I can only get central heating. Cannot get hot water. Cannot get hot water light to come on. Worcester 28 CDI

Mike, April 2007

The repair kits are available to re-build your divertor valve but it is generally not worth it on this model.
It involves the removal of the plate heat exchanger, the integral filling loop, the by-pass pipe and one part of the heating manifold.
Almost every joint in this process involves the replacement of "o" ring seals. They come with the new valve and include pretty much everything you need. As a caution,though, it's not a thing for the feint hearted to attempt at d.i.y. level.

T.H.S, April 2007

should be able to get a diaphragm for under a tenner or a service kit for just over twenty

Paul the gas man, April 2007

The diaphragm will be split mate but i don't think you can buy a diaphragm on it's on you will have to buy the diverter valve. Last one i bought was about £150.

Mark man, April 2007