Liebherr NoFrost System Failure

Excessive frost buildup in a NoFrost freezer compartment.

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 heater failure, Defrost sensor failure, Door gasket leak allowing moist air in, Evaporator fan not circulating air

Safety first: Unplug the appliance. Prepare for water from melting frost.

Step-by-step:

Manual defrost: Empty the freezer and allow it to defrost completely with doors open for 24 hours.
Check door seal: Inspect the freezer gasket for gaps or damage. Replace if not sealing properly.
Fan check: After defrosting, confirm that the evaporator fan runs when the door is closed.
Monitor: If heavy frost returns quickly, the defrost heater or sensor likely needs testing and replacement by a technician.

Medium 3/5

Door Gasket or Defrost Heater

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