Lit. No. 72623, Rev. 00
18
April 15, 2019
TROUBLESHOOTING
Your local TurfEx
®
dealer knows the sprayer best.
Take the unit to the local dealer for any maintenance
or service needs. If this is not possible, the
troubleshooting table below may assist in identifying
the problem.
Preliminary Checks
Before proceeding with the Troubleshooting Guide
steps, confirm that:
• All electrical connections are tight and clean.
• Pump switch is in "ON" position.
• Nothing is obstructing the wand spray tip (or
accessory boom nozzles).
TROUBLESHOOTING
WARNING
Read all Warning and Caution statements and
instructions before servicing the sprayer.
TROUBLESHOOTING GUIDE
Issue
Check For
Pump will not start.
Correct voltage (12V
±
10%).
Blown fuse
Pressure switch operating; correct voltage at switch
Open or grounded circuit at rectifier or motor
Locked drive assembly
Pump will not prime
(no discharge w/ motor running).
Debris in strainer
Restriction (kinks) in inlet/outlet hoses
Debris or swelling in inlet/outlet valves
Pump will not shut off.
Air trapped in outlet line or pump head
Correct voltage to pump
Debris in pump inlet/outlet valves
Loose drive assembly or pump head screws
Pressure switch operation; adjustment required?
Pump quit and will not restart.
Check in-line fuse and/or fuse in car adapter end.
Correct voltage (12V
±
10%)
Pump continues to run and surge
when not spraying.
Leaks in system
Bypass valve not completely closed
Fluid flowing through bypass hose when valve is
closed: replace valve.
Low flow or no flow.
Clogged suction hose and/or suction strainer
Correct voltage (12V
±
10%)
Fuse blows whenever pump is
switched on.
Excessive voltage
Damaged wiring
Improper adjustment of pump pressure sensing
demand switch
Leaking from pump head or switch.
Loose screws at switch or pump head
Switch diaphragm ruptured or pinched
Punctured diaphragm, if fluid is present
WARNING
Do not operate a sprayer in need of
maintenance.
WARNING
Always wear safety glasses with side shields
when servicing the sprayer. Failure to do this
could result in serious injury to the eyes.