– Turn dial to "Manual" → select zone → press +/–. The manual includes a troubleshooting table for when a zone won’t turn on (usually a stuck solenoid or bad wire).
Offers six pre-programmed schedules that cater to various landscaping needs, from daily watering to deep-root cycles.
The Rain Bird ISA 304 is a 3-station, 4-program outdoor sprinkler timer. Unlike modern Wi-Fi-enabled smart controllers, the ISA series uses a mechanical dial and a backup battery to maintain schedules. "ISA" stands for nternational S prinkler A utomatic, and the "304" denotes its capacity: 3 stations and 4 start times per program. rain bird sprinkler timer isa 304 manual
Locate the "Program" switch or button (usually labeled A, B, C, D). Slide or press it to select Program A .
utilizes a central programming dial and buttons to configure schedules. Set Time and Day : Rotate the dial to Time & Day . The display will flash; use the – Turn dial to "Manual" → select zone → press +/–
Before diving into the buttons and settings, it is important to understand what the ISA 304 is and what it is designed to do. The "ISA" stands for nterchangeable S olid-state A utomatic. The "304" indicates that this specific model controls 3 stations (or zones) and utilizes 4 programs .
Turn the dial to and use the Advance (right arrow) and Up/Down buttons to select the day, hour (ensuring correct AM/PM), and minutes. Return the dial to "Auto/Run" to save. 2. Choosing a Watering Schedule The Rain Bird ISA 304 is a 3-station,
key to make the duration flash. You can set each station from 1 minute up to 2 hours. Start Times Custom Schedule – Starts , you can program up to three start times per day. : Always return the dial to to activate your programmed schedule. Preset vs. Custom Schedules A standout feature of the ISA series is the variety of pre-programmed schedules which allow for quick setup: Schedule 1 : Daily at 8:00 AM for 10 minutes per station. Schedule 2