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