GFCI Keeps Popping: How to Fix It

Quick answer

A GFCI outlet that keeps tripping is often caused by a ground fault or moisture. Unplug all devices, press the reset button, and check for water or damaged wiring. If the problem persists, replace the outlet or consult an electrician.

Confirm the symptom

• GFCI outlet trips frequently
• Outlet resets but trips again quickly
• No power to devices plugged into GFCI outlet
• Flickering lights or buzzing sound when GFCI trips

Tools and prep

• Non-contact voltage tester
• Multimeter
• Screwdriver set
• Wire stripper
• Infrared thermometer
• GFCI outlet
• Electrical tape

Disclosure: We may earn a commission from qualifying purchases via affiliate links. Learn more.

Prep & safety

• Turn off the power at the circuit breaker before working on the outlet.
• Check for any visible signs of water or damage around the GFCI outlet.
• Unplug all devices connected to the GFCI outlet and any downstream outlets.

Step-by-step troubleshooting

1. Step 1: Reset the GFCI Outlet
   Do: Press the reset button on the GFCI outlet until it clicks.
   Observe: The outlet should return to normal operation.
   Means: The issue may have been temporary.
   Next: If the outlet resets and stays on, check for any devices causing the problem.
2. Step 2: Check for Water or Moisture
   Do: Inspect the outlet and surrounding area for signs of water or high humidity.
   Observe: Water or condensation near the outlet.
   Means: Moisture is causing the GFCI to trip.
   Next: Dry the area thoroughly and consider installing a weatherproof cover if it's an outdoor outlet.
3. Step 3: Test Individual Devices
   Do: Plug in one device at a time to identify if a specific appliance is causing the trip.
   Observe: The GFCI trips when a specific device is plugged in.
   Means: The device has a ground fault or electrical issue.
   Next: Unplug the device and test it with a multimeter or have it inspected by a professional.
4. Step 4: Test the Outlet with a Multimeter
   Do: Use a multimeter to test the voltage and continuity of the GFCI outlet.
   Observe: Voltage readings outside the normal range (120V) or no continuity.
   Means: There may be a wiring issue or the outlet is faulty.
   Next: Check the wiring connections and consider replacing the outlet if necessary.
5. Step 5: Inspect the Wiring
   Do: Carefully remove the outlet cover and inspect the wiring for loose connections, frayed wires, or corrosion.
   Observe: Loose wires or damaged insulation.
   Means: A wiring issue is causing the GFCI to trip.
   Next: Tighten any loose connections and replace damaged wires with new ones.
6. Step 6: Replace the GFCI Outlet
   Do: If all else fails, replace the GFCI outlet with a new one.
   Observe: The new outlet functions without tripping.
   Means: The original outlet was faulty.
   Next: Ensure the new outlet is properly wired and test it thoroughly.

Common causes

Parts you might need

When replacing parts related to a GFCI outlet, ensure you match the following specifications:

• GFCI outlet: match amperage (15A or 20A) and voltage (120V) to the existing outlet
• Electrical wire: match wire gauge (14 AWG for 15A, 12 AWG for 20A) and insulation type
• Weatherproof cover: match the outlet size and type (indoor or outdoor)

Disclosure: We may earn a commission from qualifying purchases via affiliate links. Learn more.

Always turn off the power at the circuit breaker before replacing any electrical components.

When to call a professional

• The GFCI outlet continues to trip after replacing it with a new one
• You find damaged wiring that you're not comfortable repairing
• The problem affects multiple outlets or circuits
• You smell burning or see sparks when working on the outlet
• You're unsure about the correct wiring configuration or safety procedures

FAQ

Related guides

• GFCI outlet not working