F05
Bauknecht Refrigerant System Performance Fault

Freezer temperature too high, ice cream soft, compressor runs almost continuously

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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

Low refrigerant charge (leak), Partially blocked capillary tube, Weak compressor, Condenser coil heavily clogged

How to Fix / Troubleshooting

Safety first: Do not attempt to open the sealed refrigeration system yourself. High pressure and refrigerant require certified handling.

  • Check door sealing: Ensure the freezer door gasket is sealing all around. Look for gaps, torn rubber, or dirt preventing closure.
  • Clean condenser coils: Unplug the fridge. Access the rear or bottom where the condenser coils are located. Use a soft brush and vacuum to remove dust and lint. Improved airflow can significantly enhance cooling.
  • Verify ventilation space: Make sure the fridge is not pushed tightly against the wall and that warm air can escape from the back and top.
  • Check for frost pattern: If accessible, remove the inner freezer rear panel (unplug first). A normal system shows a light, even frost over most of the evaporator. If only a small section frosts or there is no frost at all while the compressor runs, this suggests a sealed system issue.
  • Do not attempt DIY refrigerant charging: Refrigerant leaks, compressor replacement, or capillary blockages must be diagnosed and repaired by a certified refrigeration technician with proper tools.
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Repair Difficulty

Professional Required 5/5
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