I spoke too soon. This morning I plugged the Bigfoot back in. The microwave lights came on and I threw the battery isolator to "use". Then a couple minutes later I was walking by the fridge vent and heard the ignitor going off, then the burner kick on. Then I went and sat in the garage a bit and thought about it. Why did the fridge go to propane? I thought it defaulted to AC. Checked the GFI and yep it tripped.
Scratched my head a bit and remembered the attached threads from earlier. So I took the bottom vent cover off the fridge, all looked well except a dirt dobber and a wasp nest. So I unplugged the fridge. Plugged the extension cord back in and turned the fridge on.
If it works good on gas I'm OK with that for now. I'm trying to get to the sprint car nationals in Charlotte in a few weeks and don't have hook ups any way. May drive back home through the Smokies.
Just looking behind the fridge I saw no burned wires or any other damage.
AC heater circuit burned up and shorted?