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GFCI Receptacle



GFCI Receptacle

If power is lost to lights or receptacles, and a circuit breaker is not tripped, it may be a tripped GFCI receptacle. A tripped GFCI receptacle may cause a standard receptacle to lose power. Power to receptacles or lights in a bathroom may be supplied from an GFCI receptacle in the same or another bathroom, or the garage.

If the GFCI receptacle continues to trip after resetting, there may be a problem with something that is plugged in, or a bad GFCI. If there is no power coming out of the GFCI, but a good 120 V and neutral going into it, the GFCI will need to be replaced.

For information on locating these receptacles, see the GFCI configuration page.

GFCI Connected to the Load of Another GFCI

When a house is being sold, there is usually a home inspection related to a mortgage or a home warranty. Electrical inspections usually check for GFCI receptacles in required locations including kitchens and bathrooms.

When preparing for a home inspection, someone may replace standard receptacles with GFCIs in the bathrooms or kitchen, not knowing that they are already protected by a GFCI load in a different location. This can cause GFCIs to trip frequently.

    Correct GFCI Wiring Diagram           Incorrect GFCI Wiring Diagram

      Normal GFCI line load configuration                     GFCI connected to the load of another GFCI

How to Test and Troubleshoot GFCIs

GFCI Trips Frequently

A GFCI receptacle can trip frequently for the following reasons.

Electrical Troubleshoot ing

Meters and Testers

Battery Testers

Input Impedance

High Wattage Appliances

Circuit Breakers

Troubleshoot Outlets

Troubleshoot GFCIs

Troubleshoot Lights

Troubleshoot Switches

Troubleshoot 3-way Switches

Troubleshoot 4-way Switches

Open Neutral

Open Neutral Multi-wire Circuit

No Power to Outlets

Troubleshoot Garage Door Opener