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GFCI Outlet Not Working? How to Test and Reset It

June 19, 2026

You plug something into the bathroom outlet and nothing happens. No power. The outlet looks fine, but it’s dead. You check the breaker panel and everything is ON. What you’re probably dealing with is a tripped GFCI — and it might not even be in the same room.

I once lost power to a bathroom outlet and spent twenty minutes checking the breaker panel before I remembered the GFCI in the garage. It had tripped during a rainstorm and taken the bathroom circuit with it. One press of the RESET button and everything came back. Here’s the full diagnostic sequence, from the obvious to the “I didn’t know that outlet existed.”

What You’ll Need

Step 1: Press the RESET Button — Firmly

The fix that works more often than anything else: push the RESET button. Find the two buttons on the face of the GFCI outlet. Press RESET firmly until you hear and feel a click. The button should stay pressed in. If it does, power is restored. Plug something in to confirm.

If the RESET button pops right back out, the outlet has an active ground fault or the wiring is damaged. If the button won’t go in at all, the outlet may have failed internally or lost power from upstream. Move to the next steps.

Step 2: Test with the TEST Button

Plug a lamp into the outlet and turn it on. Press the TEST button. You should hear a loud click and the lamp should turn off immediately. That’s the GFCI doing its job — cutting power in response to a simulated ground fault. Press RESET to restore power.

If pressing TEST does nothing — no click, the lamp stays on — the GFCI has failed internally. A GFCI that doesn’t trip is not protecting you. It needs to be replaced. This is not a “maybe fix it later” situation. A non-functioning GFCI is just a regular outlet sitting next to water.

Step 3: Hunt Down Every Other GFCI in the House

One GFCI outlet can protect multiple downstream outlets wired in series. A tripped GFCI in the garage can kill power to a bathroom on the opposite side of the house. I’ve seen it. It’s confusing every time.

Check every GFCI in the home:

Press RESET on every single one, even the ones that look fine. If you find one that was tripped and reset it, go back and check the original dead outlet. It may now have power.

Step 4: Check the Breaker Panel

A GFCI can go dead because the circuit breaker feeding it tripped. Open the main panel and look for any breaker that’s sitting between ON and OFF. Flip it fully to OFF until you feel the click, then firmly to ON. Surges and shorts can trip both breakers and GFCIs. Don’t assume it’s one or the other.

Step 5: Look for Moisture, Cracks, or Burn Marks

A GFCI exposed to moisture can fail internally. Outdoor outlets get rain. Kitchen outlets get steam and grease. Check the faceplate for cracks, brown discoloration, or moisture beading around the edges. If the outlet looks damaged or wet, do not press the buttons — replace the entire unit. Electrical tape over a damaged outlet is not a repair.

Step 6: Test with a GFCI Outlet Tester

A three-light GFCI tester costs about $10 and removes all guesswork. Plug it in. The lights on the tester will tell you if the outlet is wired correctly — open ground, reversed polarity, or missing neutral. Press the tester’s built-in TEST button. If the GFCI doesn’t trip, it’s dead.

This is the tool I use for the monthly GFCI checks throughout my house. It’s faster than plugging in a lamp and gives you wiring diagnostics that a lamp can’t.

Step 7: Replace the GFCI — Or Call an Electrician

If you’ve worked through every step and the outlet is still dead, the GFCI needs to be replaced. A standard 15-amp GFCI outlet costs $15 to $25 at any hardware store. Turn off the breaker before replacing it. Wire the new unit exactly as the old one was wired — LINE terminals for power coming in, LOAD terminals for downstream outlets.

Here’s the stop condition: if you install a brand new GFCI and it still doesn’t work — no power, won’t reset, tester shows a fault — the problem is not the outlet. The wiring inside the wall is damaged. Stop. Call a licensed electrician. Continuing to troubleshoot live wiring when the outlet itself isn’t the problem is how people get shocked.

A Habit Worth Building

Test every GFCI in your home once a month. Press TEST, hear the click, press RESET. It takes under a minute per outlet. I do it on the first of every month, same day as smoke detector batteries. The outlet you never test is the one that won’t work when you need it.

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