"Lurch" wrote in message
...
On Mon, 15 Nov 2004 12:26:44 -0000, "xena"
strung together this:

The wire from the silver box at the bottom of the pic marked "Downstairs
heating" is the first black wire in
http://www.ukosborne.co.uk/images/wiring.jpg
and has five colours coming out of it. If I'm going in the right
direction,
let me know and I'll see exactly where the wires go.

Let me guess, Brown to blue(switchwire) of room stat. Blue to neutral.
Grey to live. Orange to boiler live and g\y to earth.
The boiler wire is 3rd from the left.
It doesn't matter what you do with it, it's still wrong.
You've now got two options as to how to correct it, sort of, without
rewiring.

Spot on, nice one!!! Cool, happy now. That means that I'm definite that
the g/y is earth, and the blue is switched live. Which means I can get the
RTS7 (two wire application) and actually know how to wire it! I've seen
them on the net for about 15 quid, so that's not bad. Or, like you said, a
programmable thermostat, though I'm not sure what one of those is. Gonna
look it up now.

Was tempted to swap the g/y from earth to the neutral where the wire from
the silver box goes, but would prolly blow system up.

Many, many thanks for all your help :-)
xena