ferroli plus 31c has a code b2 any ideas?
Heating coming on all times?
Ferolli Optimax HE 31C expansion vessel change?
Ferroli Optimax HE31c a26 problem?
How turn off heating in Ferolli Optimax 31c?
feroli optimax fault code a4 ?
Replace a diverter valve?
Connections on Ferroli F24 Gas Valve?
I have a Ferroli FF 77 the pilot light has gone out will not stay on ?
Ferroli Optimax HE 31 C, how do I put water pressure up?
F40 fault?
Ferroli , Modena 102 Gas boiler?
I have a Ferroli domicondens he 26 c heating not working?
Ferroli domicondens he26 C fires up but doesn't appear to rectify ?
Installation instructions for Ferroli 30800009?
How do I stop water from flowing outside from my ferroli optima 901 boiler?
FF360 Reset Button Problem?
How can I get my ferroli boiler to work?
Ferroli H31c no hot water or heating & no fault sign?
How do i get the water pressure up please?
i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?