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James CarsonAug 14, 2025
Why does my SystemAir Fantech DEDPV-705 Fan LED flash 3 times then pause?
- HHayley FarrellAug 14, 2025
If the LED on your SystemAir Fan flashes three times followed by a brief pause, it indicates that the system airflow has been reduced. It's recommended to speak with a professional to inspect and clean the exhaust system. If this is new construction, the duct layout might be too restrictive, so inspect the duct layout, referring to sections 3.1.1 and 3.1.2.