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Thank you...thank you...thank you! Turned all of the upstairs rads off and by the time is come downstairs both rads were filled with the left over hot water. Boiler topped up and fired up now rads nicely warming...as are the others! Thanks for your help.

Drain: Hose pipe attached to drain run off on one if the offending rads. Opened the drain and allowed water to run. Opened a rad bleed valve on an upstairs rad until water ran slowly enough to replace a valve on another rad (still working and hot). Refil: Shut rad bleed valve, closed drain...

Hi forum. I've recently drained my central heating system to fix a leak. Since the refil and rad bleed, I've got two rads that are cold. Bleeding them doesn't fix the issue as they run full but cold water. Combi system. Anyone have any ideas as to why this could be?

Yes I do! Should I try adjusting?

Yeah I'll try that. Thanks for the suggestion.

Hi Forum, Newbie here so please don't laugh! When flushing my toilet, for the duration of the time it takes to fill the cistern back up there is a loud noise. Can't really describe it! There are also vibrations felt when holding the inlet pipe. The noise has been happening for a few...