Search results

Hi all, my heating is firing up ok but when selecting central heating the boiler does not fire up. I changed the 3 port valve for a horstmann valve but still have the problem, when you select central heating the valve moves to just past the mid way position but not fully across, if you then pull...

hi , problem with an ideal classic 50 nf boiler , when central heating selected light comes on in the programer but the boiler fails to fire up , works fine on hot water, ive changed the three port valve but still have the problem, any ideas.

Hi all,can anyone help , im changing an old room stat , the old one has three connections with no markings , the cable running to it has three wires blue , brown and yellow/green the new stat has connections marked 1 , 2, 3 and 4 , can anyone advise me as to what goes where .[i recently had to...