GFCI Outlet Keeps Tripping — What to Check from Outside the Box

A GFCI outlet that trips is doing its job. If it keeps tripping, that is a warning to track down. This page shows the checks you can do at the plug and on the face of the outlet — and where to stop.

General information only — not a substitute for an electrician’s judgment about your home’s wiring.

What a GFCI is

GFCI stands for ground fault circuit interrupter.

It is a safety device. It shuts off power when it detects a ground fault or leakage current. That means electricity is flowing somewhere it should not — such as through water or through a person.

ESFI: GFCIs “trip electrical circuits when they detect ground faults or leakage currents,” shutting off power if the electricity flowing into the circuit differs by even a slight amount from the electricity returning.

The U.S. Consumer Product Safety Commission (CPSC) says a GFCI can protect by shutting off the electricity in a circuit if it detects a current leakage.

A trip is the device doing its job. Repeated tripping is a warning to track down — not just an annoyance to keep resetting away.

Where GFCIs live

GFCIs come in two forms:

• As outlets, with TEST and RESET buttons on the face.
• As breakers.

The National Electrical Code requires GFCI protection in kitchens, bathrooms, garages, basements, crawlspaces, and outdoors (ESFI).

ESFI also notes a ground fault can happen if equipment gets wet.

One GFCI can protect other outlets

One GFCI outlet can also protect other regular outlets wired after it. Those are called downstream outlets (Leviton).

So a plain-looking dead outlet may mean a GFCI tripped somewhere else. If a regular outlet has no power, check the GFCI outlets nearby.

The outside-the-box check

Work through these steps in order. Stay at the plug and on the face of the outlet the whole time.

1. Unplug everything.
   Unplug everything plugged into the tripped outlet. Also unplug anything plugged into other outlets that lost power at the same time. They may be protected by this same GFCI.
2. Press RESET.
   If it clicks and stays set, and power stays on with nothing plugged in, the problem is probably one of the things that was plugged in — go to step 4.
3. Check for water — and know when to stop.
   If water or steam recently got into the area — a splash, a spill, heavy steam — let everything dry first. Do not use the outlet while it is wet. A GFCI can trip when equipment gets wet.
   
   If it trips again right away, or will not reset at all with everything unplugged — STOP. The problem is beyond the plug, and beyond this page. Call a licensed electrician.
4. Plug things back in, one at a time.
   Plug things back in one at a time, using each one briefly.
   The item that trips the GFCI is the suspect. Unplug it and leave it unplugged.
   A faulty appliance may be causing the trip and should be unplugged (Leviton). Do not keep using an appliance that trips the GFCI.

The monthly TEST

ESFI publishes these steps for testing a GFCI. You only need a nightlight, or a similar small device, and the buttons on the face of the outlet.

ESFI: “If the test or reset functions do not work, the GFCI should be replaced.”

CPSC: if a GFCI fails to operate as intended when the test button is pressed, stop using it and replace it.

That replacement is not a do-it-yourself step on this page. ESFI says GFCIs should only be installed by a licensed, qualified electrician — so if the TEST fails, stop using the outlet and call one.

Sources

• Electrical Safety Foundation International (ESFI) — “How to Use GFCIs”
• Electrical Safety Foundation International (ESFI) — “Ground Fault Circuit Interrupters (GFCI)”
• U.S. Consumer Product Safety Commission (CPSC) — guidance on GFCIs and testing.
• Leviton support — “What To Do When Your GFCI Outlet Trips”

Checked November 2026.

General information only — not a substitute for an electrician’s judgment about your home’s wiring.