Done this now. It allows heating to work. I've switch the Heatlink off manual mode, doesn't feel like the boiler is reacting to me switching heat off via the app. I'll keep an eye on it for the evening.
Have done that now. Still not able to get the thermostat to control the heating (i did switch the timer on the boiler to ON), i turned up the thermostat to 30c and the boiler isn't indicating heating icon. Even if i switch back to manual mode & boiler timer, doesn't seem to want to heat anymore...
I had to replace my Honeywell Thermostat as the screen died and went for the Nest 3rd Gen during the Black Friday sales.
I have wired it up using the instructions I found in the post I linked below. Note, I do not have connections to T1 and T2.
But the thermostat is still not controlling the...