Fisher & Paykel Sealed System Undercharge or Restriction

Refrigerator and freezer temperatures are too warm; compressor and fans run but cannot reach set temperatures.

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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 or filter-drier, Weak compressor, Internal sealed system contamination

How to Fix / Troubleshooting

Safety: Only licensed refrigeration technicians may open the sealed system. Do not attempt to add refrigerant yourself.

  • Basic checks: Confirm doors close properly, gaskets seal, and condenser coils are clean. Ensure fans and compressor are running.
  • Observe frost pattern: Remove the freezer rear panel and inspect the evaporator. A partial frost pattern (only a small section frosted) suggests a sealed system issue.
  • Listen for gurgling: Unusual hissing or gurgling can indicate low refrigerant.
  • Do not puncture lines: Never attempt to access refrigerant lines or valves without proper tools and certification.
  • Professional repair: Contact a Fisher & Paykel-authorized technician to leak-check, evacuate, and recharge the system or replace the compressor/evaporator as needed.
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Repair Difficulty

Professional Required 5/5

Required Part

Sealed System (Compressor / Evaporator / Condenser)
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