What to do if the air conditioner is not cooling? Is it necessary to add fluoride

Trivial one: It is charged with 200 yuan freon, which is definitely only 50 yuan.

Citizen Chen’s air-conditioning refrigeration performance is not very ambitious. The high temperature of 37 degrees Celsius (℃) made her have to find an air-conditioning repairer to repair the central air-conditioning. Nitrogen is an inert gas with a small expansion coefficient and is almost non-existent due to heat. Pressure changes caused by expansion and contraction. If the pressure gauge drops during the test, you should check whether there is a problem with the welding of the refrigerant pipe. After the apprentice arrived, he tried to test the air blowing in by the air conditioner with his hands, and then opened the baffle of the air conditioner discord, showing that the air conditioner lacked Freon and needed to "add fluorine". Girl Chen received 200 yuan freon expense (expense) according to the request. After the apprentice "filled fluorine" the air conditioner, he turned on the air conditioner again, and the cool air coming out of the air vent could be clearly seen. Air conditioning repair

More than a week later, the air conditioner in Ms. Chen's house had to be moved, but the disciple of the mover explained that the Freon in her air conditioner is very low and may be lacking in quantity. Isn’t it the Freon that has just added 200 yuan? How can there be a lack of quantity? "There is only a charge of 50 yuan here, and the people who help you'add fluoride' don't add enough, so they can make a little more money." The reply of the master made Miss Chen suddenly realize. Shanghai Central Air Conditioning Project

Reporter's query: "Filling" air conditioners with "fluorine" is for the vast majority of citizens to charge more and less basics. Insiders are not allowed to enter. The secretaries in the industry want reporters. Generally, the repair apprentice will only report you a total fee, and the basic insider will not tell you which pricing method is adopted. Even if "fluoridation" previously stated that you are paying by pressure, the public can't understand it as usual. He can adjust the pressure before "fluoridation" to a very low level, or adjust the pressure after "fluoridation" If it is too high, there is a price difference to make.

Furthermore, in practice, the capacity of the air conditioner is not suitable. For example, the amount of fluorine leon that can be added to an air conditioner is 2 kg, but the teacher's affiliate will say that it is 3 kg, but in practice it may only be 1 kg. Because there is a lot of stuffiness, the cost of freon filling is extremely solid. Shanghai air conditioning design

Tricky 3: As long as the repair is reported, fluorine will be added.

The air conditioner in Mr. Wang’s home, a citizen, had good and bad cooling effects. Every time he called his disciples to repair, the general secretary asked him to add fluorine. "It used to be the third year. It costs two to three hundred yuan at a time. "Why do you always add freon to the air conditioner? Will Freon be used less and less?

Reporter's query: Many citizens of the Trust who have repaired air conditioners have encountered the same situation where Teacher Wang was "fluorine-added" one after another. Mr. Wu from the after-sales repair department of Five Star Electric told reporters that the Freon in the air conditioner is generally open to the cycle. If there is no leakage, it will not be reduced due to the increase in the number of years of use. Some air conditioners that have been used for 10 years have never been added with Freon. There are only a handful of cases where the effect is still very good.

Therefore, when citizens find that their own air conditioners have a bad cooling effect, don’t immediately think that it is necessary to add fluorine, because there may be many reasons for the poor cooling of the air conditioner, such as whether the status of the external unit will affect it. (Influence) Heat dissipation, whether the filter of the internal machine is blocked, etc. As usual, the window machine is not easy to leak fluorine, and there is no need to add fluoride, and the air conditioner installed on the track and stationary in one place does not need to add fluoride.

In addition, adding more Freon to the air conditioner is not the better. Adding too much fluorine will shorten the load and increase the load of the air conditioner. The air conditioner will be forced to shut down, which will loosen the shrinking machine.

Tricky four: intentionally create "blocking"

Watch out for adulteration, broken, destroyed

During the interview, the insiders of the industry still shuddered. Some air conditioners did not start to cool because they were not caused by fluorine deficiency, but by some "black-hearted" repairers doing extremity actions and other rewards. "For example, some repair disciples will deliberately release Freon during the repair process (guò chéng), can turn off the valve, adulterate Freon, and so on.

In the process of disassembly or repair, some workers will deliberately turn off the valve, and later stated that the consumer is due to the natural consumption of air conditioners and leakage of freon. It is important to add freon. After freon is added, the valve is opened again, which is a simple monopoly ( Monopoly), so consumers paid two to three hundred yuan more.

"Some canned freons are easier to adulterate." Master Zhao, who is engaged in air-conditioning repairs, told reporters that some repairers have mixed water or alcohol (the term is called ethanol) into some of the freon containers that have been used. If the air conditioner uses freon mixed with water, it will affect the efficiency of the air conditioner. After a period of time, the cooling effect of the air conditioner will be affected. Freon.