Search results

I have seem to have lost control of the water side of the programmer/timer The system is working but only on the (CH) side I have carried out some checks and it would be helpful if somebody would comment on them or advise further test I could carry out checked the 3 port M valve and it...

have recenty changed a 3port m/valve , i now have the problem with the rads heating when the hot water is on the m/valve seems to move correctly 1st - inside the electrics cover of the m/valve there are 2 micro switches what do they control , reason ( the switches on the new unit seem to...