In message , jezza
writes
Does anyone have, or know where I can get an instruction manual for a
Smiths TS1000 timer.

If not, does anyone have a website or an address/phone no for Smiths
themselves.

I'm desperate to get hold of one. I have a timer that I cannot
de-program, and that I cannot isolate from the mains because it shares
a fuse with the lighting circuit. It's costing a fortune, because it
keeps switching on a heating system.

Doesn't it sit on a backplate from which it can be unscrewed?
--
geoff