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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)

2 Answers

Hello Albert, There is normally a temperature sensor in the fresh food compartment, one near the bottom of the evaporator cover in the freezer compartment, and one on the evaporator coils in the evaporator compartment behind the rear wall in the freezer compartment.

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1 Answer

Andrew, If the sensor is checking ok on a error that shows a shorted sensor then this would be a faulty main control board that would cause this issue.

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1 Answer

Hello Paul, This unit has not got a temperature sensor as such. It has capillaries that run from the two temperature controls, 241537104 and 5304496561, located in the control box in the top of the fresh food compartment.

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1 Answer

Hello Stan. Your model uses a damper 215011502 to control the temperature inside the fresh food section. You will need to check and see if the damper is bad and not opening and closing properly. Thank you.

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1 Answer

Hello Bill, This is normally located at the bottom left side of the unit at the base of the evaporator cover. If not there, look around on the walls for the small sensor cover.

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1 Answer

Bruce, On the side wall there will be a cover that is held in by a screw, this is where the thermistor will be located. You simply remove the screw and cover and can disconnect the thermistor and replace it.

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1 Answer

Hello Milton, The fresh food compartment thermistor is located to the right of the center shelf support bracket, just above the crisper on the back wall of the food compartment. To remove the fresh food compartment thermistor: 1. Disconnect power from the unit. 2. Extract the screw securing the air vent to the back wall of the unit. 3. Pull thermistor out of the bracket and disconnect the Molex connector coming out of the back of the liner.

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1 Answer

Hello Joy, The temperature sensor 240597220 in the freezer compartment is located at the bottom of the evaporator cover on the left side as looking into the freezer compartment. It will be inside a sensor housing 241845401.

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