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Introduction
Use this guide to replace the freezer thermistor or temperature sensor in your Whirlpool WRS315SDHW Refrigerator.
The freezer thermistor measures the air temperature in your freezer and signals temperature regulatory processes. If your freezer doesn't cool properly, your freezer thermistor might be broken.
***Note:*** Some photos show the doors removed for clarity purposes. Removing them is not required and will not change the procedure.