Originally Posted by CWG
The front AC in my 340 RKC will not turn off without shutting down the breaker. Obviously FR are have issues with this set up.
It's actually not FR's problem, though they have some culpability because they install the units. It's Dometic's problem.
There have been a few reports of the A/C units with the digital thermostat not shutting down. If I remember it's been the control board in most all the cases.
Just for fun, have you tried initializing the thermostat to see if that helped?