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11739131-1-S-Whirlpool-WP2188819-Thermistor 11739131-2-S-Whirlpool-WP2188819-Thermistor https://www.partselect.com/Schematics/Whirlpool/4CMP555H.gif


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PartSelect Number PS11739131
Manufacturer Part Number WP2188819
Manufactured by Whirlpool

This part is used to detect the temperature in the air inside of your refrigerator.

This part works with the following brands: Kenmore, KitchenAid, Whirlpool.

This part works with the following products: Refrigerator.

This part fixes the following symptoms:

  • Fridge too warm.
  • Freezer too cold.
  • Fridge too cold.

Questions & Answers

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Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 4.7 / 5.0, 2 reviews What's this?
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135 of 186 people found this instruction helpful

Parts Used:
Level of Difficulty: Really Easy
Time to do repair: Less than 15 mins
Tools: Nutdriver, Screw drivers
Customer: Bill from Andover, MA

Refrigerator too warm, freezer fine

I replaced the Diffuser and the Thermistor (the one in the refrigerator) at the same time. I was not sure what the problem was ahead of time except for the fact that no air was coming in from the freezer section; this is where the air diffuser is. I probably only needed to replace the diffuser.

I turned the circuit breaker for the refrigerator off. There was a small section of plastic covering the wires that run from the top console inside the refrigerator to the back of the refrigerator where the diffuser is. I took this off (one screw) and then the diffuser is connected in the refrigerator side with one screw. To push the diffuser from the freezer, I needed to take off a piece of plastic directing the flow of air from the freezer. I needed to move the ice maker forward a little; it moves forward easily (it sort of clips into place). Once the diffuser was visible from the freezer, I pushed it out or disconnected the four clips holding it in and it came right out. Once this is done, you simply unplug the old and plug in the new and put back in place. This took less than 15 minutes total time. Online diagrams makes ordering parts and fixing easy.

Once the new diffuser was in, I could tell I was golden because I was getting cold air. I guess this piece goes bad from time to time based on others experiences.

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6 of 8 people found this instruction helpful

Parts Used:
Level of Difficulty: Really Easy
Time to do repair: 15 - 30 mins
Tools: Nutdriver, Screw drivers
Customer: Dean from GRANBURY, TX

Constant 20 below zero in freezer (side by side ref/freezer) ref 37 deg. Ok. Defrost frozen up with ice.

I watched several video's on youtube that showed me how to replace the parts. Just Google "how to fix my freezer". I figured the only problem was the freezer Thermistor so I only replaced it. The refrigerator has one to. Instantly the freezer went back to Zero degrees and the defroster works fine after melting all the ice in the bottom. Make sure the drain hole is cleared. I ordered the bi-metal thermostat just in case but I don't need it. Be sure and position the thermistor down in the freezer rail on the right side just to where you can see it in the first opening and pull it back up out of sight and tape it to the wall where it comes through from the air baffle. It's important that it's 7.8 " down from the top of the freezer. Happy now, Freezer 0, refrigerator 37. This thing use to run all the time, I'm saying electricity now.

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Model Cross Reference

This part works with the following models:

PartSelect Number: PS11739131
Manufacturer Part Number: WP2188819
Brand Model Number Description