gas central heating, 2 radiators cold, any ideas?
The combi - boiler seems fine, 4 radiators working fine, hot water also fine. 2 radiators stubbornly stone cold, whever I turn the thermostats (all the radiators have thermostats). I have bled all radiators, no air, just cold water filliing the 2, and hot filling the rest. Anyone know what could be the matter??
Sarah, December 2006