Question about Dometic Rooftop RV Air Conditioner

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Compressor on ac unit

I have a new 2009 5th wheel, 1 week old. It has a Dometic AC Unit on it.When running unit for entended time the compressor will not shut down. The throstat will shut the fan off. but not the compressor. I have to go to the main breaker to shut the compressor off, after 1-2 hour of the breaker being switched off the compressor with start working properly. This has happened 3 time this past week.

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  • Kim Boening
    Kim Boening Jul 16, 2008

    our ac is doing the same thing we took it in to camperworld and they changed out the lower board they said but it still did it .the compresser comes on even when the ac is off at the thermostat and when on it cycle's off we have to flip the breaker to get the compresser to shut off we took it in and they said we cant fix what we cant get to do for us

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We have the same problem but it wont dupicate when take it in to be checked replaced lower board but didnot help

Posted on Jul 16, 2008

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It could be a relay for the compressor is sticking in the run position.
If it is only about one week old take it back to the dealer for service or call them and tell them your problem. This should be covered by warranty and the dealer can refer you to someone authorized to do the work.

Posted on Jul 08, 2008

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