Boiler shows f75 can't seem to figure it out looking at all these answers

verycold lady, January 2012

Do not know model, But to try and help. Check pressure, that is usual problem most boilers, should be about 1 bar, use fill loop, ( a flexible metal braid pipe, with valve, connected close to boiler) to get pressure to 1 bar. Other than that I do not know, but am sure someone does, check that 1st though

SD, January 2012