Recent content by lyndaann

Thanks so much for the quick reply,I've been looking at the switch all day lol

Hi, I'm a relative newbie to diy, and have bought a dimmer light switch. I have a one gang system. However, on opening the old switch, I have found 3 wires, one blue, one red, and a yellow/green one, which is earthed. I know that yellow/green is the earth, so that's fine, and from research on...