There is a switch in the contact switch of the bathroom mirror that just needs to be opened and it will ring. This is a kind of sound of lighting. It will produce "heat" together and burn out the switch after a long time. Check whether the screw fastening the wire is loose; The tension spring force shall not be, and the "contact" and "off" shall be slow; The contact surface of the switch is deformed due to burning, which reduces the contact area; As the switch burns out, the surface contact becomes a point contact, resulting in a vicious cycle of current reduction and heating. It can be modified, but it has to be repaired. Replace it again. Be sure to tighten the screws of the two fixing wires! After using it for a period of time, disassemble it and tighten it again, so that the switch will not generate or reduce this question in the future.

　　Assuming that the bathroom wiring error, it usually presents the following questions, a turn is the lighting module, heating module, exhaust module open together. If that's OK, one will do. There are three power supply lines for the contact switch wiring of bathroom mirror: 1. Ground wire, yellow and green one, above the bathroom on the socket, connected to the shell of Yuba. 2. The zero line, mostly blue or black, is connected to the screw port of five lamp caps on the left under the bathroom on the socket. 3. The front is red in most cases. It is located on the right side of the socket and connected to one of the three switches. Three switches, the one for lighting, and the other is connected to the base of lighting lamp cap; Two tube heating switches, and the other connecting column of each is connected to the base connecting column of two heating lamp caps. The bathroom wiring terminal is marked with n connected to 0, and the other four have two heating lamps, one for ventilation and one for lighting. 

These four are connected to the switch control button, and the other one is connected to the switch. It is important to note that the color of the line should be clarified. Orientation of bathroom pressure line. According to the above wiring diagram, the control switch L1 and socket l of the color contrast of the line have been connected when they bought it. Directly connect the front of the socket, connect the other hole of the socket to zero, and connect the lamp at the other end of the switch.

　　When you understand the contact switch of bathroom mirror, you can use it reasonably. Because it is in contact, you should pay attention to it every time you use it. Don't overdo it. If the contact switch of bathroom mirror is used too hard for a long time, its service life will be reduced and it will be damaged. Other things should be taken care of frequently. Assuming that the stain on the contact screen is too thick, it will affect the response of the contact screen.

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