I have a '58 Shasta trailer. When I am plugging it into my home outlet the breaker in the camper trips. It has worked countless times before and now it is NOT able to work. I am trying to renovate and am NOT an electrical expert. It had worked in NON GFI outlets but NOT in GFI (would trip outlet) does this mean there is a ground issue? I have rewired from plug-in to breaker box and I have nothing. I have nothing plugged in and I have even disconnected the refrigerator so it does not attempt to kick on. What do I do now. I do NOT want to rip apart all that I have done already

With power off, measure resistance between Hot in Trailer to Ground, and measure resistance between Neutral and ground, Both should be zero. If neutral is tied to ground in trailer, it will trip.