Summer reminder-car air conditioning system[汽车修理知识]

Car air conditionerThe most common failures of the system are refrigerant leakage and poor cooling.ForCarThere are three basic requirements for the maintenance of air-conditioning system failure: that is, sophisticated equipment (such asVacuum pump, Refrigerant leak detector, system pressure gauge, refrigerant recovery machine, etc.); experienced professional and technical personnel; pure quality parts. Therefore, if you want to ensure the quality of repairs, you must choose a repair shop carefully. It is not possible to repair car air-conditioning system failures in any place. The cause of refrigerant leakage is in the pipelineSealantRing aging, abnormal refrigerant pressure, damage to system components, etc. After the leak is repaired, another necessary procedure is to replenish the refrigerating machine oil, evacuate the system and charge it with refrigerant.The quality of refrigerant and refrigeration oil must be guaranteed during the maintenance process. If inferior or different types of refrigerants are used, it will causeCompressorAbnormal, poor refrigeration, pipeline corrosion, leakage, pipeline explosion, damage to important parts, etc.If inferior or different types of refrigeration oil are used, it will appearCompressorAbnormal, the refrigerant becomes turbid, and the refrigeration is not good. For the diagnosis of poor refrigeration, the technical level of the maintenance personnel is required to be very high, and the knowledge involved is relatively professional. The most common and simplest among the many failures of poor cooling is the poor heat dissipation of the air conditioning system. Poor heat dissipation causes the refrigerant to fail to circulate in the system pipeline according to the pressure, temperature and state of matter required by the design. The consequences will definitely be accompanied by poor cooling of the air-conditioning system and cause explosion or leakage of the high-pressure pipeline.The refrigerant (134A or R12) of automobile air conditioners will not be consumed under normal conditions, and the items that need maintenance are mainlyCondenserCleaning and heat dissipationFanWork status. Related: ·Check the method of engine oil and gas blow-by
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