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Customer Questions and Answers for Refrigerator Temperature Sensor by Frigidaire

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Manufacturer Part
4.89 (64)
By: Frigidaire
Part Number: OEM21729474
Manufacturer Part Number: 240597220

Fixes incorrect temperature readings and short cycling. This thermistor monitors fridge temps and signals the control board. Moderate DIY repair.

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Questions & Answers

For Frigidaire Refrigerator Temperature Sensor (Part Number: OEM21729474)

1 Answer

Dusten, The freezer thermistor is located on the left side ceiling area of the refrigerator compartment. You will need to remove the control panel and controls from the ceiling, and the cover on the left side wall, Then you can remove the damper assembly and replace the thermistor. To remove the Control Housing Assembly, remove the three screws across the front control box and the two screws located in the rear control box. After removing cover over water line on front filter models, remove the screw from the back of the control box. Separate the two housings at the left back of the front housing by sliding the rear housing to the right until the buttons line up with the larger hole in the slots. Once the control and cover are removed you can access and remove the damper assembly and replace the thermistor.

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Gary, This issue would most likely be a faulty overload and relay that would need to be replaced.

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1 Answer

Hello Tammy. You need to check and see if the damper is bad and needs to be replaced on the unit.

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Hello Mike, The temperature sensor in the freezer compartment is at the bottom left below the evaporator cover. You will have to remove the baskets to located it on the left side wall nearly against the rear wall.

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Hello Sharon, You will need to locate the sensor cover in teh fresh food compartment and unhook it from the bottom first. The wires will have to be cut and spliced back together on some models. Others have a connector that will be unplugged and re-connected.

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Zach, This would be a communication error and if you already replaced the main control board under the unit then you would want to replace the dispenser control board to correct this error.

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