In article ,
BigWallop wrote:
We have a standard fluorescent light that has stopped working.
I have replaced the tube and starter with known working ones and
still light doesnt work.


Stop there. If you've replaced both the tube and starter lamp and it
still ain't working, then the fitting itself is at fault and needs
replaced. You don't have to go any further with more tests and the
like. You need a new fitting.

Hmm. It might be one of several, and or no longer available. What's wrong
with fixing it?

I've put electronic ballasts in old fittings before now to retain the
appearance.

--
*Go the extra mile. It makes your boss look like an incompetent slacker *

Dave Plowman London SW 12
RIP Acorn