how can i fix my optimax HE 31c?
Replace a diverter valve?
How do i get the water pressure up please?
How do I stop water from flowing outside from my ferroli optima 901 boiler?
F40 fault?
How can I get my ferroli boiler to work?
I have a Ferroli domicondens he 26 c heating not working?
How can i repair a noCN fault on my boiler?
Connections on Ferroli F24 Gas Valve?
Ferroli H31c no hot water or heating & no fault sign?
whats wrong with my ferroli modena 102 combi boiler?
Ferroli domicondens he26 C fires up but doesn't appear to rectify ?
I have a Ferroli FF 77 the pilot light has gone out will not stay on ?
Ferroli f30b boiler ?
ferroli plus 31c has a code b2 any ideas?