Find the segments located around the dial of the plug-in timer. Locate the times that you want the timer to start and end each day, such as 9 a.m. and 2 p.m. Segments of time will vary according to the particular product, such as 15- or 30-minute segments.
Push the appropriate start and end time segments down and away from the dial with the end of a pen or pencil. Push down all of the segments in between the start and end times also.
Plug the timer into an outlet next to where the Scentsy warmer will sit. Plug the Scentsy warmer into the timer's outlet. Turn the Scentsy warmer's switch to the "On" position; it will not work with the timer unless it's on. The timer will turn the warmer on and off at the designated times.