Part Location Diagram of 297018400 Frigidaire Thermistor
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Thermistor

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$87.80
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PartSelect Number PS977306
Manufacturer Part Number 297018400
Manufactured by Frigidaire
Troubleshooting
This part fixes the following symptoms:
Doesn’t stop running | Too warm
This part works with the following products:
Freezer.
This part works with the following products:
Frigidaire, Kenmore, Crosley, Electrolux.
Part# 297018400 replaces these:
AP3780724, 7297018400
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Customer Repair Stories
 Average Repair Rating: 3.3 / 5.0, 1 reviews. What's this?
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Sorry, we couldn't find any existing installation instruction that matched.
The temperature displayed on the control panel was erratic
The replacement of the Thermistor is a snap. Take out the bottom two shelves, remove the 8 screws in the back panel, pull it out. Cut the wires to the old thermistor and install the new one. There are demo's on you tube so I wont go into detail.

Unfortunately the replacement door seal was packaged with twists in it and would not lay flat on the door. I found the old seal was not the problem - but instead ice had grown between the door and the door panel so that the door would not seal properly. I reinstalled the old door seal and everything is fine now.
Other Parts Used:
Freezer Door Gasket
  • David from WILMINGTON, DE
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    1- 2 hours
4 of 4 people found this instruction helpful.
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Questions and Answers

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10 questions answered by our experts.
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Brandon
May 7, 2018
If the thermistor goes bad would it cause the freezer to run non stop? It seems it is running non stop, I have replaced the board controller on front and the condenser fan.
For model number FFU21F5HWG
PartSelect logo
Hi Brandon, Thank you for the question. The Thermistor can cause this issue as well as the defrost thermostat, PartSelect Number: PS2350702. I suggest testing them both with a multi meter. Hope this helps!

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Amir
January 7, 2018
The high temp alarm is constantly beeping even tough the temp is not high.What could be the problem?Also occasionally the door alarm is beeping even though the door is closed completely. We replaced the control panel and it didn't help.
For model number FFU21F5HWK
PartSelect logo
Hi Amir, Thank you for the question. This sounds like a defective Thermistor, PartSelect Number PS977306. I suggest having this part replaced. Hope this helps!

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Joel
July 12, 2023
For a while it seemed to never stop running. I unplugged it and then plugged it back in. Now it shows OFF on the display. Nothing I do will change that and off course it is not running.
For model number FKFFH21F7HWD
PartSelect logo
Hi Joel, thank you for the question. We have found that to activate freezer, press up (^) three times until display shows 1, then press (^) to the desired setting. To fix the running issue, we would recommend checking the thermistor, part number PS977306. It senses the temperature inside the freezer and sends information to the electronic control board. We hope this solves your problem!

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Cory
September 22, 2023
Our upright freezer will turn on and freeze for several hours then turn off. It will not turn back on unless you unplug and mess with temp settings. We've been doing this routine for days. Pulled inside cover and evaporator is not freezing up. Haven't bought any parts yet.
For model number ffu17f5hwj
PartSelect logo
Hi Cory, thank you for the question. Normal operating room temperatures for a freezer are between 60° and 95° Fahrenheit. The hotter and more humid the air is the less efficient the freezer will be, causing it to run more. If possible, keep the freezer within the recommended operating temperatures and as cool as possible. Check to see that the doors are closing properly. If a door bin or food item is keeping the door open slightly, the freezer may not cool properly, which can cause the freezer to run all the time. Clean the condenser coils. If the condenser coils are dirty, they will not be able to dissipate heat effectively, greatly reducing the cooling capacity of the freezer. If the condenser coils are dirty or have not been cleaned in a while, clean them. If this does not help, we recommend replacing the electronic control board, part number PS3502428. Glad to be of assistance!

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Gary
July 25, 2019
Freezer too warm. This happened 11 months ago as well. The coil was completely frozen. Once thawed i tested the defrost heater and it appeared to be ok. Now the temperature display shows 1 degree f but actual temperature is 22 degrees f. Could this be the thermistor or the control panel, and how can i check?
For model number GLFH21F8HWJ
PartSelect logo
Hello Gary, thank you for inquiring. You can test the resistance of the Thermistor with a multi meter. There should be a tech sheet behind the bottom front grill indicating what your model refrigerator's Thermistor should test as. We hope this helps!

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Roger
January 14, 2020
Evaporator coil completely froze over & compressor running constantly. Defrost cycle not working properly. Tested heating element and defrost termination switch—both good. Problem is either the control board or the thermistor. Is there a way to test the thermistor?
For model number 253.28092806
PartSelect logo
Hello Roger, Thank you for your question. You can use a multi-meter to test the electrical charge in the thermistor to see if it is getting power or if it is defective. Our sources suggest it is likely to be the thermistor that is defective for your model than the control board, but if the thermistor isn't defective the control board under part PS3493021 for your model would likely need to be replaced. We hope this helps.

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Jim
October 13, 2022
Is the freezer supposed to run all the time? I've replaced the thermostat, but it still runs constantly. Is the defrost timer located next to the compressor? Maybe that's the problem. Thank you.
For model number 253284322805
PartSelect logo
Hello Jim, thank you for your question. We have researched your model and found that the issue is probably with the Defrost Thermostat, part number PS2350702. If that does not take care of the issue, then the problem is most likely to be related to the Defrost Heater, part number PS10062889. If you require assistance to place an order, please contact customer service. We hope that helps!

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Lydia
February 25, 2023
My Frigidaire freezer it has a E9 error.And is constantly running.It does get cold to minus 20 degrees .I replaced the thermistor the defrost thermostat and the control bord and I still get the same error .Is there any thing else to look into?
For model number ffu14f5hwb
PartSelect logo
Hello Lydia, thank you for contacting us. It seems like there is a problem with your run capacitor, part number PS2333670. If checking this part does not solve the problem, please check your defrost heater, part number PS10062889. We hope this solves your problem!

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Gregg
September 29, 2023
Our freezer isn't cold enough, is there a way to make it colder ?
For model number Fffu14f2qwn
PartSelect logo
Hello Gregg, thank you for the question. It appears that your freezer may have a damaged evaporator fan motor, part number PS3502361. Good luck with the repair!

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Joe
September 14, 2017
What is the cost for thermostat for this model
For model number LFFU14F5HWN
PartSelect logo
Hi Joe, Thank you for your question. The defrost thermostat only comes with the defrost heater. I have linked the part below so that you can check the price. Good luck with your repair.

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Related Parts
Model Cross Reference
This part works with the following models:
PartSelect Number: PS977306
Manufacturer Part Number: 297018400
Brand
Model Number
Description
Kenmore
25314772100
Freezer
Kenmore
25314772101
Freezer
Kenmore
25314772102
Freezer
Kenmore
25314772103
Freezer
Kenmore
25324092101
Freezer
Kenmore
25324462100
Freezer
Kenmore
25324462101
Freezer
Kenmore
25324462102
Freezer
Kenmore
25324462103
Freezer
Kenmore
25324462104
Freezer
Kenmore
25326072100
Freezer
Kenmore
25326072101
Freezer
Kenmore
25326072102
Freezer
Kenmore
25326072103
Freezer
Kenmore
25326082100
Freezer
Kenmore
25326082101
Freezer
Kenmore
25326082102
Freezer
Kenmore
25326092100
Freezer
Kenmore
25326092101
Freezer
Kenmore
25326093100
Freezer
Kenmore
25326472100
Freezer
Kenmore
25326472101
Freezer
Kenmore
25326472102
Freezer
Kenmore
25326482100
Freezer
Kenmore
25326482101
Freezer
Kenmore
25326482102
Freezer
Kenmore
25327002410
Freezer - FREEZER
Kenmore
25327002411
Freezer - FREEZER
Kenmore
25327003410
Freezer - UPRIGHT FREEZER
Kenmore
25327003411
Freezer - FREEZER
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