How much does it cost to fix a GFCI that won't reset?

The short answer

Professional repair typically runs $120–$350. This is not a DIY job, so plan on hiring a pro.

The DIY number is basically the price of a new outlet plus a wire nut or two. The pro number is mostly diagnosis time, because tracing a hidden ground fault takes longer than swapping the part.

Here's the part that saves people money: a refused reset is often the outlet doing its job. It's sensing a leak and locking out. Fix the leak and it resets fine, no new part needed.

So before you spend anything, unplug everything on that circuit and try the reset. That one step decides whether this is a five-minute fix or a real repair.

What it costs in 2026

A quality GFCI outlet runs $18 to $30, and the rest is a weatherproof cover, wire nuts, or a $10 plug-in outlet tester if you don't own one.

The pro range of $120–$350 is mostly labor. Expect a service call minimum of $125 to $200 in most metros, plus roughly $95 to $150 per hour of troubleshooting.

A clean outlet swap where the pro finds no hidden fault lands near the bottom of that range. If they have to trace a ground fault through downstream outlets and junction boxes, you're at the top or beyond.

The wildcard is a fault buried in the wall or an underground feed to an outdoor outlet. That kind of tracing can push a job past $600, though it's not the typical case.

One honest note: if your outlet is 15-plus years old, replacing it is worth the $30 even if drying it out fixes today's problem. Old GFCIs fail again soon.

• GFCI outlet part: $18 to $30
• Weatherproof cover and misc supplies: $8 to $20
• Plug-in outlet tester (one-time): $10 to $18
• Pro service call minimum: $125 to $200
• Pro troubleshooting labor: $95 to $150 per hour
• Hidden or underground fault tracing: can exceed $600

How we built these numbers

The cost ranges come from current retail pricing on GFCI outlets and common supplies, plus typical 2026 US electrician service-call and hourly labor rates across major metros.

The DIY figure assumes you already own basic tools and buy a mid-grade outlet, a cover, and a tester if needed. The pro figure assumes a standard diagnostic visit with a straightforward fix.

The cause rankings reflect what field techs see most often on won't-reset calls: real ground faults first, dead outlets and power problems close behind, then moisture and wiring errors.

Your actual cost shifts with region, how buried the fault is, and whether the outlet needs replacing on top of the repair. Treat these as planning ranges, not quotes.

What's actually going on

In the field, a won't-reset GFCI almost always falls into one of three buckets. There's a real fault on the circuit, the outlet is dead, or there's no power reaching it in the first place.

The most common by far is a genuine ground fault. Water in an outdoor box, a chewed appliance cord, an old space heater, all of these leak current and the GFCI refuses to power them. That's the whole point of the device.

Second is a worn-out GFCI. The internal sensing electronics don't last forever. After 10 to 15 years, the button goes dead and won't latch no matter what you do.

Third is no power, which fools a lot of people. If the breaker is tripped or there's a loose connection upstream, the reset button feels dead and folks blame the outlet when the panel is the real issue.

Less often, it's a wiring problem: line and load reversed after a DIY swap, or a backstabbed wire that's worked loose and started arcing. Both are fixable, but the second one is a heat concern.

How to diagnose it step by step

Work through these in order. Most people solve it before step five without touching a screwdriver.

Start by unplugging every device on the circuit. That includes downstream outlets the GFCI feeds, which might be in a different room entirely.

Go to the breaker panel and check the breaker for that circuit. If it's tripped, it may sit in a middle position that looks on but isn't. Push it fully off, then firmly back on.

Return and press RESET hard. It should click and stay in. If it holds now, plug devices back one at a time until the trip returns. That last device is your culprit.

If it's an outdoor or bathroom outlet, kill the breaker, open it up, and check for moisture. Dry it out for a few hours before trying again.

If nothing's plugged in, the breaker's confirmed on, the box is dry, and it still won't reset, the GFCI itself is almost certainly dead. Replace it or call a pro.

• Unplug everything on the circuit, including downstream outlets
• Fully cycle the breaker off and on
• Press reset firmly and confirm it holds
• Reintroduce loads one at a time to isolate a bad device
• Check for and dry any moisture in outdoor or bath boxes
• Replace or call a pro if it won't reset empty with power confirmed

DIY or call a pro

This is one of the more DIY-friendly electrical jobs, with a real caveat. Isolating the fault (the unplug-and-test routine) is safe for anyone. Replacing the outlet is fine if you're comfortable in the box.

Do it yourself if the GFCI resets empty, or if it's clearly just an old dead unit and the wiring looks clean. Kill the power, label LINE and LOAD before disconnecting, and match them on the new outlet.

The single most common DIY mistake is reversing LINE and LOAD. Newer GFCIs actually lock out when they detect it, which is a mercy, but it confuses people who think they got a bad part.

Call a pro if the breaker keeps tripping, if it won't reset with everything unplugged, or if you see any scorching, feel heat, or smell burning. Those mean a fault in the wiring, not the outlet.

Also call a pro if the outlet feeds a lot of downstream circuits and you can't figure out where the fault lives. That tracing is what they're good at, and it's worth the labor to get it right.

Can this wait?

It depends entirely on what's causing it. A dead outdoor outlet on a dry day is an annoyance you can live with for a few days. A GFCI refusing to reset because of a live fault is not.

If the breaker also trips or you notice any heat or smell, treat it as same-day. Those signal an active arcing or short condition that can escalate to a fire.

If it resets empty and only trips with one device plugged in, you've found the problem and there's no urgency, just don't use that device.

The gray area is an outlet that won't reset for no obvious reason with nothing plugged in. That points to a wiring fault you can't see, and I'd get it looked at within a week, sooner if it's the only outlet in a critical spot.

Moisture is the usual seasonal culprit

If your problem outlet is outdoors or in a bathroom, moisture jumps to the top of the list. GFCIs are built to catch exactly the tiny current leak that water creates.

Spring rain and summer storms are peak season for outdoor trips. Sprinkler systems soak exterior outlets near patios and foundations without anyone noticing.

Winter brings a quieter version. Condensation in an unheated garage on a cold morning can bridge contacts just enough to lock out the reset until things warm up.

The fix is usually drying the box and resealing the weatherproof cover. If the in-use cover (the bubble type) is cracked or the gasket's gone, replace it for $15 or so. A good cover prevents the next dozen trips.

If your home is older

Homes built before the mid-1970s often had GFCIs added later, and those retrofits vary in quality. If you're staring at a GFCI in a 40-year-old bathroom, its age alone is a fair reason it won't reset.

Older two-wire systems without a ground complicate things. GFCIs can legally protect ungrounded outlets, but the wiring behind them is sometimes brittle cloth-insulated conductors that crack when disturbed.

If you open a box in an older home and the insulation is crumbling or the wires feel stiff and fragile, stop. That's a pro job, and the electrician may recommend rewiring that run rather than patching it.