Ceiling Light stopped working.

[Steve Evans]

Hi, just needing a little help, problem with downstairs light not working, worked for years previously, have no live feed to switch or light connections so I'm guessing that we must have a junction box somewhere & radial wiring so a loose connection in the junction box?. Have 2 red wires into the switch and 3 wires into the light rose. Am I right if so is my only option to either take up the bedroom floor difficult as built in furniture or cut a section of plaster board out of the ceiling, but how do I locate the junction box to minimise the work to rectify, heard that wire detectors are not very good. Thanks and appreciate any help.

 

[Squid]

Have you had any work done, is it just the one light, have you checked the fuse box?

 

[Barnaby Stedman]

well, if you have no live feed to the light then can you trace back to the last light on your circuit?? and see if the live out of that rose is live?

 

[Steve Evans]

Hi, only work done was having carpets fitted upstairs, all down stairs lights are on the same circuit. All the other lights are OK no loose wires.

 

[Steve Evans]

Don't think its on a loop or ring circuit as only 3 wires go into the light fittings. House built in 1998.

 

[Barnaby Stedman]

yes well lights dont usually run in a ring
Do you have any sort of volt tester?? you need to test to make sure that the cable out of the light before the one not working (if you know which one it is) is live. if it is that will tell you that you have a problem between those two lights. it may be that a nail from a gripper rod has nipped the cable perhaps?

 

[buzzlightyear]

Hi, just needing a little help, problem with downstairs light not working, worked for years previously, have no live feed to switch or light connections so I'm guessing that we must have a junction box somewhere & radial wiring so a loose connection in the junction box?. Have 2 red wires into the switch and 3 wires into the light rose. Am I right if so is my only option to either take up the bedroom floor difficult as built in furniture or cut a section of plaster board out of the ceiling, but how do I locate the junction box to minimise the work to rectify, heard that wire detectors are not very good. Thanks and appreciate any help.

Have you had any work done, is it just the one light, have you checked the fuse box?

well, if you have no live feed to the light then can you trace back to the last light on your circuit?? and see if the live out of that rose is live?

yes well lights dont usually run in a ring
Do you have any sort of volt tester?? you need to test to make sure that the cable out of the light before the one not working (if you know which one it is) is live. if it is that will tell you that you have a problem between those two lights. it may be that a nail from a gripper rod has nipped the cable perhaps?

answer ring some one up .

 

[streamer]

When you say you have three wires at the ceiling rose do you mean you have three conductors ie. red, black and green/yellow or do you mean three twin and earth cables?

 

[Steve Evans]

When you say you have three wires at the ceiling rose do you mean you have three conductors ie. red, black and green/yellow or do you mean three twin and earth cables?

Hi, yes, just live, neutral and earth, no other wires.

 

[Steve Evans]

yes well lights dont usually run in a ring
Do you have any sort of volt tester?? you need to test to make sure that the cable out of the light before the one not working (if you know which one it is) is live. if it is that will tell you that you have a problem between those two lights. it may be that a nail from a gripper rod has nipped the cable perhaps?

No cable out of the light just black, red and earth coming in. Ordered a Toner/probe to trace the dead cable from the light switch, hoping it will work through the plasterboard?

 

[Steve Evans]

Think this is what I have, nobody come across this before?

 

[Barnaby Stedman]

ok - interesting
have you actually tested any voltage - ie is there voltage to the light switch? If there isnt then you have a problem at you junction box

 

[buzzlightyear]

yes ,

one of them.

 

[Steve Evans]

ok - interesting
have you actually tested any voltage - ie is there voltage to the light switch? If there isnt then you have a problem at you junction box

No voltage at light or switch, my worry is finding the junction box I don't really want to bring the ceiling down to find the blessed thing.

 

[buzzlightyear]

what kind of fuse is it bs3036 or mcb?