My new house

[davesparks]

I don't know for certain, but I have made the assumption that this did work correctly originally and this has developed as a fault.

 

[telectrix]

got it. you're trying to use electrical switches on gas lighting. every time there's a spark from a switch, the gas lights ignite, but you forgot to put a shilling in the meter so they go out as soon as the gas in the pipe is used. this could happen coincidentally with you operating a switch, giving the impression that the switch is turning the lights off.

 

[rolyberkin]

Seems to me that it is not wired correctly, would help if we could see the wiring in the back of the switches, but on the assumption that all the cables that are needed are present i would just say it is not wired correctly and the permanent live is probably in the common instead of the L1 or the strappers are mixed up. like i say would need to see the wiring.

That's like saying I want to see the answer!?

 

[Richard Burns]

I have had a think about it and I cannot see a way this can work, though I may well have missed something.
As far as I can see the first four operations prove that the switches and the lights and the wiring are all correct.
These moves use all strappers and all switch positions and gives correct operation whether you are using two wire or three wire wiring.

 

[davesparks]

As far as I can see the first four operations prove that the switches and the lights and the wiring are all correct.

I wouldn't be so sure about that,

 

[Richard Burns]

I wouldn't be so sure about that,

OK so I have missed something, apologies.

 

[davesparks]

OK so I have missed something, apologies.

You had me wondering!

 

[hightower]

Did you make any typos in your OP then dave?

 

[davesparks]

Did you make any typos in your OP then dave?

I haven't been home yet, I'll post up once I have

 

[davesparks]

I owe you all a sincere apology, I was typing from memory the first time and forgot to note that I double operated when the switch had no effect as I had subconsciously drawn a conclusion about what was going on, and how to get the light to do what I wanted. I have detailed exactly how it operates now!

Switches operated in the following order:
A light on
A light off
B light on
B light off
A light on
B no change
A no change
B light off
A light on
B no change
A no change
B light off


Again I am sorry for the confusion, but if anything please do take this as a lesson that even someone who appears to know what they are talking about makes mistakes and wrong assumptions. And when fault finding always keep an open mind about, and seek to confirm, the reports you have been given about the fault and its symptoms.

 

[hightower]

With this correction I'd be inclined to say it's a strapper to the common instead of L1/L2, or an intermediate switch used. I've got various drawings at work and I'll have a look to confirm but fairly surely either of these would cause these symptoms.

 

[Simonslimline]

That was my original thought before i edited it. Is the circuit wired, common(switch A), strappers, switch wire (switch B), or is it the conversion method with perm & switch wire in L1 & L2 of one of the switches?

 

[hightower]

Here's my drawings (scrawly)