Question about Light Switches & Dimmers
My cord switch in my bathroom broke, it didn't click when pulled and the light remained permanently on, it was fitted by a qualified electrician. I bought a new one and replaced the broken one, it worked fine a couple of times then the same thing happened. I have a fan linked to the light switch and 4 different coloured wires which are red, blue, yellow and the earth. on the switch is L1, L2, COM and earth. please can you help and let me know if I am using the right switch and if there is a reason why both switches have broken in the same way.
There are two possibilities here,
1. it is a mechanical failure i.e a part of the linkage has broken leaving the switch in the on position, did you see anything obviously wrong with the old switch?
2. It is an electrical failure either overload or arcing when the switch is being operated sometimes welding the contacts together. This can happen if the light is a fluorescent tube or ring type, which in combination with the fan start up, can cause this situation. If this is the case you need a higher current rated switch.
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Posted on Nov 03, 2008
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