Many car owners will encounter problems with car air conditioners, but according to the actual maintenance, most of them are not serious faults. As the temperature rises, some car owners find that the cooling effect of the car air conditioner is not good. In response to this situation, car owners can learn simple self-inspection knowledge, so as to prevent the vehicle from being “slightly ill”.
With the increase in the use time of the car, the cooling capacity of the air conditioner is gradually weakened, but the reason is not clear. Most of the explanations given by the maintenance party are refrigerant leakage. compressor, etc. There are only three or four common reasons for the poor cooling effect of automobile air conditioners. Car owners can learn simple self-inspection knowledge, make preliminary judgments on faults, and try to be aware of them, so as to prevent vehicles from being “slightly ill”. First, turn on the air speed adjustment switch. As the adjustment gear increases, test the change of air speed at the air outlet. If the air outlet volume is small and the change is not obvious, it should be considered whether the air conditioner filter element is too dirty to affect the air outlet volume, and the air conditioner filter element can be replaced. solve. Judging from the actual maintenance situation, these types of problems and the foreign matter stuck on the surface of the condenser are the important reasons for the poor cooling effect of the air conditioner, and it is not troublesome to deal with.
For most household cars, when the “A/C” switch is pressed and the air conditioning system is activated, people will hear a slight “click” from the engine compartment, which is the electromagnetic clutch suction. The sound of closing, indicating that the air conditioner compressor is working. The owner can judge whether the above links are normal through this detail. If the refrigerant is seriously insufficient, the compressor may not run after the relevant sensors identify it, and the vehicle needs to be sent to a professional repair shop to check the specific reason.
The aging of the sealing ring and the damaged pipeline will lead to refrigerant leakage. It is the key to let professional personnel and equipment find out the leakage location and repair it, instead of simply adding refrigerant. Otherwise, the “root of disease” has not been removed. At present, small repair shops usually use simple refrigerant filling equipment, which has limited ability to monitor the pressure changes of the air conditioning system. At the same time, monitor the air conditioning system for leaks. In addition, no matter where the air conditioning system fails, after the maintenance is completed, the owner should not forget to let the maintenance party detect the temperature of the evaporator outlet duct, so as to ensure a good cooling effect.