reverse polarity

During a recent survey, I received the following finding on my 2002 Hunter 356, "Under Generator power, every outlet shows reverse polarity. Ground neutral voltage is up around 31 volts. When the generator selector (circuit breaker) at the switch board is engaged the neutral and busses are...

hi, I own a Hunter H320 2001. I have the reverse polarity light going on only when I turn my water heater on. I did all the tests recommended by Nigel Calder and all passed. I notice between the white and ground 11vac when I turn the water heater on.. the ac voltage also drop from 116 to 106...

Does anyone have an idea what's happening here. When I plug into shore power the breaker on shore trips immediately this is with the main A/C breaker on the boat in the off position. After checking all wires back to the panel for faults I found that when I disconnect the Promariner Prosafe A/C...