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Where will I find the drain off valve on the boiler ? Thanks.

Hi, I've put the heating and water on this morning. And it fired up for a bit and turned off. The pump keeps on making a noise every 10 seconds like it trying to work, but the boiler hasn't fired up since the first couple of mins when I turned it on, does the the system need to be bleed or...

Hi, I have just fitted a new valve - honeywell v4073A Motorised mid - position valve. when i turn the heating on, the boiler turns on for around 10 min then turns off the radiatiors don't heat up. same with the water. do you know what is wrong - i have checked the wiring and its seems that...

Hi All, newbie to the site.. i have a concord wrs boiler and a danfoss 4033 switcher. when i try switching the heating on the boiler doesn't respond but when i switch the water on the boiler jumps into life it seems to heat the water and also the radiators. so the problem is that is...