Hi, Thanks for the info. However I can't see it on this one which I strongly believe is the same as inside my boiler:
http://www.ebay.co.uk/itm/BIASI-24S-28S-DIVERTER-WATER-VALVE-BI1011503-/291012436063?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item43c1b1605f
Hi
I have a Biasi Riva Compact m90e 28s.
On many occasions, when the hot water is called for it runs
cold and the boiler doesn't fire up.
If the heating is on hot water runs fine. Also if the
heating is activated and turned off even after a
second then hot water will also work ok...