I had my boiler moved to my new extensions and since then only half of the radiators work ( the ones in the extensions and 1 in the original part of the house. I have a baxi solo 2 40 hp and 9 radiators. 5 work. I have bled the system and all of the radiators in turn but no heat at all.
I had the same problem. Gave this a go and it has solved the problem
Thanks Tony
Raz
February 2009
You will have to turn all the ones off that are getting warm and let the others have the heat.Eventually you should hear gurgling noises as air is pushed out and the rads should heat up.Keep doing that until they all get warm then turn all the others back on.Process of elimination i am afraid.