Thanks all – teef, that’s particularly useful. I am firmly in the camp of have a try at things.
Yes, the main lights around the kitchen are run off two dimmers – one by each entry door (ie, same circuit). Is that not a good thing? They were like that when we bought the place, and both switches have mechanically failed. That circuit does seem to eat bulbs though (as does the dimmer in the front room – long life low energy bulbs last bout a week on that!).
My campaign to rid us of dimmers is about to begin.
As above, as I now can’t get the lights on the only thing is to work out whether the circuit’s off or not.
Cheers again.