By default, the timer programming is inactive. Therefore, it's necessary to activate it to then create time schedules.
To activate it, follow these steps:
Press the "Settings" button for 3 seconds to enter the settings to be changed.
Use the "Up Arrow" and "Down Arrow" to select the settings.
Go to setting L2.
Set the value to 1.
Once this is done, you can create your schedules by pressing the "Clock" button.