Question about Dometic Rooftop RV Air Conditioner

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Tripping circuit breaker

Hi - I have a duotherm brisk air unit that is tripping the circuit breaker. If I start running it in the morning it will go for a few hours until the outside temperature gets hot before it trips the breaker. If I don't start it until I need it (like 2pm) than it will only run for a few minutes than trip the breaker. I'm running off a generator and I can hear the ac system put a load on the generator right before it trips. Someone told me I needed to recharge the unit using a tap and R22, but I'm not having any luck finding either the tap or the freon. Any help is much appreciated. Thanks!

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  • susie tools Apr 21, 2009

    Thanks for the quick response. I tried to post this yesterday, but it didn't work??



    The generator is a Honda EV4010, 120 volt, 33.5 amp. Not sure how to answer the other questions. I don't think the generator is the problem though because it does the same thing when plugged into house power. I will check on the condensor fan motor. I called dometic yesterday right after I posted my problem and they said the unit can't be recharged and condensor can't be replaced...the whole unit gets replaced. Seems kinda wasteful.

    Thanks!

    Susie

  • steve
    steve May 11, 2010

    What size generator? Peak amps, run amps. What amp draw is the ac rated for?

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Replace the start/run capacitor and try it again. If that does not correct the problem you have a bad compressor.

Posted on Apr 21, 2009

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You probably have a dirty condenser coil or the con den ser fan motor is bad or the blades are jam that's why it overheat and shut off by overload.

Posted on Apr 21, 2009

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