Reversed Polarity and Open Ground
Hey all... Just got back from camping a week ago, with our trailer plugged into our surge protector after three days we got an error message of reversed polarity and an open ground. We have done s...
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We have tested using the cheap $10 outlet tester, checking using our volt meters and by also moving everything from one power supply to another. Our house is a 200amp 120 single phase service with our garage on a 200 amp 120 three phase service, thus we have two drops where we can plug in our 30A 120v service.
The surge protector does not show a problem until we plug in our trailer to the system, then it shows the "polarity reversed, open ground". We have disconnect our solar system from our trailer, tried "turning" off the trailers' panel and have not been able to chase down the issue. If we plug in a piece of shop equipment to the surge protector that is single phase 30A the surge protector does not show an error message...thus we are stumped as to where our issue lies. Probably have a short in the main power supply from the shore connector to our panel which doesn't surprise us when husband scoped inside the wall of the trailer and found a screw from the outdoor shower had been run through the main power. The manufacturer stated they fixed it last year, but now we really wonder!
The surge protector does not show a problem until we plug in our trailer to the system, then it shows the "polarity reversed, open ground". We have disconnect our solar system from our trailer, tried "turning" off the trailers' panel and have not been able to chase down the issue. If we plug in a piece of shop equipment to the surge protector that is single phase 30A the surge protector does not show an error message...thus we are stumped as to where our issue lies. Probably have a short in the main power supply from the shore connector to our panel which doesn't surprise us when husband scoped inside the wall of the trailer and found a screw from the outdoor shower had been run through the main power. The manufacturer stated they fixed it last year, but now we really wonder!
