Rain Bird Sprinkler Timer Isa 304 Manual //free\\ May 2026

Rain Bird ISA-304 Sprinkler Timer — Manual Overview & Quick Guide

3. Set Station Run Times (Duration)

• Turn the main dial to SET RUN TIME (or STATION DURATION).
• For each station (1, 2, 3), use the individual outer dial to set the run time in minutes (e.g., 10, 15, 30).
• Ensure run time dials are fully pushed in to lock the setting.

Step 2: Set Watering Days (Schedule)

You can choose "Specific Days" (e.g., Mon, Wed, Fri) or "Interval" (e.g., every 3 days).

1. Press the SCHEDULE button.
2. The display will show days of the week (SU MO TU WE TH FR SA).
   • To select specific days: Press + or - to toggle a day ON or OFF. A triangle or indicator will appear next to active days. Press NEXT to move to the next day.
   • To use Interval Mode: Press the SCHEDULE button repeatedly until the display shows "INT" or numbers like 1, 2, 3, etc. Use the + or - to select the number of days between watering (e.g., "3" waters every 3rd day).
3. Press NEXT or wait to exit.

2. Pins & Dial (Behind the front panel)

• 24-Hour Time Dial: Rotates once per day.
• Start Time Pins (Gray/Silver): Two pins to set watering start times.
• Skipper Pins (Colored or Black): Used to skip days (on some models).

Step 1: Setting the Current Time

1. Turn the dial to SET CURRENT TIME.
2. Pull the large outer dial outward (if applicable) or rotate it clockwise.
3. Align the current time with the triangular pointer (remember AM/PM – the timer uses a standard 12-hour dial with a small window showing AM/PM).
4. Push the dial back in.