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twistedsistersr's avatar
twistedsistersr
Explorer
Sep 29, 2014

chasis battery not charging; house battery cooked

1987 Holiday Rambler Class C - not in working condition when we got it. This was the first trip more than 30 minutes away - long enough for things to heat up. Starting point: New convertor with ch...
DrewE's avatar
DrewE
Explorer III
Sep 29, 2014
I wonder if somehow the alternator's regulator is sensing the chassis battery voltage but the output is going to the house battery—due to incorrect isolator wiring or stuck isolator contacts etc.? It seems strange that if it's just the alternator that's bad that it would selectively undercharge one battery and overcharge the other.

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