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Introduction
Use this guide to test and replace the freezer thermistor in your LG LFX 25973 RefrigeratorLFX25973 refrigerator.
The freezer thermistor monitors the temperature inside the freezer compartment. It has a resistance that varies according to temperature, and the main control board monitors this value.
If the thermistor fails, the freezer temperatures will not be correct, and an ***''Er''*** ***''FS''*** error code may show on the display next to the ice and water dispenser.