Radiator cold

[Chris Woodcock]

I have a cold radiator and one not as hot as it should be both downstairs. Rest downstairs and all upstairs are fine. British Gas talk about a £6-800 system flush being necessary but no way can I afford that.
Any thoughts or suggestions greatly appreciated.

 

[ianmcd]

switch off all the rads that are working ok and see if the faulty ones get hot, if they do you need to balance the system

 

[Doggit]

Is this a recent change, or have they always been like that. The one that's not as hot, is it hot (or hotter) at the top, with a cold patch at the bottom in the middle.