For some unknown reason the bathroom downlights have stopped working. However, the led light is still illuminated on the pull cord and fuse hasn't tripped. In fact, the in-line extractor fan on the same circuit still operates as it should do. I doubt all 5 downlights bulbs have blown so it is unknown what the fault can be. There is no transformer as the downlights are mains wired.
You need Access to the wiring ( loft?) A two probe voltage tester )not a neon screwdriver !) Time A torch
Sorry just noticed you say. No transformer. Used to be that sometimes the transformer for lights needs a minimum wattage attached to work. Replace dud bulb and they all light up. That's what used to happen with the old halogen bulbs. Things have moved on now so not seen this for a while. Maybe they are wired in series, like Xmas tree lights. One goes out they all go. Find the right dud bulb and replace. Think I would want to take a closer look at them and consider updating
I would be surprised if they are wired in series, there would be no light from them (when they were working) As Bazza said you need access to the wiring, I would go for a duff connection on the first one from the switch
Thanks for the replies. The downlights in question are fairly newly installed - http://www.diy.com/departments/dial...-pack-of-3/1294171_BQ.prd?_requestid=6265992# They are wired direct to the mains board and there are no faults with any of the other first floor lights or the bathroom extractor fan on the same circuit. The wiring was recently replaced (approx. 2 months ago) but the downlights have suddenly just gone off and will not illuminate. I have not gotten up in to the loft as yet but will do and check the wiring connections.
Looking at the wiring, they have been wired in series as one wire comes from mains and then each downlight is wired between each other with 1.5mm 2 core and earth.
Ok. Helpful me. Take your two probe voltage tester (not a no contact tester and certainly not a neon screwdriver).. Test at the junction at the working light between line and neutral. You should read 230volts ish Go to junction at the next light. Test there. Got 230volts there? If no volts then the problem is between light 1 And light 2. Or at the light 1 junction.
No working lights, just the indicator on the pull cord But as Bazza suggests, test at the first lamp in the line and take it from there, it's got to be an easy fix for all lights to suddenly go belly up I reckon.
Obvious answer is if lights were installed only 2 months ago, and have been working fine until now, get the installer back to sort out the problem If a problem with the work recently carried out, then surely down to the installer (did he also supply lights) As no other lights or fan affected, it may well be a simple loose connection with the recent installation Don't think it's down to you to be testing circuit for faults - not after just 2 months Have you contacted the installer to mention the problem. ?
Thanks for all the advice, as it turned out, it was a simple fix as the sparky who did the rewiring and downlight installation hadn't done the screw connection up on the pull cord switch so the negative wire had come out of its connection.
I'd want everything else he did checked then! PS mains wiring does not have negative and positive. It has line and neutral. Glad its fixed !
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