Quick answer
Turn off the power at the circuit breaker, unplug devices, and press the reset button. If it still won't reset, there may be a wiring issue or a faulty outlet that needs replacement.
Confirm the symptom
- GFCI outlet is in the tripped position
- Reset button does not pop out when pressed
- No power to the outlet or connected devices
- Test button does not work
Tools and prep
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Prep & safety
- Turn off the main power to the affected circuit at the breaker box.
- Ensure no devices are plugged into the GFCI outlet or downstream outlets.
- Wear rubber-soled shoes and use insulated tools for safety.
Step-by-step troubleshooting
- Check Power SourceDo: Verify the circuit breaker for the GFCI outlet is in the 'on' position.Observe: Breaker is off or in the middle position.Means: Power is not reaching the GFCI outlet.Next: Turn the breaker fully off, then back on.
- Unplug DevicesDo: Unplug all devices from the GFCI outlet and any downstream outlets.Observe: No devices are connected.Means: A faulty device may be causing the trip.Next: Press the reset button on the GFCI outlet.
- Reset the GFCIDo: Press the reset button firmly on the GFCI outlet.Observe: Reset button pops out and stays in.Means: The outlet has reset successfully.Next: Test the outlet with a device.
- Test for PowerDo: Use a non-contact voltage tester near the outlet's slots.Observe: Voltage tester lights up.Means: Power is reaching the outlet.Next: Plug in a device to confirm functionality.
- Inspect WiringDo: Turn off the power and remove the outlet cover to check for loose or damaged wires.Observe: Loose or frayed wires are present.Means: Wiring issue is causing the GFCI to trip.Next: Tighten or replace damaged wires.
- Test with MultimeterDo: Set the multimeter to AC voltage and test between hot and neutral wires.Observe: Voltage reading is outside the normal range (120V).Means: There is an electrical issue in the circuit.Next: Consult an electrician for further diagnosis.
- Replace the GFCI OutletDo: Turn off the power and replace the GFCI outlet with a new one.Observe: New outlet resets and powers devices normally.Means: The old outlet was faulty and needed replacement.Next: Test the new outlet with the test button.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Faulty GFCI outlet Internal components may be damaged or worn out. | Common | Medium | Replacement GFCI outlet |
| Ground fault in the circuit Moisture or damaged wiring can cause a ground fault. | Common | Hard | Wire repair kit |
| Overloaded circuit Too many devices drawing power can trip the GFCI. | Sometimes | Easy | None |
| Damaged devices A faulty appliance can cause the GFCI to trip. | Sometimes | Easy | None |
| Loose or corroded connections Poor connections can lead to electrical issues. | Sometimes | Medium | Wire connectors |
| Main circuit breaker issue A tripped or faulty breaker can prevent power from reaching the GFCI. | Rare | Medium | None |
| Improper installation Incorrect wiring during installation can cause malfunctions. | Rare | Hard | Professional electrician |
Parts you might need
When replacing a GFCI outlet, ensure the new one matches the following:
- GFCI outlet: match the amperage and voltage rating of the existing outlet
- Wire connectors: match the wire gauge (AWG) of the existing wires
- Cover plate: match the size and style of the existing cover plate
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Check the label on the old outlet for specifications like 15A or 20A, and ensure the new outlet is rated for the same.
When to call a professional
- The GFCI outlet still won't reset after following all steps
- You detect a burning smell or see visible damage to the outlet or wiring
- You're unsure about working with electrical systems
- The issue involves multiple outlets or the main circuit breaker
FAQ
Why won't my GFCI outlet reset?
It may be due to a ground fault, wiring issue, or a faulty outlet. Check for loose wires, damaged devices, or a tripped circuit breaker.
Can I use a regular outlet instead of a GFCI?
No, GFCI outlets are required in areas near water sources like kitchens, bathrooms, and garages for safety.
How often should I test my GFCI outlet?
Test your GFCI outlet monthly by pressing the test button and ensuring it trips, then reset it.
What if the GFCI outlet trips repeatedly?
Repeated tripping indicates an ongoing issue like a ground fault or overload. Unplug devices and check for faults or consult an electrician.