Hi Everyone,

I'm after some advice on the wiring in my bathroom light fitting.
I'm wanting to replace the existing standard rose type fitting to a flush bathroom light.
So I took the existing fitting apart today to see what I have and I'm a little confused by whats there.

I have 3 cables coming into the rose with 3 wires in each as you would expect. I realise that 1 is from the previous light, one is going to the next light and one is from the switch.

However one of the black (I think neutral) wires has been cut so doesn't go anywhere. Also, I was expecting one of the black wires to be a switchable live but it's a red one instead.

I've put pictures on to hopefully show what I have. You can see the cut black wire in the first pic.
The thin white wires are the ones that come down to the bulb holder at the moment.
Hope you can shed some light on this as I'm reluctant to try to replace the fitting until I know exactly what is what.

I think I will need to replace the rose with some terminal connectors which can push up into the ceiling and then have just 3 wires coming from the block to my new fitting. My new light fitting seems to require an earth by the way.

Sorry about the blurred photos.

Thanks in advance,

Martyn

Just realised there is a separate lighting section in the forum.
Sorry if this is in the wrong place, I didn't realise when I posted.

Mods - Please move if I've put it in the wrong section.

Thanks,

Martyn

Something odd there..any chance of a pic of the relevant switch wiring?

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Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

Thanks for your reply wine o.

I will get a pic of the switch once everyone is out of bed in a bit.

I just can't work it out. Looking at the black cut wire, it's one that should be going to/from the switch.
Weird thing is, the existing light works fine, switches on/off etc as it should so there must be a feed and return going to/from the switch.

Anyway, I'll get a pic of the switch asap. It's a double switch which controls the landing and bathroom light. Would that maybe explain any weird wiring? Can't see how it makes a difference myself.

Cheers.

Hmmm..bet that you'll find the black at the switch cut, and the live strapped from com to com...somebody has been a bit confunded in the past..

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Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

Right, here's a couple of pics of the switch. The bathroom light switch is the one on the right. (it's a double switch for bathroom and landing)

Confuses me totally now as no black wire in the switch on the right but I have a blue one.
So I'm guessing something else happens with the wires in the attic or am I reading the switch wiring wrong?

Cheers for any help.

So you have 2 way switching for the hall light...either the wiring at the other hall switch is err..unconventional or there is a another junction box somewhere (Possibly the loft).

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Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

Yeah 2 way switching for the landing light. The other switch is at the bottom of the stairs.

I'm guessing there is a junction box or something in the attic. I could take a pic of the switch at the bottom of the stairs but that switch shouldn't be anything to do with the bathroom light. It certainly doesn't switch the light off or on.

So, do you think I need to get this sorted. I may have to call in a spark as a bit over my head really.
Or could I wire the new light the same way the old one was wired?
I guess I could use a plastic terminal block to replace the rose and take a live off the red wire on the right of the ceiling rose block and a neutral off the black ones. Then a earth off the earth wires and wire to the new fitting? Or is that a really bad idea for a reason I haven't thought of?
Is it unsafe wired as it is? I realise that I shouldn't have a standard rose fitting in a bathroom anyway which is one of the reasons I bought another bathroom light fitting.

thanks for your help. I really appreciate it.

I'd be tempted to wire as is though via Wago connectors. Safer than terminal blocks..

Video here

http://www.ultimatehandyman.org/video/e ... ectors.php

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Verwood Handyman
I Know it says I'm On-line, but I might have just left myself logged in, whilst I'm out....

Cheers for the help.
do you agree looking at the ceiling rose wiring that the switched live is the red wire on the right next to the white bulb holder wire?

So I would join the other 2 reds together and dont wire them to anything.
Join the 2 black wires with an extra black wire which will got to my new fitting.
Join the earth wires to an additional earth wire which will go to my new fitting.
Join the switched red wire to an additional red wire which will go to my new fitting.

does that sound like a plan. Can I get the wago connectors from B&Q or Wickes?

Thanks again.

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Verwood Handyman
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Hi Wine o,

Thanks for all your help on this. I went and got the bits I needed to connect the light up today and it's all done now.
Works a treat.

Yeah what you have here is a loop feed and neutral at the rose with a the cable with the cut core being a switch wire from the switch. There must be a junction box somewhere for the blue switch wire to change to the red at the rose. If i were you id put some brown tape over the yellow black and blue cores at your wall switch when you have a chance.
If you dont want all those cores in your new lights Id suggest you put up your new fitting but bring all the cables through as well then connect the red loop feed together (middle terminal) and tape it up, connect the black neutrals together and put your new blue flex from light into this and then connect your new brown from the light into the red switch wire. If you have any problems and your connections are hard to get to having put them ubove the ceiling it means taking the light down to fix or test it. If the connections are brought into the new light it is easier to solve any problems that may occur.
Im not a DIYer by the way, been in the trade 15 years.