Safety: Unplug the unit before opening the housing.

Steps:

Inspect air outlet: Check the outlet grille for obstructions (plastic wrap, packaging, etc.). Remove any blockage.
Open housing: Remove the cover to access the fan. Look for foreign objects (pieces of filter, plastic, etc.) blocking the blades.
Clean fan and ducts: Vacuum dust from the fan blades and internal ducts. Wipe with a dry cloth.
Check fan blade attachment: Ensure the fan blade is firmly attached to the motor shaft. If loose, tighten the set screw or clip.
Reassemble and test: After cleaning and securing the fan, reassemble and test airflow.
If airflow is still weak: The fan motor may be running at reduced speed due to internal failure and may need replacement.

Humidifier fan runs but no air seems to come out

Possible Causes