Boiler firing up but no heat from it.

[margy]

Hi, we are totally flummuxed here. Our Central Heating/Hot water boiler - Potterton Kingfisher Mf 40-100 RS100 Gas Council No 415890 - fires up, but there is no heat around the boiler itself or any of the pipepwork from it. We have drained down and flushed out. I know the CH problem could be the pump, but I would have thought with the furnace burning away there would at least be some heat at the boiler/pipe from it. We shall call in a Corgi Reg expert, but not just to do the things we can do ourselves. Hoping someone has a suggestion :lol: