Tado radiator thermostats heating way past their settings

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Whatever the thermostats are set to, Tado ignores it and either keeps on burning gas or shuts down the rads before they've even reached the desired temps.

Bathroom set to 23 degrees, Tado has heated to 24.1 degrees.

Hallway set to 22 degrees, Tado has heated to 24.6 degrees.

Mum's bedroom set to 23.5 degrees, Tado has shut down rad at 23.1 degrees.

Dave's bedroom set to 22.5 degrees, Tado still heating at 23.2 degrees.

Heating set at 21 degrees, Tado still heating at 23.4 degrees.

Heating set at 19.5 degrees, Tado still heating at 21.8 degrees.

Mum's bedroom set to 22 degrees, Tado still heating at 22.4 degrees.

Office set to 23.5 degrees, Tado has heated to 24.6 degrees.

Scullery set to 19 degrees, Tado still heating at 20.1 degrees.

The list goes on and on.......