Hello, just introducing myself. I just found this forum when looking for solutions to my electrical issues. I have a 37 ft vista. My 50 amp breaker tripped when I turned on both my heat pumps. My GFI is also now not working. I can't get it to reset. I read that the inverter may have a gfi tripped. Where might I find that? Also, why does my 30amp work, but not 50amp?