The problem progressed to no power either on shore power or generator. Called Thor and they went thru a check list but ended up with no answers. Called a Mobil tech who is here in the park and he traced it to the transfer switch. Thor sent him an electrical diagram which showed that the switch was on the outer wall by the heater. He removed the heater and pulled out the switch - the neutral wire insulation was burned about two inches above the connection and there were scorch marks on the top of the switch case. He reconnected bypassing the switch. New one ordered from PPL and installed. All’s well now. So even though I was on shore power the switch affected my coach electricity because it also modulates(?) the neutral connection. If you’re in the Rio Grande Valley I’d definitely recommend Fair RV Inspection, Tim Fairchild: 712/299-5112
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