rad doesnt heat fully after refitting and bleeding

[steven290873]

Hi,

Have recently finished removing and refitting a radiator. On reading some advice afterwards i realise that i should have left the return valve closed until i had bled the radiator to prevent air from entering the system. Anyway i had both valves open and now after bleeding all the radiators in the house the one which refitted is only luke warm.

Both valves are fully open, the tank in the loft works fine and contains water, what else could be the problem.

Grateful for any advice

Steven

 

[ChrisR]

AIr lock in pipe. Close lots/all other rads while pump on and the air will clear the pipe.

 

[steven290873]

Cheers Chris, have done that and radiator is warming. Once i turn all the rads back on...

do i have to bleed them all again?
Is bleeding best done when system on or off?
what are the chances of the rad cooling again when all the others are turned back on?

Thanks again!