Thanks Terry
Yes there is water dripping from the overflow / pressure relief pipe. Also in 24 hours the pressure in the expansion vessel dropped from 0.85 bar to 0.55 and the pressure gauge reading from 1.0 bar to 0.8
I've finger tightened the automatic air bleed valve as you suggest and...
Hello everyone
First post so be gentle! Have done a search to see if my particular problem has been covered but can't find it so hence the reason for my post.
Had a two storey extension added to the house in 2009 and the old boiler was replaced with a Vaillant ecoTEC Plus 618. All was well...
