Hello All, Newbe here. As the title states my air cond will not run, had it going once and shut it down but it will not come back on. Its a older Mallard 5th wheel camper, the air cond. is a DuoTherm model 58915.302 with a Dometic 3109228.001 model thermostat. When it was running it worked good and throwing plenty of cold air, now i cant even get the thermostat to power up, could it be a bad thermostat? It has like a phone cord plugged into it and runs to top of air cond. Are these thermostats noted for going bad? Any trouble shooting tips would be very helpful.