Could I seek some advice on what I hope is a simple problem?
One of the downlights in my hall went, and when I found out that it wasn’t the bulb, I went to change the transformer.
When I pulled it out, I found that its two wires are connected to a junction box. Inside, its blue wire is connected to a piece of red wire, but I found that this was unconnected at its other end. The brown wire from the transformer in the junction box had no wire joined to it.
Inside the roof cavity, I found, to my surprise, that there is a rose, without its top, which has been used to join cable on the circuit. There are five wires in the first group - four blacks and a blue. There are four wires, all reds, in the second, middle, group. There are three wires in the third group: a red, a cable with a brown (and a cut blue) and red wire which I found to be unconnected at the other end.
I know the cable with the brown and the cut blue in this third group is the switched live to a 3-way wall switch.
I presume that the first block of blacks and a blue in the rose is the neutral terminal group; and that the second block of reds is the live block.
All the other lights on the circuit are working.
Am I right in thinking that the loose (red!) wire from the blue in the junction box should go to the first, neutral, group in the rose; and that the loose red from the rose joins to the brown from the transformer in the junction box?
I don’t want to do anything by trial and error and if it’s more complicated than this I will call an electrician – but I don’t want to seem foolish if it’s very simple.
Many thanks.
One of the downlights in my hall went, and when I found out that it wasn’t the bulb, I went to change the transformer.
When I pulled it out, I found that its two wires are connected to a junction box. Inside, its blue wire is connected to a piece of red wire, but I found that this was unconnected at its other end. The brown wire from the transformer in the junction box had no wire joined to it.
Inside the roof cavity, I found, to my surprise, that there is a rose, without its top, which has been used to join cable on the circuit. There are five wires in the first group - four blacks and a blue. There are four wires, all reds, in the second, middle, group. There are three wires in the third group: a red, a cable with a brown (and a cut blue) and red wire which I found to be unconnected at the other end.
I know the cable with the brown and the cut blue in this third group is the switched live to a 3-way wall switch.
I presume that the first block of blacks and a blue in the rose is the neutral terminal group; and that the second block of reds is the live block.
All the other lights on the circuit are working.
Am I right in thinking that the loose (red!) wire from the blue in the junction box should go to the first, neutral, group in the rose; and that the loose red from the rose joins to the brown from the transformer in the junction box?
I don’t want to do anything by trial and error and if it’s more complicated than this I will call an electrician – but I don’t want to seem foolish if it’s very simple.
Many thanks.