Whynter
Loss of Heat Exchange / Airflow or Refrigerant Issue
Unit blows warm air in COOL mode even though 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
Condenser fan not running, Blocked exhaust (portable), Reversed or misrouted exhaust hose, Severely dirty condenser coil, Refrigerant loss
How to Fix / Troubleshooting
Safety: Unplug before accessing fans or coils.
- Check condenser fan: Observe whether the outdoor/exhaust fan runs when the compressor is on. If not, troubleshoot and replace the condenser fan motor.
- Verify exhaust routing: For portable units, ensure the exhaust hose is connected to the hot air outlet and vented outdoors, not accidentally drawing outdoor air in.
- Clean condenser coil: Remove dust and lint from the condenser fins.
- Refrigerant check: If fans and exhaust are correct but cooling is still absent, the system may be low on refrigerant or have a compressor issue. Contact a licensed HVAC technician.
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Repair Difficulty
Hard
4/5
Required Part
Condenser Fan Motor
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