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