Domestic hot water is mega hot ,How do i adjust it

Hi There, depends on what model of Worc's you have, if its a 24/28i junior then you have no control over your hot water temperature its factory set, if its a 25/30si or any of the cdi models then there is a dial on the front of the boiler with a tap next to it, that controls the hot water temperature. As for the pressure gauge, i'v had to change a few as sometimes they get a bit of muck in them, the part isn't expensive and is probably about 40mins work as the engineer will have to drain the boiler etc Hope this helps Mark