Evening,

I have the above boiler and the heating system is working perfect but i am getting no hot water. I have switched the boiler off but it has made no difference, please can you advise me what to do.I have replaced the Stramungsschalter but it still has made no difference.

raja, November 2010

The fault is almost certainly with the diverter valve.
Valve around £80 and simple to replace. You will need to close off the CH valves and then drain the boiler.

DocBrown8.2, November 2010