The Comfort Control is programed for each coaches configuration with dip switches in the units (some have two furnaces, some only one, some have AC Heat Pumps, some have just ACs and some have it all. I had a problem, and the solution after a new thermostat and many attempts to fix, ended up being wrongly set dip switches. There is a procedure for resetting/retraining the comfort center. A small prior stroke, prevents me from remembering the procedure. Call Dometic and ask them the reset/retrain procedure. I do remember that is involves pushing two buttons at the same time while turning on and off the thermostat. Hope this helps.
2005 Safari Cheetah 38PDQ - 2009 Ford Flex
Me (Gatogonow), The Boss (DW), Honey Bunny, Maggie May and Mollie Kay (The Gatos)!