The problem has always existed - we moved in about a year ago.
The house is only 15 years old so I doubt any conversion has taken place.
I think I need the controls wiring looked at by a professional
Drayton Mid Position MAI/679-3
I wired it up exactly as previously installed, however, there lies the problem I think. I can only currently turn the C/H and H/W on/off at the same time and the valve will only remain in the mix position.
Does this mean water from the boiler circulates...
I have bought a few TRVs to install, however, there seems to be a few issues:-
1) C/H pipe - The 15mm to 10mm adapter that comes with the valve will require cutting back the existing olive and possibly jointing a new piece of 10mm pipe on - should I just cut it back put a 15mm to 10mm...
Here is the problem:-
1) If programmer put to H/W only, I get H/W and C/H on full blast
2) If programmer put to C/H only I get nothing at all (boiler&pump are off)
3) Room Thermostat doesn't seem to control rad temps - always on full blast
4)Mid point valve always in mix position
I have...