Ferroli optima 701 (combi boiler)?
The water pressure in the boiler creeps up to 3 bar, I have previously reduced the pressure in the system by draining water from the central heating . Also when the shower is used the water is now only gets warm and not as hot as it was before. I have also checked that the top up valve from the mains to the boiler is turned to "off" so the boiler should not be filling with any more water.
Charles Murray, October 2007