The car warm air is not warm, how to solve it?

The heat source of the warm air in the car is the afterheat of the engine, so it is the water temperature of the engine that determines whether the warm air is hot or not. If the engine water temperature is low, the warm air will not be hot. If the warm air is not hot, observe the engine water temperature first. If the water temperature is low, the temperature rises slowly, or only stays at about 40 degrees, the thermostat should be the most suspicious. The working principles of automobile heating system and refrigeration system are different. To determine why the automobile heating system is not working well, we must first understand the basic principle of the automobile heating system, and then we can further determine the cause of the problem.

This mode is not used properly. The air conditioner compressor should not be turned on, and the internal circulation should be switched. The hot air of the engine comes from the warm air tank, which needs to be blown out by the outside blower, heated in the warm air tank, and then sent into the car. So we should check the operation first. Ensure that the engine temperature reaches the ideal working temperature: observe the temperature rise of the water thermometer, and further check that the two temperatures of the intake pipe of the heater box are close to the engine, and the temperature difference is not big. If the temperature of the two water pipes in the warm air tank is very high and there is no warm air, it should be suspected that the control damper of the warm air tank is opened and closed incorrectly.

The warm air of the fuel truck is basically heated by the residual heat of the engine. In the case that the cold car has just started and the engine water temperature has not reached the normal working temperature, the wind blown out by turning on the warm air at this time is not hot. The correct way is to turn on the warm air after the engine water temperature rises. If the car heater is not hot, it needs detailed inspection and analysis to know the reason. First of all, you need to make sure that the temperature of the air conditioner is adjusted correctly. If there is no problem with the adjustment, you need to check the water pipes of the water heater to see if the temperatures of the two pipes are the same. If both water pipes are not hot or have a temperature difference,

The warm air of our family car is generated by our engine, and the heat radiates to our cooling system, and then the cooling system is connected to our car to provide warm air for our car! When we find that the car heater is not hot, we must carefully check the cause of the fault and carry out maintenance in time.