My boiler is heating water fine, but I am getting no hearing. There are no warning messages so all looks well from the disply. The pressure guage is showing only just over 0.5 though which the manual says should be higher. It says to try nringing the system pressure up to a mean value of 1.0 bar by opening the water inlet valve. Is this something I can/should do myslef, if so where is it? If not then I will call for help.

Thanks

Ray, October 2010