21
Troubleshooting
Orange Light Codes
Flashes Controller Status Description
Constant LowInputVoltage Constantorangelightindicatesthesysteminputvoltageislow.For
 230Vunits,theorangelightwillbeindicatedwhentheinputvoltage
 isbetween140Vacand170Vac.For460Vunits,theorangelightwill
 bedisplayedwhentheinputvoltageisbetween140Vacand310Vac.
Red Light Codes
Constant ControllerError Internalcontrollerfault.Thecontrollermaybeinternallydamaged. 
Red Verifytheerrorbyturningpoweroff,waiting5minutesthenapply 
 power.Iftheerrorpersists,replacecontroller.
2Blinks NoWater/LossOfPrime Thisfaultcanbecausedby:
 •Watersupplylevelinwellfallsbelowsuctioninletofpump.
 •Pluggedsuctionscreen.
 •Restrictioninpipebetweenpumpandpressuresensor.
 •Airboundpump.
 •Deadheadedpump,pumprunningagainstaclosedvalve.
 •Fillinglongirrigationlinesonstart-up
 •IncorrectsettingofMotorOverloadSettingswitches.
In systems where the motor operates at less than Service Factor
Amps the controller may show a false No Water/Loss of Prime
fault. Reducing the motor overload setting will eliminate the
false readings.
 Ifproblempersists,pleaseverifysupplycapacity.
 ThecontrollerwillautomaticallyrestartaccordingtotheNoWater  
 RestartTimeswitches.
3Blinks SensorFault Thisfaultcanbecausedby:
 •Disconnectedsensor.Disconnectsensorfromsensorcable 
 connectorandreconnecttoensureagoodconnection.
 •Disconnectedsensorcableleadinsidethecontroller.Checkfor 
 loosewireswherethesensorcableconnectstothecircuitboardby 
 tuggingoneachwire.
 •Brokenwireinthesensorcable.
 •Miswiredsensorcable.Checkthatthewiresareconnectedtothe 
 correctterminalsonthecontrolterminalblock.Connectterminal 
 7(24VDCSUPPLY)totheBrownwire.Connectterminal6(TRANSDUCER
 INPUT)totheWhitewire.Connectthedrainwiretochassis.
 •Failedsensor.Todiagnosethisfailureametercapableofreading
 milliamperes(mA)andDCvoltage(VDC)isrequired.
 -SetthemetertoreadDCvoltage(VDC)
 -Placetheblackleadonterminal5(COM)andtheredleadon 
 terminal7(24VDCSUPPLY)
 -Iffunctioningproperly,theDCvoltagewillbe24VDC+/-15%.If
 thisvoltageisnotpresent,disconnectallcontrolterminalsand 
 repeatthemeasurement.Ifvoltagedoesnotrecover,replace 
 controller.