GFCI outlet is 'dead' (no power, won't test or reset), when the wire feeding it is live. Outlet was working yesterday. Swapped outlet with another GFCI (that had previously been working) and it behaves the same.
I had to rebuild a piece of my house that had a (working) GFCI outlet on it. I purchased a new GFCI outlet, as the old one had a piece of broken plastic. I wired it up, being sure to put the white wire on the silver screw, black wire on brass, and avoiding the terminals with the sticker over them used to feed other receptacles. The outlet worked fine for a day. In case it matters, it's almost exactly this model:
Workers waterproofed near the outlet all the next day. (EPDM sealing a planter box.) It happened to be quite cold in the house for 6 hours, windows and doors open to 40° weather for ventilation. Presumably this paragraph is irrelevant.
Today, the outlet does not work. No power to items, no indicator light, pressing either RESET or TEST does nothing. The circuit breaker has not been tripped. An AC tester indicates power on the line.
I swapped the outlet with the previous GFCI outlet (which was working fine when last used). Same behavior (though the previous 10-year-old outlet never had an indicator light).
I removed the outlet, made the circuit breaker live, and used a multimeter on the bare wires. Measurements are:
- Hot-to-neutral: 121.4V (Black-to-white)
- Hot-to-ground: 121.4V (Black-to-bare)
- Neutral-to-ground: 0.0V (White-to-bare)
When I attached the GFCI outlet and measured the line terminals:
- Nothing plugged in: 121.4V
- Known-working lamp plugged in: 119.5V
What is going on with my power? Are both outlets coincidentally dead? Am I miswiring them? Most importantly: how do I fix this?
I've already discarded the box for the the new GFCI outlet, but it says on it:
Leviton INSP.1J460 17456-037 ZR 2
…and on the other end is a nicely printed UL sticker:
UL LISTED GROUND FAULT CIRCUIT INTERRUPTER CLASS A 2 POLE UNIT 20A 125V 60HZ ISSUE NO. 0045578 LEVITON MGF.CO.INC O
It may be a "Leviton X7599-E SmartlockPro Slim GFCI Tamper-Resistant Receptacle with LED Indicator, 15-Amp, Black", based on searching for features and images, but I'm not certain of this.
I forgot to mention, in case relevant, that I'm using a metal waterproof outdoor box for the outlet (this one), which has a grounding screw in it that I've attached to the ground wire. (Ground wire is clamped in the middle to this screw in the box, and then continues to be attached to the outlet.)