Hello! I'm new to this forum. I have a livinlite 10.0 camper. When I plug the camper in to a GFCI power source, the circuit trips off. The power cord to the external plug is fine, it only trips when I plug the female end into the camper. I tried shutting off both circuit breakers (15 amp and 20 amp) and pulling out the three 15 amp circuit plugs, and the circuit still trips. Any ideas?