Search guides

Fix a GFCI that trips

We'll confirm a ground fault, help you isolate the cause by unplugging devices and checking for moisture, replace a faulty appliance or GFCI, or tell you when to call an electrician.

Troubleshooting · Home maintenance
10–30 min
What you'll need
  • Flashlight (to see outlets and cords)
  • Replacement GFCI outlet (if the GFCI itself is faulty; match amperage and line/load configuration)
  • Screwdriver (if replacing the GFCI)
Step 1 of 5

Quick triage — pick your path

Quick triage — pick your path

Choose the option that matches what you see. You can jump straight to that section.

Show full guide

Steps

Goal: Confirm the GFCI has tripped, rule out a wiring fault, then isolate the cause—moisture, faulty appliance, or faulty GFCI.

  • Find the GFCI outlet (Test and Reset buttons). When tripped, the Reset button is popped out. Press Reset to restore power.
  • Good: Power restored. If it trips again, proceed to Unplug and reset.
  • Bad: No GFCI found or outlet still dead—check if a different GFCI protects the circuit (bathroom, kitchen, garage).

Unplug and reset

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

  • Unplug every device from the GFCI and from any downstream outlet that lost power. Turn off any hardwired loads on that circuit if possible.
  • Check for moisture—wet outlet face, damp bathroom, water near appliances. Wipe dry if damp.
  • Press the Reset button firmly. If the GFCI trips immediately with nothing plugged in, the fault is in the wiring or the GFCI itself—call an electrician. Do not keep resetting.
  • Good: The GFCI stays on with nothing plugged in. Proceed to Isolate the cause.
  • Bad: The GFCI trips immediately—ground fault in wiring. Call an electrician.

Isolate the cause

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

  • Plug in devices one by one and turn them on. When a device causes the GFCI to trip, that device has a ground fault—damaged cord, internal moisture, or faulty wiring.
  • Inspect the cord of any device that caused the trip. Look for fraying, cracks, exposed wires, or burn marks. Replace the cord or the appliance if damaged.
  • Good: You found the cause. Replace the faulty appliance or its cord.
  • Bad: Cause unclear, or GFCI trips with nothing plugged in—replace the GFCI or call an electrician.

Replace the GFCI

Goal: Replace a faulty GFCI when it trips with nothing plugged in and an electrician has ruled out wiring.

  • Turn off power at the circuit breaker. Remove the old GFCI and install a new one. Match the line vs load wire connections—incorrect wiring can cause nuisance trips.
  • Restore power and test. If the new GFCI still trips with nothing plugged in, the fault is in the wiring—call an electrician.

When to get help

Call a licensed electrician if:

  • The GFCI trips immediately with nothing plugged in (ground fault in wiring).
  • You smell burning or see scorch marks.
  • You see damaged or exposed wiring.
  • You have replaced the GFCI and it still trips with nothing plugged in.
  • You are not comfortable working with electrical connections.

Verification

  • The GFCI 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 replaced the faulty appliance or cord.
  • The outlet and surrounding area are dry.

Escalation ladder

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

  1. Confirm the trip Verify the GFCI has tripped (Reset button popped); check for moisture.
  2. Unplug and reset Unplug all devices from the GFCI and downstream outlets. Reset. If it trips immediately—call an electrician.
  3. Isolate the cause Plug in devices one by one to find the faulty appliance.
  4. Replace appliance or GFCI Replace damaged cords, faulty appliances, or the GFCI itself if it trips with nothing plugged in.
  5. Call an electrician Immediate retrip, burning smell, damaged wiring, or GFCI replacement did not fix it.

What to capture if you need help

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

  • Which outlets lost power (GFCI location and downstream)
  • Whether the GFCI trips immediately with nothing plugged in
  • Which device caused the trip (if found)
  • Whether moisture was present
  • Steps already tried

Has the GFCI tripped?

A tripped GFCI has the Reset button popped out. Press Reset to restore power. If it trips again, a ground fault exists.

Find the GFCI outlet (Test and Reset buttons). Check if the Reset button is popped out. Press Reset. Good: power restored. Bad: trips again—proceed to isolate the cause.
Question

Has the GFCI tripped?

Continue

You can change your answer later.

Unplug all devices and check for moisture

Unplug every device from the GFCI and downstream outlets. Check for moisture—wet outlets or damp locations often cause trips.

Unplug all devices from the GFCI and any outlet that lost power. Check for moisture—wipe dry if damp. Press Reset. Good: GFCI stays on with nothing plugged in—proceed to isolate. Bad: GFCI trips immediately—ground fault in wiring or GFCI; 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 GFCI to trip, that device has a ground fault.

Plug in devices one at a time and turn them on. Device causes trip: that device has a ground fault—damaged cord, moisture, or internal fault. Unplug it. Check the cord for damage. Replace the cord or appliance. GFCI stays on with all devices: the earlier trip may have been moisture—keep the area dry.

Yes No (still trips, cause unclear)

You can change your answer later.

Replace faulty appliance or GFCI

For a faulty appliance: replace the cord or the appliance. For a GFCI that trips with nothing plugged in: turn off power at the breaker, replace the GFCI with a new one—match line vs load connections. If the new GFCI still trips with nothing plugged in, the fault is in the wiring—call an electrician.

Done

Call an electrician

Call a licensed electrician if: the GFCI trips immediately with nothing plugged in (ground fault in wiring); you smell burning; you see scorch marks or damaged wiring; or you have replaced the GFCI and it still trips. Wiring work is not DIY.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why does a GFCI trip?
A GFCI trips when it detects current leaking to ground—a ground fault. Common causes: moisture in the outlet or appliance, a faulty appliance with a damaged cord, water near the device, or damaged wiring. The GFCI protects you from shock.
Can I replace a GFCI outlet myself?
Yes, if you turn off power at the circuit breaker first and match the wire connections. If the GFCI trips immediately with nothing plugged in, the fault may be in the wiring—call an electrician. Do not work on live wires.
When should I call an electrician for a tripping GFCI?
Call an electrician if the GFCI trips immediately with nothing plugged in, you smell burning, you see scorch marks or damaged wiring, or you have replaced the GFCI and it still trips. Wiring faults require a licensed professional.

Rate this guide

Was this helpful?

Continue to