Hi all
Not sure where the issue is here!
I have Honeywell CM67 wireless stats with HC60NG relay boxes and recent Detach Pro motorised valves. I *think* the problem I am experiencing had started before the swap of the motorised valves.
If I set the upstairs stat to manual and increase the required temperature above the current ambient value, the little flame icon appears in the display to show that it is calling for heat. At this point, the relay box clicks reassuringly - all good so far!
On the relay box, although the green light illuminates, it is immediately followed by the red LED. The indicator light on the motorised valve illuminates as it should, but instantly the relay box clicks and the light goes out on the valve. As far as I can see there is no time for the motor in the valve to operate before the process is cancelled for some reason.
I have split upstairs and downstairs heating zones, each using the same hardware, so can see how the stat, relay box and valve should operate for the upstairs zone. The troubleshooting guide does not include the behaviour experienced.
Anyone shed light on this please?
Thanks
Phil