I have a 1998 Residency by Thor. The roof air forward unit runs 24/7 (in Arizona). It runs cold then warm, then cold then warm. Turning it off does not change anything. The aft unit runs (on then off ...
The condenser coil on the roof my need to be cleaned. A dirty condenser will cause high compressor discharge pressure. High discharge pressure will cause the compressor thermal overload to trip and shut down the compressor which will stop the unit from cooling until the overload switch automatically resets.