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water pressure?

I HAVE A VOKERA UNICA HE BOILER WHICH IS ONLY 1 AND A HALF MONTHS OLD AND THE PRESSURE GAUGE KEEPS FALLING AND THE ERROR 40 KEEPS FLASHING, CALLED BACK THE PLUMBER WHO SAID THAT A SPRING HAS GONE IN THE RELEASE VALVE, BUT THE PROBLEM IS STILL THERE, CAN ANYONE HELP PLEASE
STUART POOLE, January 2009
would this be the reason why the system is full of air aswell

stuart poole, January 2009
sorry pressure relief valve!

Ben, January 2009
check pressure release valve first, or you may have leak in piping somewhere.

ben, January 2009
link Click here to see other fixes for Vokera.