Breaker Keeps Tripping? 3 Causes, Replacement $150 to $250

Why does my breaker keep tripping

Angi's electricians list five causes:

• Overload. The most common cause: more devices running on the circuit than it is rated for. High-wattage appliances on one circuit are the usual culprit.
• Short circuit. A hot wire touches a neutral. Signs include melted insulation or a burning smell.
• Ground fault. Current leaks to ground. This is common in damp areas.
• Outdated wiring. Mainly in homes built before 1960.
• A faulty breaker or panel. Breakers wear out, and some panel brands have a poor record.

Some breakers are built to trip on less. A GFCI cuts power when the current going out and coming back differ by even a slight amount, and an AFCI trips on arcing. ESFI says arcing faults cause more than 30,000 home fires a year, and CPSC estimates AFCIs could prevent more than half of them. When a GFCI or AFCI breaker trips, it has usually found a fault somewhere on the circuit.

ESFI's overload warning signs: flickering or dimming lights, frequent trips, warm or discolored wall plates, crackling, sizzling or buzzing from outlets, a burning odor, and mild shocks.

How to reset a breaker: do this now

To reset a breaker, unplug everything on the circuit, push the handle fully to OFF and then back to ON, one time only; Bob Vila warns that resetting it again and again risks an arc flash. Do not touch the panel at all if it is hot, wet, buzzing or smells of burning.

1. Find the tripped breaker in the panel. Its handle sits in the middle or the off position.
2. Unplug or switch off everything on that circuit.
3. Reset it one time: push the handle fully off, then back on. Bob Vila warns that resetting over and over risks an arc flash.
4. Plug things back in one at a time. If it trips when one appliance comes on, plug that appliance into a circuit in another room. If that breaker trips too, the appliance likely has a short, per Bob Vila.
5. If the cause was overload, move a high-wattage appliance to a different circuit, as Angi advises.

Is it an emergency? When to stop and call an electrician

It is an emergency when the breaker or panel is hot, scorched, buzzing or smells of burning: with smoke or a strong burning smell, leave and call 911. A breaker that trips again after one reset with everything unplugged is not an emergency, but it needs an electrician, not more resets.

• It trips again after one reset with everything unplugged.
• It will not reset, or the handle feels loose.
• The breaker or panel is hot, scorched, buzzing, or smells of burning. With smoke or a strong burning smell, leave and call 911.
• You see melted insulation, or suspect a short or ground fault.
• The house is old, the wiring is original, or the panel is a Federal Pacific or Zinsco.

A trip with heat, smell or sound is a same-night call; the emergency electrician page covers after-hours rates and who to call first.

Circuit breaker replacement cost

HomeGuide's circuit breaker guide is dated June 2024 though titled 2026; This Old House's figure is from June 2026.

The breaker itself is cheap; most of the bill is the visit and the diagnosis. When the circuit is overloaded rather than faulty, the fix is usually a new dedicated circuit for the heavy load, at $250 to $900 in HomeGuide's guide. For other common repair prices, see electrical repair costs.

Outlet not working? Check these first

1. Look for a tripped GFCI outlet in the same room or nearby. ESFI says the electrical code requires GFCIs in kitchens, bathrooms, garages and outdoors. One GFCI can also protect other outlets on the same circuit, so press its reset button.
2. Check the panel for a tripped breaker.
3. Plug in a lamp you know works, to rule out the device.
4. If the outlet is warm, discolored, buzzing or smells burnt, stop using it and call.

A reset costs nothing. If the outlet still does not work, HomeGuide prices outlet repair or replacement at $80 to $200. Angi puts the national average at $130, a GFCI outlet repair at $100 to $300, and an outlet with burn marks or a burning smell at $120 to $400.

Half the house without power

If the breakers are all on and about half the house is still dead, the cause may be outside. Lee Company, a home services contractor, explains that power arrives on two legs, and losing one at the street leaves about half the house without power: the oven will not heat and the central air will not start. Call the utility first if neighbors are affected.

If lights dim or flash when big appliances start, that can mean a loose neutral, which Lee Company says is not a DIY fix. Call an electrician, and treat burning smells, scorching or buzzing as urgent.

When the panel is the problem

A breaker that trips for no reason, or never trips at all, can point to the panel. Federal Pacific Stab-Lok and Zinsco panels have a record of breakers that fail to trip, and the usual advice is to replace the panel rather than the breakers; electrical panel upgrade cost covers both brands and the prices. A panel that is simply full is also a reason to upgrade before adding an EV charger.

If the breaker that trips feeds a rooftop solar inverter, the cause may be in the solar equipment; see solar technician or electrician. Calls to the electrician line go to an independent company that serves your area and takes this kind of job; how calls work explains the rest.

If a single outlet is dead but the breaker is on, the cause is often a tripped GFCI elsewhere on the circuit; GFCI outlets and outlets not working walks through it.

Think the breaker itself has failed, not the circuit? See how to tell if a circuit breaker is bad for the signs and what replacement costs.