4 hours ago Jo asked ... How to engage clutch on old sewing machine to engage needle?    |    Jacky asked ... Miele Vacuum cleaner?    |    Ben asked ... Toyota Yaris French or Japanese?    |    Andy asked ... How can I mend my MacAlistair 450w hedge trimmer?    |    Felix asked ... Hitachi vt-m70em?    |    Click here to ask your question

Vallaint boilers?

the water pressure incresses every day to the red level (high level 2.6 Bar)area
however I let water out every day to reduce the pressure.
please could informe me whre is the problem.
mazin, January 2010
Could be a few things;first is the filling loop definately shutting off?remove one end of hose if external loop to check.Does the pressure only rise when heating is on;if so it is probably an expansion vessel fault; either it needs recharging to 1 bar pressure or the pipe to vessel is blocked or the expansion vessel is gone.

Mike, January 2010