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