Clogged Air Filter Airflow Issue
A clogged air filter airflow issue is the most common and most preventable cause of a fujitsu split system not blowing air. When the filter becomes heavily blocked with dust and debris, airflow restriction indoor unit rises to the point where almost no air can pass through the evaporator coil. The coil then drops below freezing due to the lack of warm air flowing over it, ice forms across the coil surface and blocks the remaining airflow entirely. The result is a fujitsu ac no airflow from vents situation where the fan runs but no air comes out. Cleaning the filter and allowing the coil to defrost often resolves this without needing a technician.
Partly self-preventable