Dometic AC Problem

[Pierman]

I have a 2006 Keystone Cougar 5th Wheel. The roof top AC is controlled by a remote thermostat. It will not operate correctly, in fact it will not do anything. I changed the batteries. The AC runs fine but will not cycle off. I left it on to see what would happen and it went down to 56 degrees in the camper. I can turn the AC off with the manual button on the cieling. What could be wrong.

["007"]

Welcome Pierman to irv2.
The control you have can you select a front and rear AC. You will do this by selecting the MODE and ZONE 1 front AC or 2 rear AC than set you temperature.
The temp in front has sensor in control unit and bedroom will have a sensor mounted on wall somewhere it will have a white cage over it size of a quarter.