What if the car comes out with warm air and cold air?

Check whether the heater switch is damaged and whether the heater water tank is blocked.

Generally, cars need to add heat medium once every 2-3 years, or judge whether it is necessary to add refrigerant according to the refrigeration effect of cars. Although there is natural loss of refrigerant, the leakage of air conditioning pipeline or condenser is the main reason to accelerate the loss of refrigerant.

Important points to note:

Some car owners do not pay attention to adjusting the blowing direction of air conditioner when using air conditioner, according to the principle that cold air sinks and hot air rises. This effect is actually very bad. When you first enter the car, you should first open the window for ventilation.