The black motor pin of my Smart Radiator Thermostat does not retract when the device is unmounted. What can I do?

In order to force the black pin of your Smart Radiator Thermostat to retract simply restart the device.

When the restart is successful “Hi” lights up on the display and the black pin retracts.

When mounting your Smart Radiator Thermostat again, it will start to calibrate to find the valves’ open and closed position.

More Information: