Radiators downstairs cold!!

[chriswills]

Hi,

When my C.h system is on the radiators upstairs warm up very quickly but the downstairs radiators are very slow and sometimes feel as if there is no heat at all. The pipes leading to them are warm but as soon as they reach the radiator they seem cool. I have blead All air out of the system top and bottom and have just recently flushed my system and have used sentinel x400 sludge remover which i am going to follow up with the sentinel x100 inhibitor.
Has or does anyone have the same problem? I would love to know whats causing this! many thanks.

 

[JPC]

try closing all rads but one of the non working ones and see if things move. it could be air or poss balancing ? or if used x400 some dislodged debri ?
anyway try above and move round the rads...then balance if this works (check faq in this site)

 

[gas4you]

what boiler/system do you have?

I would check that your pump hasn't stuck or packed in altogether. See FAQs