Guys... you lot are amazing... thank you ..
Com1 and L1 needed swapping over.. all now works as it should.
I even fitted the 3 gang 3 switch downstairs with no trauma...
Cheers peeps
Hi all.
Apologies for the novice question...
I've changed many single light switches in the past but today I have tried to replace my dual light switch in my hallway.
The light can be controlled by switches upstairs and downstairs.
I took a picture of the before switch and I've directly...