The warm air of the car is realized by the water temperature of the engine. When the engine water temperature is slow in winter, my warm air comes slowly. Under normal circumstances, the warm air will be turned on in about five minutes. If it is not more than ten minutes, it is recommended to check the engine thermostat. If the thermostat is broken, the water temperature will rise slowly, and the warm air is not hot. The heater box is also blocked, which will also cause a similar situation.
The reason why the automobile air conditioner does not cool.
First: insufficient refrigerant. Leakage of refrigerant will lead to poor refrigeration effect. You can check the refrigerant to see if there is any leakage.
Second: the condenser is too dirty. The condenser is used to exchange heat. If its surface is too dirty, the dirt attached to it will affect its refrigeration, and the natural air conditioner will not be cold. So if the air conditioner is not cooled, it is likely to be dirty.
Third: there is water in the pipeline. When the refrigerant flows through the orifice of the expansion valve, it will drop due to its pressure and temperature. At this time, the water on the refrigerant will freeze in the small holes, resulting in poor refrigerant circulation, which is one of the reasons why the air conditioner does not cool.