Question about Dometic Rooftop RV Air Conditioner

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Compressor will not come on. Fan runs great.

I have a Coleman mach AC unit on my RV I can here the thermostat click but the compressor will not come on. The fan works fine. When I stopped using it last year it worked great.

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  • jump4joy May 18, 2009

    Fan runs on ac but the compressor will not come on.

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I fixed it. I had a dirty connection on the starter relay for the compressor. Thanks again for the help.

Posted on May 18, 2009

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Most likely you have a small small refrigerant leak and the low suction safety switch is not allowing the compressor to run. Several other possibilities but without a wiring diagram it's hard to tell!!

Posted on May 17, 2009

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