The answer to 'dehumidifier not cooling' is that the most common causes are a clogged air filter, refrigerant leak, or issue with the compressor. Symptoms include the dehumidifier running but not cooling the air, and high humidity levels in the room. Solutions may involve cleaning or replacing the air filter, repairing refrigerant leaks, or replacing the compressor. If the issue is not easily fixed, it's best to call a professional HVAC technician to diagnose and repair the problem.
Dehumidifiers work by cooling the air and removing moisture. If the cooling function is not working, the dehumidifier will not be able to effectively reduce humidity levels. DIY troubleshooting and repairs may be possible for minor issues, but more complex problems should be handled by a qualified HVAC technician to ensure safety and proper functioning.