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