potterton free standing boilor ,feed to hot water tank will not get hot, heating working perfectly its fully pumped ,from boler gravity fed to hot tank even put bleed valve onto it as there was not one ,still cannot get hot water to flow around coil in tank and back to boiler ,also there was no header tank or breather pipe fitted so we fitted one ,also even a supply feed from new header tank to get water in as we could not find one.yet this heating has run for 6 years it must been filled fromthe bleed off valve? any ideas as iv,e ran out .and ran off
Sounds like the system has now been butchered, the cold feed and open vent will have most likely been connected directly to the appliance (Depending on what it is)...
I would say do the obvious and boil the boiler to see if you can get the gravity to jump start... But as you've played with the pipe configuration, I wouldn't bother... Check for a blocked coil, then go for the next best thing - Fully pumped.
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