What is the reason why Jiang Zhun's good luck is not hot?

The vehicle heating system is not hot, which is divided into two reasons, one is caused by the engine cooling system, and the other is caused by poor operation of the heating control mechanism. When maintaining, we must first determine which cause it is, and then carry out corresponding maintenance. The method of discrimination is simple. Look at the temperature of the two inlet pipes of the warm air small water tank. If both pipes are hot enough, there is something wrong with the air flow control mechanism. On the contrary, if both pipes are cold, or one is hot and the other is cold, it is a problem with the cooling system.

2 The possible problems of the cooling system are:

1 indicates that the thermostat is normally turned on or turned on too early, resulting in a large circulation of the cooling system too early, and the outside temperature is very low, especially when the car is driving, cold air will quickly cool the antifreeze, the engine water temperature will not rise, and the warm air will not be hot.

2. The water pump impeller is damaged or lost, so that the flow through the warm air small water tank is not enough, and the heat can't come up.

Third, the engine cooling system has air resistance, which leads to poor circulation of the cooling system, resulting in high water temperature and no warm air. If there is gas in the cooling system all the time, it is likely that the cylinder pad is damaged and the gas leaks into the cooling system; If the inlet pipe of the small heating tank is very hot and the outlet pipe is very cold, this situation should be that the small heating tank is blocked and should be replaced.

Warm air is not hot;

Solution The car's heater uses a blower to blow the heat from the heater water tank into the cab. If the air volume is insufficient or the distribution of cold and hot air is not good, the heat of the small water tank of the warm air will not be radiated, and the temperature of the warm air will not rise. At this time, first check whether the filter element is dirty and blocked, clean it, and replace it in time if necessary; Then check the operation of each gear of the blower, and each gear must reach sufficient speed. If the knob is set to the warm air position, the air volume is large enough and the wind direction is normal, and the cold air is blown out, check whether the cable of the hot and cold air control flap 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 get hot.