New Tado Wired Smart Thermostat - Worcester boiler won't turn off
I purchased the Wired Smart Thermostat Starter Kit. I have removed the existing WR1 wireless receiver, and connected the black and grey wires to the thermostat - COM and NO. It is a worcester greenstar 30si combi boiler.
When I adjust the temperature on the app, I can see that this adjusts on the thermostat. However, the boiler is just turned on constantly. It isn't turning on/off with the thermostat.
Any advice would be much appreciated.