Botanic Garden >> Gardening > >> Question and Answer >> Irrigation

21‑Station System: Three Valves Stick Open After Well Pump Replacement – Wiring Short

Three valves stay on after scheduled run; manual off works. Valves replaced, problem persists. High pressure tank pressure suspected.

Diagnosis

Controller sends 24 V to valve and pump‑start relay simultaneously. If a valve wire shorts to pump‑start wire, that valve runs whenever any zone runs. Check wiring for shorts before adjusting pressure.

Irrigation: Troubleshooting a Sprinkler Zone That Shows Active but Delivers No Water; Rain Bird ESP-LX "Fault 4" Code: Zone Skipped; Rain Bird ESP-16-LX+ "Fuse" Display: Finding the Faulty Zone; Connecting Flotec FP5172 Sprinkler Pump—Relay Required; Hydrotek 4000 Low Pressure Daytime—K-Rain Timer Solenoid or Supply; Sprinkler Solenoid Testing After Controller Voltage Confirmed—Ohmmeter Method; Choosing a Sprinkler Pump for Grey Water Recycling in the Caribbean; Choosing a Sprinkler Valve for Low-Pressure Tank Drainage; Sprinkler Pump Runs But No Water After Check Valve Replacement; Hydrotek System: Pump Clicking, Cycling, Booster Pump Issues

Garden Articles

Why a Sprinkler Head Leaks When the System Is Off: Diaphragm Wear

Sprinkler and Drip System Not Activating: Master Valve or Main Supply Issue

Identifying a Backflow Preventer and Master Valve in a Sprinkler System

Control Valve Won't Shut Off – Replace Valve After Diaphragm Fails

SlimDial Timer: Zone Stays On After Off – Valve or Controller?

Hardie HR-6100 Controller: System Won't Shut Off

Sprinkler System Manual Start: Solenoid Buzz, No Pressure, One Head Seeps

Plants

Sprinkler Pump Suction Side Pressure Explosion: Water Hammer Mystery

Leaky Zone After Two Valve Replacements: Flush Debris from Lowest Valve

Removing Impeller from Water Ace Sprinkler Pump for Bracket Replacement

Constant Seepage from One Sprinkler Head: Valve or Drainage?

Fixing Leaky Sprinkler Heads and Low-Pressure Zones

New Timer Installed: One Zone Has Lower Pressure Than Manual Operation

Diagnosing a Dead Zone in a 6-Zone In-Ground Sprinkler System