Worcester Bosch Greenstar. Leeds Plumber shows how to replace a faulty expansion vessel on a Worcester Bosch Combi Boiler. It’s also the same on the Worcester Bosch System Boiler.
Replacing an expansion vessel and explaining how the expansion vessel works.
Leaking Worcester bosch boiler from the central heating expansion tank,
If the pipe outside is leaking from the boiler then it could need a new expansion tank change.