Dometic thermostat malfunction.
This is on a Winnebago 5th wheel.This thermostat can be set to one, two or both ac's.Both units work fine,fan,compressor, but the inside temp setting on the thermostat for the 2nd ac is now starting t...
Forum Discussion
We had this same issue on our bedroom AC unit when we went to do the PDI on our trailer. Inside temp was reading way low and the AC would not function correctly. It turned out to be a defective thermister (temp sensor) on the bedroom AC unit. Our thermostat controls both zones and the living room was functioning fine. They replaced the thermostat first and that did not fix it. They replaced the wire from the AC down to where the sensor mounts and that did the trick.
