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 a manifold pressure gauge.
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.
Second, clean the air vents and cab frequently for dust and dirt. This not only contributes to the beauty of the car, but also is beneficial to the health of the occupants.
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 way is to use the peephole inspection of the dryer.
Fourth, check whether the compressor belt is good. If the surface of the belt 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; if the belt is too loose, it should be adjusted, otherwise the air conditioning system will be easily cooled.
Fifth, check the air conditioning system hoses and fittings for oil stains. If leakage is found, consult the maintenance personnel for the solution in time.
