The comfort controller in ths living room has stopped working. Yesterday it was working fine and I shut it off as we were going about 300 miles down the road. When got set up again, the controller wouldn't work. The mode button will only show OFF, COOL, and FAN. The controller in the bedroom works just fine It is a five button controller and should show OFF, COOL, HEAT PUMP, FURNACE/AQUA HOT and FAN. Appreciate any help. Bill M 2003 Contessa