Hello all, I'm hoping someone can help with our problem. We turned off our heating before going away recently, now we're back and things are not working properly. The system is fairly new (fitted October), hot water is fine, but the radiators are not putting out much heat, ie: radiator feels hot but room is freezing cold no more than 10c even though we have the thermostat up at 25! All was working fine before going away. PLEASE HELP. (We have a Glow worm combi boiler).