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May Automotive Parts Manufacturing & Supplying Co,.Ltd
May Automotive Parts Manufacturing & Supplying Co,.Ltd

The Location and Fault Analysis of the Evaporator of Automotive AC Evaporator


Where is the auto air conditioner evaporator located?


The location of the auto air conditioner evaporator: The auto air conditioner evaporator is installed in the evaporator box, which is located in the instrument panel on the co-pilot's side. Generally located behind the air conditioning filter.


The car air conditioning refrigeration system consists of a compressor, condenser, liquid storage dryer, expansion valve, evaporator, and blower. The evaporator is hidden in the evaporator box and is generally not easy to be discovered.


The function of the auto air conditioner evaporator is to convert high-pressure liquid into gas, and then blow the gas out through the blower to achieve the refrigeration effect. In fact, the function of the auto air conditioner evaporator is the same as that of the indoor unit of a home air conditioner.


If the auto air conditioner evaporator is dirty, the cooling effect of the car air conditioner will be reduced. So if the cooling effect of the air conditioner is poor, it is likely that the evaporator is dirty. If this is the case, try cleaning the evaporator to see if the problem can be solved.


If the car air conditioning does not cool, it may not necessarily be a problem with the air conditioning. It is very likely that it is a normal phenomenon caused by some objective factors.


The causes of failure and solutions of the auto air conditioner evaporator


The auto air conditioner evaporator is located in the co-pilot's glove box, behind the air conditioning filter. The function of the auto air conditioner evaporator is to convert high-pressure liquid into gas, and blow the gas out through the blower to achieve the refrigeration effect.


Causes of failure of the auto air conditioner evaporator:


  • The adjustment range of the expansion valve is too small, and the low-pressure pressure is too low;

  • The system refrigerant is too small, and the evaporating pressure is too low;

  • The internal circulation filter screen is blocked;

  • The temperature sensor fails, and the compressor does not shut down.


The solution to the failure of the auto air conditioner evaporator is:


  • Check whether the temperature control temperature sensing package is in the correct position;

  • Replace the temperature control regulator;

  • Check whether the air conditioning computer control has a fault.


All parts of MAPMS are developed by a professional and experienced team and manufactured by a factory that has obtained IATF16949 certification. All parts are tested by MAPMS internal quality department using diagnostic instruments and external professional testing centers.


Currently, MAPMS has received extensive praise worldwide, and has established strong partnerships with wholesalers, and has rapidly become a leader in this field with its characteristics of excellent quality, wide product line, rapid response, short delivery time, rich experience, and specialization. MAPMS will continue to update its product range. Welcome to consult.

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