Opps - drilled through a lighting cable! In the switch it runs two, one switch works an outside light (1 way) and the other works the light at the top of the stairs (2 way).
For some reason in the switch, the common port has a link wire between the switches, as well as a red wire into them, why would this be? Only one core was split by the drill, but I stripped back and replaced three cores. Then when I stripped back the damaged cable and replaced it, the switch downstairs doesn't work the light up stairs. The lightswitch up the stairs can turn the light on and off. If I leave the light on, and go back downstairs, the switch can turn the light on and off. I spent an hour trying to fix it - anyone any ideas?
Regards
SantaUK