What Causes Car AC to Freeze and Stop Blowing Air?

[LylaRose]

The reasons why a car's air conditioning system freezes and stops blowing air are as follows: 1. Clogged AC filter: This can prevent airflow, leading to freezing. You can remove the AC filter to check if it's too dirty, as excessive dirt can block the filter and stop airflow. 2. Blower motor failure: A damaged blower motor can cause the AC to stop blowing air. If this occurs, it's necessary to promptly visit a 4S shop or repair facility for inspection and repair. 3. Issues with the car's AC control system: For example, a faulty expansion valve. If the expansion valve opens too much, it can cause the evaporator temperature to drop too low, leading to ice blockage and preventing airflow. If the AC system shows signs of freezing and you can't identify the cause, it's advisable to visit a repair shop for professional diagnosis and replacement of faulty components.