You must first do an io reset and unpair your thermostatic valve io from your box, using the following steps:
If the procedure was successful, the thermostatic valve displays "OK".
Then restart the pairing process with your TaHoma® box by pressing and holding the "-“ and "+” buttons for 3 seconds, until the pairing logo is displayed.
The pairing is now started for 10 minutes, so please make sure that you register your valve io in your TaHoma® box within these 10 minutes.
If the above procedure still doesn’t work to pair your valve, reset your thermostatic valve by pressing the "-" and "+" buttons simultaneously for 12 seconds and release when the reset icon is displayed, then try the pairing procedure again.
If you still have problems, please contact the Somfy Hotline.