Ground-fault circuit interrupters, commonly called GFCIs, are an important part of residential electrical safety.

You've probably seen GFCI outlets with the familiar TEST and RESET buttons. They're commonly found in kitchens, bathrooms, garages, outdoor areas, and other locations where electrical equipment may be exposed to moisture.

But what exactly does a GFCI do, and why is it used in these areas?

What Does a GFCI Outlet Do?

A GFCI monitors electrical current and can quickly interrupt power when it detects a difference between the current flowing through the circuit's conductors.

This protection is designed to reduce the risk of electrical shock under certain fault conditions.

GFCI protection can be provided through a GFCI receptacle or other appropriate means depending on the electrical installation.

Where Are GFCIs Commonly Used?

GFCI protection is commonly associated with locations where electricity and water may come into close proximity.

Depending on the applicable electrical code requirements and the home's electrical configuration, GFCI protection may be required or appropriate in areas such as:

• Bathrooms

• Kitchens

• Garages

• Outdoor areas

• Unfinished basements

• Laundry and utility areas

• Other locations where the applicable electrical requirements call for GFCI protection

Requirements can vary based on the type of installation and the applicable version of the electrical code, so an electrician can help determine what protection your home requires.

Why Does a GFCI Outlet Keep Tripping?

A GFCI that trips may be responding to an electrical fault, moisture, a problem with a connected device, or another issue affecting the circuit.

You can try resetting the GFCI once the immediate cause has been addressed. If it immediately trips again, won't reset, or repeatedly loses power, the circuit should be evaluated rather than repeatedly reset.

Why Isn't My GFCI Outlet Working?

If the RESET button won't stay engaged, the outlet may not be receiving power, the GFCI may have a problem, or there may be another issue with the circuit.

It's also possible for one GFCI device to provide protection to other outlets farther along the same circuit. If an outlet suddenly stops working, check nearby GFCI devices.

If you're unable to identify the cause, an electrician can test the circuit and determine what needs to be repaired.

Should You Test Your GFCI Outlets?

GFCI devices have test functions intended to verify that the protection mechanism is operating. Homeowners should follow the manufacturer's instructions for testing their devices.

If a GFCI doesn't respond as expected during a test, contact a qualified electrician for evaluation.

Get Help With GFCI Outlets in New Jersey

GFCI protection is an important part of residential electrical safety, particularly in areas where electricity may be exposed to moisture.

If a GFCI keeps tripping, won't reset, or appears damaged, Thomas Edison Electric can help diagnose the problem and determine whether the outlet, wiring, circuit, or another component needs attention.