Electrician guide

GFCI Outlet Not Working? Causes and Quick Checks

A GFCI (ground-fault circuit interrupter) outlet protects wet areas like bathrooms, kitchens, garages, and exteriors by shutting off power when it detects a ground fault. When it trips, downstream outlets on the same circuit often lose power too—even if they look normal.

Safe checks you can do first

  1. Press RESET firmly on the GFCI until it clicks. Then press TEST and RESET again to confirm it holds.
  2. Check other GFCIs in the bathroom, garage, or exterior. One tripped GFCI can protect multiple outlets.
  3. Inspect the breaker panel for a tripped breaker on the circuit—not just the outlet button.
  4. Unplug devices on the circuit and try RESET again. A faulty appliance can prevent reset.
  5. Look for moisture in outdoor boxes or near sinks. Dry the area before retesting if safe to do so.

Common causes

  • Ground fault or leak: Water exposure, damaged cord, or failing appliance.
  • Worn GFCI mechanism: Older outlets may not latch after years of use.
  • Loose wiring: Back-stab connections or loose terminals cause intermittent trips.
  • Overloaded circuit: Too many devices on one protected line.
  • Incorrect downstream wiring: Line vs load terminals mixed up during DIY installs.

When to call an electrician

  • GFCI will not reset after unplugging everything and checking the breaker.
  • Outlet feels warm, smells burnt, or shows discoloration.
  • Repeated trips with no obvious cause.
  • You are not comfortable working inside the electrical box.

Final takeaway

Most GFCI issues start with a simple reset or a tripped upstream device. If power does not restore quickly, treat it as a safety issue and bring in a licensed electrician rather than bypassing protection.