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Old capassitor has 3 prongs new capassitor has 2 prongs

Hi,We purchased a new motor for our Miller AC system from Lowrys Hardware. The guy said the new motor we got MODEL # CK48VS21K96 would work on our system. The problem is that the old capassitor has 3 prongs and the new capassitor only has 2 prong. What to do? Desperate and hot in Arizona.

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The old motor relied on a leg off of the ol cap marked FAN. No need to bother with it anymore because the new motor probably has a different cap rating therefore it needs its own wittle capacitor. Cute ain't it? That new motor will probably have a common wire to connect to that Old cap at the C mark on it though. It will have 2 brown wires to connect to that new cap for it. (insulate that cute little cap to prevent any shocktastrophies) The black wire will of couse go to wher the old one did on the contactor. Read a little ditty I affectionatly wrote for further info entitled 'old motor had 3 wires new motor has 4 WTF"

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Posted on Jun 06, 2009

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The motor should have a wiring diagram,and specifications on the motor.The three prong capacitor went with your old motor,and will probably have to be replaced with the size capacitor listed on your new motor.It will probably be a capacitor start motor so you will need an electrolytic capacitor that comes in the metal can.Your old motor was probably a capacitor start/run motor.That makes it a stronger starting,and running motor.The capacitor start motor is a stronger starting motor.

Posted on Jun 06, 2009

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