Liebherr Partial Refrigerant Loss or Reduced Cooling Capacity

Wine cooler runs continuously but does not reach set temperature; interior is cool but not cold enough.

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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

Small refrigerant leak in evaporator or tubing, Partially blocked capillary tube, Weak compressor losing efficiency, Dirty condenser reducing heat rejection

How to Fix / Troubleshooting

Safety first: Unplug the unit before cleaning or removing covers. Do not bend or puncture refrigerant lines.

Steps:

  • 1. Check door seal and usage: Ensure the door is sealing properly and not opened excessively. High ambient temperature also reduces performance.
  • 2. Clean condenser: Remove rear cover and thoroughly clean dust from condenser coils and fan (if fitted).
  • 3. Monitor frost pattern: After running for 30–60 minutes, remove the interior rear panel and inspect the evaporator. A healthy system will show even frost across most of the coil. Frost only at the inlet or no frost suggests a sealed system issue.
  • 4. Temperature verification: Use an accurate thermometer to confirm actual cabinet temperature versus display.
  • 5. Professional service: If the evaporator frost pattern is abnormal or the unit cannot reach setpoint despite continuous running and good ventilation, contact a Liebherr-authorized technician for sealed system diagnosis.
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Repair Difficulty

Professional Required 5/5
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