New contactor and capacitor a/c not working.


Old 07-29-17, 07:23 PM
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It buzzes. Since it is an electromagnet it didn't seem out of place. The older one and new one both did/do, so assume that is normal.
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Old 07-29-17, 07:39 PM
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That is not normal to buzz like that. Certainly not loud enough to prevent you from even being able to tell if the compressor is running
Old 07-30-17, 03:42 PM
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Buzzing is from compressor so it seems like it is powering on.
Old 07-30-17, 03:48 PM
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If the compressor was trying to start..... and it couldn't.... it would hum loudly for several seconds/minutes and then shut down on overheat.

If the compressor is sitting there buzzing.... I'd say it's running. If the large insulated copper line at the back of the condensor doesn't get cold..... then it's time to call in a tech.

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