Air Conditioning Maintenance Process:

1. Comprehensive Inspection. When any air conditioner encounters a malfunction, a thorough check is required. Initially, inspect the machine's pressure and the operating temperatures at various points in the system; for split systems, this must be done with both indoor and outdoor units connected. To measure the compressor exhaust pressure, please connect the pressure gauge when the machine is stationary to avoid burns from high temperatures during operation. Feel the temperature of the compressor exhaust to the condenser section with your hand, first use your fingers to quickly test some temperatures to prevent injury.

2. Welding Operations. Prior to welding, the refrigerant Freon must be released from the system. Always wear protective eyewear when welding to prevent eye injury; during the release of Freon, operators should not face the process opening or discharge towards others to avoid frostbite from Freon; when welding, adhere to relevant welding operation requirements to prevent poor installation or injury to others.

3. Power Operation. When repairing the outdoor unit of a split system independently, power operation is prohibited when the high-pressure valve or low-pressure valve is 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 cover are properly installed.