What should I do if the warm air in the new Santana car is not hot in winter?

There are two reasons for the shortage of vehicle heating system, one is the engine cooling system, and the other is the reason for the poor operation of heating control mechanism. When maintaining, first determine what the reason is, and then carry out corresponding maintenance. \x0d\ identification method 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. \x0d\ Problems with air volume control mechanism: \x0d\ 1. The car heater uses a blower to blow the heat from the small heater tank into the cab. If the air volume is insufficient or the distribution of cold and hot air is uneven, the heat of the small warm air tank cannot be dissipated, which will also cause the temperature of the warm air not to rise. At this point, first check whether the filter element is dirty or blocked, clean it, and replace it in time if necessary. \x0d\ 2。 Check the operation of each gear of the blower to ensure that each gear has 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. \x0d\ Possible problems in the cooling system: \x0d\ 1. Thermostats are often turned on or turned on too early, which leads to a large cycle of the refrigeration system too early and the external temperature is very low. Especially when the car is driving, cold air will quickly cool the antifreeze, the engine water temperature will not come up, and the warm air will not be hot. \x0d\ 2。 The impeller of the water pump is damaged or lost, so that the flow through the warm air small water tank is not enough and the heat cannot come up. \x0d\ 3。 There is air resistance in the engine cooling system, which leads to poor circulation of the cooling system, resulting in high water temperature and 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.