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central heating ok but no hot water most of the time?

I have an alpha CB28 combi boiler, central heating working fine. Hot water only heats for about a minute after pressing reset button apart from that it is cold. What could be wrong, how could i fix it and where could i buy spares.

Geraldine Waddell
May 2005
Change the overheat stat if that ok must be sticking diverter valve or holed diaphraghm

martin B
August 2008
may not be diverter valve, try the sensors first

d..
May 2005
the diverter valve is sticking get a plumber

aa
May 2005
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