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