the water pressure in my system is to high causing the saftey valve to leaky i have replaced the inlet valve the air bleeder and the safety valve and still the pressure is going to 30 psi wich is max for the valve any help would be much appreciated

william grass, January 2006

remove black cap on pressure vessel at back of boiler press valve just like a car tyre if you find any moisture when valve is depressed replace pressure vessel if no air is found in vessel repressure vessel to manuel specs

colin, April 2006

if you have already tried the filling loop then if your boiler has a seperate hot water heat exchanger then there could a hole in this internally causing the cold water and the heating water to mix and over pressurising your boiler a common fault on worcester boilers

mike, January 2006