I own a 06 jayco jay feather 27 w/ Coleman Mach 3 ac. I removed the water heater and furnace and now I don't have 12 volts to my thermostat. Have a feeling the 12 volts comes off the heater wire in some way..........Help
My thermostat is fed 12v pos by the furnace. When I lost voltage to my thermostat, it took me a long time but found there's a reset switch on Atwood furnaces. If you have an Atwood, look for the switch where the wires feed into the furnace.