To set anything on timer. Put slider switch on top into “TIMED” mode To set any of the 10 timers scroll through them with the set button, and think of confirm as Enter. Hitting It gets you out of set mode Also, if you want to set the time itself, push and hold Set until it quits flashing, then change the time and day of the week, and then hit confirm When you go into timed mode, the word TIMED will flash if you have no timers set. It’s just a way of telling telling you nothing is going to happen