Three Zones Running Same Heads? Fix Crossed Wires on Your Sprinkler System

If stations 1, 2, and 6 all activate the same sprinkler heads with low pressure, the zone wires are likely jumped together at the valve manifold — multiple valves wired to the same controller output.

How It Should Be Wired

• Controller terminal 1 → red wire → valve 1 solenoid + common
• Controller terminal 2 → blue wire → valve 2 solenoid + common
• Controller terminal 6 → green wire → valve 6 solenoid + common

Each zone must have a dedicated wire from controller to its valve.

Find the Cross

1. Open the valve box.
2. Check which colored wire connects to each solenoid.
3. Look for two or three solenoids connected to the same colored wire.

Common Causes

• Incorrect initial installation
• Repair splice that joined wrong wires
• Rodent damage causing shorts

Fix

Separate the wires so each solenoid connects only to its designated zone wire from the controller. Use waterproof connectors. Test each zone individually after repair.

Low pressure occurs because multiple valves open simultaneously, dividing available flow.