Rain Bird Sprinkler Timer Isa 304 Manual !!better!! (2024)

Overview

• Power: 120VAC, 60Hz
• Current consumption: 100mA
• Operating temperature: 32°F to 120°F (0°C to 49°C)
• Humidity: 0-90% RH

The display will flash; use the (+) button to select the station you want to run. rain bird sprinkler timer isa 304 manual

Return dial to AUTO.

Where to Find the Original Manual PDF

Since Rain Bird no longer hosts the ISA 304 manual on its main support site (legacy products are archived), try these sources: Overview

manual. The unit allows for manual operation, seasonal water budgeting, and rain-off settings, with programming that includes daily scheduling and custom interval options. For detailed wiring, mounting, and troubleshooting instructions, refer to the full manual provided by Rain Bird. The display will flash; use the (+) button

• Set the dial to “Set Watering Start Times.” Enter up to 4 start times (use AM/PM if applicable).
• Set the dial to “Set Station Run Times.” For each station (1–4) set runtime in minutes.
• Set watering days: weekly selection or specific weekday options (use the “Set Days” position).

Should You Replace the ISA 304?

If your ISA 304 is malfunctioning or lacks modern features (rain sensor compatibility, seasonal adjustment, remote access), consider replacing it with a current model such as:

Set Start Times: Turn the dial to Custom Schedule – Starts. Use the Advance key to select "Start Time 1" and the arrow keys to adjust the time in 15-minute increments. You can program up to three start times per day.