Indoor unit runs but airflow is very weak even on high fan speed.

Safety first: Turn off power before cleaning or accessing the fan.

• Step 1 – Clean filters: Wash and dry filters thoroughly.
• Step 2 – Inspect coil: Clean the evaporator coil with a suitable cleaner if it is covered in dust.
• Step 3 – Check louvers: Ensure the discharge louvers are fully open and not obstructed by curtains or furniture.
• Step 4 – Test fan motor: If airflow remains weak, the indoor fan motor or its capacitor may be failing and should be tested and replaced.