Dash air intermittent

[6string]

I have a 2011 Phaeton 36 QSH. My dash air is working at times. Sometimes if I turn it off and on several times it will start working again. I have checked the fuses. Also the condensor fan runs I can hear it but no cold air. I’m thinking the compressor clutch is not engaging. Maybe open wire or bad clutch. Anyone had this problem and can shed some light on this. Also on the location of the compressor on the engine. Thanks

[6string]

In checking further I may have isolated the problem. Opened a panel in driver side rear compartment. Looking at compressor, I checkecd the voltage to it and it was good. Found after unplugging and back in several times the clutch started working and bingo,cold air. So if it comes back I’ll go straight to that connector. Thanks to all for your replies.

[garym114]

Does your control on the dash look like one of these from Evans Tempcon?
http://www.evanstempcon.com/tsg_hvac.php
trouble shooting info for your system

[ScottG]

Low charge causing evaporator to freeze up.

[fyrflie]

I have been having a similar situation with my 2001 Workhorse chassis RV.
I do know that with my system, if the Freon level is low, the compressor will not engage.
I recently had my system checked and they did add some Freon. The system worked fine all summer long.

Hope this helps.