My husband and I installed a couple of light fittings in place of old pendant lights yesterday. We've been able to fit lights successfully on previous occasions but ran into some problems last night.
Basically, both lights work fine but appear to have created some problems with other lights in the house so we've obviously ballsed it up somewhere!
The basic setup in each room is the same. There are 3 cables from the ceiling each with a red, black and yellow/green wire. The yellow/green wires are attached together. It seems that the lighting circuit is on a loop and we know that one cable comes from the previous light in the circuit and one cable goes to the next light and the third cable must be the switch cable. (However, none of the black wires are marked with red tape.)
The connecting block is a 3-3-2 so we have put the two black neutral wires and the blue neutral from the light fitting into one block. We have put the three red live wires into the centre block and the black (live) switch wire and the brown live wire from the light fitting into the final block.
The light then switches on fine (and I assume this means that we're using the correct black switch wire). However, if the light is switched off then we can't turn on the lights in the bathroom and study on the top floor. I guess this implies that we have screwed up on the loop wiring but since all three red wires go into the central live block I don't understand what's gone wrong! I had thought that as long as the three wires were in the same block together then the order was immaterial - is this true?
Sorry for the long post but I was trying to give you as much info as possible. Any help would be really appreciated.
Basically, both lights work fine but appear to have created some problems with other lights in the house so we've obviously ballsed it up somewhere!
The basic setup in each room is the same. There are 3 cables from the ceiling each with a red, black and yellow/green wire. The yellow/green wires are attached together. It seems that the lighting circuit is on a loop and we know that one cable comes from the previous light in the circuit and one cable goes to the next light and the third cable must be the switch cable. (However, none of the black wires are marked with red tape.)
The connecting block is a 3-3-2 so we have put the two black neutral wires and the blue neutral from the light fitting into one block. We have put the three red live wires into the centre block and the black (live) switch wire and the brown live wire from the light fitting into the final block.
The light then switches on fine (and I assume this means that we're using the correct black switch wire). However, if the light is switched off then we can't turn on the lights in the bathroom and study on the top floor. I guess this implies that we have screwed up on the loop wiring but since all three red wires go into the central live block I don't understand what's gone wrong! I had thought that as long as the three wires were in the same block together then the order was immaterial - is this true?
Sorry for the long post but I was trying to give you as much info as possible. Any help would be really appreciated.
