What's causing my a/c vents not blowing out of vents after I have changed the blower motor 2008 Volvo XC90

Question

Recently replaced blower motor.  Changed cabin air filter , but still have very little air flow in vents.

Answer 1

1. Dirty evaporator: If the evaporator is too dirty, the airflow will be poor from the vents.
2. Bad blower motor regulator/control module: the blower motor is not spinning fast enough even at high speed setting.
3. Bad mode door actuator: The airflow is not fully diverted to your desired vents. Check if other vents (floor, defrost) are leaking any air when set to front vents.

Comments

hi there?  I have an A4 2014 B8.5 1.8 model TSFI... I have a problem with my aircon. when you switch it on. It blows air, but the air only comes from the underneath vents by the feet and by the windshield vents (sufficient airflow by the way). But NO amount of air flow is coming from the side vents of the dashboard and the middle vents of the dashboard by the radio. what could be wrong? thank you for your suggestion.