SOMFY J4 1TN Notice D'installation page 21

7.5. Return to factory mode
Connect the WT setting tool - Ref. 9013142.
Ensure that the exterior Venetian blind is at least 30 cm below the stop on the mushroom
position.
Press the button on the WT setting tool for 15 seconds.
The current position of the Venetian blind is stored as the lower position.
The upper end limit position is stored at 120 turns above the lower end limit
position.
7.6. Troubleshooting
The motor does not operate. Check:
That the motor wiring is correct
That the motor has not undergone a thermal cutout
If it has, wait for the motor to cool down
That the appropriate cable has been used
That the motor used is definitely a J4 WT motor (read the label)
EN