Thermostat issues

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I have the tado v3 kit and tado trvs on all radiators…

If i set the thermostat to a temperature nothing happens at all the combi boiler does not kick in..

If i set a trv it does

Do i need to change the settings for the thermostat and if i change the temperature on the thermostat manually should this bring on the heating ?

At the moment all the thermostat is good for is telling me the room temp but doesn't seem to do anything else… or is there something wrong.

I have checked and rechecked the install videos .. the thermostat is wireless not wired in

Any advice welcome