How often should you replace a GFCI outlet?
Updated July 2026
Replace a GFCI outlet every 10–15 years, and every 5–7 years in damp or outdoor locations where moisture wears the sensor faster. The hard rule overrides the calendar: replace any GFCI right now if it will not trip when you press the TEST button, or will not reset afterward. A GFCI trips on as little as a 4–6 milliamp imbalance to stop a shock before it stops your heart, so a dead one in a kitchen, bath, garage, or outdoor box quietly removes that protection exactly where water and electricity meet. The part is $15–25.
What changes the interval
| Your situation | Interval | Why |
|---|---|---|
| Indoor GFCI (kitchen, bath) | Every 10–15 years | Protected from weather, but the internal parts still age |
| Outdoor or weather-exposed | Every 5–7 years | Moisture and temperature swings wear the sensor |
| Garage, pool, dock, or boathouse | Every 5–7 years | Damp, corrosive, hard-used locations |
| Will not trip on the TEST button | Replace now | The shock protection is already gone |
| Will not reset or has no power | Replace | A failed relay or worn contacts |
| Post-2015 self-testing model | Watch the indicator | It flashes or cuts power when it self-diagnoses a fault |
| Nuisance-trips with no load plugged in | Test, then replace | Worn units trip on their own near end of life |
The cost of skipping it
What skipping it costs: a GFCI is the only thing standing between a wet appliance and a fatal shock, and when it dies it usually dies silent. The receptacle keeps delivering power, so nothing looks wrong until someone drops a hair dryer in the sink. A replacement is a $15–25 part and a 20-minute job, or $120–200 for an electrician. One GFCI often protects several downstream outlets on the same circuit, so a dead one can pull protection from a whole run. If yours keeps tripping instead, see why a GFCI keeps tripping.
How to do it (20 min DIY · $15–25 part, or $120–200 electrician)
- Press TEST monthly: the RESET button should pop out and power should cut. Press RESET to restore it.
- If it will not trip or will not reset, replace it (a $15–25 part).
- Kill the breaker and confirm the outlet is dead with a tester before touching any wire.
- Note which wires land on LINE versus LOAD before disconnecting; swapping them kills downstream protection.
- Wire the new GFCI to match, tuck the wires, and screw it into the box.
- Restore power and test the new outlet and any downstream outlets with the button and a plug-in tester.
Knowing the interval is the easy half. OnOtto reminds you at the right interval, and it won't let you snooze it into next year. Tasks persist until they're done, and completing GFCI replacements schedules the next one automatically.
Put this on autopilot, free for 30 daysFrequently asked questions
What is the difference between a GFCI outlet and an AFCI breaker?
They guard against different dangers. A GFCI watches for current leaking to ground, the imbalance that means electricity is finding a path through a person or water, and trips in milliseconds to prevent a shock. An AFCI watches for the erratic arcing of loose or damaged wiring that starts fires inside walls. GFCIs live where water is near, kitchens, baths, outdoors; AFCIs protect general circuits like bedrooms. Both are tested monthly with their own button. Some modern devices combine the two into a dual-function unit.
One outlet is dead but the breaker is on. What happened?
Very often an upstream GFCI tripped and took its downstream outlets with it. A single GFCI receptacle can protect several ordinary outlets wired after it, so when it trips, all of them go dead while the breaker still reads on. Hunt down the GFCI, usually in a nearby bathroom, kitchen, garage, or on an exterior wall, and press RESET. If it will not reset, or trips again immediately, that is your signal to replace it or find the ground fault it is catching.
Do GFCIs really wear out, or do they last forever?
They wear out. Inside is real electronics, a sensor and a relay, and they degrade with age, heat, humidity, and the surges that ride in on the line. That is why the TEST button exists and why a GFCI that no longer trips should be replaced on the spot. Field data and manufacturers put useful life around 10–15 years indoors and less outdoors. Testing monthly is how you catch the failure, because a dead GFCI still passes power and gives no other warning.
What changed with self-testing GFCIs?
Since 2015 the safety standard requires new GFCIs to test their own circuitry automatically and signal a fault, usually with an indicator light and by cutting power so a dead unit cannot masquerade as a live one. It is a real improvement, because most people never pressed the manual TEST button. It does not make them immortal, though: the same 10–15 year replacement window applies, and outdoor units still age faster. Watch the indicator, and replace when it warns.