1. CHECK IF THE MICRO SWITCH IS DAMAGED. IF THE SHRAPNEL OF THE MICRO SWITCH IS DAMAGED, REPLACE THE MICRO SWITCH.

2. CHECK IF THE POSITION OF THE MICRO SWITCH IS DEVIATED. WHEN LIFTING THE BRUSH AND SQUEEGEE HANDLE. IF THE LIMIT ROCKER CANNOT TRIGGER THE MICRO SWITCH, PLEASE ADJUST THE POSITION OF THE MICRO SWITCH.