Circuit Breaker Keeps Tripping?

A circuit breaker that trips once is doing its job — protecting you from an overload. A breaker that trips repeatedly is telling you something is wrong. The cause is usually an overloaded circuit, but it can also indicate a short circuit or ground fault that needs professional attention.

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Key takeaway: A breaker that trips once is doing its job. One that trips repeatedly usually means an overloaded circuit. Unplug everything, reset, then reconnect devices one at a time to find the problem.

What's Happening

Breakers trip when the current flowing through the circuit exceeds the breaker's rating (typically 15 or 20 amps for household circuits). This happens when too many devices draw power simultaneously, when an appliance has a short circuit, or when wiring is damaged. Repeated tripping without an obvious overload may indicate a serious wiring issue.

What to Check

Identify which breaker tripped. Open your electrical panel. A tripped breaker will be in the middle position — not fully ON or OFF. It may also have a red or orange indicator visible.
Unplug everything on that circuit. Before resetting, unplug all devices and turn off all lights on the affected circuit. This rules out a device-caused overload.
Reset the breaker. Push the breaker firmly to the OFF position first, then flip it back to ON. You should hear it click into place.
Plug devices back in one at a time. Reconnect devices gradually. If the breaker trips when you plug in a specific appliance, that device likely has a short circuit or is drawing too much power. Stop using that device.
Check for overloaded circuits. Space heaters, hair dryers, window AC units, and microwaves are high-draw appliances. Two of these on the same circuit will often trip a 15-amp breaker. Move one to a different outlet on a different circuit.

DIY Cost

Pro Cost

$150–400

Call an Electrician If

The breaker trips immediately after resetting, even with nothing plugged in — this likely indicates a short circuit or ground fault in the wiring itself, which is a fire hazard.
The breaker won't stay in the ON position at all — a "hard trip" that won't reset is dangerous and needs immediate professional attention.
You smell burning near the panel or outlets on that circuit.
The breaker feels hot to the touch.
Multiple breakers are tripping simultaneously.
The breaker has tripped more than 3 times in a week without an obvious overload.

Frequently Asked Questions

Can a tripping breaker cause a fire?

The breaker tripping is preventing a fire. But repeatedly resetting without fixing the cause can overheat wiring. Never replace a breaker with a higher-amp one.

How many things can I plug into one circuit?

A 15-amp circuit handles about 1,800 watts. High-draw appliances like space heaters (1,500W) and hair dryers (1,500W) can max out a circuit alone.

Should I worry if my breaker trips occasionally?

Tripping during high usage (microwave + hair dryer) is normal overload protection. Tripping with normal usage or immediately after resetting needs investigation.

Breaker Trips Even With Nothing Plugged In?

Record a video describing what's on the circuit and what happens when it trips. Toolbox tells you whether it's an overload you can manage or a wiring fault that needs an electrician.

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