The basics of air conditioning maintenance, the basics of air conditioning maintenance, the basics of air conditioner maintenance, the general methods of trouble analysis for air conditioners, consisting of refrigeration and electrical systems, are in a state of operation that is closely related to the working environment and conditions, so the problem analysis of air conditioners needs to be considered in a comprehensive manner. The causes of fa

1. The general method of air conditioners for air conditioner failure analysis consists of refrigeration and electrical systems, whose operational status is closely related to the working environment and conditions, so that failure analysis of air conditioners requires integrated consideration. The causes of failure can be classified into two categories: extra-machine causes or man-made malfunctions (especially the normality of the power supply)