Auto air -conditioning parts are really troublesome，It affects comfort，Second, the compressor consumes the engine power but does not produce it. It is also a great waste。

The refrigeration principle of automobile air -conditioning components is the same as that of home air -conditioning products

For the car，It is different for them to turn on warm wind in winter and air conditioners in summer，Automotive air conditioner is refrigerated by compressor components，And the warm wind is heated by the temperature of the engine component，and the air in the outside of the car to increase the internal temperature of the car，Air conditioning power consumption is mainly due to long working hours，In fact, in my experience, the air conditioner is not cold. Most of the cases are not too serious，Let me talk about some situations encountered in the actual situation，Help everyone understand the reason why the automotive air -conditioning part is not cool before，The cooling principle of automobile air -conditioning components is the same as home air conditioner，But because the air conditioning structure and volume are different，Therefore, the refrigerant product used is different。

Although so, we still have to treat it in a seabet ioscientific and rigorous attitude，First measure the air conditioner pressure，If the high and low pressure are low, it is basically a lack of cold media products，Add to the pressure to add to the pressure，Can see the results，After changing refrigerant products，The system "refrigeration" is obviously sufficient，The evaporation box will fall to 3.3 degrees，Then the "jump" compressor clutch (to prevent the evaporation box from freezing damage，Forced compressor does not work)，The pressure of refrigerant products has dropped by 1Bar，Turned to 14bar。

Adding too much refrigerant products will cause too high system pressure

The air conditioner system is stress，Because the compressor part is suppressed，When the refrigerant product is added too much or the pipeline is blocked, the system pressure will be too high，At this time, the control system will disconnect the compressor electromagnetic clutch to stop the compressor，Avoid the pressure from continuing to increase the damage system，At this time, the compressor is not smooth，Of course it won't cool，The solution is very simple，System pressure，After confirming that the pressure exceeds the standard, excrete some refrigerant products to restore normal pressure。

Compressor parts are the core of air -conditioning products

Pressure switch components Damaged evaporator are also called evaporation boxes，The air duct located under the dashboard，Refrigerant products here vaporize heat and absorb heat to produce low temperature，The airflow is reduced from the small passage on the evaporator component to be reduced when passing through the temperature，Because the evaporator components have always been vaporized and absorbed by refrigerant material，Therefore, its temperature is very low，Easy frost，seabet loginOnce frost, it will block the evaporator component，so that there is no way to pass the airflow through，So there is a temperature sensor component on the evaporator component，When it is close to the frost temperature, it will stop the work of the compressor component，The compressor part is the core component of the air conditioner，The pressure of refrigerant material is abnormal、Line failure、Damage or belt relaxation of temperature sensor，will cause compressor parts to cause failure，Affects the refrigeration effect。

Excessive dirt of condenser components will cause heat dissipation to reduce

The evaporator is too dirty and the air flow is reduced，Decreased heat exchange efficiency，Do not cool when the wind speed is large，When the wind speed is small, it is normal，Ling Ning instrument components are located at the head of the car，​​and the cooling system radiator components are arranged side by side，The volume is about half of the radiator component，There are two fans at the head of some cars，Heat the car cooling system and condenser components, respectively，If the condenser part is too dirty, it will cause the heat dissipation effect to decrease，Cold efficiency is naturally low，But the condenser components are almost dirty to this extent，Use air conditioners in this special environment in the car，In addition to ensuring comfort，To ensure your health。

The catkins in summer will block the condenser components and affect heat dissipation，Air conditioning filter element components are too dirty and blocked out of windy car air -conditioning components，Air conditioning pump clutch components are not working，Damage of power components of the winding machine，Volume adjustment motor components are not working，The above these are important factor Seabetthat causes the non -refrigeration of automobile air -conditioning components，Therefore, everyone needs to take the right medicine。