Question about Carrier 38CKC042 Air Conditioner

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Fan motor runs backwards

I have a Carrier Infinity heat pump. The dual speed fan motor went out. The dealer came and replaced the motor and it the unit did not work so they replaced the circuit board. The new fan ran backwards. They ordered another fan and replaced it and that one ran backwards. When it runs backwards there is no suction in where the filters are and the unit freezes up.

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  • 674 Answers

Make sure the capacitor is connected to the start lead, not the run lead(s). Also some fans come with some wires you can switch to reverse the direction. If your motor has them there will be 4 and the label on the motor will tell you how to connect them. Let me know if you need more assistance or if this helps.

Posted on Jun 03, 2010

  • showandtrail Feb 15, 2011

    Hi, I have the same problem. I just replaced my motor and it runs backwards. On the wiring dig on the motor it shows the two wires black and yellow as both being line. The black one connected to the relay runs the motor backwards. I didn't think it mattered on the cap but should i reverse them. (Brown and Brown and white) They are in the right plugs on the cap. I tried the yellow wire to the relay and the fuse blew. Any Ideas? thanks.

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MODEL # CARRIER 38XD124300


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