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