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John BurchAug 2, 2025
Why is there reduced airflow in my SystemAir Fan?
- DDaniel GriffithAug 2, 2025
If your SystemAir Fan experiences reduced airflow, several factors could be responsible. First, check the display for any alarms. Verify the airflow settings in the control panel and the week program settings. Ensure that none of the digital inputs 1–3 (DI 1–3) are active and set to off. Confirm auto mode is not reducing airflow due to external sensor readings. Inspect and replace filters if needed. Clear any obstructions from diffusers/louvers, fans, and the heat exchange block. Lastly, check for blockages in the building's air intake and roof exhaust, and examine duct runs for damage or dust buildup.
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