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You are here: Home > Sprinkler School™ > Sprinkler Troubleshooting > Troubleshooting Chart - Valves
Troubleshooting Chart: Valves

Troubleshooting Chart: Valves

Troubleshooting

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A zone valve will not turn on.


Possible Causes: Remedy:
Incorrect watering days, start times or run times. Check and adjust the timer program.
Water supply is off to the zone valve. Turn on the water supply.
Faulty valve solenoid. Replace the solenoid.
Closed control at valve. Open the control valve counter clockwise.



A zone valve will not turn off.


Possible Causes: Remedy:
Zone valve wires are not connected Connect the wires.
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Timer programming is incorrect. Check and adjust the timer program.
Debris in valve, solenoid or meterin orifice. Disassemble the valve and clean with fresh water.



Water is leaking from a valve.


Possible Causes: Remedy:
Valve diaphragm is faulty. Replace the valve diaphragm.
Valve body is cracked or broken or the valve bonnet is broken. Replace the valve.



Leak from lowest sprinkler in zone.


Possible Causes: Remedy:
Damaged valve diaphragm. Replace the diaphragm.



A manual valve is stuck or hard to operate.


Possible Causes: Remedy:
Dirt in the valve. Clean and lubricate the valve stem.



Misting of the spray occurs.


Possible Causes: Remedy:
Flow is too high Adjust the flow control to a lower flow on the irrigation valve.



The spray pattern is too small


Possible Causes: Remedy:
Flow rate is too low. Adjust the flow control to a higher flow on the irrigation valve.


Valve Solenoid


Problem Possible Causes: Remedy:
A zone valve will not turn on
Burned out valve solenoid. Replace the solenoid.
Fuses blow Faulty wiring or solenoid. Replace the solenoid, check and repair faulty wiring.

 

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