What Causes No Airflow from Car Air Conditioning Vents?

1 Answers
JaylaMarie
07/29/25 2:38pm
Here are the reasons for no airflow from car air conditioning vents: 1. The gear switch or knob is not properly adjusted to the correct position. 2. Damage to the air duct diverter valve. First, check if the vents are open and if the switch is properly adjusted. If the vents are open but there is still no airflow, inspect for any blockages in the vents. It is recommended to seek assistance from a professional auto repair shop. Here is some related information about the air conditioning system: 1. Parameters that can be set for the car air conditioning include the compressor cooling switch, temperature level, vent direction, airflow volume, internal/external circulation, and windshield defogging. 2. The left knob adjusts the air conditioning temperature—clockwise to increase temperature and counterclockwise to decrease it. The middle knob controls the vent direction; adjusting it to the windshield defogging position activates the rearview mirror heating when the middle button is pressed. The right knob regulates the airflow volume, and the middle button sets the air circulation mode.
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