Question about Dometic Rooftop RV Air Conditioner

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Duo-them 15000 BTU roof air

Unit wont stop cooling I thought themostat was bad so changed Same problem. It will only cut off when I raise the themostat setting to the very top.

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  • bigcbernard Aug 25, 2008

    Wall themostat that was change and have same results.

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  • Dometic Master
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Is this a non-ducted system with dials to turn on it, or is it controlled by a wall thermostat ?

Posted on Aug 23, 2008

  • Mike Butler
    Mike Butler Aug 25, 2008

    Are you sure all the wires are where they are supposed to be on the thermostat ? I hate to ask this but have to, do you actually know by sound difference when your compressor kicks on & off ?When you say it won't stop cooling, do you know for sure the compressor is still working & fan is still blowing. The reason I ask is that some will continue to circulate the air, like it is still cooling, but the actual compressor has kicked off, and will kick back in when indoor temperature setting requires it to. Others will shutdown completely, compressor & fan, when it reaches desired temperature, and re-start when room reaches set temperature. Have you owned this RV long enough to know that the AC did actually work that way at one time? Perhaps if you can give me a model # on your AC unit, and thermostat, it would help me determine what's going on. Thanks

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