My RV is running 120v off an inverter, if that matters.
One circuit is for everything in the rear of the RV and goes from the breaker panel to a GFCI in the bedroom and then branches out to all 4 receptacles in the bedroom - it also feeds the receptacle in the bathroom too.
Replaced the old GFCI in the bedroom and made sure to get the live wires from the panel into the LINE side and the other two sets of wires on the LOAD side. It lights up green. So far so good.
Then tried replacing the GFCI in the bathroom. It will not reset. Pressing the RESET button just gets me a red LED on the receptacle.
Took that same GFCI into my house and tried it on a regular circuit and it does reset properly and gives a green LED, so it is not defective.
So why doesn't it work in the bathroom in the RV?
A) There could be a short between the first GFCI and the bathroom box, but then wouldn't the first GFCI trip?
B) Do I actually need a GFCI in the bathroom if its already protected by one in the circuit? I'm guessing it's code because every bathroom seems to have one.
C) How do I find out what's making it fail to reset?