How to check the used car air conditioning system?

The air-conditioning system of a car is a relatively complicated system. The air-conditioning filter can be said to be the most important air-conditioning component. It is mainly to clean up air dust, pollen, and bacteria. These are mainly the interior of the air-conditioning system. create pollution. During the maintenance of the air-conditioning refrigeration system, we must fully clean the filter of the air-conditioner and clean it with a duct. If the filter of the air-conditioner cannot be cleaned effectively, the owner can replace it. Air conditioning filter.

When inspecting the air conditioner, the condenser of the air conditioner is mainly inspected, and the surface of the evaporator is cleaned. If the dust is too much, it must be cleaned in time, and the compressed air must be blown and treated. During the inspection, it is necessary to check the performance of the various switches and control elements, to check the reliability of their performance and whether the air conditioner has a lack of fluorine. If the refrigerant of the vehicle is insufficient, this may cause the air conditioner to promote the original cooling. If the refrigerant is added, then the use of the refrigerant must be taken care of, no leakage can occur, and the components on the surface of the compressor can be effectively observed, mainly on the surface and hose of the compressor. And the oil traces of the joint assembly department will be processed in a timely manner. Through comprehensive judgment, it can be shown whether there is a leak in the system, and if it can occur, it can be repaired.

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