Question about Dometic Rooftop RV Air Conditioner

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I have a 92 terry 29' camper. I accidently connected 240v to it. Funny, I Know.Now, the coleman ac/htpump does not work . Did I Ruin the unit or can it be repaired? Also the 12v capacitor is out

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It's hard to say. You should probably start by checking your transformer. I don't think line voltage goes to the control board. If your transformer is OK then check out the other components (contactors or relays). Then check the windings on the fan motors and compressor motor. Give it a good visual inspection looking for anything that looks burnt and see if anything smells burnt. One question, did you turn it on or was it done before you got that far. If you didn't turn it on then maybe you'll just be looking at a transformer and you said the capacitor was out.

Posted on May 15, 2010

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