Koldfront Loss of Refrigerant / Refrigeration Failure

Unit blows warm air in Cool mode; compressor seems to run but no cooling occurs.

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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 coils or tubing, blocked capillary tube, failed compressor valves, severe undercharge

How to Fix / Troubleshooting

Safety first: Do not attempt to cut into or recharge the sealed system yourself. This requires specialized tools and certification.

Steps:

  • 1. Confirm mode: Ensure the unit is in Cool mode with a low enough setpoint.
  • 2. Check coils: With covers removed (unit off), feel the evaporator and condenser coils after a brief run. If both are at or near room temperature, the refrigeration cycle is not functioning.
  • 3. Listen to compressor: A running compressor with no temperature difference across coils often indicates low refrigerant or internal compressor failure.
  • 4. Call a technician: A professional must check system pressures, locate leaks, and determine if repair or replacement is economical.
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Repair Difficulty

Professional Required 5/5

Required Part

Sealed Refrigeration System
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