Well as promised here is the answer......
....unbeknown to me I made an assumption that the feed into the transformer was from the switch. In fact it was from another junction box (that the switch fed into obviously) and inside was a loose neutral wire which arced. Unfortunately it knackered...
Me probably!!
I will do, I am intrigued to know if I can start a museum of broken transformers or not.
Many thanks for everyone's advice, sorry I couldn't solve it!
Rob
Right basically I have given up, I am sick to death of wiring and rewiring and getting my wife to traipse downstairs to flick the RCT.
I did check that the volts were 240V and 0V when the switch was used, that worked. I then wired up the lights again and got nothing. So then I wired up the...
Blimey that was a long reply, thanks.
There were instructions but they were hopeless, just showed input and output. No idea what class the lights are the transformer is Class 2. I have had another look at the instructions and it shows L and N on the drawing but I cannot see that marked on the...
Okay here is what I have found.
1) Switch in the bathroom has 245V across it (I was measuring the wrong things - oops) and then 0V when off, so the switch seems to be working
2) The input from the switch to the transformer is 245V
3) There is no output at all, and I definitely measured...
Hey that's a good question, I am pretty sure I did select DC even though I am a thicko I think it did cross my mind.
I will have to redo the measurements tomorrow and check it all but I am pretty sure the numbers I have given are correct.
The solution is clearly get an electrician in but...
Not sure of the makem I have to confess it is the second one I have tried because I think I knackered the first one. It's all ventilated so that is not the problem but I can't help thinking I have wired the transformer up incorrectly, but there is not much to it.
As far as I can see there is...
Dear Electrical Geniuses, please help me if you can.
The problem started when the LV lights in the bathroom randomly went off and then came back on when they felt like it. I read that they might be overheating and as we had our loft reinsulated not that long ago thought that might be the...