3 way switch - confusion replacing old switch

[miketheman2k]

I need to replace one of my 3-way light switches with a standard (C, L1, L2) light switch. Trouble is the old switch looks like this:

What needs to go where on the new switch? I've tried a couple of combinations which result in the new switch not working but the other two switching on/off fine.

Thanks in advance.

 

[bernardgreen]

The switch in the picture is an intermediate switch and needs to be replaced with an intermediate switch.

 

[miketheman2k]

Thanks for the info, really useful

 

[ban-all-sheds]

Don't forget that if you replace it with a metal one the earth connection must go directly to the faceplate of the switch.

Also, lots of useful info here:

//www.diynot.com/wiki/Electrics:Lighting

 

[Taylortwocities]

And treat yourself to a deeper back box, while you are at it!

 

[aesmith]

Is that one of those "fire nuts" joining the Yellows?

 

[Taylortwocities]

Looks like it. They are still available in the UK
http://www.screwfix.com/p/ideal-twister-341-twist-on-wire-connectors-pack-of-100/63342

 

[conny]

Is that one of those "fire nuts" joining the Yellows?

Those 'yellows' are actually green & yellow cpc's, (earth wires).

 

[stillp]

Is that one of those "fire nuts" joining the Yellows?

Those 'yellows' are actually green & yellow cpc's, (earth wires).

No they're not!

 

[aesmith]

Is that one of those "fire nuts" joining the Yellows?

Those 'yellows' are actually green & yellow cpc's, (earth wires).

I don't think so, the CPCs are both in the single yellow/green sleeve. The two Yellows form the third wire of a two way switched circuit, the one that doesn't get switched by an intermediate. Have a look at some of the diagrams for lighting circuits.

 

[Taylortwocities]

Conny, maybe it's safer for you (and the DIYers) if you stick to the General Discussion forum?

 

[conny]

Conny, maybe it's safer for you (and the DIYers) if you stick to the General Discussion forum?

Either that or put my reading glasses on and not my distance driving ones!

I saw the green/yellow one following the same curve and thought they were all earths. My mistake and I apologise.

(slinks off to GD............)