Bleeding radiators

[Mark359]

So, are you absolutely sure its letting air in, then?
John

Yes , if you put you face to it, there is no air being pushed out. All the other radiators push air out and fill up within minutes. This one doesn't seem to be filling up

Mark, your answer doesn't answer BM's question. Are you sure it is SUCKING air in? Or is it just not bleeding? To test, simply open nipple and spread some spit (!) around the nipple. If it is sucking, the spit will be drawn into the rad. If your spit just sits there, the orifice is blocked. In that event, it is a question of removing the nipple and pricking with a pin. But turn off both rad valves or you may have a lot of water splashing around.

I am sure it is sucking, because it whistle, the same as bleeding, but definately is not blowing, have tried the spit and it wasn't blowing it out, just isn't sucking very hard

 

[expertgasman]

So sis the spit being sucked in or not?

 

[Mark359]

So sis the spit being sucked in or not?

yes