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I have a coleman/evcon heat pump. When the thermostat kicks on the contacts kick in and hum but the compressor nor the fan run. Is this probably my capacitor has gone bad?

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I would check the hig voltage power supply to the unit. Check the main breaker and make sure it is on. Check the disconnect and make sure there is power at that point to the condensing unit. The contactor will kick in from the low voltage in the control circuit.

Posted on Jul 11, 2008

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