Liebherr Insufficient Cooling / Airflow Restriction

Freezer temperature too warm; food softening; compressor cycles but cannot maintain -18°C.

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Safety Warning

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.

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Possible Causes

Evaporator fan not running, Evaporator heavily iced over, Blocked air channels behind interior panels

How to Fix / Troubleshooting

Safety first: Unplug the appliance before removing interior panels.

Steps:

  • Check fan operation: With the door closed switch held in (or magnet applied), briefly power on and listen for the evaporator fan. No sound suggests a fan or control issue.
  • Inspect for ice build-up: Remove drawers and look at the rear panel. Bulging or heavy frost indicates a defrost problem.
  • Manual defrost: Turn off the freezer and leave the door open for 12–24 hours until all ice melts. Protect the floor with towels.

Remedy: After defrosting, if the fan still does not run, replace the evaporator fan motor. If ice quickly returns, investigate and replace defrost components (sensor, heater, or control board) as needed.

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Repair Difficulty

Medium 3/5

Required Part

Evaporator Fan Motor
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