During installation, the elevator hoistway light cannot change color, the control signal is abnormal, the Carl guidance upgrade program has not been solved, and the light changes from no color to no light<br>The operation screen during installation shows abnormal program error or abnormal. The circuit board and control screen have been replaced<br>During installation, the intermediate plate and the platform are scratched. "The intermediate plate is soft, the gap between the intermediate plate and the platform is small, the width of L-type intermediate plate is large, and the shape change is obvious.<br>"" install cushions on the platform to temporarily reduce the sound of scratching<br>It is suggested to optimize the design of intermediate plate“<br>During the installation process, the platform safety frame rubs against the side cover plate. The deformation of the platform installation frame towards both sides is large, and the gap between the platform installation frame and the side cover plate is small. Fix the frame with a tie to eliminate the deformation towards both sides
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