replacing room thermostat - wiring question Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[ccrobins]

i finally sussed it and what you had advised stoneyboy was spot on, however what you and i didnt know was that for some reason the wires we assumed were Live and Switch Live were in fact the wrong way around in the old thermostat which is what put me on the wrong track. The switch Live was actually the Brown wire and the Perm Live was the grey - i assume this is down to the cowboy electrician that origiginally wired in the boiler

anyway its working now - thanks for all the help

btw - anyone else doing this the switch live goes into pin3/NO

[stoneyboy]

ccrobins,
Glad its all working, advising is sometimes difficult because installers do not follow instructions some I have come across are wired completely wrong but they work!
end