Greenstar HE Combi CH but no HW - diverter value issue ??

[TylerDurden]

My Greenstar HE Combi boiler is playing up, we get CH but no HW. In fact when I turn the CH off at the thermostat, the rads stay hot, esp (or so it seems) if we run a hot water tap. From what I've read this looks like a diverter value problem. What can I do myself (if anything) to fix this. I have downloaded a install / service document for this boiler but can't see any reference to a diverter value.

Thanks in advance for your assistance

 

[Agile]

It does sound like a diverter valve issue.

You should post the exact model number.

Yours probably has a motor actuator clipped onto the diverter. Its a black plastic body with three wire connections.

If you can unclip and loosen it you might get hot water if I am correct in my guess of the inside of your boiler. See if the gland is leaking !

Tony

 

[TylerDurden]

Thanks for the reply, funnily enough today both the CH and the HW are working. I'll take a look at what you suggest