We may have found other answers which could help you.
Click here for Ferroli Optimax ClockFerroli Optimax HE31c a26 problem?
How turn off heating in Ferolli Optimax 31c?
Replace a diverter valve?
i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
FF360 Reset Button Problem?
Ferroli DOMIcompact F 30 D?