ferroli plus 31c has a code b2 any ideas?
How can i repair a noCN fault on my boiler?
How turn off heating in Ferolli Optimax 31c?
i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
Replace a diverter valve?
Ferroli Optimax HE31c a26 problem?