i,m trying to fit a new light but am having a problem, i have 3 red and black wires with earths but there is a single black wire on it,s own. have tried to connect with red and black in new fitting but nothing happened, have tried all red and black wires seperatley but havent used the single black one. i,ve checked my fuses and there ok so i havent blown a fuse by doing this. any help would be appreciated.
single black cable
- Thread starter gold1875
- Start date
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gold1875 said:
Do you know about loop-in wiring? One of those blacks may be a switched live and thus shouldn't be connected to the neutrals (sounds like what you've done), this will create a dead short when the switch is pressed.
The loose black, as andy said, may be a neutral for an outside light, or a wall light switched seperately. Look in the switch for a single red for clues of this. What exactly isn't working by not having this wire connected?
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cheers for the reply lads, the switch doesnt control an outside light, it,s in living room where there are two lights. it was in loop system when i took it out to put new light up. NOW NONE OF MY CEILING LIGHTS WORK !!!!!!! dont know where to conect the single black wire . 
Do you have a multimeter?
You will need one to sort out this problem. Alternatively you could contact an electrician to help you.
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