Discuss No hot water on gravity system? in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Get a bit of hose pipe go up in your loft and go to the bigest header tank and the pipe that bends over it put the hose pipe in it and suck till you get water out this should clear the airlock. How old is the boiler?
Not running through hot tap
Reply to No hot water on gravity system? in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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