hi i dont have a meter there were no black wires at all, there isnt any bare wires either and i cant fine an earth (which i take it is green and yellow in most cases) and all the cables were connected there is none choc blocked or anything
as far as i can remember they were all connceted but it was a standerd switch and on the back of the old switch there is no marks to indicate were things went. i have changed some of the others in the house with no probs but they werent dimmers. sorry whats a multi meter (you will have to...
i have tried to install a dimmer switch when i have removed the socket i havent noted to exact wiring my fault!!! in the wall i have 3 red wires 1 blue and 1 yellow on the switch there is 3 holes one of them has a wavey line on it i think this stands for common.
can anyone please advise me...