Question about Coleman Mach 15 Air Conditioner

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RV A/C fan won't start on its own

I have a Coleman Mach 8333B series RV AC whose fan won't start on its own, I have to give it a spin to start it. Only has two capacitors. From my research I find that one is a run capacitor (connected to the compressor) and the other is a fan capacitor. Is the fan capacitor causing this problem? Should I replace it?

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  • cdoug Jul 10, 2008

    I also have that problem. I start my fan on low, I can hear the sound it wants to go, but it does not run. Then I spun the fan and then it worked. I think it might be the fan or like the other guy said it might be a bearing. Any suggestion?

  • Anonymous Apr 22, 2009

    Mine does the same thing, it'll "hum" when you turn it on, but you have to spin it to get it to run. My fan motor turns freely, so it's not the bearings. Mine has a fan start capacitor, so I figure that's the problem. I'll replace it and see.

  • Anonymous Mar 12, 2014

    I have a Fujitsu AOT24 (rest is illegible) that has had the compressor run capacitor replaced before I owned it. The wiring has overheated and I have repaired and tested it with a 35uF run capacitor. It worked OK, but I would like to confirm the rated capacitance of the capacitor.

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This could be the problem. It is more likely that the motor bearing is bad. Take the fan capacitor and have it tested. Or replace it, (under $20). Was the fan motor loud before this happened? Hopefully it is just the capacitor, the motor runs $60 - $100 and is a FUN to replace.

Posted on Jul 04, 2008

The fan starter capacitor is the problem.
It is a mallory 75 -105 uf 130 vac
Can be found at most plumbing and heating repair center or rv store

Posted on Jul 26, 2008

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