i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
How turn off heating in Ferolli Optimax 31c?
How can i repair a noCN fault on my boiler?
F40 fault?
I have a Ferroli FF 77 the pilot light has gone out will not stay on ?
Ferroli Optimax HE31c a26 problem?