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I have a 13500 Dometic roof mounted ducted AC on my motorhome. I have changed the Board twice and the thermostat once and the same problem occures. When you first put the AC on it works fine until it goes to recycle and it kicks off and will not come back on until it deceides to. It might be a hour or several hours. Then when it kicks off it does the same thing. We have checked everything and nothing on the unit is getting hot or is burned. Please help.

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May need start capacitor and relay (called start kit) or some of the compressors have a thermal overload under the compressor cap. If it's a thermal overload, it has a bimetal disc and when it reaches a set temperature (hot) the disc will warp opening the compressor circuit and not allowing the compressor to come on till it has cooled down. if this is the case then the compressor is not getting enough refrigerant back to it to keep it cool or it's drawing high amps.

Posted on Mar 17, 2009

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