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Had a good go at the system tonight ball valves in header tank all ok, fired up system and bled the pump and got lots of air out and boiler is now cycling in and out much more frequently, hot water now seems ok but central heating still not great so am going to try bleeding it again tomorrow. I...

the pump did seem sound to be running ok and the valves on the water and central heating seem to operate as I expected as the pipes felt warm perhaps the pump motor is running but not driving the water through the system as the pipes into the pump do feel pretty hot

Hi I have just bought a house with a Worcester Bosch greenstar danesmoor 18/25 boiler (oil) it has been working great however now cuts out after three minutes of operation from cold, it does eventually cut back in after about 15 minutes when it will run again for about three minutes and now...