checked pressure in expansion vessel this was very low, increased pressure as requested boiler working as it should per manual.thank you.
gaz t
November 2011
Your boiler expension vessel faulty, try fill air to 0.9 bar and see if improve ot fit another one of 24 litre expension vessel on any heating pipe , can be fitted any where
k
September 2011
Automatic Answer
We may have found other answers which could help you.