Why is my Heinner Air Conditioner not cooling properly?
- RRandy AllenAug 6, 2025
Several factors can cause poor cooling or heating. Check if the air filters are dirty and ensure unrestricted airflow around both the indoor and outdoor units. Verify that the temperature and mode settings are correct, and that windows or doors are closed. Make sure the fan speed is set to high and the louvers are allowing maximum airflow. Direct sunlight, other heating devices, too many people in the room, or activating the SILENCE function (which prioritizes noise reduction) can also reduce cooling performance.