I pulled our 210WBS onto the drive and opened the slide w/electric switch. After we cleaned the unit and wanted to close it. There was no power to the trailer. I checked and the garage GFI had shut off. Plugging it in did nothing. Switched all circuit breakers in the camper OFF. Plugged in and the GFI held. Turned on the circuits one by one. The trailer GFI triggered the garage GFI and the AC circuit breaker tripped it as well. As it is nothing works in the unit. Power come sin as the microwave lights come on. I adjusated the battery disconnect when I set up, but adjusting it now makes no impact.
sounds similar to the problem I had with my FF-189 on my first camping trip. Turns out the wiring to the trailer GFI was loose. Check the connections. sorry I can't be more specific. I was under warranty and the dealer fixed it.
2009 FF X-189 FDS
2011 Chevrolet Z-71 LTZ 4X4 p/u.
Reese WD hitch
Patient and understanding wife