replaced selector switch as it was in 2 halfs inside the boiler,so now it works fine in ch mode but nothing at all happens when i ask for dhw when in ch & dhw mode,turn it to dhw only and its dead as a dodo,dhw microswitch ok but plunger not coming out to activate it, in ch & dhw mode and boiler running if i switch it to water only the boiler goes out.anybody with experience on these boilers please offer advice.
thanks.
thanks.