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