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