Use the "ON/AUTO/OFF" button to cycle through modes. AUTO is required for your programs to work; ON keeps power flowing permanently, and OFF cuts it entirely.

A: You likely set the ON time with the wrong AM/PM indicator. Reprogram the event carefully watching the small “AM” or “PM” icon on the left of the screen.

A: The switch must be in Auto mode. If it’s in Off or On, the +/– buttons are disabled.