Why Does My Breaker Keep Tripping?

A breaker that keeps tripping is doing its job: it cuts power to a circuit that is drawing too much current or has a fault. The most common causes are an overloaded circuit, a short circuit, a ground fault and a worn-out breaker. Resetting it once is fine. If it trips again right away, leave it off and have an electrician look.

First, is anything sparking, smoking or burning?

Check this before you touch the panel. If you see sparks, smoke or flames, get everyone out of the house and call 911 once you are outside. Don't go back in for anything until the fire department says it is safe (Ready.gov).

If there is no fire but an outlet, switch or the panel smells hot, burnt or like melting plastic, This Old House says to turn off the power at the breaker right away and call an electrician (This Old House). Leave that breaker off until someone has checked it.

Stop and get help instead of troubleshooting if you notice any of these:

• The breaker trips again the moment you reset it, even with everything unplugged. That pattern often points to a short circuit or ground fault.
• A pop, crackle or spark when it trips, or scorch marks on an outlet, a switch or the breaker itself.
• Water on the floor near the panel, or on outlets, cords or appliances on that circuit. Stay clear and don't touch anything electrical while it is wet.
• A tingling feeling when you touch an appliance. The NFPA lists this as a reason to call an electrician (NFPA).
• A breaker that feels hot to the touch.

Never remove the panel cover, and never hold, tape or wedge a breaker in the on position. The breaker is the part that is keeping the circuit from overheating.

What does it mean when a breaker trips?

A tripped breaker means a safety switch has shut off one circuit in your home. Each breaker in your panel controls one circuit, which might feed a few outlets, a room's lights or one big appliance. When the breaker senses a problem, its switch flips by itself and power to that circuit stops (Bob Vila).

A tripped breaker doesn't always look fully off. Bob Vila notes that a tripped breaker often sits in the middle, between on and off (Bob Vila). If one handle doesn't line up with the others, that is likely the one.

Breakers trip for a reason. The trip itself is good news: it means the breaker noticed a problem and stopped it. The question is what the problem is, and whether it will keep happening.

Why does my breaker keep tripping?

Common causes include the ones below, listed roughly from most to least common. A breaker that trips once in a while after you run too many things at once is usually an overload. A breaker that trips constantly, or right after a reset, is more likely a fault in the wiring, an outlet or an appliance.

1. Too much running on one circuit (overload)

An overloaded circuit is one of the most common reasons a breaker trips (Bob Vila). It happens when the things plugged into one circuit pull more current than the wiring is meant to carry. The breaker shuts it off before the wires overheat.

Likely signs of an overload:

• It trips when a space heater, hair dryer, microwave, toaster oven or window AC is running.
• It happens more in winter or summer, when heaters or fans are on.
• Lights on the same circuit dim when something big turns on.
• It stops tripping when you unplug a few things.

Bob Vila also lists buzzing outlets, slow-charging devices and scorch marks as overload warning signs. Scorch marks or buzzing are a reason to stop using the outlet and call an electrician, not something to manage by unplugging.

The NFPA recommends plugging only one heat-producing appliance, such as a space heater, coffee maker or toaster, into an outlet at a time. It also says major appliances like refrigerators, washers, dryers, microwaves and air conditioners should plug straight into a wall outlet, not into an extension cord or power strip (NFPA).

2. A short circuit

A short circuit happens when two wires that shouldn't touch make contact, causing a sudden surge of current (Bob Vila). It can happen inside an outlet, a switch, a light fixture or an appliance cord, often because of loose wiring, worn insulation or chewed wires.

Likely signs of a short:

• The breaker trips the instant you reset it or turn something on.
• You hear a pop or see a spark.
• An outlet or switch looks discolored, or you smell burning.

If you think there is a short, stop using that outlet or appliance until it has been checked. This is not one to keep resetting.

3. A ground fault

A ground fault is when electricity leaks to the ground instead of following its normal path. It often comes from damaged wiring or water getting into an outlet or switch box (Bob Vila). Ground faults carry a shock risk, which is why kitchens, bathrooms, garages, basements and outdoor outlets use GFCI protection.

Likely signs of a ground fault:

• Tripping that happens after rain, or when a sprinkler hits an outdoor outlet.
• A GFCI outlet on the same circuit keeps tripping too.
• The problem started after a leak or water damage.

If water is involved, stay away from the wet area and the outlets in it. Our guide to a GFCI outlet that won't reset covers this in more detail.

4. A worn-out or failing breaker

Breakers can wear out. An old, damaged or poorly installed breaker may trip for no clear reason, or may fail to trip when it should (Bob Vila). Bob Vila lists these signs of a failing breaker: it feels hot, trips often, won't reset, shows scorch marks, or hasn't been looked at in more than 10 years.

A worn breaker is a job for an electrician. Replacing one means working inside the panel, which stays live even with the main breaker off.

5. An arc-fault breaker doing its job (AFCI)

Many newer homes have arc-fault circuit interrupters, or AFCIs. These special breakers watch for arcing, the small sparks that happen when a connection is loose or a wire is damaged. The CPSC says ordinary breakers don't respond to early arcing, and by the time they trip, a fire may already have started. AFCIs are designed to catch it sooner (CPSC).

So if an AFCI breaker keeps tripping, take it seriously. Bob Vila says repeated AFCI trips point to a real problem worth an electrician's visit (Bob Vila). Sometimes the cause is a loose connection or a damaged cord. Sometimes it is a device that the breaker reads as arcing. Either way, a pro can test the circuit and tell the difference.

6. A problem in the panel itself

Less often, repeat tripping comes from the panel, not the circuit. Fixr notes that certain older panels, including Federal Pacific panels installed between 1950 and 1980 and some Stab-Lok models, are known fire risks, and that burn marks on a panel mean a serious malfunction (Fixr). You don't need to open anything to spot these. The brand name is usually printed on the panel door or the label inside it.

If several breakers trip at random, or you also have flickering lights across the house, a panel or service problem becomes more likely.

Does it matter when the breaker trips?

Yes. When it trips is one of the best clues you can give an electrician. Write it down.

• When one appliance runs: likely an overload, or a problem with that appliance.
• When several things run at once: likely an overload. Spreading the load out may help.
• Right after you reset it, with nothing plugged in: likely a short circuit or ground fault in the wiring. Leave it off.
• At random, with no pattern: possibly a worn breaker, a loose connection or an AFCI picking up arcing.
• After rain or watering: possibly a ground fault from moisture in an outdoor outlet or box.
• Along with other symptoms like warm outlets, buzzing or dimming lights: the circuit needs a closer look soon.

Florida Power & Light suggests looking for patterns too. Does it happen at the same time of day? With the same appliance? Did you add a new appliance recently (FPL)? These details save time on the visit.

How do I safely reset a tripped breaker?

You can safely reset a breaker once, as long as nothing is sparking, smoking or smelling burnt and the floor is dry. Here is how:

1. Turn off and unplug things on that circuit. Switch off lights and unplug devices in the rooms that lost power.
2. Open the panel door (the small door on the front, not the cover behind it) and find the breaker that is off or sitting in the middle.
3. Push the handle firmly all the way to off, then back to on. A tripped breaker usually has to go fully off before it will reset (Bob Vila).
4. Wait a minute. If it stays on, start plugging things back in one at a time.
5. If it trips again right away, stop. Leave it off and call an electrician.

Bob Vila says one reset is reasonable, but resetting again and again is dangerous because it can cause an arc flash, a small electrical explosion (Bob Vila). This Old House also lists resetting the same breaker over and over as a sign of a bigger issue (This Old House).

What can I safely check myself?

You can learn a lot without touching any wiring. These checks only involve unplugging things, flipping switches and paying attention.

1. Look and smell first. Check outlets and switches on the circuit for scorch marks, cracks or melted plastic. If anything looks or smells burnt, leave the breaker off and call an electrician.
2. Do a load test. Bob Vila suggests turning off switches and unplugging devices on the circuit, then turning things back on one at a time, waiting a few minutes between each (Bob Vila). If it trips when a certain mix of things is running, it is likely an overload.
3. Test a suspect appliance somewhere else. If one appliance seems to trip it, Bob Vila suggests plugging it into an outlet in another room. If that room's breaker trips too, the appliance itself likely has a short. Only try this if the cord and plug look undamaged and nothing smells burnt. If it trips, stop using that appliance.
4. Spread out the load. Move a space heater, microwave or hair dryer to an outlet on a different circuit. Keep heat-producing appliances off extension cords and power strips.
5. Check for water. Look at outdoor outlets and any outlets near sinks. If anything is wet, stay away from it and let a pro handle it.
6. Write down what you see. Which breaker, what was running, what time, whether it popped. This helps a pro find the problem faster.

What not to do:

• Don't keep resetting a breaker that trips right away.
• Don't remove the panel cover or try to tighten anything inside the panel.
• Don't replace the breaker with a bigger one. The breaker size is matched to the wire, and a larger breaker can let the wire overheat.
• Don't run long-term on extension cords. The NFPA says they are meant for temporary use and suggests having an electrician add outlets instead (NFPA).

When should I call an electrician?

Call an electrician if the breaker trips again after one careful reset, or if you see any sign of heat or damage. The NFPA says to call a qualified electrician if you have frequent problems with tripping breakers, discolored or warm outlets, a burning or rubbery smell, flickering or dimming lights, or sparks from an outlet (NFPA).

Call sooner rather than later if:

• It trips right after a reset, even with nothing plugged in.
• It trips often and you can't link it to one appliance.
• The breaker is hot, won't reset or has scorch marks.
• You have warm, buzzing or discolored outlets on the same circuit. See our guide to a warm or buzzing outlet.
• Your home is older, or has a panel brand known for problems.
• An AFCI or GFCI breaker keeps tripping.

If you'd like to sort out the likely cause before you call, you can check my electrical. It asks a few questions and shows likely causes, typical costs and what to ask a local company.

What will an electrician check?

A pro will usually start by asking what you noticed, then test the circuit. Expect them to check:

• What is on the circuit, and whether the load is more than it can carry.
• Each outlet, switch and fixture on the circuit for loose, burned or damaged connections.
• The circuit's wiring for a short or ground fault, including outdoor outlets and anything near water.
• The breaker itself, its condition and how it connects to the panel.
• The panel, including its age, brand and any signs of heat or burning.
• Your appliances, if the trips follow one of them.

Depending on what they find, the fix might be as small as moving a heater, or as large as adding a dedicated circuit or replacing the panel. A pro can tell you which applies and why.

How much does it cost to fix a breaker that keeps tripping?

As of 2026, these are national ranges from cost guides. Your price will depend on the cause, your area and how much work the fix takes.

• Electrician visit: typically $176 to $327 per visit (Fixr).
• Urgent night or weekend call: adds at least $100 to $200 to the standard fee (This Old House).
• Fixing a circuit breaker that keeps tripping: $200 to $2,000, depending on the cause (Fixr).
• Repairing a short circuit at an outlet: $75 to $200 (Fixr).
• Replacing a circuit breaker: $150 to $250 (Fixr).
• Adding a dedicated circuit for a big appliance: $400 to $2,000 (Fixr).
• Replacing the electrical panel: $1,500 to $4,500, with a national average of $3,000 (Fixr).
• Permit for panel work: $50 to $300 or more (Fixr).

What changes the price?

• The cause. An overload that is solved by moving an appliance costs only the visit. A short hidden in a wall takes longer to find and fix.
• Access. Wiring behind finished walls or in tight attics takes more time.
• Timing. Nights, weekends and holidays usually cost more.
• Permits. Panel work and new circuits usually need a permit and an inspection.
• Your home's age. Older wiring and panels may need updating to meet current code once work starts.

Questions to ask the electrician

Good questions help you understand the fix and compare quotes fairly:

• What do you think is causing it, and how did you confirm it?
• Is the circuit overloaded, and would a new circuit fix it?
• Is the breaker itself worn out, or is it tripping for a real fault?
• Is there a service-call fee, and does it go toward the repair?
• Will this need a permit?
• Can I get the price in writing before you start?
• Is your work guaranteed, and for how long?
• Are you licensed and insured for this work in my area?

How can I keep my breaker from tripping again?

Once the cause is fixed, a few habits help:

• Give space heaters and other heat-producing appliances their own outlet, and plug them straight into the wall.
• Don't run several high-power kitchen appliances on the same outlet at once.
• Keep cords out from under rugs and out of doorways. The NFPA warns that heat can build up when a cord is placed under a carpet.
• Test AFCI and GFCI devices once a month, as the NFPA recommends.
• If you are adding a big appliance, ask whether it needs its own circuit before you plug it in.
• If part of your house loses power at once, rather than one circuit, see our guide to half your house having no power.

A breaker that trips once and never again is rarely a worry. A breaker that keeps tripping is telling you something, and it is worth finding out what. When you are ready, you can check my electrical to see the likely causes and what to ask a local pro.