I didn't turn the mains off when changing my extractor fan, figured as long as I didn't cross wires I'd be fine. Wrong. But then the lad who did the job properly didn't turn off the electric either, how's that work? Magnets?
You might have had it switched on when tried to put the wires in? Hard to understand why anyone wouldn't switch the power off to the circuit they're working on.
Pretty sure I had it (they light off).
I didn't switch off as the wife was in the middle of a TV show and I would have had to get a ladder to get to the fuse box... figured it would be fine... figured wrong.
I didn't turn the mains off when changing my extractor fan, figured as long as I didn't cross wires I'd be fine. Wrong. But then the lad who did the job properly didn't turn off the electric either, how's that work? Magnets?