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Water Leak on Heatslave boiler?

Worcester Heatslave 20/25 free standing boiler
When heating is switched on pressure rises to in excess of 3 bar and water leaks from the area around the expansion vessel Does this point to the expansion vessel being faulty?
Ted, February 2011
Yes the expansion vessel has gone. Piece of P#*s to change though so dont panic.

speedie k, February 2011
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