The Wall Switch Comparison Method Is Used To Perform Maintenance.

Using the Wall Switch checkpoint method for troubleshooting is a simple on-site diagnostic approach that allows technicians to quickly identify whether the power supply has been disconnected, thereby reducing initial reliance on complex testing equipment. The status of wall switches not only indicates circuit continuity but also serves as a starting point for diagnosing wiring problems.

Before starting troubleshooting, the power to the relevant circuit should be turned off, and a physical inspection should be performed using basic tools. The status of wall switches in different positions reflects the circuit's continuity. For suspected loose connections, abnormal circuit loads, or aging components, comparing the positions of multiple wall switches can help pinpoint the problem.