light fittings query


Postby patb » Sat May 16, 2009 9:46 am

Hi guys, I have replaced my pendant light fitting with a spot light fitting in my lounge. There are two light fittings which are both operated by a single dimmer switch.

I havw a further switch which operates an outside light.

I only have two cables coming into the light fitting;

1 x 3 core consisting of 1 x black, 1 x red & 1x cpc
1 x 4 core consisting of 1 x black, 1 x red, 1 x yellow & 1 x cpc

both lounge lights work using the dimmer, but when i operate the external light via separate switch it switches on the lounge lights and only lights the outside light very dimmly....

what am i doing wrong?? :?:
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Postby bd3cc » Sun May 17, 2009 9:42 pm

Is it a 2gang switch or are they seperate.
Would suggest that the 3 core+ earth(4core) might be red, blue, yellow)
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