Never replace a breaker with a larger one to stop tripping. The breaker is sized to protect the wire. A larger breaker lets the wire overheat inside your walls.
What usually causes this?
Breakers trip for a reason. Matching the timing of the trip to what was happening is the fastest way to narrow down the cause.
Overloaded circuit
Space heaters, hair dryers, microwaves, window AC units and toaster ovens draw a lot of current. Several on one circuit can exceed its rating. Trips usually happen a few seconds to minutes after the load starts.
Short circuit
A hot conductor touching neutral or ground causes a large current spike and an instant trip. Causes include damaged cords, loose wires in a box, or cable damaged by nails or rodents.
Ground fault
Current leaking to ground — often through moisture — trips GFCI protection and can trip standard breakers. Outdoor, bathroom and kitchen circuits are common culprits.
Arc fault
AFCI breakers trip when they detect arcing from loose connections, damaged cords or failing devices. Bedroom circuits in newer homes often have AFCI protection.
Worn or failing breaker
Breakers can weaken after many trips or lose their grip on the panel's bus bar, tripping below their rating or running warm.
What you can safely check
These details help an electrician find the cause faster. Look and listen only — do not remove covers or touch wiring.
- Which breaker tripped and what rooms or outlets lost power
- What was running when it tripped
- Whether it trips immediately, after a delay or only at certain times
- Whether the breaker or panel cover feels warm (touch the cover only, never inside)
- Whether a specific appliance causes the trip on a different circuit too
Warning signs that need a professional
- Breaker trips instantly every time it's reset
- Burning smell, scorch marks or buzzing at the panel
- Outlets or switches on the circuit are warm or discolored
- Several breakers tripping together
- Tripping began after new wiring or a storm
When should you call an electrician?
Call an electrician if the breaker trips with little or nothing running, trips immediately on reset, or trips repeatedly even after you've moved heavy appliances to other circuits. These patterns point to a wiring fault or a failing breaker that needs testing.
If the tripping is clearly caused by overload — for example, the microwave and toaster on the same kitchen circuit — an electrician can add a dedicated circuit so you don't have to juggle appliances.
Services that fix this problem
Circuit Breaker Repair
Diagnosing breakers that trip, won't reset, buzz or feel warm — and fixing the circuit problem behind them.
Circuit Breaker Replacement
Replacing worn, damaged or incompatible breakers — including AFCI and GFCI breakers — with correctly rated parts.
Electrical Troubleshooting
Systematic testing to find the cause of intermittent power loss, tripping, flickering and other electrical faults that aren't obvious.
Electrical Panel Upgrade
Increasing your home's electrical capacity — typically 100A to 200A — for EV chargers, heat pumps, additions and modern loads.
Related electrical problems
Frequently asked questions
Reset it once after removing the likely load. If it trips again, stop. Repeated resets can feed a fault and damage wiring.
Background loads like refrigerators, HVAC or dehumidifiers may be cycling on, or an AFCI breaker may be detecting arcing. A loose connection that heats up over time can also cause delayed trips.
Yes, breakers do wear out. But a tripping breaker is more often responding to a real problem, so testing the circuit comes first.
Moisture in an outdoor outlet, light or cable can create a ground fault. Have exterior connections checked and sealed.