Applies To

Intermatic EI-501 Series 7-Day Programmable Timers

Question / Problem

How do I change the days or time in an existing EI-501 Series timer program?

Common Application / Operating Conditions

• The timer contains at least one programmed ON/OFF schedule.
• You know which program and event need to be changed.
• The timer is displaying the Home screen.

Step-by-Step Resolution

1. Open the Program List

   Press Program from the Home screen. Continue pressing it to cycle through the programs and their ON and OFF events.

2. Select the Event

   Stop when the event you want to change is flashing, then press Set.

3. Change the Day(s)

   Use + or - to select the new day or day group. Press Set to continue.

4. Change the Event Time

   Press Sun/Moon to select dawn, dusk or manual time entry. Use + or - to change a fixed time.

5. Review Another Event or Exit

   Press Program to move to the next event that needs editing. Press Home when all changes are complete.

Tips / Additional Notes

• ON and OFF are separate events, so confirm that you are editing the correct event.
• Check the selected days and AM or PM setting before leaving the program.
• Use AUTO mode after editing to run the updated schedule.