Just returned from a working trip to Missouri. Took MH, wife & pooch (Siberian Husky).
On Thursday when I returned, wife said dog was acting strange and didn't want to climb steps to RV. Said he had put his foot on the step and jumped back yelping.
Investigations revealed the whole chassis at 120V
Problem was traced back to the inverter. A wire nut connecting the output wires together had melted and the internal coiled part exposed and touching the case. I'm still unsure why it had not tripped a breaker except that it was a 'dirty' contact and not passing enough current to trip anything. Replaced wire nut and all is good again.
We had been using an electric heater in lieu of the gas furnace and it seems this was too much for the connection.