Radiator Nightmare Any help appricated

[grasscutter]

Hi,

I have recently moved two radiators on the top floor landing of my 3 story house. there are 3 radiators up there in total. one which hasnt ben touched is working fine and heats up, the other two which have been moved are doing strange things.

The first one is getting lukewarm but the inlet pipe is really hot. I have opened the lockshield valve as far as it will go and its still not heating up, if i open the bleed valve water comes out, the other radiator is not heating up at all, when i first switched the CH back on the inlet pipe got very hot, but not its stone cold, again if i bleed it water comes out.

I used plastic pipes for the installation.

IF anyone has any advice or ideas that would be great.

Thanks

James

 

[seco services]

would say you have an airlock in the return pipework.
try shutting the other rads to give full flow to the two not working.