The reason why there is no refrigeration after replacing the air conditioning filter screen is the operation error:

　　1、空调开关不开:你要知道空调开关是空调，有些新车车主很可能会犯这样的错误。

　　1. Air conditioning switch does not open: you need to know that the air conditioning switch is air conditioning, some new car owners are likely to make such a mistake.

　　2. 出风口关闭或风向不对:要确保出风口是开着的，没有异物堵住出风口。另外，你应该知道出风口的风向调节。

　　2. The air outlet is closed or the wind direction is wrong: first, make sure that the air outlet is open and there is no foreign matter blocking the air outlet. In addition, you should know the wind direction regulation of the air outlet.

　　3.天气炎热时的外循环:此时，外循环无疑会导致热空气从外面进入车内，空调的制冷效果自然会变差。因此，在天气炎热、无特殊情况下，应尽量采用内循环方式。

　　3. External circulation in hot weather: at this time, the external circulation will undoubtedly cause hot air to enter the car from the outside, and the cooling effect of the air conditioner will naturally become worse. Therefore, in the hot weather, without special circumstances, we should try to use internal circulation.

　　4. 当汽车处于高温状态时，打开空调:特别是长时间暴露在烈日下的车辆，记得先打开窗户让热空气出去，然后再打开空调。

　　4. When the car is in a high temperature state, turn on the air conditioner: especially for the car exposed to the hot sun for a long time, remember to open the window first to let the hot air out, and then turn on the air conditioner.

　　5、室外温度过低，导致空调不工作

　　5. The outdoor temperature is too low, resulting in the air conditioner not working

　　不制冷解决方案:

　　Uncooled solution:

　　1.选择正常的维修店和正常的产品，滤网堵塞时，就必须选择合格的制冷剂进行维修，合格的制冷剂在汽车空调中起到了关键的作用。

　　1. Select normal maintenance shop and normal products. When the filter screen is blocked, qualified refrigerant must be selected for maintenance. Qualified refrigerant plays a key role in automobile air conditioning.

　　2.有时汽车空调中的制冷剂不足或太少，会导致汽车空调制冷失效，而汽车空调不足的原因大多是由于系统中制冷剂的少量泄漏造成的。

　　2. Sometimes the refrigerant in the air conditioner is insufficient or too little, which will lead to the refrigeration failure of the air conditioner, and most of the reasons for the lack of the air conditioner are caused by a small amount of refrigerant leakage in the system.

　　3.在整个汽车空调系统中，冰箱中制冷剂和机油过量也会导致汽车空调过滤网堵塞，导致汽车空调不制冷。它的阻力会增大，制冷剂到膨胀阀的流量也会减小，导致制冷量不足。

　　3. In the whole automobile air conditioning system, too much refrigerant and oil in the refrigerator will also cause the filter screen of the automobile air conditioning to be blocked, which will cause the automobile air conditioning not to refrigerate. Its resistance will increase, and the flow of refrigerant to the expansion valve will decrease, resulting in insufficient cooling capacity.

　　4.汽车空调压缩机的传动皮带松了,压缩机工作时将滑动,导致传输效率的降低,减少压缩机的转速,和输送压缩制冷剂的减少,从而导致汽车空调制冷的失败。

　　4. The transmission belt of the automobile air conditioning compressor is loose, which will slide when the compressor works, resulting in the reduction of transmission efficiency, the reduction of compressor speed, and the reduction of transmission of compressed refrigerant, thus leading to the failure of automobile air conditioning refrigeration.

　　以上是济南奥迪汽车维修小编为大家介绍的相关内容，想要了解更多内容，欢迎访问网站：http://www.lutongqixiu.com

　　The above is the relevant content introduced by Jinan Audi automobile maintenance editor. To learn more, please visit the website: http://www.lutongqixiu.com