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Justin HarrisAug 7, 2025
Why is my MrCool Air Handler not cooling or heating properly?
- LltorresAug 7, 2025
If your MrCool Air Handler isn't cooling or heating as expected, several factors could be at play. First, check if the air inlet and outlet are blocked by any obstructions and remove them. Ensure that the temperature is appropriately set using the wired controller. Make sure all doors and windows are closed. Direct sunshine can also affect performance, so use curtains or louvers to block the sunlight. Also, reduce any excessive heat sources within the room. Finally, a dirty filter screen can restrict airflow; clean the filter to resolve this.
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