Thanks for everyone's help, it's been greatly appreciated! I think I'm going to leave them alone seeing as they seem to be working ok and not worry about the fact that no water comes out :)
Thanks for your response :)
No, I did not hear any air come out either.
I bled the radiators as the workmen from the management company put a letter through the door saying to do so as the system had been flushed.
I have no boiler or pump in my flat as it is a large communal boiler and...
I recently had to bleed all of my radiators due to some maintenance that had been done in a neighbour's flat which required the water to be shut off.
All but two of my radiators have bled fine but when I try to bleed these two, no water comes out.
I am unsure as to whether this is due to...