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