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Customer Questions and Answers for Evaporator Fan Motor by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM21644163
Manufacturer Part Number: W11671461

This evaporator fan motor circulates cold air across the evaporator coils and throughout the fresh food and freezer compartments. Replacing a weak or failed motor restores proper airflow for consistent cooling and ice production.

  • Moves air over the evaporator to maintain even temperatures
  • Common failure signs: freezer getting warm, fridge section not cooling well, weak or no airflow from vents, intermittent humming or squealing, motor not running
  • May help resolve frost buildup around the evaporator due to poor airflow
  • Electrical component; match connectors and orientation during install
What's included: Evaporator fan motor only Install notes:
  • Unplug refrigerator before service; wear cut-resistant gloves
  • Access from the rear of the freezer/evaporator cover; remove shelves/panels as needed
  • Transfer any mounting hardware, grommets, or fan blade from the original if not reusable
  • Ensure fan spins freely and blade is correctly oriented before reassembly

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$116.64
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Questions & Answers

For Whirlpool Evaporator Fan Motor (Part Number: OEM21644163)

1 Answer

Melih, I would suspect when you disconnect the fan your 12 VDC would return. If you supply 12 VDC and the fan will not run then the fan would need to be replaced. With the fan disconnected make sure the voltage supply is there.

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1 Answer

Melih, the evaporator fan motor W11671461 would be tested from the white wire to the red wire for 12 VDC using a multimeter. If there is voltage and the fan does not operate, the motor would need to be replaced.

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Helen D for Model Number KSCS23FVMS01

My refrigerator is making a chirping noise intermittently with the fan at the back of the freezer. Both the freezer and fridge are keeping good temperatures, but this noise sounds like something is getting worn out and may fail; ie it sounds like the fan in the back of the freezer is in distress. Occasionally there is a high pitched noise that sounds like a dentist drill that lasts for about 15 seconds; it is related to the same problem. I was wondering if it is the evaporator fan/motor that needs to be replaced. Please advise. Helen

1 Answer

Helen D, This does sound as if the evaporator fan motor would be the issue, the part number for it is W11671461 part link: https://www.appliancepartspros.com/whirlpool-motor-evap-w10822580-ap5985210.html

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1 Answer

Hello Joseph, if the noise is from the freezer fan motor when it is running it is likely just worn, in that case, the fan motor is part W11671461, the fan blade is part WP2169142 or if you want the motor and blade mounted in the housing as an assembly is part W10856615, unfortunately there is no repair video showing this part in your model being replaced.

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1 Answer

Hello Joe, actually, your temps are in range, on this model the freezer temp when set for 0 deg can normally vary between 0 and -14 deg, the variance is set by the main control based on certain conditions. The fresh food temp is normally set for 37-38 deg. If you are getting freezing on fresh food items and tried raising the fresh food temp slightly, please repost your question as to where in the fresh food section the feezing is occurring.

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1 Answer

John, You will want to test yellow to white wire and the motor should run. You will want to check to see if there is 12 vdc getting to the motor and if there is not then the control board will be the issue and if there is then the motor is bad.

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1 Answer

Hello Tony. Check and see if the shaft is binding up on the motor. It should run if the voltage is there unless you received a bad fan motor.

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1 Answer

Hello Karen, This issue is going to be caused by one of the control boards. You will need a dc volt meter to determine which board is at fault. You will need to go to the WP2318054 control board. Find connector P2 and test the dc voltage from terminal 8 to terminal 9, (both on connector P2). If the reading is 17Vdc, the problem is in the board you are testing on (the manufacturer refers to this as the Niagra board). If the voltage is not there, the problem is in the other board W10219462, (referred to by the manufacturer as the Gemini board).

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