Quote:
Originally Posted by Shreck
Even when I throw the main breaker it still will pop the CFCI but when I plug into one without a CFCI it does not trip the breaker in the house when I turn the main breaker on in the MH but it continues to run on dc. Again everything switches over like it should when plugged into a 30 amp receptacle. Thinking out load did they ever use a ATS that is designed to switch over on 30amp but not on 110?
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I must not be fully understanding what is happening there. I thought you were tripping a GFCI inside the motorhome, but that does not seem to be what you are describing now.
Where, physically, is the Ground-Fault breaker that keeps tripping? Is it inside the house or inside the motorhome?
Going back to one of the original suggestions that was offered here,
if somebody has bonded the neutral to the ground anywhere inside the motorhome, it will trip any GFCI-protected receptacle inside the house.
This will happen even if the MAIN breaker in the MH panel is OFF.
The reason it does not trip when you plug into a 30A RV receptacle is because those are typically not GFCI protected.
The only way you are going to fix this is to have an electrician go through your MH with a flashlight until he finds the place where the Neutral and Ground were incorrectly connected together. It might be in the panel, it could be in an A/C unit, or it could even be in an outlet somewhere.
Once that link is broken, your ground fault will be cleared.