In the process of leaving the factory, if the manufacturer adds enough refrigerant to the car, the air conditioning system is still not cold, which depends on the situation. It's not that there is only one solution to a problem. There are many reasons why air conditioners don't cool, so I'm here to popularize several common fault cases.
First: condenser
The common condenser is fixed with the water tank, and the water tank and the condenser are installed at the front end of the engine. Therefore, when the vehicle is driving at high speed, impurities or catkins in the air will be adsorbed on the surface of the condenser, which will lead to the condenser's failure to dissipate heat in time and the refrigeration effect of the air conditioner will also decrease.
The processing method is relatively simple. Washing the car can wash the condenser surface with a water gun. Of course, because of the pressure problem of the water gun, you must control the distance between the water gun and the condenser during the flushing process, otherwise it will not only improve the effect, but also aggravate the non-heat dissipation of the condenser.
Second: the air conditioner lacks refrigerant.
This situation needs to be handled by the owner at his own expense. The warranty period of the manufacturer should be 5,000 kilometers for three months, so even if the owner thinks that the air conditioner is abnormal for one year, he can't claim compensation, so he can only pay for it himself, but I personally suggest doing it outside the garage because the price is suitable.
Hello, I am the manager of Michelin Chi Jia store, and I have many years of experience in automobile maintenance. Will bring you real and credible answers.
A year after the new car, the air conditioner is not as cold as before.
I think the air conditioner filter is too dirty. The air conditioning filter works not only when the air conditioner is turned on in summer. It is also possible to turn on warm air in winter. As long as you turn on the blower, it will work. In our shop, the air-conditioning filter element is usually replaced every time it is maintained. Anyway, it's not expensive, an ordinary ten dollars, about twenty dollars with carbon.
There are other problems that can also cause air conditioners to get cold:
1. Vehicle air conditioning piping system leaks. When an accident occurs in front of the vehicle, or because of product quality, assembly and other problems, the air conditioning pipeline leaks, resulting in insufficient refrigerant, which will also lead to poor air conditioning refrigeration.
2. The air conditioner condenser is too dirty. It will lead to poor heat dissipation and cold air conditioning. Catkin usually flies all over the sky in summer, so this situation is also possible.
Since yours is a new car, other reasons that may lead to poor air conditioning will not be described here.
My last advice to you: replace the air conditioner filter, wash the car, let the car washer atomize it with a high-pressure water gun, and clean the air conditioner condenser and water tank. The water gun should not be too close to the condenser, in case the water pressure is too high, and the heat sink on the condenser should be washed down. The air conditioning filter element is generally behind the co-pilot storage box, which is convenient to replace. If you buy it personally, it will cost about ten yuan. If you go to the garage to change it, it's about thirty, and 4S may be more expensive. You can find out where the air conditioning filter element of your car is and replace it yourself, which can save money and learn knowledge. Also remember, turn on the air conditioner to turn on the internal circulation, and turn on the external circulation for five minutes every half hour to update the air inside the car.
Pure mobile phone typing, please forgive me if there are typos.
Have a nice trip.
You can leave a message or a private message if you have any questions. I will reply to you one by one.
Dog days, the hottest time of the year has come. When the outside temperature reaches 35 degrees, the sun shines for about 15 minutes, and the temperature inside the car can reach above 60 degrees. If the air conditioner doesn't work well and the hair dryer isn't cold, driving becomes a punishment. According to the landlord, after all, the new car is only one year old, and it is more troublesome to drive if the air conditioning and refrigeration effect are good or not. What is the reason why the air conditioner is not cold? What should I do?
First, check whether the condensation network is covered with dust. The condensation net behind the net in the front of the car is covered with dust. If there is too much dust, the cooling effect will be poor. In this case, the owner only needs to wash the dust inside the condensation king with the faucet when washing the car, and this problem can be solved.
Second, the compressor is out of order. Refrigeration definitely needs the intervention of compressor. The principle of long service life of compressor. If the compressor travels 30,000 kilometers a year, it can travel 300,000 kilometers without any problems. Therefore, the compressor will not break down within 10 years. If a car hits this problem, it is likely that the compressor is damaged. It is recommended to go to the auto repair shop to check whether the compressor is working properly.
Third, the landlord said that the cooling effect was not good. Check whether the external loop is on? The external circulation is alternately used by external air and cold air in the car. It is suggested to check whether the external circulation is turned on, and it is suggested to turn on the internal circulation when the air conditioner is just turned on, so that the effect will be better.
Fourth, check whether the air conditioning filter element is too dirty, which will also cause the cooling effect to decline, and check whether there is a lack of freon, which will also cause this situation.
Fifth, the air conditioner damper motor is damaged. This kind of failure is rare, but it doesn't mean that there is no such opportunity. If there is something wrong with the flap motor, it will be in trouble. This belongs to the main switch of the air conditioning tuyere. If it is broken, the switch is broken. Even if the cold air of the air conditioner can come out of the gap, the effect will be very poor.
Sixth, check whether there is water in the pipeline. The automobile air conditioning refrigeration system has a drying tank, whose main task is to absorb the moisture in the refrigerant and prevent the refrigeration capacity from decreasing due to too much moisture in the refrigerant. If this happens, the refrigerant circulation will not be smooth, the resistance will increase or it will not flow at all, which will lead to the decline of the refrigeration effect of the air conditioner and even the refrigeration failure.
Summary: The above are basically the reasons for the poor refrigeration of automobile air conditioning. There are many small reasons that are not easy to check and maintenance is more troublesome. Therefore, we can check according to the above points. If there is no such problem, there is basically no big problem.
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The air conditioner of a new car is not as cold as it used to be, and there may be the following problems.
1. The condenser is dirty. Condenser is a heat dissipation component in automobile air conditioning system, which is generally located in the front of the car head, and it is easy to attach all kinds of dust and debris leaking from the gap of the hood. For example, catkins in spring and so on. Adhesion to the condenser will lead to poor heat dissipation of the air conditioner condenser, which will directly lead to the air conditioner not being cold. Just cleaning the condenser.
2 The air cleaner element is too dirty. With the increase of service time, more and more dust and impurities will be adsorbed on the filter element. When dirt accumulates to a certain extent, the surface of air filter element is easily blocked, which leads to insufficient air output of air conditioner, and then affects the normal cooling effect of air conditioner. In addition, if there is an odor in the car after the air conditioner is turned on, it can generally be judged that the air filter is too dirty. Generally speaking, it is recommended to clean or replace the air filter every 5000 kilometers.
3. Air conditioning cycle mode The air conditioner in the car is generally in the external cycle mode by default. If your air conditioner is not cold, see if it has been in long-term external circulation mode. Because the external circulation will bring in high-temperature air from the outside, the refrigeration effect is naturally not as good as that of the internal circulation. As the car runs, it needs a lot of power to cool, and the effect is definitely not as good as that of internal circulation.
4. Refrigerant Confirm whether the amount of refrigerant (including snow seed, Freon, R3 134a) is normal. Insufficient refrigerant or too much refrigerant will cause the air conditioner to get cold. In general, it is normal to add refrigerant once every 2-3 years. If you need to add refrigerant frequently, it may be because the air conditioning pipeline of the car leaks, so you need to go to a professional auto repair shop for inspection and maintenance.
5. Faults caused by other system components If all the above situations are eliminated, it is possible that a few components fail, resulting in cold air conditioning. Such as air conditioning compressor, air conditioning temperature sensor and so on. In this case, it is also necessary to go to the 4S shop to find a professional master to repair it.
Check the air conditioning filter and clean the condenser, followed by the lack of refrigerant.
Check whether there is a shortage.