[hiccup]

I just found my problem, on my 1986 31', it was the reverse polarity indicator. I removed the connector, from the sensor to neutral, and the problem went away. What I can't figure out, is when I test the two sensor leads, they are open. Going to try and find a new one, hopefully Tiara can direct me.

That's a new one!  It may be that the neutral wire to the indicator is somehow making connection with the panel itself, which is likely grounded.  Just a thought.