My entire GFI circuit is not working, ie no lights/outlets on this
line works. Thinking it's the GFI itself, I replaced it. No
difference. The GFI outlet is right by the fuse box and it has full
power and the green light is on. But not so at any of the other
outlets or switches on that line.
I opened up a non-working outlet and checked voltages. There is a
full 120 Volts between the white and ground and also between the black
and ground, but no voltage between the black and white.
Everything has been fine for the 17 years I've lived here, so it
puzzles me why it won't work now.
I'm new to this. Any ideas ?
sounds like you have an open neutral (white wire) somewhere in the circuit as
you should not have 110 volts between white and ground but you are seeing a
back feed because of the open wire.Be sure to turn off the circuit when your
working on it as open neutrals can bite real hard......
I'd re-open that bathroom outlet and, after turning off the power, do a very
thorough inspection of the box,wiring, and the outlet itself. The "green
stuff" you found is most likely copper oxide. That is to copper as rust is
to steel. It generally means water. This could be simply from the moist
bath environment, but could be from water getting in from some other source.
I'd dis-assemble the entire thing and make sure there was no other sign of
water. They I'd clean all the wires, replace the outlet itself (not worth
cleaning since they are inexpensive) and any wirenuts, and put it all back
together. Give it a couple months and re-heck it to see if it's still clean
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