Liebherr Defrost Sensor / Circuit Error (Alternate Code Set)

Error E3; defrosting may not occur correctly, leading to frost buildup.

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

Defrost NTC sensor failure, Sensor detached from evaporator, Wiring harness damage, Control board defrost input fault

Safety first: Unplug the refrigerator. Beware of sharp fins when working near the evaporator.

Step-by-step:

Access evaporator: Remove freezer drawers and rear panel.
Locate defrost sensor: Find the sensor clipped to the evaporator tubing.
Check attachment: Ensure it is firmly attached to the coil; reattach if loose.
Test sensor: Measure resistance; replace if open/shorted.
Reassemble and test: Restore power and monitor for proper defrosting and absence of E3.

Hard 4/5

Evaporator Defrost NTC Sensor

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