You were right Mrgas...thankyou. I realised it had a third setting on the dial of the pump, when I switched it on to that the whole thing turned from a buzzing to a sound that was more likable..there is obviously loads of air in my system so can I ask how do I bleed it all correctly. there is a...
Please help if you can.....I have a glow worm ultimate boiler in my kitchen that has no visible pilot light. It starts up fine on HW and CH but then after a couple of minutes it clicks and goes off usually followed by the click of the cut-out button.
Some background information that might...