ferroli plus 31c has a code b2 any ideas?
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Replace a diverter valve?
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Over filled my Ferroli boiler?
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i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
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Heating coming on all times?
Ferroli Optimax HE31c a26 problem?
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Ferolli Optimax HE 31C expansion vessel change?
How turn off heating in Ferolli Optimax 31c?
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Ferroli domicondens he26 C fires up but doesn't appear to rectify ?
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I have a Ferroli FF 77 the pilot light has gone out will not stay on ?
