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Old 07-24-2010, 11:56 AM
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It sounds to me like you've lost your refrigerant . Even when your refrigerant is gone the a/c compressor will still come on in the "defrost mode" . In the a/c mode , it will not . The refrigerant is what carries the oil through out the system . So if theres no oil being carried through out the system when in defrost mode things are getting damaged due to lack of oil . Make sure the compressor is ok before you do anything . It's best when you know you have a freon leak to just unplug the compressor so you don't ruin it .
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