Hi I have a worcester bosch 230 combi rsf and believe the Diverter valve is faulty. I have central heating which works fine, but no hot water. if heating is on and i call for hot water it sounds as though it is switching over but we only get cold water, also if heating is off and we call for hot water, the boiler will not fire up.
is the diverter valve easy to change etc and how much are they?
any help or info would be most appreciated.

John, May 2007

It does not have a flow switch as has been said on another question. The diaphram which operates the diverter valve will be perished and holed. so not moving diverter valve to hot water mode.

h4gg13, May 2007

Hi Geoff. thanks for the reply. is there an easy way to identify if the flow switch is faulty or the diverter valve.
Thanks

John, May 2007

Probably a faulty flow switch.

Geoff, May 2007