Rain Bird Sprinkler Timer | Isa 304 Manual Extra Quality

...and I can find the exact troubleshooting step from the Rain Bird Support Center for you. Rain Bird ISA 300 / 400 Series Sprinkler Timer Manual

Ensure the main water supply is open. If only one zone fails, use a multimeter to check the resistance of that zone's solenoid; a healthy Rain Bird solenoid typically reads approximately 20 to 60 ohms . Rain Bird ISA 300 / 400 Series Sprinkler Timer Manual rain bird sprinkler timer isa 304 manual

Turn the dial to "Pre-set Schedules." You can use the arrows to pick a preset (e.g., daily at 8 AM) or select "C" for a custom schedule. rain bird sprinkler timer isa 304 manual