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Customer Questions and Answers for Diffuser (Refrigerator Air Damper) by Whirlpool

4.89 (64)
By: Whirlpool
Part Number: OEM18103569
Manufacturer Part Number: W10899382

This diffuser—often called the refrigerator air damper—controls how much cold air flows from the freezer into the fresh food compartment. Replacing a worn diffuser helps restore even cooling and more stable temperatures throughout the refrigerator. What it does:

  • Opens and closes to regulate airflow from the freezer to the refrigerator
  • Helps maintain set temperatures and reduce warm spots or over-cooling
  • Common symptoms: fresh food too warm while freezer is OK, food freezing on shelves, weak airflow from upper vents, or clicking/buzzing from the diffuser area
  • Helps address frost or condensation near the diffuser outlet
What's included:
  • 1 diffuser
Install notes:
  • Disconnect power before servicing
  • Access from the refrigerator section; remove shelves/air duct covers as needed
  • Note wiring and orientation; remove mounting screws/clips and transfer any seals/insulation if present
  • After installation, restore power and allow up to 24 hours for temperatures to stabilize

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$115.95
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Questions & Answers

For Whirlpool Diffuser (Refrigerator Air Damper) (Part Number: OEM18103569)

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Mike for Model Number 10359976801

you recently answered a person named mando about his problems with possibly clearing a vent iced up, how can this be done when the vent is not removable ? it sounds like my fridge cause I to don't get any air unless the freezer door is opened plus the Diffuser door was loaded with ice I removed the diffuser and thawed it out,but when I plugged it in, the door still didn't open so could it also be bad the diffuser I mean.I hope you can help cause you guys are my only hope

Answer

Mike, Yes, the diffuser W10899382 is the most likely issue. In most cases, you can access and remove the assembly from the refrigerator compartment wall, but you may also need to remove the upper portion of the freezer compartment evaporator cover and ice maker assembly, and press in on the retainer tabs and push the diffuser out and into the refrigerator compartment. The important thing is to find out where the air leak is, if there is one. Make sure both doors close and seal properly, all the way around the door(s). Make sure the lights go out when the door is closed, and the dispenser flapper closes and seals. If all's OK, replace the diffuser, and make sure you install the thermistor in the same location as the original, it has to be in the air flow for the door to open and close at the proper temperature.

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Answered by AppliancePartsPros.com   |   Friday, March 21, 2014

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