It is also possible that the air duct on the non-hot side is not open or blocked, and the air outlets are all open and closed. Just checking. If cold air blows from one side, check whether the control flap cable of cold and hot air in the warm air box falls off, whether the warm air impeller is damaged, whether the flap falls off, etc. After troubleshooting, the warm air will heat up. It is suggested that riders should regularly clean the air-conditioning pipes and make a comprehensive maintenance of the heating system of the car before winter comes.
Extended data:
Precautions:
If you turn on the air conditioner for a long time, you should change the air in time. You can open the window a crack to keep the air inside and outside the car unobstructed. It is not enough to rely on external circulation; It is necessary to open the window.
When the warm air is turned on, the temperature should not be too high. If it is too high, it will be dry, and the skin will lose water and age faster. If the distance is far away and the warm air temperature is too high, it will make people sleepy and increase the risk factor.
Baidu encyclopedia-automobile heating system