Question about Dometic Rooftop RV Air Conditioner

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Airconditioner unit on my RV will not run.

The airconditioner ran great all day. I came back to ther RV and the air was off. I went to the thermostat and shut it off then put it back to air. It did not come on. I can here it click in the control box but that is it. Could it be a bad relay switch?

Thanks for your help,


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  • Nahoku66 May 11, 2009

    I have a 5 button duo therm with a gas furnace. The ac worked fine all day but would not stop cooling last night. I set the thermostat to 99 degrees and it still would not turn off. Tenperature outside was 90 degrees when i noticed the problem. The coach was like a meat locker.



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Check to see if you have the proper voltage to the air conditioner and check your breaker.The clicking you are probably hearing is the thermostat opening and closing when you turn it up or down.

Posted on Apr 20, 2009


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