Do you have 12.6V+ DC to the A/Cs and the thermostat? Both of our rigs use DC to control the A/Cs etc. Do you have AC on both legs of the 50A circuit to the CB panel? Is the load shedding working OK?
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland
Bob