What should I do if the thermostat does not switch on when I insert the batteries?

To determine the reason for the product defect, please perform the following tests:

1. Remove the batteries from the Somfy thermostat for 1 minute then insert them again and check that the LEDs are lit.
2. If the LEDs are still not lit, check that the batteries are new by changing them.

If you still encounter problems, please contact the Somfy hotline.