light not working

[johnny54]

Hi guys just moved into oldish house and dining room light not working changed bulb and switch checked fuse box no luck.Kitchen has connector block with thee reds is this normal?whats going where?two blacks to brown one must be live switch but whats the other?could this be the problem anyway to simplify this without connector block.
Lounge seems to be straight forward loop in
Dining room just one cable twin red and earth.
any help with diagrams appreciated regards john

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• johnny54
• 11 Sep 2012
• 1

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• johnny54
• 11 Sep 2012
• 1

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• johnny54
• 11 Sep 2012
• 1

 

[Taylortwocities]

Look at lighting circuits in the WIKI. Its all explained there.

There are a number of ways of doing lighting circuits and you house could use one, or many variants.

 

[johnny54]

Look at lighting circuits in the WIKI. Its all explained there.

There are a number of ways of doing lighting circuits and you house could use one, or many variants.

Thanks have checked out WIKI can`t seem to find one like mine

 

[Lectrician]

Photo of behind the switches?

 

[Taylortwocities]

just concentrate on the dining room light, ignore the others if they still work.
Per the above, take a pic of the wiring behind the dining room light switch.

Do you have a test meter?

 

[johnny54]

just concentrate on the dining room light, ignore the others if they still work.
Per the above, take a pic of the wiring behind the dining room light switch.

Do you have a test meter?

Thanks other lights work will post pic of switch have meter checked rose seems no power to dining light

 

[ban-all-sheds]

Thanks have checked out WIKI can`t seem to find one like mine

No, but you'll find a full explanation of how lighting circuits work, so armed with that knowledge and a multimeter (which is an essential tool) you should have no problems in working out which of your cables do what.

 

[securespark]

Hi guys just moved into oldish house and dining room light not working

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• johnny54
• 11 Sep 2012
• 1

It won't work wired like that unless one of those reds is a neutral and the other comes live when you switch the dining light switch on.

You need to take pictures:

A. Behind the dining switch(es).

B. Behind ceiling rose cover.

And you need to take down the dining light to see if there are any other cables or wires tucked into the ceiling void above the dining light fitting.

Is there more than one dining ceiling light fitting?

 

[johnny54]

Photo of behind the switches?

diagram of switches the dining room switch directly behind kitchen switch other side of wall

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• johnny54
• 12 Sep 2012
• 1

thanks for looking everybody

 

[securespark]

So, you have a twin red cable at the ceiling, but 2 red single and earths at the fitting.

Must be a junction box somewhere, perhaps near the dining light.

Have you any idea if the dining light has been moved at all?

You need to unearth a junction box to proceed on this one.

Best way would be to take up a board above the dining rose and follow the wire(s).

 

[johnny54]

So, you have a twin red cable at the ceiling, but 2 red single and earths at the fitting.

Must be a junction box somewhere, perhaps near the dining light.

Have you any idea if the dining light has been moved at all?

You need to unearth a junction box to proceed on this one.

Best way would be to take up a board above the dining rose and follow the wire(s).

Thanks will do,dining light dos not looked like its been moved.Directly above dining room is bathroom could have been a leak maybe onto junction box,will pull floorboard thanks again

 

[ban-all-sheds]

Before you start lifting floorboards, I cannot urge you too strongly to learn how what you'll find under them works, and to get the tools you need to work on it.

Taking photos and then coming here asking people to help you put-this-wire-in-that-hole without you actually understanding why is not a good idea.

 

[sparkwright]

You have checked the dining room switch is in good nick haven't you?

The red on the red and earth cable (D) in the kitchen light looks like it MAY be in the wrong hole...

...

 

[securespark]

Actually, that's a fair point, can't see the wood for the trees.

If the dining light is fed from that single on its own in the kitchen rose / JB, then it would not work... with a continuity tester, you could

The other thing I've noticed is that your diagram of the dining switch has the conductors connected to L1 & L2.

If this is the case, the switch will not feed a supply to the light fitting.

Looking at the wires you have, it seems possible that the live/earth feed comes to the switch from a ceiling point.

With a continuity tester (and power to the circuit OFF), you could try shorting the red and earth of that wire on its own in the kitchen rose / JB together and then seeing if one of the red/earth cables at the dining switch shows a positive reading.

 

[sparkwright]

Actually, that's a fair point, can't see the wood for the trees.

If the dining light is fed from that single on its own in the kitchen rose / JB, then it would not work... with a continuity tester, you could

The other thing I've noticed is that your diagram of the dining switch has the conductors connected to L1 & L2.

If this is the case, the switch will not feed a supply to the light fitting.

Looking at the wires you have, it seems possible that the live/earth feed comes to the switch from a ceiling point.

With a continuity tester (and power to the circuit OFF), you could try shorting the red and earth of that wire on its own in the kitchen rose / JB together and then seeing if one of the red/earth cables at the dining switch shows a positive reading.

Some switches would use L1 and L2. For example Crabtree ones, where L1 is common, L2 is L1 and if there's L3 this would be L2. If you follow!