We may have found other answers which could help you.
Click here for Heating Coming ColdFerroli Optimax HE31c a26 problem?
Ferroli DOMIcompact F 30 D?
ferroli plus 31c has a code b2 any ideas?
Hi how to increase the water pressure on ferroli optimax 25C?
Connections on Ferroli F24 Gas Valve?
F40 fault?