We all know that the working basis of air conditioners is refrigerant. If there is a problem with the refrigerant, it will cause problems with the air conditioner, and the cooling effect will be reduced. So what causes the air conditioner refrigerant leak?​​

　　1. Reasons for the quality of the air conditioner itself

　　There are quality defects in the air conditioning and refrigeration system itself, such as microscopic trachoma leaks. Since the refrigeration system contains a certain amount of refrigeration oil, the refrigeration oil will play a certain role in oil film sealing for microscopic trachoma leaks when the refrigeration system is not turned on. The agent leaks slowly.​​

　　When the air conditioner is turned on, the refrigerant and refrigeration oil in the refrigerant system is in a circulating flow state, which will accelerate the effect of refrigerant leakage.​​

　　This kind of slow leakage of refrigerant generally takes three months or even up to one year before the "symptoms" of air conditioning failures appear, such as not being cold enough or the low pressure operating pressure being low and entering a protection state.​​

　　2. Vibration friction perforation leakage

　　Generally, this situation occurs in the outdoor unit. Due to the close installation distance between the pipeline components and the long-term vibration and friction, the refrigerant leaks from the perforation of the pipeline components.​​

　　3. Nut cracking and leakage

　　After long-term use, the copper nut is tightened back to the bell mouth for a long time, and the quality performance decreases year by year, resulting in cracking and conduction, reducing the airtightness of the bell mouth, resulting in refrigerant leakage.​​

　　The above content is the reason for the leakage of the air conditioner refrigerant, you can refer to the following. If a leak does occur, you should still consult a professional.