2 gang to 3 gang light

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  #1  
Old 11-10-14, 09:04 AM
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2 gang to 3 gang light

Mod Note: Member is in Ireland.

Hi,

Moved into "new" house last year and of course I've been changing things around - not too new house - build in 70s, but in pretty good condition. I've done some wiring in bedrooms etc, but I got stuck in the garage. I've a 2 gang switch - 1st switch for a garage and 2nd for a bathroom. I'm planning to divide garage area into 2 separate rooms, so I need and extra light and that's where the problem begins...
I found a pic that should work for me:



but please check wiring in 2 gang at the moment:

LIVE - power supply - 2 wires
SWITCHES - lights - only 1 wire each

and of course I've bought 3 gang (same as on 1st pic) and 3rd light which has 3 wires (blue, brown, yellow).
So I've tried few times, but cannot make it working. I don't really know why SWITCHES cables have only 1 wire. Is second behing a box? Or am I missing something?
Any ideas please?
 
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  #2  
Old 11-10-14, 09:09 AM
ray2047's Avatar
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This is primarily a North American forum. Our switches and wiring are somewhat different. The diagram does though look correct assuming power comes to the switch not the light.
 
  #3  
Old 11-10-14, 09:34 AM
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I don't really know why SWITCHES cables have only 1 wire
I don't know either. A switch cannot work with only one wire. No matter where you live or how devices are typically wired, a hot wire will either be connected to a device (always on), or a hot wire will be "broken" via a switch to allow you to turn it on and off.

Please post a picture of the front of the switch you show above.
 
  #4  
Old 11-10-14, 10:02 AM
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It's just old and dirty 2 gang switch


At the moment right switch is on and left is off.
 
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