Vokera boiler pressure too high?

Thank you both!

System was allegedly flushed prior to installing boiler. Vokera have sent the wrong hose replacement so waiting for new one to arrive. Taking the loop off and capping has made little difference

Lin
November 2010

hi,

sounds like the expansion vessel needs repressurising or replacing. as water heats it expands like anything.the exp vessel is full of air to take up that expanssion.hence if no air in vessel(or poss the hose to it blocked)as the boiler heats the water it expands and pressure increases till it hits 3bar when the pressure relief valve empties the system water outside thus leaving no pressure in the system.

so it does sound like the exp vessel or hose to it could be to blame

ps it is against water bylaws to leave the fill loop connected

(22 yrs working for BGas)

hope this helps a bit

happy14971
November 2010

Even if it is illegal to leave the filling loop on which sounds very doubtful, you should be more worried about the sludge, I suggest you get on to the installer as the system obviously has not been flushed, this is a requirement by the manufactures before fitting any new boiler otherwise the warranty is void!

boiler bill
November 2010