Hi @tfb8

I'm going to presume you have set the Dip switch SW1-8 to on to activate the wireless controller function at the FTC...

A thermostat wired to IN1 will control Zone 1, and that is a hard on/off signal. if it sends a call for heat the heating can run but if it is sending a signal for no heat then the the heating won't run. The wireless RC only sends the room temperature to the FTC and it is the FTC that then refers to its parameters including the set temperature to decide if the heating needs to run, and how hard to run it. But at the moment the IN1 input can act as a disallow heating command.

So with both connected to Zone 1 you have to ensure the Wunda is continuously calling for heat if you then want the FTC to use the wireless RC temperature to enable Room mode to operate. If you just want the wireless RC to be in control you'll need to disconnect the wired thermostat from IN1.

Yes, SW1-8 was set to on.

I tried to do a bit more testing today, but it seems the wireless remote transmiter has failed as it's now just showing "---" in the main display and buttons don't do anything (yep, tried new batteries).

It did seem yesterday that with a room temp of 20 and the wireless remote set to 26, which was echoed on the FTC's main controller, that the FTC just wasn't starting up - even the "heat pump running" icon wasn't displayed on the main controller.

I think I'll have to wait until the weekend before trying again.

TFB

Could be the pairing between the receiver unit and the remote has been lost, or an issue with the receiver unit.

Fairly sure it's the transmitter not the reciever as I can't get the tranmitter to display anything but "---". won't bring up the options menu when you press the 3 buttons together.

Anyway, I found a Woolsey heating and plumbing about an hour away that showed one in stock. Ordered online and was told my item was ready to collect. Drive an hour through todays rain and they can't find the transmitter when I get there. Not impressed at all.
They claim they will have another one UPS'ed from another branch to me, but I'm not holding my breath at the moment

Silly question but is one of them battery operated and if so has the battery run out?

I have a wireless thermostat for my gas boiler.   It fails when the battery runs out at the thermostat end, and it recently started failing every time there is a power cut, I presume because the battery for the battery backup at the powered end has run out.  The latter failure is fixed just by pressing the re-pair button, but it goes again next time the power goes off.  At some point I need to disassemble it and find the battery that does ( or rather doesn't do) the backup!

If I'm understanding you right, are you saying you just want to control the system off one thermostat? If so, you can do this using the WundaSmart app. Each room thermostat, under Wundasmart 'advanced settings', will be set to operate the relay in the wundasmart box. For all thermostats other than the one you want to control the temp, disable the relay action and set the temperature to something that won't be reached, e.g. 25c. They will all take heat whenever it's available, but the heat pump will only turn on when the one controlling the temperature closes. 

Not so much control via just one thermostat, but more to get it away from set flow temperatures and to a variable flow temp. For which it needs to know the temp of the area, not just a hard on/off signal.

Woolsey have delivered a new remote transmitter so I'll have another go when I get time.

@tfb8 If the Winda is still sending control signals, then the relay setting for the Wunda zones must still be set in the Wundasmart app; You can remove it in the advanced parameters section of each zone so that Wundasmart never closes the relay even if the zone needs heat. The manifold valve will still open, it just assumes heat will arrive, it doesn't demand it through the relay.

Alternatively, you can open up the FTC5 panel and remove the cables fron IN1!

and hence the original problem, with the cables removed from IN1 the FTC didn't respond to the room temp being below the desired temp on the remote controller - even though the FTC was echoing the readings of the remote controll. i.e. both showing room temp of 20 and desired temp of 26. This is with dip switch 1-8 set and the mode set to room temp and the address of the remote set as the temp sensor for the zone.

So my original question - is there another setting I have missed?