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Help! I had to replace the upstairs 2 gang 2 way switch on my landing and have got the wires messed up. Downstairs is a 2 gang 2 way switch that I haven't touched. Both switches will turn the light on and off but not as a 2 way circuit. My house has the old colour wiring. The upstairs switch is wired as follows: A single grey wire with red core appears to the the continuous live - this is in one of the commons; there is a twin and earth (I believe coming up from the downstair switch) - the red wire is in L1 and the black (? switched live from downstairs) is in L2. A single grey wire with red core (? I'm sure is the switched live from the upstairs light) is in L2. So, I have the black wire from the twin and earth and the ? switched live from the light in L2. Can anyone help me - I really appreciate it. Thanks.

glynn_h,
different ways to do this depending on method of installation.
confirm how the downstairs switch is wired colours and terminals and the lightfing
and you say two gang two way upstairs, what is the other switch operating and is that a two way also?
KB

[quote="kbrownie"]glynn_h,
different ways to do this depending on method of installation.
confirm how the downstairs switch is wired colours and terminals and the lightfing
and you say two gang two way upstairs, what is the other switch operating and is that a two way also?
KB[/quote]

Thanks KB, I've managed to get everything working. Glynn_h.

That's good news,
Well done
KB