Whirlpool Loss of Refrigerant Charge / Heat Transfer Failure

Unit blows warm air when set to COOL mode, even though the compressor appears to run.

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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, restricted capillary tube, internally damaged compressor, reversed valve position on heat pump models

How to Fix / Troubleshooting

Safety: Do not attempt to open the sealed system or add refrigerant yourself.

User checks:

  • Ensure the unit is actually in COOL mode and not FAN or HEAT.
  • Clean filters and coils to maximize heat transfer.
  • Verify that both indoor and outdoor fans are running.

If airflow is normal and the compressor runs but there is little or no temperature drop across the coil, the system likely has a refrigerant or compressor problem. Contact a certified technician for leak detection and repair options.

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Repair Difficulty

Professional Required 5/5
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