K-Rain Valves All Open Simultaneously: Wiring and Valve Configuration Errors

All Zones Activate When Ball Valve Is Opened; Air Passes Through Valves

When every K‑Rain valve opens at once, the most common causes are:

1. All solenoid hot wires connected to a single controller terminal.
2. Solenoids left in the manual "ON" position (turn to "OFF").
3. Faulty bleed assembly on one or more valves.
4. Torn diaphragms preventing valves from closing.

Check each solenoid’s wiring, ensure the manual bleed screws are tight, and inspect diaphragms. Replace any defective components.