汽車空調有灰塵主要是對三個地方進行清洗，分別是空調管道、空調濾芯和蒸發器。空調濾芯作用是過濾空氣中的灰塵、花粉等固體雜質。汽車空調長時間使用，空調濾芯就會積累很多灰塵，所以要進行空調濾芯的清洗。
汽車空調常見故障
1.空調系統不工作，系統沒有壓力
這個是大家常見的一種情況，那就是製冷劑洩漏，基本上只能去店裡處理了，找到洩漏點進行更換、維修，然後加製冷劑就可以，但是注意一個問題，儘量找個靠譜的地方來修，不然弄不好回頭還得漏。
2.壓縮機地壓低、高壓不變，空調不製冷，排出管表面溫度高、膨脹閥進出管無溫差這個和上面的問題基本上算是一個吧，其實就是膨脹閥感溫頭磨破，冷媒洩漏導致的，更換膨脹閥，注入製冷劑即可.
3.運行正常，降溫效果不好，出風口風量不足
這人也算是常見現象了，如果你長期沒有清洗過空調箱通道，那麼直接去資訊就行，實際上就是其中髒物過多導致的拆卸下蒸發器芯體和過濾網進行清洗就可以。
4.空調運行正常，降溫效果不好，高壓壓力和低壓壓力均偏高這個其實檢查起來有點麻煩，但是據說好多豪車遇到過這個問題，實際上就是製冷劑加多了，有些人覺得加少了怕不製冷就要多加，實際上加多了也容易出問題
5.高低壓偏低，製冷效果不好
其實這個問題特別好解決，那就是因為接頭鬆動了，這個有的動手能力強的朋友自己都能搞定，那就是把管路的各個接門擰緊了就行，比較簡單的問題了。
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There are three main areas to clean a dusty car air conditioner: the air conditioning ducts, the air conditioning filter and the evaporator. The air conditioning filter is designed to filter out dust, pollen and other solid impurities from the air. When a car air conditioner is used for a long time, the air conditioner filter will accumulate a lot of dust, so it is necessary to clean the air conditioner filter.
Common faults of car air conditioners
1. Air conditioning system does not work, no pressure in the system
This is a common situation, that is, the refrigerant leak, basically can only go to the repair shop to deal with, find the leak point to replace, repair, and then add refrigerant can be, but pay attention to a problem, as much as possible to find a reliable place to repair, otherwise it is not good back to the leak.
2. compressor ground pressure low, high pressure remains unchanged, the air conditioning does not produce cold, the discharge tube surface temperature, expansion valve inlet and outlet tube no temperature difference between this and the above problem is basically a bar, in fact, is the expansion valve temperature head wear broken, refrigerant leakage caused by the replacement of the expansion valve, injection of refrigerant can be.
3. normal operation, cooling effect is not good, the outlet airflow is not enough
This person is also considered a common phenomenon, if you have not cleaned the air conditioning box channel, then go directly to the information on the line, in fact, is too much dirt caused by the disassembly of the evaporator core and filter for cleaning can.
4. air conditioning run normally, cooling effect is not good, high pressure pressure and low pressure are high this actually check up a little trouble, but it is said that many luxury cars have encountered this problem, in fact, is to add more refrigerant, some people think that add less afraid of not making cold to add more, in fact, add more is also easy to have problems
5. High and low pressure is low, the cooling effect is not good
In fact, this problem is particularly good to solve, that is, because the joint is loose, this has the ability to do strong friends can handle themselves, that is, the pipeline of the various joint door screwed on the line, relatively simple
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