What is the reason for one of the car's air conditioning vents not blowing air?

2 Answers
OGenesis
07/29/25 5:09pm
If one of the car's air conditioning vents is not blowing air, the possible reasons are as follows: 1. The vent may be blocked by dust or other debris. 2. The switch might not be turned on. Some switches may show display text even when they are not activated. 3. Check the direction of the vent blades, as the airflow might be directed elsewhere. 4. The vent might be damaged and require replacement. The vent is a separate system, similar to a hair dryer, and its malfunction is unrelated to the central air conditioning system. Precautions for using the air conditioning system are as follows: 1. When using the air conditioning in summer, ensure to select an appropriate temperature. Normally, the temperature inside the car should be 5 to 6 degrees Celsius lower than the outside temperature, with the optimal range being 18 to 25 degrees Celsius. 2. For vehicles parked under the sun for extended periods, it is not advisable to use the air conditioning immediately after starting the car. Instead, open the windows for ventilation first, and only close them and turn on the air conditioning after the hot air inside has been expelled.
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VanEmmanuel
08/14/25 7:32am
I've been driving for many years and have encountered issues with air vents not blowing air. Common causes include clogged ducts, where dust and debris block the airflow. Additionally, the blower motor might be burnt out, preventing air from being pushed through. Another possibility is a faulty mode switch, such as the air direction setting being stuck in the closed position. I recommend first checking if the vent positions are adjusted correctly. If that doesn't help, visit a repair shop as soon as possible to clean the ducts or replace components. Avoid forcing any fixes yourself to prevent further damage to parts. The health of the air conditioning system directly affects driving comfort, so regularly replacing the cabin air filter can help prevent clogs.
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