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Fix a breaker that trips

We'll confirm overload vs short circuit, help you isolate the cause by unplugging devices, or tell you when to call an electrician.

Troubleshooting · Home maintenance
10–30 min
What you'll need
  • Flashlight (to see the panel label and tripped breaker)
  • No tools required for basic reset and unplugging
Step 1 of 5

Quick triage — pick your path

Quick triage — pick your path

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Steps

Goal: Confirm which circuit trips, rule out a short or wiring fault, then isolate overload or a faulty appliance.

  • Go to the electrical panel. Find the tripped breaker (lever between on and off, or clearly off). Check the panel label to see which rooms or outlets it serves.
  • Good: You know the circuit. Proceed to Reset and test.
  • Bad: Label missing—turn off breakers one by one to map which one controls the dead outlets.

Reset and test

Goal: Confirm whether the fault is in the wiring (immediate retrip) or in the devices (overload or faulty appliance).

  • Unplug every device from the outlets on that circuit. Turn off any hardwired loads (e.g. ceiling lights) if possible.
  • Push the tripped breaker firmly to the off position, then flip it to on.
  • Good: The breaker stays on with nothing plugged in. Proceed to Isolate the cause.
  • Bad: The breaker trips immediately—short or wiring fault. Do not keep resetting. Call an electrician.

Isolate the cause

Goal: Find the faulty appliance or confirm overload by plugging in devices one at a time.

  • Plug in devices one by one and turn them on. When a device causes the breaker to trip, that device is likely faulty or the total load exceeds the circuit breaker rating.
  • If a single device trips the breaker by itself, that device may have an internal short circuit—replace or repair it.
  • If multiple devices together cause the trip, that is overload—reduce the load or have an electrician add a dedicated circuit.
  • Good: You found the cause. Reduce load or replace the faulty appliance.
  • Bad: Cause unclear or breaker still trips after reducing load—call an electrician.

When to get help

Call a licensed electrician if:

  • The breaker trips immediately with nothing plugged in (short or wiring fault).
  • You smell burning or see scorch marks.
  • The panel or breaker feels hot.
  • You have reduced the load and the breaker still trips.
  • You need a new circuit—do not replace the breaker with a larger one; the wire size may not support it.

Verification

  • The breaker stays on with normal use.
  • No immediate retrip when you reset with nothing plugged in.
  • Devices on the circuit run without tripping after you have reduced the load or replaced the faulty appliance.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Identify the circuit Find the tripped breaker and confirm which outlets or rooms it serves.
  2. Unplug and reset Unplug all devices on the circuit, reset the breaker. If it trips immediately—call an electrician.
  3. Isolate the cause Plug in devices one by one to find the faulty appliance or overload.
  4. Reduce load or replace appliance Move devices to another circuit, avoid running high-draw appliances together, or replace the faulty device.
  5. Call an electrician Immediate retrip, burning smell, hot panel, or repeated trips after reducing load.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • Which circuit trips (panel label or room/outlets)
  • Whether the breaker trips immediately with nothing plugged in
  • Which device caused the trip (if found)
  • Steps already tried

Do you know which circuit is tripping?

Find the tripped breaker in the panel. The lever will be between on and off, or clearly off. Check the panel label for which rooms or outlets it serves.

Go to the electrical panel. Find the breaker in the tripped position. Check the panel label. If the label is missing, turn off breakers one by one to find which one controls the dead outlets. Good: you know the circuit. Bad: unsure—methodically test breakers to map the circuit.
Question

Do you know which circuit is tripping?

Continue

You can change your answer later.

Unplug all devices and reset the breaker

Unplug every device on that circuit. Turn off hardwired loads if possible. Reset the breaker firmly to off, then on.

Unplug all devices on the affected circuit. Reset the breaker: push firmly to off, then to on. Good: breaker stays on with nothing plugged in—proceed to isolate. Bad: breaker trips immediately—short or wiring fault; call an electrician. Do not keep resetting.

Yes No (trips immediately)

You can change your answer later.

Plug in devices one at a time

Plug in devices one by one. When one causes the breaker to trip, that device is faulty or the circuit is overloaded.

Plug in devices one at a time and turn them on. Device causes trip: that device is faulty or the total load is too high. Unplug it. Overload: multiple devices together exceed the circuit breaker rating—reduce load or add a dedicated circuit. Single faulty device: replace or repair the appliance.

Yes No (still trips, cause unclear)

You can change your answer later.

Reduce load or replace faulty appliance

For overload: move devices to another circuit or avoid running high-draw appliances together. For a faulty appliance: unplug it and replace or repair. Do not replace the breaker with a larger one—the wire may not support it. Have an electrician add a dedicated circuit if you need more capacity.

Done

Call an electrician

Call a licensed electrician if: the breaker trips immediately with nothing plugged in (short circuit or wiring fault); you smell burning; the panel or breaker is hot; you see scorch marks; or you have reduced the load and it still trips. Wiring and panel work are not DIY.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why does a breaker trip?
Usually overload (too many devices drawing more than the circuit rating) or a short circuit (hot wire touching neutral or ground). Less often: a faulty appliance, a weak breaker, or damaged wiring. Unplug everything and reset—if it trips immediately, the fault is in the wiring or panel.
Can I replace a 15-amp breaker with a 20-amp breaker?
No. The wire size is matched to the breaker. A 15A circuit uses 14-gauge wire; a 20A circuit uses 12-gauge. Upgrading the breaker without upgrading the wire can cause overheating and fire. Have an electrician add a new circuit if you need more capacity.
When should I call an electrician for a tripping breaker?
Call an electrician if the breaker trips immediately with nothing plugged in, you smell burning, the panel is hot, the breaker feels hot, or you have reduced the load and it still trips. Wiring and panel work require a licensed professional.

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