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Customer Questions and Answers for Refrigerator Air Diffuser by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18855129
Manufacturer Part Number: W11164593

Fixes loud clicking, knocking, or popping noises from the refrigerator. This air diffuser distributes cold air evenly. DIY repair in under 15 minutes.

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Questions & Answers

For Whirlpool Refrigerator Air Diffuser (Part Number: OEM18855129)

1 Answer

Myra, as the diffuser W11164593 would be the only moving part in the refrigerator section, it is very likely that it is the cause. It is likely that there is a stripped gear that is grinding when the diffuser is opening or closing.

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1 Answer

Hello Shawna, This sounds like the unit is short cycling. I would first try replacing the defrost thermostat WPW10225581. The unit should also sit idle for several minutes after the defrost thermostat opens to allow time for the melted frost to make its' way down the defrost drain. I would also check for any possible air leaks which would add room humidity which would cause excessive frost buildup. It is doubtful that the diffuser would have anything to do with the frost accumulation.

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1 Answer

Hello, Tommy. Disconnect power to the refrigerator. Open the water filter door and remove the filter. Remove the ¼” screw securing the air damper (diffuser) cover to the cabinet. Remove the air damper cover.

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1 Answer

Hello Justin, If you purchased the part from appliancepartspros.com you have a 365 day warranty on the part. Just give us a call at 1-877-477-7278 with the model and serial number of the unit the part is in and, if you have it, the order number. We will be happy to replace the part under the part warranty. As far as the longevity of the part, since we do not design or manufacture the parts we have no control over the quality of the parts. We only sell the parts available from the manufacturers. Thank you for your patience and understanding in this matter.

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1 Answer

Hello William. Looking at the diagram it looks like the cover should unsnap from the upper left corner to replace the damper in the unit.

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1 Answer

Hello Shelton. You can not access through the freezer section. You must go through the fresh food and remove the cover in the back left corner in the top of the unit to access the diffuser W11164593.

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