GFCI outlet keeps tripping
Tools: flashlight, hair dryer (to dry a damp outlet)
Steps
- Unplug everything on the GFCI and on the outlets downstream of it, press RESET, and see whether it holds.
- Plug devices back one at a time; an appliance with a failing heating element or a wet cord is the usual culprit.
- If an outdoor or garage outlet trips after rain, open the cover, dry it with a hair dryer on low, and refit the weatherproof cover properly.
- Press TEST then RESET once a month; a GFCI that will not reset at all has reached the end of its life (about 10–15 years).
Stop and call a pro if
- the GFCI trips with nothing plugged in anywhere on the circuit — a wiring fault or a neutral touching ground
- it trips only when a specific hard-wired appliance runs (dishwasher, disposal, pump) — that appliance has a ground fault
- the outlet is scorched or the RESET button is loose
What a pro does that you can't
An electrician isolates the leaking appliance or wiring section with an insulation tester, replaces the GFCI, and moves protection to the breaker when the circuit needs it.
DIY cost: $0 — a replacement GFCI is $15–25 if you are comfortable with outlet replacement where allowed