Proline Refrigerant Undercharge or Partial Blockage

Freezer runs continuously but does not reach the set temperature; back wall may show only partial frost pattern.

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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

Refrigerant leak in evaporator or condenser, Blocked capillary tube, Weak compressor, Damaged heat exchanger tubing

How to Fix / Troubleshooting

Safety first: Do not attempt to open the sealed refrigeration system yourself. Specialized tools and certification are required.

Basic checks before assuming sealed-system fault:

  • 1. Verify door seal: Ensure the door gasket is sealing all around and that the door is not warped.
  • 2. Check ventilation and condenser: Confirm that the condenser at the back or underneath is clean and that airflow is not blocked.
  • 3. Observe frost pattern: With the inner rear panel removed (and after some running time), a healthy evaporator should have an even frost pattern. Frost only on a small section often indicates a sealed-system issue.

Action: If basic checks are fine and the frost pattern is abnormal, contact a licensed refrigeration technician to check for leaks, blockages, or compressor inefficiency. Sealed-system work involves recovering and recharging refrigerant and should not be done by unqualified persons.

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Repair Difficulty

Professional Required 5/5
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