Rain Dial System Won't Start: Verifying Water Supply and Valve Operation

A Rain Dial controller is programmed but sprinklers don't come up. The user asks how to verify the system is turned on at the valves.

Step-by-Step Verification

1. Main valve: Ensure the main irrigation shut-off valve is fully open.
2. Flow control: Locate the flow control knob on top of each valve and open it about halfway.
3. Manual test: If nothing happens, manually open one valve using the small manual bleed screw (smaller than the flow control). If water flows, the valve works—the issue is the controller or wiring.

This quick test isolates the problem to either the hydraulic side (water supply, valve mechanics) or the electrical side (controller, wiring, solenoid).