Plumber Joe no listen - the lady said, "my radiators work but i cant get hot water".
I think he's a "guessing plumber" sarah....
I'm not a plumber but I can still guess that it's more likely to be the control / diverter valve stuck and only sending hot water to the rads and not the H/W storage tank - but this is just a guess like Joe's...
Best call a heating engineer... do it soon because they'll all be taking a break in a few days...
Peccavi
December 2008