Your tado° device will show an E0 error/the warning symbol will turn on if pairing fails during installation.
If you’re pairing a tado° Smart Radiator Thermostat to your Internet Bridge, please try to pair again (the distance between the Internet Bridge and the device should be at least 3 meters and max 8 meters):
Make sure pairing on the Internet Bridge is activated. This is indicated by the blinking pairing LED.
Press the button on the Smart Radiator Thermostat for 3 seconds to start pairing again.
When pairing is successful, the three lines/all dashes turn solid, and the warning symbol on the Smart Radiator Thermostat Basic turns off.
Smart Radiator Thermostat
Smart Radiator Thermostat Basic
If pairing is not successful even after a few attempts, please contact us via chat.