Heating coming on all times?
Hi how to increase the water pressure on ferroli optimax 25C?
i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
Ferroli H31c no hot water or heating & no fault sign?
How can i repair a noCN fault on my boiler?
I have a Ferroli domicondens he 26 c heating not working?
how can i fix my optimax HE 31c?
Parts for ferroli optimax he 31c ?
Ferroli domicondens he26 C fires up but doesn't appear to rectify ?
Over filled my Ferroli boiler?
whats wrong with my ferroli modena 102 combi boiler?
Ferroli Optimax HE31c a26 problem?
how can i i raise low water pressure on ferroli boiler he26?
Ferroli f30b boiler ?
ferroli plus 31c has a code b2 any ideas?
heating?
Ferroli Optimax plus HE 31 C?
I have a Ferroli FF 77 the pilot light has gone out will not stay on ?