Quick answer
Turn off power, press the reset button, and test. If it still doesn’t work, check for tripped breakers, faulty wiring, or a bad outlet. Replace the outlet if necessary.
Confirm the symptom
- GFCI outlet has no power
- Reset button is out or not working
- No power to downstream outlets protected by the GFCI
- Breaker is not tripped but outlet is dead
Tools and prep
Disclosure: We may earn a commission from qualifying purchases via affiliate links. Learn more.
Prep & safety
- Turn off the power at the circuit breaker to avoid electric shock.
- Verify power is off using a non-contact voltage tester.
Step-by-step troubleshooting
- Reset the GFCI outletDo: Press the reset button on the outlet.Observe: The reset button stays in and the outlet powers on.Means: The outlet was tripped and is now functional.Next: Test the outlet with a device.
- Check the circuit breakerDo: Locate the circuit breaker for the GFCI outlet and ensure it is in the 'ON' position.Observe: Breaker is on and not tripped.Means: The issue is not with the breaker.Next: Test the GFCI outlet again.
- Test the outlet with a multimeterDo: Set the multimeter to AC voltage and test between the hot and neutral slots.Observe: The multimeter reads 120V.Means: The outlet is receiving power.Next: Check the wiring connections.
- Inspect the wiring connectionsDo: Remove the outlet cover and check the wiring for loose or damaged connections.Observe: Wires are securely connected and not damaged.Means: The wiring is intact.Next: Replace the GFCI outlet if the issue persists.
- Test the GFCI outlet with a testerDo: Plug in a GFCI outlet tester and press the test button.Observe: The outlet trips and the multimeter reads 0V.Means: The outlet is functioning correctly.Next: Monitor the outlet for further issues.
- Check for water or moistureDo: Inspect the outlet and surrounding area for signs of water or moisture.Observe: No water or moisture is present.Means: Moisture is not causing the issue.Next: Replace the outlet if necessary.
- Replace the GFCI outletDo: Turn off the power, disconnect the wires, and install a new GFCI outlet.Observe: The new outlet powers on and functions correctly.Means: The old outlet was faulty.Next: Test the new outlet with a device.
- Check downstream outletsDo: Test all outlets connected to the GFCI for power.Observe: Downstream outlets have power.Means: The GFCI is working correctly.Next: Monitor for recurring issues.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Tripped GFCI outlet The outlet tripped due to a ground fault or overload. | Common | Easy | None |
| Faulty wiring Loose or damaged wires prevent power from reaching the outlet. | Sometimes | Medium | Wire nuts or electrical tape |
| Damaged GFCI outlet The outlet is faulty and needs replacement. | Sometimes | Medium | GFCI outlet |
| Tripped circuit breaker The circuit breaker for the outlet is off. | Common | Easy | None |
| Moisture or water exposure Moisture triggered the GFCI to trip. | Sometimes | Easy | None |
| Overloaded circuit Too many devices on the same circuit caused an overload. | Sometimes | Easy | None |
| Faulty GFCI outlet tester The tester is not working correctly. | Rare | Easy | GFCI outlet tester |
| Incorrect wiring during installation The outlet was wired incorrectly. | Rare | Hard | GFCI outlet |
Parts you might need
Match these specifications when replacing parts:
- GFCI outlet: match the amperage and voltage rating of the old outlet
- Wire nuts: match the wire gauge and number of wires to connect
- Electrical tape: ensure it is rated for electrical use and the correct width
Disclosure: We may earn a commission from qualifying purchases via affiliate links. Learn more.
Double-check the model number on the old outlet for exact replacement.
When to call a professional
- If you are not comfortable working with electrical systems
- If the outlet continues to trip after replacement
- If there is visible damage or burning smell from the outlet
- If the issue affects multiple circuits or the main panel
FAQ
Can I reset a GFCI outlet without turning off the power?
Yes, but always verify the outlet is off with a voltage tester before handling wires.
Why does my GFCI outlet keep tripping?
Frequent tripping may indicate a ground fault, moisture, or an overloaded circuit.
Do all GFCI outlets need to be replaced over time?
Yes, GFCI outlets can degrade and should be replaced every 7–10 years for safety.
Can a bad GFCI outlet affect other outlets?
Yes, if other outlets are wired downstream, a faulty GFCI can cut power to them.
Is it safe to use a regular outlet tester on a GFCI outlet?
Yes, but a GFCI-specific tester provides more accurate results.