What are the reasons for no air coming out of the car vents?
1 Answers
The reasons for no air coming out of the vents may include abnormal connection of the vent switch, blown fuse of the air conditioning, blocked air conditioning vents, or malfunctioning of the air conditioning motor fan. Below are the detailed explanations: 1. Clogged air conditioning filter: The most common reason for no air coming out of the air conditioning is a clogged air conditioning filter. Since the outside air usually passes through the air conditioning filter before entering the car interior, the main function of the air conditioning filter is to isolate dust, particles, moisture, and other attachments in the air. It also provides strong sterilization and deodorization effects, ensuring that passengers do not inhale harmful gases that could threaten their health and driving safety. Generally, the air conditioning filter is installed above or below the blower. Therefore, it can be said that air must pass through it to enter the car. If the air conditioning filter is clogged, poor air circulation will naturally result in no air coming out. 2. Damaged blower: The blower is an important part of the air conditioning system, as the air circulation inside the car relies on its operation. When using the air conditioning at high fan speeds, a buzzing sound can often be heard coming from under the passenger seat. This is the sound of the blower working. The higher the air demand, the faster the blower needs to draw in air. Therefore, if the blower is damaged, it may not draw in enough air or fail to draw in air at all, preventing air from being blown out and causing the air conditioning to not work. 3. Faulty air door, computer, or switch: The air door is located inside the air duct and, being made of plastic, may get stuck or break. When the air door cannot open, the air drawn in by the blower cannot flow out through the vents, resulting in no air coming out of the air conditioning.
