What Are the Reasons for a Car's Air Conditioning Suddenly Not Blowing Air?
2 Answers
The reasons for a car's air conditioning suddenly not blowing air are: 1. Blower motor failure: The blower motor is the core component for air conditioning airflow, and its failure may be due to internal coil overheating damage or capacitor failure; 2. Clogged air filter: Outside air passes through the air filter before entering the car, which can trap many airborne particles, leading to blockages and preventing airflow; 3. Control system failure: Issues with the air door, control switch, or the car's air conditioning computer could be the cause, and these are difficult to repair manually, requiring a visit to a 4S shop for repairs. The car air conditioning system, abbreviated as car AC, is used to regulate and control the temperature, humidity, air cleanliness, and airflow within the car's cabin to maintain optimal conditions.
I've encountered the issue of no air coming out of the AC several times. The most common cause is a problem with the blower motor - if that little fan gets stuck or burns out, it's game over. Another possibility is a blown fuse due to circuit overload protection; you can check the corresponding markings in the fuse box under the driver's seat. A broken control switch where the button won't press is also a potential reason. When the airflow knob has poor contact, only the maximum and minimum settings work. Voltage instability can also burn out the motor, especially in older cars. I remember how terrible it feels when the AC stops working during summer drives - sweating buckets makes driving downright dangerous. Don't forget to regularly check the blower's rotation sound and wire connections to avoid more expensive emergency repairs. The motor itself isn't expensive, but replacing it takes time and really messes up your travel plans.
