Hi sorry about delay, did what you said and the boiler fired after a 10-20 sec delay, but the leaver on the valve did not move , it stayed at the bottom torwards (auto)..thks
is the central heating working?
the lever will stay put but if you now try to move it it will feel loose (no spring resistance)
if the heating is on then it looks like you have a problem with your cylinder stat or wiring or balancing issues
turn it up to about 55-60 {the stat on the hot water cylinder)
does the central heating still work
Matt