On Sat, 20 Nov 2004 18:09:59 -0000, "Set Square"
wrote:

You really need a room stat in each zone, in a
room which *doesn't* have a TRV - and use this to close the respective zone
valve, and turn the pump off when both valves are closed.

Hi SS

I do have this - two zones, two room stats - and when both stats close
the zones, the pump continues to run. There are no TRVs in the rooms
with stats - and won't be.

Do you think it could just be a simple wiring fix?

Thanks