Rain Bird Sprinkler Timer Isa 304 Manual -

| Problem | What the Manual Clarifies | |--------|----------------------------| | | Check that the slide switch on each zone terminal is set to “AUTO” (not “OFF”). Many users miss this. | | “It waters twice in one day” | You accidentally set the same start time on multiple programs. Manual shows how to clear start times by pressing + and – together. | | “Display shows ERR” | Usually a short in the valve wiring. Manual gives resistance range (20–60 ohms) to test with a multimeter. | | “Battery drains fast” | Manual states 9V only for backup, not for running valves. Replace it yearly. |

– Uses a 9V alkaline battery (not included). The manual stresses: without it, a power outage will wipe your schedule. With it, settings last for days. rain bird sprinkler timer isa 304 manual

Turn the dial to Custom Schedule – Days . Use the arrows to toggle each day ON or OFF . | Problem | What the Manual Clarifies |

Turn to Custom Schedule – Starts . You can set up to three start times per day to prevent runoff in heavy soil. Manual shows how to clear start times by