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Nordyne P3RD-036k starts but the cooling cycles on/off and hums. It gets better after a while. Inspection of electrical board appears theres been arcing on what I think is the contactor

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Not quite understanding. So the short cycling goes away after it runs for awhile??? If that's the case I'm assuming you have some loose wiring. Turn power off and check ALL electrical connections. The contactor would not be right on the board so I'm a bit confused. Good Luck!!

Posted on Apr 30, 2017

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Posted on Jan 02, 2017

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