Odd wiring.

Odd! Were the two blue wires connected to the neutral terminal, or just joined together in fresh air? Was *anything* connected to the N terminal?

Does the switch have a neon light, which glows when it's 'on'? If so, that might account for the need for a neutral.

Having terminals marked Com, 1-way and 2-way suggests that it's a change-over - with Com connected to 1-way in one position, changing to Com to 2-way when you toggle it. In that case, it's *very* odd to join

Are you sure you have reported the wiring correctly? What, according, to the owner, is it *supposed* to do, and what is the perceived problem which caused her to ask for it to be replaced?

Two switches, take the other one that works off and test it?

Brian

That is something we discussed over the phone.But Dave was not on site at the time.

Joined as in fresh air :-) Chocky block.

Nope.

My thoughts exactly!

Pretty sure - I'll post a photo somewhere. The switch failed mechanically & the light wouldn't come on - or the fan.

I have to say that I still believe it is what I suggested when you phoned me. It's a double pole pullcord switch. The reds have been linked up to give a permanent live to the fan (not that that link is needed), the yellows are the switched live and the blues in the strip connector are the neutrals.

Should be wired using a double pole switch.

if a timer fan then you will have an unswitched live to the fan as well.

Owain

SHARED -- Neutral

Double pole pull switch MK 3151 requires mounting block

live to the right-hand yellow switched live.

Owain

That makes perfect sense! But, in that case, I wouldn't expect the 4 poles to be labelled Com, 1-way, 2-way and N [1]. Has TMH misead them?

Ta. So how does that translate to wiring colours?

Red - perm live in, perm live to fan Yellow - switched live to light, switched live to fan Blue - neutral in, neutral to fan

RED -------------- SWa Pole 1-------YLW1---- LIGHT -- (neutral not present at switch) | |-- SWa Pole 2----YLW2-----| (sw live to trigger) | | |-----------------RED----SHARED (perm live to fan) FAN | BLUE ------------------CHOCKY-------BLUE-----| (neutral to fan)

Owain

Slightly amended so as not to linewrap. Still requires fixed font. Note the N to the light is not present at the switch

RED ----------- SWa Pole 1----YLW1---LIGHT--> N. | |-- SWa Pole 2----YLW2-----| (sw live to trigger) | | |-----------------RED----SHARED (perm L to fan) FAN | BLUE-------------CHOCKY-------BLUE-----| (neutral to fan)

Owain

(snip Owain's diagram)

This is exactly why I wire up so there's exactly one unambiguous cable at each switch/outlet/whatever and do all the voodoo in junction boxes. Even tho' it's depreciated, I've had too many calls from people who've taken a switch or ceiling rose off and can't get any further.

Or worse, "I joined all the reds, and all the blacks, and all the greens, but when I try to turn the light off the fuse blows"

JGH

Is that momentary or latching?

Owain

I cannot see anything that suggests that is a momentary switch.

My error, I forgot this application requires a latching switch.

Owain

OK, I have located the switch Owain suggested.

It has L & N Supply at the top and L & N Load at the bottom.

So, do I wire it;

No, you put the supply in the Supply side and the load in the Load side :-)

RED ---------|--SUPPLY 1 LOAD---YLW1 | RED ---------|--SUPPLY 2 LOAD---YLW2

BLUE --------| | BLEU --------|

Owain