Bleeding radiator problem

[David Turner]

I have had two extra radiators fitted. One was fed by using the pipes for an exisiting radiator. The existing one was then fed via a T piece to an adjacent rad'. Now when I try to bleed either radiator fed from the T connector if the pump is on it sucks air in. When the pump is off the header tank pressure allows the radiator to be bled OK. The problem has come to light because one of the radiators on the T feed refuses to warm up unless the other is virtually switched off. Any ideas.

 

[oilman]

No surprise there then. Bleeding radiators and other vents is done with the pump off, just because if it's on, it can suck air in.

You will have to set the lockshield valves on ALL of the radiators to be correct, not just close one of the adjacent pair. I suggest you search the web for balancing radiators. (Be warned, it can be a long exercise)

 

[David Turner]

Thanks Oilman much appreciated