This is really interesting actually, good to learn more about how the place I live in works.
Is the "no click" at thermostat information irrelevant?
We replaced the thermostat and the central heating seems to work now. Turning it down gives a click and controls the boiler properly.
Though...
Hi, thanks for your response.
I believe it's the 1st variant.
I'm not quite sure where to look, but here's a thing I found near the Sieman's pad:
(3 pics of the same thing)
If this isn't what we're looking for then I can look again...
Boiler: Suprima
Thermostat: Drayton
Programming thing: Siemens
Ok, so symptom:
Central heating does not work at all (no radiators are warm - not even their 'feet', and they've been bled for air)
1) Manual "extra hour" CH set on Siemens pad
2) Drayton dial turned up/down and nothing happens on...