Well, thanks lcgs and everybody who thought of a solution, I figured it out:
LX does need a live feed which I did not have since I 've got only 1 live wire which went to "L". So I bridged L and LX with a small wire and voila! Finally works! Time to go to bed...
Hi everyone,
I want to change my digital programmable room stat (Siemens REV100) to the wireless model (Siemens REV23RF/SET). I am having trouble with the wiring and the connection diagram does not help a lot. Here is the wiring situation for my old digital programmable room stat.
And this...