Yahoo Message Number: 5926 (http://groups.yahoo.com/neo/groups/Country-Coach-Owners/conversations/messages/5926)
We've been having strange battery charging problems ever since we bought our coach (Sept 2002). The main problem was that when parked for a few days the chassis battery would discharge even though shore power was attached.
To make a long story short, the Echo charger chassis battery and house battery leads were reversed - probably at the factory. Reversing the two wires seems to have solved several annoying 12 volt electrical anomalies.
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Tom Harsch '02 Allure #30791