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