It's freezing and I've managed to stop the few that were working switching on...
Originally only two radiators in the house were working (both downstairs but another 2 downstairs weren't heating up) so I bled all the radiators and removed lots of air. Now none of the radiators are heating up - even the ones that were ok before. The (?) header tank in the attic seems to be filling and has enough water in and I'm not sure what to do next..
Any advice appreciated - I don't want to get hypothermia over the weekend!