Air Conditioning Maintenance Process:

1. Comprehensive Inspection. When any air conditioning units encounter malfunctions, a thorough check is required, initially detecting parameters such as machine pressure and operating temperatures at various system points; for split systems, this must be done with both indoor and outdoor units connected; connect a pressure gauge to detect the compressor exhaust pressure, ensuring it is done when the machine is stationary to avoid high-temperature burns during operation; use your hand to feel the temperature of the compressor exhaust port to the condenser section pipeline, first quickly test some temperatures with your fingers to prevent injury.

2. Welding Operations. Prior to welding, release Freon from the system. Always wear protective eyewear during welding to prevent eye injury. Avoid facing the process opening or releasing gas towards others during Freon release to prevent frostbite. Adhere to welding operation requirements to ensure proper installation and prevent injury to others.

3. Power Operation. When repairing the outdoor unit of a split system individually, power operation should not be conducted with the high-pressure valve or low-pressure valve closed to avoid accidents such as system bursting due to excessive pressure or explosions caused by the compressor running in a vacuum. When inspecting the outdoor fan system, power operation is required, and it must be ensured that the air conditioner panel and fan grille are properly installed.