What is the reason why the cooling effect of car air conditioner is not good?

Refrigerant leakage, insufficient cooling, and the air conditioning filter element has not been replaced for too long and is clogged.

It is necessary to check the tightness of the compressor belt; check whether there are oil stains on the hose joints of the air conditioning system; clean the condenser surface regularly; check the refrigerant liquid level; and replace the flipper motor.