First of all, we should see whether the wall switch panel is loose. If there is any loosening, it is mainly due to the fastening screw is not tightened: whether the panel is vertical, whether it is smooth, there is no phenomenon that is close to the wall. If there are these phenomena, the screw holes in the junction box should be adjusted; If the spacing between the panel and the switch panel is too large, it is mostly caused by not measuring the spacing during the installation of the junction box. Therefore, rework or adjustment is required. If the panel is stained or cracked, it needs to be replaced; The switch is not flexible to open and close, mostly for its own quality problems and installation problems, need to be removed after correction to reinstall or replace; The height of wall switch and socket panel in the same room is not consistent, mainly due to the installation of the junction box did not pay attention to the elevation.