Question about Dometic Rooftop RV Air Conditioner

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I turned on my roof top Duo Therm a/c unit on my camper trailer. I had a tarp on top and I forgot to remove this before statting unit. It cooled for a few minutes then I heard a pop and the a/c stopped blowing cold. The fan still blows? Is there a rest button or a breaker, where are thsese located.Thanks

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  • lupe_cruz Oct 06, 2010

    where are these located on the a/c unit. capacitor and or breaker

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I will explain:- When the Ac fan is working properly But unit still does not blow cold air , then the problem can be any of the 3 things given below :--
1)low freon in compresser 2)capacitor pops and blows out 3)compresser itself goes faulty
Possibility number 1 does not apply for your problem as you said the unit was working properly till now and suddenly stopped blowing cold air. So in your case it can be any of other 2 issues mentioned above.
The first thing you need to check is the capacitor in the outside unit. Look at the top of it and see if its bubbled up(bulged up) any. If so, replace it and that may solve it. If it looks normal, (no bulged top) you need to purchase a hard start kit. They are 2 wires and hook up on the run capacitor and it gives the compressor a jump start. If that doesnt work, you need to replace the compressor.

Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Oct 06, 2010

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It seems that the pop sound was bursting a capacitor or some such thing in the circuit. No resetting will help. What will help is replacing this blown item. It happened to due to excessive heat trapped inside the tarp.

Posted on Oct 06, 2010

  • Rinoo Kumari Oct 06, 2010

    On the electrical motor. A small cylindrical object.

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c. Connect the “YELLOW” wire from the air conditioner
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