What is the reason for the sudden lack of air in the car air conditioner?

If the air conditioner stops suddenly, the blower fails, or there is something wrong with the control system.

Let's see if there is any damage inside the air conditioner blower, but we can also adjust the air speed of the air conditioner to the maximum, and then judge whether there is a problem by listening to the sound of the blower.

After all, air conditioning is controlled by the car's control system. Therefore, if there is no wind during use, it is also possible that the system is faulty or the line is faulty.

This kind of problem can't be fixed by yourself. Go to the repair shop or 4s shop for repair.