baxi solo wm 50/rs upstairs rads only getting warm?
I have flushed central heating system out. when boiler fires up it stays lit for about 1 min then stops, lighting up again after about 1min. I thought it might be air lock because when hot water fires up there are lots of bangs in the pipes.I have also tried bleeding the pump but no air in there.Not sure what to try next
Mike Swift, September 2007
