I have a 2015 Bighorn 3750FL and the rear air conditioner in the bedroom is not working. Is there a separate circuit breaker or fuse for this unit? It is a Dometic. The thermostat does not light up and it appears there is no power to the unit. I swapped the thermostat with the one in the front and it works fine. I went on the roof and took the thermostat with me and hooked it up to bypass the phone cord and it still did not work. I took the electronic control board out of the roof unit and moved it to the front air conditioner and it works fine. I took the one from the front and moved it to the back and still nothing. I checked all the circuit breakers and fuses and then I found another set of fuses behind the kitchen drawers that have no labels on them. I checked all those too and they are good. The only thing it can figure out is there must be a separate fuse or circuit breaker somewhere else that I am not aware of.