We may have found other answers which could help you.
Click here for Ferroli Optimax 31cF40 fault?
Ferroli Optimax HE31c a26 problem?
Hi how to increase the water pressure on ferroli optimax 25C?
ferroli plus 31c has a code b2 any ideas?
Connections on Ferroli F24 Gas Valve?
Ferroli domicondens he26 C fires up but doesn't appear to rectify ?