Error code Er FS displayed, freezer temperature reading inaccurate or missing.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Failed freezer thermistor, Loose sensor connector, Broken harness in cabinet, Faulty main control board ADC

Safety first: Unplug the refrigerator before testing.

Steps:

1. Locate freezer sensor: Find the thermistor in the freezer wall or on the evaporator.
2. Inspect and reseat: Check the connector and reseat it firmly.
3. Measure resistance: Disconnect and test with a multimeter. Replace if open, shorted, or out of spec.
4. If sensor is good: Trace harness to the control board and inspect for damage. Replace board if necessary.

Medium 3/5

Freezer Thermistor

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