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Customer Questions and Answers for Dryer Thermister by Whirlpool

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    • Part Number: AP3919451
    • MFG Part Number: 8577274
    • Made by: Whirlpool
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For Whirlpool Dryer Thermister (Part Number: AP3919451)

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The dryer blinks AF and has a clicking noise then if you push the pause button then start again it sometimes works. The dryer gets hot but does not blow the hot air out of the vent. I have checked the vents and they are clear but when I put my hand against the back of the dryer I dont feel any air coming out when its running., ALso the timer sometimes doesnt go down or will go from 30 mins to 45 mins.

Jeff for Model Number WED7300XW0

ANSWER Hello Jeff. The pulley 8544739 for the blower wheel may be off. Unplug dryer or disconnect the power. Remove front panel and lint chute. Remove the blower pulley completely from the bearing shaft (if not already disengaged). Apply a coating of medium strength thread lock 4210460 to the entire length of threads on the blower shaft. Use a crescent wrench or 1 1/8” open end wrench on the pulley nut and a ½ square drive ratchet to hold the blower wheel and tighten. Note: If a torque wrench is available, the torque specification is 120 in. lbs. or 10 ft. lbs. Install belt and check. Note: The belt should not touch the tab on the blower housing. Install all panels and screws. Plug in dryer or connect power. Operate the dryer and check operation. 

Answered by AppliancePartsPros.com   |   Monday, April 01, 2013

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