In the summer, air conditioners are used more frequently, which can easily lead to damage. To avoid being given 'virtual quotes' by air conditioner repairmen, everyone should know the information below. After a period of use, air conditioners often develop some unusual problems that make users worry. When calling a repairman, some people use tricks in common stages such as pumping gas, one place is about to break, another place is broken, another place cheats on the height to increase the cos...