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