What is the reason why there is no warm air in the car?

The reasons why the automobile air conditioner does not heat are the blockage of the warm air tank, the blockage of the air conditioner filter element and the aging of the air conditioner motor. Blockage of heating tank: The low temperature of hot water inlet pipe and outlet pipe of heating tank is a sign of poor circulation of empty water tank. The radiator of the empty water tank is very thin. After long-term use, the scale and impurities in the coolant will block the pipeline of the radiator of the empty water tank, resulting in poor circulation of the water tank and unable to provide enough heat to convey warm air to the cab. This situation belongs to the internal blockage of the empty water regulating box. Solution: Check the heating water tank to see if it is blocked. If so, replace it. Air filter plug: the main function of air conditioning filter is to filter out impurities in the air of air conditioning system. The air conditioning filter element is blocked, and the air intake air conditioning system is insufficient and empty. Solution: Just clean or replace it. Aging of empty motor: When the motor is aging and the working efficiency is reduced, there will be a situation that the noise is high but the air volume is small, and the heat of the warm air box cannot be transferred to the cab in time and effectively, resulting in the situation that the warm air in the air is not hot. In addition, the blockage of air conditioning pipes is also one of the reasons for the lack of warm air. Solution: Go to the 4S store to replace new parts.