Update: Adding a wireless room thermostat (help needed)
"JH" wrote in message
...
I checked the wiring again and the problem is solved - it's so obvious and
rather embarrassing.
Basically, the original test to determine which two pins controlled the CH
and HW was cocked up.
I originally thought pin 3/brown controlled the CH and pin 6/blue did the
HW - wrong its the other way round!
With pin 6/blue wired into the room stat and pin 3 left alone this time
everything is working properly. The annoying part is that I used brown
wire
to extend the ON wire to the new stat so it now looks a bit of a bodge as
a
blue wire is connected to a brown one.
So Mike, the wiring is straightforward, just avoid the mistake I made!
With your advice, (and thanks to Lurch's help!) I have just done it, and
blow me, it works!
Cheers
Mike
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