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My compressor wont kick on since lastnite. Whats wrong?

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Is this a split system or a wall unit. If it is a split system, is the outdoor fan running? If it isn't, check the fuses or disconnect first. If that's good, set the thermostat to make the air come on then remove the cover where the power goes into the outside unit and see if the contactor is pulled in. Next, check voltage on the primary and secondary side of the contactor and make sure it is getting power. If the outdoor fan is running then the problem may be just your capacitor. You can check it with a multimeter or take it to a heating and air supply and they can check it. If the capacitor is good then check the compressor motor windings. Let me know what you find and I can give more suggestions. There are a lot of possibilites but these are some common ones.

Posted on Aug 31, 2010

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