i have trawled through loads of pages trying to work out our boiler problem. central heating works fine but now we have to turn on the taps on max to get the hot water side to power up, even then its only luke warm. by what i have been reading i thought it was the divertor valve but someone has suggested that if it was the divertor valve the central heating pipes from the boiler would warm up when asking for hot water which it does not. i have looked at the pin on the divertor valve when i call for the hot water and it only starts moving at nearly full flow on the tap...help much appriciated.....Mark