Question about Dometic Rooftop RV Air Conditioner

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Dometic Rooftop Air Conditioner

The compresser for the A/C unit will come on.When you turn on the fan at the thermostat it blows the 3amp fuse in the A/C circuit board.Is the circuit board bad or is it the fan motor?

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  • grandstar Feb 04, 2009

    ours is the same thing, we spent 600.00 yesterday to have the problem diagnosed... They are saying it was a power surge.. and ironic this 'power surge' happened when we were dry camped. We had the relay checked, it was good, So 600.00 later it's still broken and they say now it needs a Circuit board for the front ac/heat pump as the power surge blew it

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Soiund like a relay going out or a shorted wire.

Posted on Dec 21, 2008

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