first of all i asked my son to up the pressure in the combi
but the pressure when i looked! it was near 4 , we had just put the gas in so no worries about that,just no hot water and quietness about the boiler,F5 button flashing and reset button no help. its a ferroli boiler any suggestions what it could be PLEASE

mikey dude., October 2011

the pressure should be 1.5 bar not 4

mm, October 2011

was this a hot or cold pressure?.Cold usually around 1.1

A1, October 2011