Daikin Indoor Airflow Restriction / Fan Performance Issue

Daikin indoor unit runs but no air comes out or airflow is very weak even on high fan speed

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Extremely clogged air filters, Severely dirty blower wheel, Collapsed or blocked duct (for ducted units), Failing indoor fan motor

Safety first: Turn off the unit before cleaning or accessing internal parts.

User steps:

Remove and thoroughly clean the air filters.
Check that supply and return grilles are open and not blocked by furniture or curtains.

Technician tasks:

Remove the blower assembly and clean the blower wheel if heavily impacted with dust.
Inspect ductwork for collapses or closed dampers.
Test and replace the indoor fan motor if it cannot reach proper speed.

Medium 3/5

Indoor Fan Motor / Blower Wheel

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