker due to a short circuit, you can check the wires yourself or call an electrician. Once you find faulty wires that are causing the short circuit, you have to reapply the coating, or, in more cases, just replace the wire.

All of this, of course, is easier said than done.

Once you have eliminated the thermostat-related problems, you can start checking if there is something wrong with your air conditioner unit, resulting in the breaker tripping repeatedly:

#4 Dirty Condenser Coils (Causing Outside Air Conditioner Circuit Breaker To Trip)

A lot of AC tripping breaker problems are caused by the air conditioner overheating. One of the most common examples of this is the air conditioner circuit breakers outside to trip.

The outdoor condenser coils are exposed to the environment. That means that anything from dirt, leaves, dust, and grass, can find its way into the AC outdoor unit (you may even find a dead rat in there) . If this dirt accumulates on the fairly exposed condenser coils, you will have problems with the outdoor AC unit tripping breaker.

These condenser coils are basically superb heat exchangers . They expel all the heat that is generated in the refrigeration cycle. If these condenser coils are coated with dirt, for example, their ability to conduct heat is impeded. Obviously, if the coils can’t give away enough heat, the whole outdoor unit will get overheated.

And overheating leads to the AC tripping the breaker.

In this case, the AC breaker won’t turn trip immediately. It won’t even trip in 5 minutes or so. Dirty condenser coils are one of the most common reasons why the AC trips breaker after a few hours. The AC will overheat in time and that can take anywhere from some 10 minutes to several hours.

Solution: Clean the outdoor condenser coils. Open the outdoor unit and check if there is dirt coating on the coils. If there is, clean out the debris and spray them with detergent or coil cleaners. You can read how to clean the condenser coils on the Carrier website here .

After the outdoor coils are cleaned, they can adequately exchange heat again. That means that all the heat that has to be expelled via the coils will be released into the atmosphere again. As a result of the AC unit not overheating, you will no longer have a problem with AC breaker tripping.

#5 Dirty Air Filters (Restricted Airflow Results In Overheating And Trips Breaker)

Dirty air filters are another common culprit for an AC unit to trip breaker after a few hours.

We all know that every AC should have adequate airflow. If the filters are dirty, they restrict the airflow. This can cause a series of unwanted issues and will eventually lead to AC overheating. And, as we know, if the AC is overheating, it will inevitably trip a circuit breaker.

Everybody pretty much knows what to do with dirty air filters, right?

Solution: Clean or replace the air filters. This will again enable the AC unit to operate at sufficient airflow. The AC unit will not overheat. The AC breaker will not trip. It’s a pretty simple fix.

#6 Compressor Fails To Start (Or Hard-Starting Compressor)

Out of all the things that may go wrong, the compressor-related issues are the worst. When you have a faulty compressor, you will in almost all cases have to replace it. This replacement can be so costly that homeowners with older units usually just replace the whole air conditioning system.

Now, if you have a faulty compressor (the reason might also be a fault capacitor), you can expect two things to happen:

• Compressor doesn’t start at all. Regardless of this, the AC compressor can still trip the breaker. You will notice that in this case, the AC compressor trips the breaker immediately.
• Compressor starts slowly (usually takes a few seconds) . This is an indication of a faulty compressor and might lead to the AC compressor tripping the breaker after a few minutes.

The compressor – the main part of the AC – is responsible for compressing the refrigerant gas. If it doesn’t do its job, the AC unit might start overheating and blowing warm (instead of cold) air.

When the compressor doesn’t start at all, there is usually a spike in amps along the compressor wire to the breaker. This will trip the breaker immediately.

If you have a hard-starting compressor, the breaker won’t trip immediately. Nonetheless, such a compressor repeatedly can repeatedly send amp spikes towards the breaker in order to keep running. Eventually – usually in a few minutes or so – one of these amp spikes will overwhelm the circuit breaker and the breaker will flip.

Solution: This is a hard pill to swallow but you will probably have to replace the AC compressor. This is a complex replacement process you can’t do yourself; you will require an HVAC professional to do it for you.

You can, of course, take this ‘opportunity’ to replace the AC unit altogether. If your AC unit is past its prime (15+ years old), replacing the whole air conditioner makes sense in many cases.

#7 Compressor Is Grounded (Wires Touching The Sides)

Another problem a compressor might have – much less troublesome – is some wire displacements. Namely, the electrical wires that power the compressor are unsheathed and touching the compressor casing. It’s always best to check if everything is OK with the compressor wires.

Of course, if the wires touch the metal casing, all that electricity will go to the ground (we talk about the compressor being grounded). Inevitably, this will cause a spike in amps that will knock out the breaker.

Now, this may happen when you turn on the AC, after a few minutes, or even after several hours. The vibrations in the compressor pretty much displace one wire so much that it touches the casing, and that may happen immediately or even after some hours.

Solution: Check if all the wires that go in and out of the compressor still have their insulation coating on them. Also, check if the wires are neatly packed and away from the casing. If you find an exposed wire close to the casing, it’s very likely this is the wire that keeps tripping the AC breaker.

Use a plastic or nylon line to fix the wire in place, away from the casing. You can even replace that wire if you see that the insulation coating is severely damaged. After you do that, your breaker should stop tripping.

#8 Low Refrigerant Levels (Lines Leaking Freon)

All air conditioners work based on the refrigerant cycle. For this cycle to work properly, the lines have to be full of freon (refrigerant gas like R22, R410A, and so on). If you have a leak in the refrigerant lines, there will be less refrigerant within the lines which will lead to AC overheating and potentially tripping the breaker.

Example: If your window AC keeps tripping the breaker, the refrigerant leak could be the culprit.

Solution: You have to check if the refrigerant levels are indeed low by measuring the refrigerant pressure. If freon is indeed leaking out, you will first have to seal the leak and then recharge the AC unit.

In most cases, you will need professional help for this.

If you want to know how a professional refills the freon, you can consult this article about how to recharge a window air conditioner .

#9 Faulty Fan Motor (Leading To Overheating And Breaker Tripping)

In limited cases, we also see that a faulty fan motor is responsible for the outdoor AC unit tripping a breaker after a few hours.

The outdoor fan produces airflow that expels the heat into the environment (cooling the condenser coils). That fan is powered by the motor. If the motor doesn’t produce adequate power output, the fan doesn’t produce adequate airflow, and the outdoor AC cooling process is impeded.

This can lead to AC overheating and tripping the AC breaker. This happens when the AC is overheated enough; it takes a few hours (not on start-up or after a few minutes).

Solution: Check if the outdoor fan is spinning. If not, the problem might be a faulty fan motor. You will probably need to replace it. Before you do that, do check out all the reasons why outdoor AC is not spinning here . Namely, a faulty fan motor is not the only reason why the condenser fan is not spinning.

After you fix this and the fan is spinning again, there won’t be overheating, and the outdoor AC unit will stop tripping the breaker.

How To Call If You Need Professional Help?

As we have seen, both the diagnosis of why the AC keeps tripping the breaker as well as the fixes are not a piece of the case.

From checking the breaker to checking if something is wrong with your AC unit, there is quite a lot of knowledge (and experience) that guys fixing AC units should have.

This article was a general overview of the causes for AC to keep tripping the breaker. If, however, you realize you will a professional help, you can turn to your local HVAC companies.

We hope this helps somebody figure out why the AC keeps tripping the breaker and how to go about fixing it by themselves or with professional help.

Related posts:

• AC Making Noise: 5 Air Conditioner Noises + How To Fix Them
• Window Air Conditioner Freezing Up In Summer? Here’s What Is Wrong
• Thermostat Not Reaching Set Temperature: 7 Causes + Fixes
• How To Tell If AC Is Frozen? 3 Tell-Tale Signs (Ice On Evaporator Coils)
• How To Measure Superheat? Easy 10 Step-By-Step Guide

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Space heater keeps tripping breaker after a few minutes.

Eng. Nelson K. FAQs , Space Heaters 126 Views

Space heaters are a popular and convenient way to heat a room, but they can be a source of frustration if they keep tripping the circuit breaker.

When a space heater repeatedly trips the breaker, it can be a sign of an underlying problem that needs to be addressed.

In this article, we will explore the common causes of space heaters tripping the circuit breaker and what you can do to prevent it from happening.

Article Contents

Why Space Heaters Trip Breakers

Some of the reasons why space heaters may keep on tripping your circuit breaker after a few minutes include circuit overload, faulty space heaters, damaged circuit breakers, or even faulty extension cords [ 1 ].

These have been discussed in detail here below:

Circuit Overload

One of the most common reasons why a space heater trips a breaker is because it’s drawing too much power from the circuit.

This can happen if you have too many other appliances or devices on the same circuit. If you’re using the heater in a room with other electronics, try unplugging some of them to see if that solves the problem.

Faulty Space Heater

Another reason why a space heater might trip a breaker is that the heater itself is faulty. This can happen if the wiring inside the heater is damaged or if there’s a short circuit somewhere [ 2 ].

If you suspect that your space heater is faulty, stop using it immediately and have it inspected by a professional.

Damaged Circuit Breaker

Sometimes the problem isn’t with the space heater itself but with the circuit breaker. If the breaker is old or damaged, it might trip more easily than it should.

If you suspect that the breaker is the problem, you should have it inspected by a professional electrician.

Extension Cords

Using an extension cord to plug in your space heater can also cause it to trip the breaker. Extension cords are not designed to handle the amount of power that a space heater requires, so it’s best to avoid using them altogether.

In conclusion, there are several reasons why a space heater might trip a breaker. By understanding these common causes, you can take steps to prevent them from happening and stay warm and comfortable all winter long [ 3 ].

Impact of Overloading Electrical Circuits

Overloading electrical circuits can have serious consequences, including tripping the circuit breaker and causing damage to appliances and electrical systems.

Space heaters, in particular, are a common culprit of circuit overloads, especially in older homes with outdated electrical systems.

When too many devices are plugged into a single circuit, the electrical current can become overloaded, causing the circuit breaker to trip. This can be a safety hazard, as overloaded circuits can overheat and potentially start a fire.

In addition to the risk of fire, overloading circuits can also cause damage to appliances and electrical systems. The excess electrical current can cause appliances to malfunction or even completely fail.

It can also cause damage to the wiring and electrical components of the home, leading to costly repairs.

To prevent circuit overloads, it is important to be mindful of the number of devices plugged into a single circuit.

It is recommended to use separate circuits for high-wattage appliances, such as space heaters, and to avoid using extension cords whenever possible.

Regular electrical inspections by a licensed electrician can also help identify potential issues and prevent overloading circuits.

By taking these precautions, homeowners can ensure the safety and longevity of their electrical systems and appliances.

Choosing the Right Space Heater

When it comes to choosing the right space heater, there are a few factors to consider. Here are some things to keep in mind:

1. Size and Power

The size of the space heater you need depends on the size of the room you want to heat. A general rule of thumb is to choose a heater that provides 10 watts of heating power for every square foot of space.

For example, a 1500-watt heater is suitable for a 150-square-foot room.

2. Type of Heater

There are several types of space heaters available, including:

• Fan-forced heaters
• Radiant heaters
• Convection heaters
• Ceramic heaters

Each type has its own advantages and disadvantages, so it’s important to choose the one that best suits your needs.

3. Safety Features

Safety should be a top priority when choosing a space heater. Look for models that have safety features such as:

• Overheating protection
• Tip-over switch
• Cool-touch exterior

4. Energy Efficiency

Space heaters can be a cost-effective way to heat a room, but only if they are energy-efficient. Look for models that have an Energy Star rating or other energy-saving features such as:

• Programmable thermostat

5. Noise Level

Some space heaters can be noisy, which can be a problem if you plan to use them in a bedroom or other quiet space. Look for models that have a low decibel rating or a “silent mode” option.

By considering these factors, you can choose the right space heater for your needs and avoid the frustration of constantly tripping circuit breakers.

How to Stop Space Heaters from Tripping Breakers

Proper placement.

One of the most common reasons for a space heater tripping the circuit breaker is an overloaded circuit. To avoid this, it is essential to place the space heater in a room with fewer appliances and electronics.

If possible, use a dedicated circuit for your space heater. This way, fewer appliances will share the circuit, reducing the chances of an overload.

Regular Maintenance

Regular maintenance of your space heater can help prevent it from tripping the circuit breaker. Make sure to clean the heater regularly, especially the heating elements.

Dust and debris can accumulate on the heating elements, causing them to overheat and trip the circuit breaker.

Additionally, check the power cord and plug for any damage or wear and tear. Replace them if necessary.

Using a Dedicated Circuit

Using a dedicated circuit for your space heater is an effective way to prevent it from tripping the circuit breaker. A dedicated circuit ensures that the space heater is the only appliance connected to the circuit.

This reduces the chances of an overload and prevents the circuit breaker from tripping. If you are not sure how to install a dedicated circuit, consult a licensed electrician.

By following these tips, you can prevent your space heater from tripping the circuit breaker and enjoy a warm and cozy environment in your home or office.

When to Consult a Professional

While troubleshooting a space heater that keeps tripping the breaker can be frustrating, there are times when it’s best to consult a professional. Here are a few situations when it’s recommended to call in an expert:

1. Continual Tripping

If the space heater continues to trip the breaker even after trying different outlets and reducing the heat setting, it’s time to call in a professional. This could indicate a more serious issue with the wiring or the circuit breaker itself.

2. Burning Smell

If the space heater emits a burning smell or smoke, immediately turn it off and unplug it. This could indicate a serious problem with the heater and should be looked at by a professional.

3. Strange Noises

If the space heater makes strange noises or rattles, it could indicate a loose part or debris inside the heater. This could cause damage to the heater and potentially start a fire. A professional should be consulted to assess and repair the issue.

4. Old or Faulty Wiring

If the wiring in the home is old or faulty, it could be causing the space heater to trip the breaker.

A professional electrician can assess the wiring and make any necessary repairs or upgrades to ensure the safe and proper functioning of the space heater.

In general, if the issue with the space heater tripping the breaker persists or seems to be getting worse, it’s best to consult a professional. They can assess the situation and provide a solution that will ensure the safety of the home and its occupants.

In conclusion, a space heater tripping the breaker is a common issue that can be resolved by troubleshooting the problem.

The main causes of a space heater tripping the breaker include circuit overload, a damaged wall outlet or power cord, a dirty air filter, a broken heating element, and a faulty thermostat.

To prevent space heaters from tripping breakers, it is crucial to understand the reasons behind this common issue.

Firstly, overloading the circuit by connecting too many appliances to the same circuit can cause the breaker to trip.

Secondly, using a damaged wall outlet or power cord can also cause the breaker to trip.

It is recommended to use a dedicated circuit for space heaters to avoid overloading the circuit. Additionally, inspecting the wall outlet and power cord for damage before use is essential to prevent accidents and ensure the proper functioning of the heater.

Lastly, regular maintenance of the space heater, such as cleaning the air filter and checking the heating element and thermostat, can prevent the heater from tripping the breaker.

By following these simple steps, users can enjoy the warmth of their space heaters without any interruptions or safety concerns.

Related Post: Space heater power strip myth.

About Eng. Nelson K.

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Help! My Furnace Circuit Breaker Keeps Tripping

Throughout the colder months, your furnace plays a crucial role in maintaining your family’s warmth and safety. However, when your furnace constantly shuts down due to a tripped circuit breaker, it can lead to an uncomfortably cold home and disrupt your family’s comfort. Keep reading as HVAC.com explains the common causes of a tripped furnace circuit breaker and how to address these situations.

Common Causes of a Furnace Breaker That Keeps Tripping

If your furnace breaker keeps tripping, several issues could be at play, including aging wires, an electrical overload, or short circuits. Some of the most common causes include:

Aging Wires

Old and deteriorated wires are not only a fire hazard, but they can also cause the circuit breaker for your furnace to trip. It’s crucial to have your furnace tuned up once a year in the fall to check the condition of all the electrical components and wiring.

Faulty Breaker

With regular maintenance and proper usage,  circuit breakers can last 30 to 40 years . However, circuit breakers can become faulty over time due to issues including manufacturing defects, consistently high electrical loads, and physical damage. If your HVAC technician or electrician determines the breaker is faulty, they can replace it with a new circuit for about $150 to $300. It’s also a good idea to check the overall condition of the circuit breaker panel to inspect for any potential issues.

Electrical Overload

An electrical overload can occur when the  furnace and other electrical devices draw too much current, causing the circuit to overload and trip the breaker. Furnaces should ideally have their own dedicated circuit to ensure safety and prevent overloads on the electrical system.

Short Circuits

If the heater trips the breaker after a few minutes, it could be short cycling. A short circuit happens when a hot wire contacts a neutral or ground wire, creating a surge of current that trips the breaker as a safety precaution. If this issue occurs in your home, contact a professional to check and repair damaged or exposed wiring.

Clogged Furnace Filter

A clogged and dirty furnace filter can lead to various problems, including tripping a circuit breaker. When the filter becomes clogged, it restricts airflow to your furnace, forcing the system to work harder and potentially overheat, which can result in a tripped circuit breaker.

Motor Issues

Worn-out wiring within the blower motor can cause an increase in electrical demands, overloads, arcing, and short circuits, leading to a furnace breaker that keeps tripping. Installing a new blower motor, including installation, costs about $550. Blocked vents can also raise the air pressure inside the HVAC system, increasing stress on the blower motor, and causing an overloaded circuit that trips frequently.

Leaky Air Ducts

It’s estimated that as much as 20 to 30% of conditioned air is lost through  leaky or poorly insulated air ducts . This causes your furnace to work harder and longer to reach the set temperature, raising your energy bills and potentially leading to a tripped breaker.

What To Do if Your Furnace Breaker Keeps Tripping?

If your furnace breaker keeps tripping, it’s important to take swift action. A tripped circuit breaker disrupts the electrical supply to the furnace, leading to a temporary loss of heating. This typically occurs as a safety mechanism to prevent electrical overloads or short circuits that could potentially lead to fires or damage to the furnace.

To resolve the issue, the circuit breaker must be manually reset by flipping it back to the “on” position. However, it’s crucial to determine the underlying cause of the tripped breaker, as it may be due to electrical overloads, faulty components, or other issues. If the problem is recurrent or the heater trips the breaker after a few minutes consistently,  contact a heating and cooling professional to identify and address the root cause to prevent further disruptions in your heating system.

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Water Heater Trips Breaker After a Few Minutes – Troubleshooting Guide

A tripped circuit breaker is not only frustrating but also, potentially, dangerous. 

Table of Contents

A water heater will trip the breaker, in case there is an issue with the actual unit or the breaker, or if there is something wrong with the wires and connections. When it comes to the heater, a faulty thermostat, a burnt-out heating element, and a leak might be the problem.

Why Is My Water Heater Tripping the Breaker?

There are three main reasons that can cause the breaker to trip:

• The actual water heater – a bad thermostat, a burnt-out heating element, or a wiring problem might be to blame.
• A malfunctioning breaker – the breaker could have simply gone bad over the years or it is of the wrong size.
• A short circuit – the wires or the connections might have been damaged.

Read: What Type Of Water Heater Is Most Energy Efficient?

Water Heater Trips Breaker After a Few Minutes

The thing that might make your breaker trip in a couple of minutes is a leak that allows the water to come in contact with any of the electrical components .

A burnt heating element might also end up exposing wires and other electrical components to the water.

The combination of water and electricity will cause a short circuit and the breaker will get tripped.

Water Heater Trips Breaker Immediately

The most common reason for a tripping breaker is a malfunctioning thermostat . When the element is improperly installed or faulty, the thermostat won’t be able to ‘communicate’ with your water heater.

As a result, the element will fail to regulate the electric flow to the actual heating elements and will instead start feeding it into the circuit breaker. This excessive power will cause the breaker to trip.

Read: Why Is Water Heater Making A Loud Vibrating Noise?

Tankless Water Heater Tripping Breaker

If the actual breaker and the wiring are fine, then the chances are high that your tankless water heater has a faulty heating element that is tripping the breaker.

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Also, you would want to make sure that the breaker is the right size for the unit . Tankless water heaters, for example, require 40-50 amps for each wire.

Bear in mind that such units need quite a lot of electricity when they’re on (some – up to 30.000 watts).

Rinnai Tankless Water Heater Tripping Breaker

Pay attention to the code that would get displayed in case the water heater’s breaker gets tripped.

In a Rinnai unit, code 12 might appear . This means that there has been either a flame failure or poor ground.

• Verify that there is a fuel supply.
• Check the power supply.
• Make sure that the unit has proper electrical ground.
• Check the flue for any kind of obstructions.
• Check the gas valve and fan motor wiring as they might be defective.

Water Heater Breaker Tripped and Won’t Reset

Remember that the breaker trips for a reason. If you have tried solving the problem, but nothing seems to work, then you should call a professional as soon as possible.

Repeatedly flipping the breaker can damage it and even cause an electrical hazard .

Read: Why Gas Water Heater Keeps Cycling ON And OFF?

What Trips the Reset Button on a Hot Water Heater?

The water heater’s reset button is a safety device that will turn the power to the unit off when the temperature of the water inside the heater exceeds 180 F . The button can also be used to turn the heater back on after a power outage, for example.

Here are a few other things that can trip the reset button, except for the extremely high water temperature.

• Loose wiring
• A faulty thermostat
• A grounding issue
• A broken reset button
• A worn-out heating element
• A faulty breaker

Hot Water Heater Keeps Tripping Reset Button

• If one of the thermostats had failed , it might not turn the heating elements off, which will trigger the reset button. In such a case, replacing the element might be the best decision.
• A damaged heating element might have a crack in its metal casing or one of the wires exposed to the water. Such elements will not react to the thermostat’s commands and will continue heating the water, even when it’s not needed (this will trip the reset button).
• At times, the actual reset button is the problem . The element can get worn out over time, and it might start to cut the power off to the unit even when the temperature of the water is low.
• Electrical problems include a bad breaker (it can wear out) and loose wiring . A button that keeps tripping in such a case is actually fulfilling its main function and is trying to keep you safe.

Read: Why Is Gas Water Heater Humming?

Is There a Breaker on a Hot Water Heater?

Just like the reset button, a circuit breaker is a safety device. It monitors the circuit and if something goes wrong (there is an overload, for example), the breaker gets tripped and shuts off the power to the appliance.

Any water heater that has an electrical connection needs a breaker . The majority of gas-fired units nowadays require a circuit breaker as well, as they have certain elements powered by electricity. 

Where Is the Water Heater Breaker Located?

A water heater requires its own circuit breaker which is usually located in your home’s main electrical panel .

You’ll find this panel in the garage, utility area, or storage closet in most cases. To switch the electric power to the water heater or to reset the breaker after it had tripped, you would have to flip the breaker that is labeled ‘water heater’.

Water Heater Circuit Breaker Size

According to the National Electrical Code , the circuit breaker should always be sized at 125% of the load . In a nutshell, it would be better to invest in a breaker with a higher capacity that the electrical load on the water heater for safety reasons. 

The size of the circuit breaker is determined by the wattage of the unit and the voltage.

For example, a 4.500-watt water heater with 240 volts is going to need a 25-amp breaker.

To get that, you should divide 4.500 by 240, multiply it by 1.25 (the 125% that we have mentioned earlier), and simply round the number.

By the way, the circuit should be a dedicated one. This means that it should be powering only the water heater and no other appliances .

What Size Wire Do I Need for a 40-Gallon Electric Water Heater?

The breaker size cannot be determined by the size of the tank (the gallons). It is going to depend on the unit’s wattage .

Can I Use a 40 Amp Breaker for Water Heater?

The absolute majority of electric water heaters are going to need a circuit breaker that’s between 20 and 30 amps .

If you want to switch your breaker to a 40-amp one, make sure to change the wire as well. Most water heaters are wired with 10 gauge wire, while a 40-amp breaker is going to need 8 gauge wire.

What Happens If You Oversize a Breaker?

An oversized breaker will not trip when it is supposed to. 

The breakers that are too large are not as ‘sensitive’. It might not turn the appliance off if a wire starts burning.

All in all, an oversized breaker is definitely a safety concern .

Read: Gas Water Heater Not Maintaining Temperature

How Do You Know When a Breaker Goes Bad?

The most common signs of a faulty circuit breaker include:

• A burning smell in the electrical panel – this means that the wires and insulation have overheated.
• The breaker keeps tripping – there might be quite a few different things that will make your breaker trip; however, a faulty circuit breaker is one of them.
• Physical damage – scorch marks and melted wires are tell-tale signs that the breaker is failing.
• Old age – even though some breakers will serve you for decades (modern ones can last for up to 20 years), the older the element gets, the more likely that it will fail soon.

How Do I Test a Water Heater Circuit Breaker?

To test your water heater circuit breaker, you are going to need electric safety gloves and a digital multimet er .

Before removing the breaker panel and probing the element with the multimeter, you have to make sure that all the electronics close to the working area have been unplugged . 

If you don’t feel comfortable working with electricity, please do leave the task to a professional.

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Dryer Keeps Tripping Breaker? 5 Essential Things To Check

If your dryer keeps tripping the breaker, a few things should be checked first. In most cases, it’s either a problem with the motor, heating element, a faulty wire or termination, worn-out breaker, or circuit overload. We’ll take a look at the most common (and not-so-common) causes of a dryer that keeps tripping the breaker .

Why Your Dryer Keeps Tripping The Breaker

Table of Contents

Finding the source of the problem will dictate the best way to repair it . But before we go too far, take a look at the circuit breaker in your home electrical panel. The breaker for the dryer should be a 30 amp, 2-pole breaker. That means it has two, or the equivalent of two, handles (usually tied together with a bracket or pin).

If your breaker is smaller than 30 amps, this could be your problem. However, DO NOT SWAP OUT THE BREAKER FOR A LARGER BREAKER unless you know for sure that your copper wire is 10-gauge or larger (8-gauge minimum for aluminum).

If you’re in doubt, have an electrician or other experienced individual take a look at it. The breaker is sized according to the wire size to keep it from melting. If you have a 30 amp breaker, great. You can check that off the list and move on.

The following are some common things that may cause your dryer to trip a breaker:

Circuit Breaker is Weak

Over time, circuit breakers can weaken, especially if they have tripped and been reset many times over the years. And, even if the amperage draw of the dryer is below the breaker’s original limit, it can cause it to trip if the breaker is getting tired.

However, a weak circuit breaker is not what I would call a common problem, except in older homes. Generally, breakers are quite reliable and have a good longevity to them.

But if your circuit breaker is 15 to 20 years old, it can weaken and start to trip occasionally. If the breaker is on the newer side, chances are good that your problem lies elsewhere.

One way to test is with a multimeter that incorporates an amp clamp or jaws. As the dryer runs, you can measure the amp draw on the circuit.

As mentioned above, a typical dryer is wired to a 30 amp breaker. So if you measure the amperage while the dryer runs, and it draws anywhere near 30 amps before the breaker trips, you can bet your problem is not the breaker.

In normal operation, a typical dryer will not exceed 21 amps. So if you get much more than that, it indicates an overcurrent problem at the dryer. Keep in mind that all dryers are different and I’m giving you general information here.

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If the current (amp) draw is staying under 21 or so, and the breaker trips, then it could very well be a weak breaker. But pay attention to the precise spot in the drying cycle the breaker trips .

If you repeat the test, and it happens again at the same spot, the issue could still be inside the dryer itself.

Replacing a breaker is a fairly easy task for someone with a little experience. In fact, chances are, you have another 30 amp, 2-pole breaker in the panel (for a water heater or heat pump, for example). You can borrow that temporarily and test the dryer circuit on it.

Be sure to turn off your panel main breaker before you work on swapping around breakers. And again, if you’re not confident in your own abilities, get help.

If you determine it’s not a breaker problem, put it back together and move on to the next section below.

Heating Element or Heating Element Assembly Failure

The heating element might have failed in your dryer .

If this occurs, it can short out against the housing, and trip the circuit breaker. A key indicator is when the breaker trips at the same point in the drying cycle each time.

To check the heating element you’ll use a multimeter and test each terminal for continuity to the case (metal body or frame of the dryer).

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If continuity from either terminal to the case is present, the heating element has probably shorted out and needs to be replaced.

However, it’s also possible that the heating element assembly is at fault. You’ll check it similarly to the heating element, using a multimeter to test the terminals for continuity.

If it’s shorted out, you’ll have to replace the assembly .

Note: In most modern dryers, the heating element and assembly are packaged together so that you cannot replace them independently.

Internal Short

If the problem isn’t with the circuit breaker or a heating element failure, it might be an internal short that’s causing it to trip. Several issues can cause this including:

• A bad door switch
• Defective Timer
• Burnt motor windings
• The on/off switch isn’t operating correctly

To check each of these areas, you’ll use the ohmmeter setting of your multimeter . This will help determine if there is a short in one of the internal components of the dryer.

If so, you can replace or repair them, and this should likely resolve the tripping of the circuit breaker while the dryer is operating.

Terminal Block

Power cords on electrical dryers attach at a terminal block. If there are loose wires on the terminal block this can cause them to arc and ultimately disrupt the power source.

This can cause the wire to short against nearby grounded metal, and causes the dryer breaker to trip. Although not common, I have witnessed it myself.

What’s the solution? Check the terminal block. If wires are loose, tighten them. Screws or nuts should be nice and snug. Don’t overtighten.

If you notice signs of arcing ( soot and discolored or melted portions), you might have to replace the terminal block.

Pigtail Connection and Outlet

Having tight connections doesn’t help us if the wires are connected to the wrong terminals. So take a minute to make sure the pigtail is attached correctly at the terminal block. Make certain that all four (three in some cases) conductors are connected to their proper terminals.

Most dryers have color-coded terminals: Black, Red, White, & Green. Match color for color on the pigtail. Typically, the green conductor on the pigtail will attach to a green screw mounted to the sheet metal frame of the dryer.

Once you’ve verified the proper connections, test the voltage of the wall outlet. this is easy to do and will rule out the possibility of a circuit issue.

With your multimeter set to AC VOLTS , you should get the following readings:

• Black to Red: +/-240 volts
• Black to White: +/-120 volts
• Black to Green: +/-120 volts
• Red to White: +/-120 volts
• Red to Green: +/-120 volts
• White to Green: 0 volts

Ideally, voltage readings should fall within 10% below, and 5% above the numbers above. In other words, between 218 and 252 volts , or between 109 and 126 volts .

If your voltages are within range, great. Even if they’re slightly outside the range, it’s still okay. Your tripping problem lies elsewhere.

Drive Motor

If the drive motor has failed it will short out internally. This can cause the dryer to trip the circuit breaker.

Like other parts, you’ll want to use a multimeter to check if there’s continuity in the drive motor.

If the windings are shorted out, you’ll need to replace motor. See the video below for tips on testing and replacement.

Dryer Keeps Tripping Breaker after 10 Minutes

Weak circuit breaker.

In many instances, this is caused by a weak breaker. Your breaker should have an amp rating of 30, but your dryer likely only draws a maximum of 21 amps. To test the load draw of your dryer, you’ll use a clamp or fork-style amperage meter around the wire (while the dryer is running).

This will require removing the electrical panel cover or the dryer terminal cover. This test is done while the circuit is live, so be sure you are competent with basic electrical knowledge before attempting.

If you measure less than 30 amps, yet the breaker trips, the breaker is weak or defective and needs to be replaced. If the amp draw goes above 30 before the breaker trips, the problem is at the dryer, and the breaker is fine.

Heating Element Check

A second problem might be with the heating element if your dryer trips after 10 minutes of operation. This is different from the short-circuited element discussed above.

In this case, it is not due to direct contact between energized and grounded parts of the system. Rather, there is an improper resistance present that is causing the delayed breaker trip.

To test the heating element, remove both lines so that it has no reference to any part of the circuit. Using an ohm meter, check the resistance reading.

This number should fall between 7.8 to 11.8 ohms of resistance.

If the reading isn’t between these numbers, you might have a faulty heating element. If this is the case, replacing it should resolve the problem.

Too large of Laundry Load (Dryer Keeps Tripping Breaker)

Usually, if you overload your dryer with too much clothing (or blankets, or curtains, or… ), the built-in overheat protection device will shut your dryer off before it trips your breaker. However, if that overheat sensor fails to work properly, the dryer could potentially overheat and trip the breaker.

This is rare and I have never personally witnessed such an occurrence. But it is worth noting, just in case you happen to relate to that statistic.

Read this article on Why A Dryer is Overheating

The above steps should help you figure out why your dryer keeps tripping the breaker. Taking a logical, patient approach will almost always yield favorable results.

Remember to always consult the manual for your specific dryer model. Parts and their locations vary from model to model.

Related: Dryer Moisture sensor Problems

Reader Comments (9)

BOUGHT A BRAND NEW WASHER AND DRYER FOR MY BRANDE NEW HOME GOT IT DELIVERED AND SET UP AND THE DRYER TRIPS MY BREAKER MATTER OF FACT IT TRIPPS INSTANTLY LENNAR HOME IS TRYING TO BLAME CONNS AND I TOLD THEM NO ITS THE LENNAR ELECTICIANS THAT PUT IN A SMALL BREAKER BOX THAT DOESNT HOLD ENOUGHT AMPS FOR A DRYER THEY GIVING ME THE RUN AROUND NOT TRYING TO TAKE THE BLAME BUT LENNAR IS A DAMN LIE NEVER PURCHASE A HOME FROM LENNAR HORRIBLE EXPERIENCE GETTING THE HOME AND STILL AFTER GETTING THE HOME FRUSTATED!!!!!!1

I have a whirlpool and it keeps tripping when I open the door to the dryer.

When you try to open the door? When the dryer is running?

I have a whirlpool electric dryer. Breaker trips after running 5-10 min. It trips on heater leg of 110. Motor will run thru complete cycle with that wire off breaker. Have replaced heating element. Ran several cycles with dryer empty and everything seemed ok. Put in clothes and it tripped breaker after 10 min. Any ideas? Thank you.

Weak breaker

I have a problem of a resin dryer that keeps on striping due overheating while the parameters are still within specifications .

Bought a new Speed Queen washer and dryer GFI seems to trip after dryer cycle. Receptacle worked fine in front loader GE I replaced. Any thoughts

One of the reasons why GFCI tripped is when there is a spark developed in the circuit. Who knows, if it’s relay contacts or motor’s brushes creating a momentary spark. IDK

• Pingback: What Cause Burning Smell From The Dryer? - DIY Appliance Repairs, Home Repair Tips and Tricks

Comments are closed.

Why My Traeger Keeps Tripping Breaker [4 Easy Fixes]

Every time you plug your Trager in and try to start it, the Traeger keeps tripping breaker. When you plug your Traeger, you can find the light comes on in the temp gauge. And it immediately trips the GFI.

You tried two different outlets on different circuits, but it did the same thing (trips the GFI). So, you go nuts and ask: why does my Traeger smoker keep tripping the breaker? 

Faulty mechanical components or damaged wires are the culprits to let your Traeger trip the breaker continuously and thus your Traeger keeps shutting off finally . A defective fan, auger motor, and hotrod can also be the culprit behind this issue. To fix this issue, we compiled this Traeger Grill Troubleshooting Guide.

Following the step-by-step guide we mentioned below, you can solve the Traeger Grill problems with ease. 

Table of Contents

Why my traeger keeps tripping breaker [4 reasons to fix], 1. a worn out power cord, 2. faulty induction fan, 3. a defective auger motor, 4. faulty hotrod, where is the traeger d2 controller fuse location, why does my smoker keep blowing a fuse, why does my traeger keep shutting off, why is my traeger getting too hot, what temperature is high on a traeger.

Here are some culprits that may cause your Traeger to trip the breaker frequently. 

The first culprit that may cause your GFCI or breaker to trip continually is the damaged power cord. If you plug the power cord into a defective outlet, it may damage the power cord or trip the breaker.

Sometimes rats can cut the power cord, which may cause a current leakage to the ground or faulty ground. And when you plug this damaged power cord, it will trip the breaker or GFCI. 

To solve this issue, inspect the power cord for visual damage. Then, check out the condition of the electric outlet. Never plug your Traeger in the outlet which is used to power other electric appliances.

It may wear out the power cord. Now, follow the below steps to check if the power cord is ok or not.

• Make sure you turn the Traeger off and unplug it from the power.
• Use a screwdriver to remove the two screws from the mounting onto the hopper. Now, clip the zip ties holding all the wires bunched up and remove the controller.
• Locate the fuse of your controller. There are two different rectangular boxes- a green or grey box with a lid and a cylindrical use box. You can find them on the bottom left hand of the controller. Open the black tube with a screw-on cap to get the fuse. If it looks black, you need to replace it.
• Disconnect every wire from their Molex connectors without the black one. 
• Plug your grill into an outlet and turn it on.
• You can find a red light on your controller, which indicates the grill will turn on. If the fuse pops out and the red light will not come on, understand there is a problem with your power cord. 

If you find the power cord is okay and it doesn’t pop the fuse, it may be the problem with the Traeger Induction fan. To figure out whether it’s a problem with the fan or not, follow these troubleshooting steps.

• Turn off the grill and remove it from the electric outlet. 
• Leave all the wires disconnected from their Molex connectors. But make sure you don’t detach the orange wire. 
• Plug the unit into an electric outlet and turn on your Traeger grill. 
• You can hear the sound of the fan running. 
• If it trips the fuse, we bet the fan wires are faulty, or the fan is defective. 

A faulty auger motor can also be the culprit that may cause the breaker to trip frequently. Follow the below steps to see whether your auger motor functions properly or not.

• Ensure you turn off your Traeger grill and unplug it.
• Leave every wire disconnected from their Molex connectors- except the black and red wires. 
• Plug your unit into an electric outlet and turn on your Traeger.
• If it trips the fuse or breaker, you must replace the auger motor. 

A defective hotrod may be the caveat that will cause your breaker to trip frequently. So, head over to the following steps to test the Traeger hotrod.

• Turn off your grill and detach the unit from the electric outlet.
• Keep the purple and black wires attached to the Molex connectors. Make sure you leave other wires, except these two, disconnected from their Molex connectors.
• Now, back the unit and attach it to the electric outlet. And turn the grill on.
• If the fuse pops out or trips the breaker, the hotrod is defective. So, replace it to fix the issue. You can check out this tutorial from Traeger to learn how to replace the hotrod. 

You can find the Traeger fuse on the rear of the controller board. Indeed, the fuse can be found on the back of the controller. 

A blown fuse equals an overloaded amp. If the fuse blows out when starting your smoker , it means the hotrod draws more amps than required. And it causes the fuse to blow out. We recommend you replace the hotrod to solve this smoker issue. 

A defective power cord, damaged wire connection, and bad thermostat are some culprits that are the reasons behind your Traeger not igniting or turning it off frequently. Fix these issues to operate your smoker smoothly. 

The reasons behind the temperature of your Traeger getting high unusually are the firepot of your Traeger filled with ash and wood dust. So, keep the firepot clean by removing the ash and wood dust. 

450F is the highest temperature on a Traeger. However, the cooking temperature may vary due to the pellet quality, dryness, and ambient temperature. Typically, you will get 350F-450F by setting the Traeger on High. 

We hope you get the answer to your question- Why does your Traeger keep tripping the breaker?

A worn-out power cord, defective induction fan, and faulty hotrod are responsible for this Traeger issue. But the main culprit that often causes the breaker to trip is the faulty hotrod.

A defective hotrod draws more amp than required which blows out the breaker. So, replace it to stop your Traeger from tripping the breaker. 

If any of the troubleshooting steps we mentioned above can’t fix your grill issue, call Traeger customer service for help. 

About William

William is the founder of Fireplacehubs.com. He has real life practical skills in fixing smoker & heating appliance issues. He loves to share his knowledge & helps others in fixing their appliances & saving their money. William firmly believes that anyone can repair his or her unit with the correct guidance & knowledge. See more at about us .

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