Question about Dometic Rooftop RV Air Conditioner

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Duo-therm a/c we just turned on travel trailer a/c it makes a loud rumbling sound whole unit shakes roof. It was working fine 2 months ago when we used it. Any answers

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  • Anonymous Mar 24, 2014

    Just bought trailer. Tried ac unit at old owners house and worked fine . Get home turn on ac and all it does is makes a sounds like a motor has locked up. Trailer is on 2 ext. cords both #10s . Circuit at house is 15 amp. Older model of trailer. Do i need a 30 or 40 amp service to make this ac unit work?

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We had this issue also and dirt daubers had built a nest on the end of the fan blade

Posted on Aug 11, 2008

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Yes I'd be leaning toward mud wasp nests too.

Posted on Aug 14, 2008

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Fan blade or bearing on motor are bad.

Posted on Aug 07, 2008

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