How to maintain car air conditioning

With the advent of summer, car air conditioners are already a system that car owners must open, but car owners often overlook the maintenance of car air conditioners. Car air conditioners also need maintenance. If you do not maintain the time period, it will not only affect The health of our body can also lead to life-threatening, then how to properly maintain the car air-conditioning, Xiaobian teaches you a few tricks.

Car air conditioning maintenance

Maintenance of car air conditioner in use

1, the use of internal and external circulation

When the vehicle is driving, if it is driving to a dusty road or a windy weather, there are many roads where dust and leaves fly up to adjust the air conditioner to the inner circulation. When driving to a clean section, you can adjust to the inner loop. This can avoid and reduce the dust and debris blocking the air duct of the air conditioner to damage the air conditioner.

2, reduce air conditioning workload through heat dissipation

When the vehicle is parked in the sun for too long, the temperature inside the car is too high. Before using the air conditioner, the door of the window can be opened to dissipate heat, or the window can be opened to start the vehicle, and the air in the car can be dissipated through the air. When the temperature is lowered, turn on the air conditioner to close the window, thus reducing the workload of the air conditioner and increasing the service life.

3, turn off the air conditioner at low speed

When the vehicle is turned off in a state of stop or vulgar driving, such as when the traffic speed is very low, the driving speed is very low. If the air conditioner is not turned off, the air conditioner should be increased by stepping on the throttle to drive the air conditioner, which will not only shorten the engine. The life expectancy is also shortened for the life of air conditioner compressors.

4, intermittent use

When the vehicle is driving for a long time, when the air conditioner is turned on and the vehicle reaches a comfortable temperature, the air conditioner can be turned off for a period of time and then turned back on, so as to avoid the pressure increase of the air conditioner condenser caused by long-term use. Loss, improve the service life of air conditioners.

5, the use of air volume

After the air conditioner has been used for a long period of time, it is necessary to use the strong wind properly during use, because the air conditioner will inhale the dust in the air during use, and the proper use of strong wind can cause the blow to be sucked into the air duct to prevent dust. Dust blocked the air conditioning duct and caused damage.

Car air conditioning maintenance

Regular maintenance of car air conditioners

1. When the car air conditioner is used for a period of time, such as two or three months, about half a year or so, it is necessary to check the dust and debris covered by the air conditioner fan and the evaporator surface, and clean it in time to avoid the loss caused by heat dissipation.

2, the air outlet and air duct of the air conditioner should also be inspected and maintained regularly. Generally, the air conditioning duct air duct should be inspected and cleaned in one year or two years to avoid dust and debris blocking the air conditioning duct.

3. When the air conditioner is used for one year or more, especially when there is odor in the air conditioner, it is necessary to go to the professional maintenance point and 4S shop to disassemble and clean the air conditioning pipeline, filter element and evaporation box. Do a good job of maintenance to improve the service life of air conditioners

Car air conditioning maintenance

After all the above methods of car air conditioning maintenance, everyone has learned, is it very simple, so we must regularly maintain our car air conditioning, so as not to cause unnecessary trouble for us.


Citric Acid

Citric ACID (CA) with the molecular formula of CHO, is an important organic weak acid, colorless crystal, odorless, soluble in water, and acidic in solution. In biochemistry, it is the intermediate of citric acid cycle (tricarboxylic acid cycle), which occurs in the metabolism of all aerobic organisms. Citric acid is widely used as acidity regulator (GB2760—2014), flavoring agent and chelating agent.
Citric acid is the largest organic acid produced by biochemical methods in the world. Citric acid and salts are one of the pillar products in the fermentation industry, which are mainly used in the food industry, such as souring agents, solubilizers, buffers, antioxidants, deodorizers, flavor enhancers, gelling agents, toners and so on.Citric acid is also used in metal cleaning, fine chemical industry, sterilization and coagulation process.
Citric acid is a multifunctional precursor of many other organic compounds. Citraconic acid can be prepared by thermal isomerization of citraconic anhydride, and the required citraconic anhydride can be obtained by dry distillation of citric acid.

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