Question about Goodman CKL42AR42 Air Conditioner

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Problem with fan spinning on an outside unit. It is humming, not turning.

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Only two possibilities. Check the fan motor for bearing play. If the shaft moves side to side or the motor is hard to spin then it is time for a new motor (note being able to wiggle the shaft in and out of the motor is normal, even new motors will do this). Other possibility is the run capacitor for the fan. Usually in a/c's they use a dual run capacitor for the fan and the compressor. this will usually be a grey or silver, round or oval cylinder with either two or three terminals on it. If there are three terminals, they will be marked, (C, HERM, and FAN) mark all wires to make sure that they make it back to the same terminal on the new capacitor. If there are only two terminals then it doesn't matter which wire goes to what terminal, but if there are multiple wires going to a terminal, those wires must be kept together on the same terminal. NOTE: the capacitor will need to be purchased from a HVAC service dealer or some place like W.W. Grainger or Johnstone Supply (these are wholsalers and you will need a business afilliation to purchase).

Posted on Jun 18, 2008

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