Boss Snowplow RT3 - Troubleshooting; Pump Motor Issues; Neutral Switch Issues; Plow Lowering Problems

Troubleshooting
Problem
PossibleCauseCorrectiveAction
1.Checkthatthepower/groundcables
andcontrolcablesareconnected
properly.
1.Connectthecablesiftheyarenot
connected.
2.Checkforvoltageatthepumpmotor
whiletheignitionswitchisonand
theRAISEbuttonispressedonthe
controller.
2.Ifvoltageispresent,thepumpmotor
hasfailedorthepumphasseized.
Motorbrushesmaybereplaced,
otherwisereplacethepump/motor
assembly.
3.Checkforpowertothesolenoidby
testingforvoltagebetweenbothlarge
terminalsandground.
3.Ifvoltageisnotpresentbetweenone
largeterminalandground,thecable
betweenthebatteryandthesolenoid
isdisconnectedorbroken.
4.Checkforvoltagebetweentheother
largeterminalofthesolenoidand
groundwhilejumpingpowertothe
smallterminalwiththewhite/black
wire.
4.Ifnovoltageispresent,thesolenoid
hasfailedandmustbereplaced.If
voltageispresent,thewirefromthe
smallterminalofthesolenoidtoground
maybedisconnectedorbroken.
Thepumpmotordoesnotrun.
5.T estthepowertothecontrollerby
checkingthevoltagebetweenthe
blackwireandgroundatthewhite
9-pinconnector.
5.Ifnovoltageispresent,powerfrom
therelayhasbecomedisconnected.
Ifvoltageispresent,checkthewiring
andcontrollerswitches.
1.Disconnectthecontrollerandturnthe
ignitionon.
1.Ifthepumpcontinuestorun,the
solenoidhasfailedintheclosed
position.Quicklyremovepower
tothepumpbydisconnectingthe
power/groundcablestotheplow.
Replacethesolenoid.
Thepumpcontinuestorunwhilethe
switchisinneutral.
2.Disconnectthecontrollerandturnthe
ignitionon.
2.Ifthepumpstopsrunning,checkthe
wiringofthecontrollerforashort
betweentheblackandwhite/blackwire
inthecontroller,orafailedswitch.
1.Checkthatthepower/groundcables
andcontrolcablesareconnected
properly.
1.Connectthecablesiftheyarenot
connected.
2.Checktheow-controlvalve.2.Iftheow-controlvalveiscompletely
closed,placethecontrollerinneutral,
thenopentheow-controlvalve.
3.Checkthewiringonthevalveblockfor
properconnections.
3.Refertothewiringdiagramincluded
withyourOwner’sManual.
4.Checkforvoltagebetweenthesolenoid
valveterminalandgroundwhilethe
ignitionswitchisonandthecontroller
isintheFLOATposition.
4.Ifvoltageispresent,thesolenoidvalve
orvalvecoilhasfailed.Replacethe
valveorvalvecoil.
Theplowdoesnotlower.
5.T estthepowertothecontrolboxby
checkingthevoltagebetweenthe
blackwireandgroundatthewhite
9-pinconnector.
5.Ifnovoltageispresent,powerfrom
therelayshasbecomedisconnected.
Ifvoltageispresent,checkthewiring
andswitchoffthecontroller.
Theplowlowerstoofast.1.Checktheow-controlvalve.
1.Closetheow-controlvalvetothe
desireddropspeed.
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