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