Originally Posted by BW_LandYacht36MH
Does any one know what might be the problem?
On the earlier MoHo's with twin ceiling AC's the genny output was split with 2 AC circuits - one for the "main" selector switch and the other dedicated to the rear AC only....
I would first check the output at the generator of the secondary leg and proceed from there - no voltage at the output of the generator it is a generator related problem (there should be a circuit breaker mounted on the generator for both the main and secondary circuit). If you have voltage at the circuit breaker of the secondary circuit at the generator, trace out the output from the secondary generator circuit to the AC - there should be an "isolator switch" that allows the rear AC to operate independant of the "main" switch.
You should be able to follow the circuit with the electrical diagram suppllied in your owners manual.
On the "Classics" the "isolator" switch is mounted on the cabin side of he generator housing.