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Michelle ButlerAug 9, 2025
Why is my Mitsubishi Heavy Industries FDU100VNPWVH not cooling or heating properly?
- FfbishopAug 10, 2025
Several factors can cause poor cooling or heating. Check if the air filter is clogged and clean or replace it. Ensure the swing louver position is adjusted correctly, especially during heating. Remove any obstacles blocking the air inlet and outlet grill. Block direct sunlight coming into the room. Finally, verify the unit is set in the desired mode and not in heating preparation mode.