I'm replacing a ceiling light and I have 3 wires coming down: 1 is a permanent live, 1 is a switched live and the other is neutral (all black).
Since the old light fitting has been removed the lights upstairs no longer work (presumably all on the same circuit as this ceiling rose).
I can wire the new light and get that to work (switched live to the live terminal block, neutral to the neutral terminal block in the new light) but the lights upstairs still don't work, must be something to do with the permanent live? Where do I wire this to, to get the lights upstairs to work?
see projects in colour
you should have 2 or 3 cables each with 2 cores + earth'
one is feed into ceiling rose
one is live to switch & switch live back to go to lights live
if a third cable there it goes to first (feed ) cable L-L
N-N to carry suply on to other lights
IE normally you end up with three lives together not connected to light at all
two neutrals connected to N of light
one switch wire connected to live of light
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