my feroli modena 102 runs scalding hot water even though all thernostats c ?

Not sure of this boiler, but if you have a separate water tank for hot water, usually in the airing cupboard, there is a thermostat located about a third from the bottom of the tank (a small white box held on with a strap) select a lower temp by moving the arrow to lower setting, may need to use a flat screw driver. Usually set to about 60-66 deg.

YAN
February 2010