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I was just wondering why when the hot water is on, the heating turns off and does not work while the water is running.. Is this a known fault? I would like to know what it could be before I ring ferroli AGAIN... It is a Ferroli HE 38c. Cheers

Hi therekeep getting F12 up and Fh up, i have done a reset and it clears it for a while, is this a common problem? I have a Optimax 38C. Also there is a thumping inside which wasnt there when i bought it, it is when the heating switches off to heat the water and visa versa, the gentleman who...