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2 amp fuse blown?
ferolli modena 102?
Ferroli Boiler Optimax HE 31C?
shower in bathroom keeps going hot then cold then hot etc?
High pressure on my Optima Ferolli 901 central heating?
what part do ineed?
c/h hotwater?
how can i fix this ?
DHW Run's hot and then goes cold?
DHW running hot then cold?
falling presher?
Can't get hot water but central heating is working fine, any ideas??