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Customer Questions and Answers for Refrigerator Air Damper by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18019983
Manufacturer Part Number: WP2216112

Refrigerator not cooling but freezer works fine? The air damper controls cold air flow between compartments. DIY-friendly repair with video guide.

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Questions & Answers

For Whirlpool Refrigerator Air Damper (Part Number: OEM18019983)

1 Answer

Chris, With the center divider getting hot you will want to check the condenser fan to make sure that the fan is working. If the fan is not running then you will need to replace the fan. This could potentially cause ice to get in the diffuser also.

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1 Answer

Tim, With there being ice build up around the diffuser and around the crisper, you will want to look for a air leak. If none is found then it would most likely be a diffuser that is causing the ice build up.

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1 Answer

Manuela, On the diffuser cover there is a grill looking area that the thermistor will slide down into. It will stay on the refrigerator side.

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Dan F for Model Number KSRT25CRMS01

Fridge not cold enough. Checked condenser fan - appears good, cleaned off condenser coils - were really dirty. Still not cooling fridge. Checked evaporator coils - not frosting over, also evaporator fan appears good - blowing good stream of air. Checked thermistor inside freezer and fridge - both around 3.3-3.7 ohms. Air diffuser damper closed - doesn't appear to open/respond to warm temps. Verified 115 VAC going to air diffuser motor. My troubleshooting leads to air diffuser as suspect. Do you concur?

1 Answer

Dan, Yes we concur. If you have 115 VAC across the black(L1) and orange/black wires(N) then the diffuser motor should run in either direction. The WP2216112 Air Diffuser will need to be replaced.

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Larry B for Model Number KSRA25FKSS00

Freezer fine plenty cold, frig warm, Evap not froze up fan running fine. Defrost and drain working right Seems like the damper closes after just an hr or less of run time and then does not open back up to send air into the refrig. section. The Sensor/Thermister is fairly new. How does it all work with the T-Stat and the board along with sensors. Sequence of operation. I really need to fix this.I tried to test the damper assy on my work bench. It will open and close with power to the right terminals. I wonder can it close on its own? I had changed the sensor about 1 mo. ago because the frig freezer was running way too cold. this did fix that problem. now 3 weeks later this new problem with the ref. section problem. Thanks larry B

1 Answer

Hello Larry. The sensor communicates through the board to open the diffuser. If the sensor WP2188819 is new, then it sounds like the board 8201664 will need to be replaced in the unit.

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1 Answer

Carl, Based on your model number it would appear that you have the wrong damper. The correct damper would be part number WP2209751.

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1 Answer

Hello Kyle, Disconnecting the diffuser will not make the unit cool properly and may make the fresh food compartment much too warm to keep anything. I would not recommend it since parts normally show up much quicker than the estimated shipping time.

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