Solutions may help you:
1. If the timer dial is not set to ON position, turn the dial to ON position.
2. If low battery indicator flashes, replace with new batteries.
3. If rain delay is on, turn the dial to OFF and back to ON to cancel rain delay.
4. If CLOCK, START TIME, HOW LONG, HOW OFTEN are set incorrectly, turn the dial to each position and ensure all setups are correct.