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