We may have found other answers which could help you.
Click here for Ferroli Heating OkReplace a diverter valve?
Parts for ferroli optimax he 31c ?
i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
How can i repair a noCN fault on my boiler?
Ferroli Optimax HE31c a26 problem?
Connections on Ferroli F24 Gas Valve?