In the hot summer, car air conditioners may be used as often as radios. However, for this seemingly simple car air conditioner, there are more and more private car owners who do not know how to use it, and there are many jokes caused by this. How to scientifically maintain car air conditioners is actually a lot of knowledge.
Due to the complex working environment, car air conditioners need more “care” than household air conditioners.
Check the compressor belt
If the surface of the belt meets the pulley groove and the side is shiny and there is a “squeaking” noise when starting the air conditioner, the belt is slipping If it is serious, 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.
Inspect the air conditioning system hose connections for oil stains. If leaks are found, go to the repair office in time to solve them.
Cleaning the condenser
In summer, when using the air conditioner, flush the condenser with a hose, because the cleaning of the surface of the condenser of the car allows the heat to dissipate to the Go outside. Regular cleaning of the condenser surface can greatly improve the cooling effect of the air conditioning system.
Checking the refrigerant level
Using the viewing window of the dryer, you can check the refrigerant level. The glass peephole is usually installed on the cover of the dryer to run the engine and air conditioning system, and observe the flow of refrigerant through the glass peephole. If the air conditioner is working normally, you can see the clear refrigerant flowing continuously through the peephole, and occasionally carry some small air bubbles at high temperature, and you can see small air bubbles when the air conditioning system is turned off.
Enough refrigerant
This can be estimated by feeling the temperature difference between the inlet and outlet lines of the dryer, or by the manifold Check the pressure gauge. Of course, these jobs need to rely on the repair shop.