First check whether there is enough refrigerant, which can be estimated by feeling the temperature difference between the inlet and outlet lines of the dryer, or by checking the manifold pressure gauge.
Secondly, clean the dust and dirt in the air outlet and the cab frequently. This not only contributes to the aesthetics of the car, but also to the health of the driver and passengers.
Third, regularly check whether the liquid level of the refrigerant in the air conditioning system is normal. There are several ways to check the liquid level, but the most common and easiest is to use the dryer's peephole.
Fourth, check whether the compressor belt is good. If the belt surface and the pulley groove are in contact with a bright side, and there is a "squeaking" noise when starting the air conditioner, it means that the belt slips seriously and the belt and pulley should be replaced.
Fifth, check the air conditioning system hoses and fittings for oil stains. If leakage is found, consult the maintenance department for solutions in time.
In addition, when the car air conditioner is used for the first time in a different season, it is best to sterilize and deodorize the air conditioner system. This is because the long-term “vacation” of the air conditioner system will breed fungi and molds, which not only make the air emit an unpleasant musty odor, but also harm the car. Injury to the health of those inside. This work can be carried out in a repair shop, or you can purchase a special spray for sterilization and deodorization by yourself.
