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Mend Glow-worm Central Heating Overheating Radiators

how do i remove an airllock from a glow-worm boiler?. ?

i had to drain the c/heating system to repair valve, now the rads are o.k, the hot water is o.k, but the boiler on c/heating/water setting together overheats and cuts out. how do i remove the airlock in the boiler.? there has been no problems before the system drain.

t.galv
October 2008
Try turning off boiler stat
switch on so pump runs,then switch on and off a few times might clear the air

ivor
October 2008

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