Maintenance Knowledge of the Vehicle Air Conditioner

2019.06.25

If the customer is located in the region with four distinct seasons, conduct routine maintenance for the vehicle air conditioner according to routine maintenance common sense for four seasons; if the customer is located in the region hot all around the year, conduct routine inspection and maintenance for the vehicle air conditioner according to routine maintenance common sense in summer:

Routine inspection and maintenance in spring: At the beginning of air conditioner operation in spring, check whether the compressor oil quality is normal, clear and transparent, without blackening or deterioration, whether the oil level is normal (1/3 - 3/4), whether the pipelines are connected properly without oil leakage, whether the tie-in contacts are connected properly, whether air volume of the fan is as normal, whether the belt is loose, and whether the evaporator and condenser core are normal. Note: Before using the air conditioner, first slowly turn the compressor clutch by hand or with tools, to facilitate compressor oil lubrication, thus avoiding compressor damage due to air conditioner startup.

Routine inspection and maintenance in summer: Summer is the peak season for use of the air conditioner. Once a week, check whether the pipeline connection and the compressor are in the normal condition; check whether the wiring harness connection is loose, and if so, tighten it. Once a month, clean the dust screen and the suction strainer, so as to improve the cooling effect of the air conditioner.

Routine inspection and maintenance in autumn: In autumn, it is to enter the off season for air conditioner use. The major contents of routine maintenance are to check the compressor, making sure that the quantity of the compressor oil is not decreased, and that the compressor oil is clear without blackening or deterioration. Check whether the screws at the pipe connection are loose and whether oil leakage occurs. Clean the dustproof screen and the suction strainer once a month, to facilitate air exchange and use of the air conditioner.

Routine inspection and maintenance in winter: Winter is the off season for air conditioner use. To drive the vehicle in winter, do not remove the compressor belt. Conduct regular inspection for the compressor oil quantity every month. Operate the air conditioning system at least once every month for about 10 - 30 min. each time. The maintenance is to fully lubricate all pipeline connections of the system and effectively prevent refrigerant leakage in winter.

For more specific information, refer to the maintenance manual for the vehicle.

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