What happened to the car fan not turning?

The reasons why fans don't turn around are: 1. The air conditioner filter is blocked: the warm air is not too hot. First, check the air conditioning filter to see if it is dirty or blocked. Dirty air conditioning filters really affect the heating and cooling of the warm air. When the filter screen of the air conditioner is dirty, the wind blown out is small, and you may not notice it. 2. Insufficient antifreeze: Insufficient antifreeze will also affect the warm air. Because warm air uses the heat of antifreeze, hot antifreeze enters the warm air tank, heats the warm air tank and blows it out through the warm air tank, which is hot air. If the antifreeze is not enough to rush to the warm air small water tank, the amount will be reduced and it will not be so hot, so the wind blown out will not be so hot. 3. The heating box is blocked: the heating box is blocked, and the antifreeze cannot enter the heating box or enters very little, so the heating box will not be blown out after it, and it must be warm. If the heater water tank is blocked, maintenance will be in trouble. You need to remove the entire dashboard to see it.