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Carrier Infinity DC motor drive problems

I have a new Carrier super high effeciency furnace, AC and PLC digital thermostat. New under warrenty. The CD motor drive starts cycling the motor 150 to 300 rpm in 2 to 3 second intervals until I turn off power and reset system. It will run anywhere from 1 hors to 3 months with no problems and then start doiong this again. Help[? EVAP CD6AXCo48021ABAA Furnace 58MVP120 AC cond 38TZA042331 Infinity digital thermostat software version CESR131339-05 Thanks.

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Contact the company that installed the unit. Its new, under warranty, Anything you do could void the warranty. If they do not take care of the problem without charges contact Carrier and tell them what's going on. The company who installed the unit is responsible for making it run correctly. Good luck. kstfas

Posted on Aug 27, 2007

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