Originally Posted by halfprice
Mine is wired "backwards" also but I've never had a problem.
I called the bim manufacturer and asked them after talking to a member that switched his bim connection.
The tech said on gas model mh it can be connected either way and it wouldnt make a difference.
Not saying it didn't fix the problems some had but wonder if there was something else wrong that was fixed by the switch
I spoke with Precision also and the tech told me the same thing, it doesn’t matter which post you connect the cables to. Yet after I switched the cable connections everything is now working as advertised and I can hear the relays click. Before that, none of the relays clicked and hence, the coach batteries would not charge from the engine and the chassis battery would not charge from shore or the generator.