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We have 14 questions about mending 'ferroli' in category D.I.Y, Plumbing
High pressure on my Optima Ferolli 901 central heating?
Ferroli Boiler Optimax HE 31C?
what part do ineed?
2 amp fuse blown?
c/h hotwater?
Can't get hot water but central heating is working fine, any ideas??
falling presher?
DHW Run's hot and then goes cold?
DHW running hot then cold?