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
