Peter asked ... How can I mend a Powerwasher PRO PRO1800PWE?    |    Mike asked ... Bosch WTA74200GB Vented Dryer?    |    Stuart G asked ... C3 Front Wiper control problem?    |    Clare S asked ... Repair Electriq dehumidifier?    |    Bob asked ... Charger fault?    |    Click here to ask your question

Ceiling light won't switch off?

Hi all, really hope you can help as this is doing my head.

I'm replacing a three bulb pendant with a single bulb. This light can be controlled from a downstairs and upstairs switch.

The ceiling has three cables coming out. Two of the cables holds a red,black and green/yellow wires (A,B). The third cable holds two red wires and a green/yellow wire (C).

I have tried so many different combos of putting the cables into the the new fixture but cannot get it to work. Results have been flickering light, no light and now a permanent light.

Currently I have cable A in, with the black wire in N on the fitting with the red wire in L and then earthed. I have then taken cable C and put two reds into the LOOP and earthed. Cable B is not connected at all. This has resulted in the light being permanently switched on. I flick the wall switches and there is no response.

Off the top of my head the last config I had was with cable B connected and cable A not being connected and that resulted with no light at all and neither switch responded.

Can anyone help please?????
Rob, January 2011
a lighting circuit is very simple,but you have made errors,you will never get it right by guessing,you need a test meter,get a spark in who will fix it very fast

mm, January 2011
Think about what needs to happen instead of randomly guessing; the live feed needs to loop in, feed the switch (twin red) then go off and feed the rest of the lights.
Switched live then comes back from the switch and goes to the live on the fitting.
Neutrals all go together because they're not switched.
At the switch there should obviously be the twin red, plus a 3 core (red yellow and blue) which should simply connect in the normal way.

Adam, January 2011
I forgot to mention that in all confute I have tried all upstair lighting has not being working. I also noticed when taking off the old fitting that cable A and B both had there green/yellow cables twisted together and put into the same sleeve

Rob, January 2011