Hi picasso, To be fair I have noooo idea !o_O but I have gone ahead and wired it up as per instructions with just red and yellow wires and it all seems to be working perfectly, taking over control of the heating from the programmable timer controls in the airing cupboard when switched to...
Hi Nozzle, thanks for your reply:) are you saying the voltage is being picked up by the multimeter because the live and switched live run next to each other in the cabling ?
Forgive my ignorance :sick:
Hi all, trying to install Honeywell T4 thermostat to replace my old dial type.
there are 4 wires and i believe they are .....
Red - permanent live
yellow - switched live
blue - neutral
green/yellow - earth
I realise I don't need neutral and earth and will isolate them.
But the switched live is...
Hi all, trying to install Honeywell T4 thermostat to replace my old dial type.
there are 4 wires and i believe they are .....
Red - permanent live
yellow - switched live
blue - neutral
green/yellow - earth
I realise I don't need neutral and earth and will isolate them.
But the switched...