Weird electrical problems, thought I'd ask first before getting in over my head

[steved28]

Ok, not sure if you have the same power management system as my Winnebago, (precision circuits) but in my system, if the power demand exceeds the power source a few things can happen.
1. It tries to get the additional amps needed from the inverter and batteries.
2. It begins an orderly shutdown of some circuits.
I have never had my system trip a breaker. It sheds the loads first.

Usually it kills the A/C - Heat pump first. They will come on again when the demand goes below the source again.

If you have this type of management system, it is pretty clear on the displays when it goes into "borrow from the inverter" mode or shuts down a circuit.

[ldfeat]

Off the cuff, sounds like the coach is running on the inverter and using up the available battery voltage and as the batteries get weaker, the inverter cuts off?? Larry, 2014 Reyo P.