Have a 1985 Sovereign
with original Univolt, new 12 V Battery. Up until recently, when plugged into shore A/C power, all 12V
DC lights and equipment worked and the battery stayed charged. Now, when plugged into Shore A/C, all 12V
DC lights and equipment work but the battery doesn't charge and slowly runs down to where none of the lights or equipment work. If I connect my trailer to tow vehicle electric cable to the tow vehicle with shore cable plugged in to shore power, the battery charges fine and all 12V
DC lights and equipment work.
All connections on the 12 V power panel are tight. So I am assuming that perhaps the Univolt 12 V charger is not working?
How can I trouble shoot to isolate the problem? If, indeed it is the Univolt, is it possible to repair or do I just replace?