Hi how to increase the water pressure on ferroli optimax 25C?
I have a Ferroli FF 77 the pilot light has gone out will not stay on ?
How can i repair a noCN fault on my boiler?
Ferroli Optimax HE31c a26 problem?
Replace a diverter valve?
Ferroli domicondens he26 C fires up but doesn't appear to rectify ?