We may have found other answers which could help you.
Click here for Ferroli Optimax 25 CF40 fault?
Connections on Ferroli F24 Gas Valve?
i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
Hi how to increase the water pressure on ferroli optimax 25C?
Parts for ferroli optimax he 31c ?
Replace a diverter valve?