Question about Coleman Mach 15 Air Conditioner

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Coleman mach 8333 series won't run. both compressor and blower inop. checked power in 120v,checked blower switch and therm. both are working. what next?

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Check the capacitor. You probably have one capacitor that controls both the compressor and fan. If that isn't it, check the contactor and make sure that it pulls in when the thermostat calls for the A/C to come on. Also check the voltage on the line side and load side of the contactor. I have seen some with voltage on the line side but it wasn't making it to the load side.

Posted on Sep 05, 2010

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Hi, if you are energizing the contacts on the contactor, and the compressor runs, the thermostat is faulty. This is what energizes the contactor coil that you have. You need to check to see if you have voltage to the coil on the contactor. You need to replace the stat asap.
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It is definitely with the compressor. It should more like you may have a weak winding in the compressor, you can a hard start capacitor (sp5 ) that will help the compressor on restart. Note that this is a last chance solution for a compressor.








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I changed out the startup and run capacitors. A/C runs fine now

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