Liebherr Defrost System Failure or Door Seal Leak

Excessive frost or ice buildup on the back wall or around the evaporator; fan noise may increase.

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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

Failed defrost heater, Defective defrost thermostat or sensor, Door gasket leaking warm moist air, Door frequently left ajar

How to Fix / Troubleshooting

Safety first: Unplug the appliance before defrosting or accessing electrical components.

Steps:

  • 1. Manual defrost: Switch off and empty the cooler. Leave the door open until all ice has melted. Do not use sharp tools to remove ice.
  • 2. Check door gasket: Inspect for gaps or damage. Replace if the seal is not tight all around.
  • 3. Inspect defrost components: Remove the interior rear panel and locate the defrost heater and thermostat. Test for continuity with a multimeter.
  • 4. Replace faulty parts: Install new Liebherr defrost heater or thermostat as required.
  • 5. Usage habits: Minimize door opening time and ensure the door closes fully after each use.
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Repair Difficulty

Hard 4/5

Required Part

Defrost Heater / Door Gasket
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