Samsung ProXpress M453x series - LSU Error Code Diagnosis (U2-xxxx)

4.Troubleshooting
4.6.8.U2-xxxxtype(LSU)errorcode
ErrorCodeErrorMessageTroubleshootingPage
U2-1111Error:#U2-1111/LSUFailure:#U2-1111.Turnoffthenon.Callforservice
iftheproblempersists
P.4–101
U2-1112Error:#U2-1112/LSUFailure:#U2-1112.Turnoffthenon.Callforservice
iftheproblempersists
P.4–101
U2-1113Error:#U2-1113/LSUFailure:#U2-1113.Turnoffthenon.Callforservice
iftheproblempersists
P.4–101
U2-1114Error:#U2-1114/LSUFailure:#U2-1114.Turnoffthenon.Callforservice
iftheproblempersists
P.4–101
►ErrorCode
U2–1111
U2–1112
U2–1113
U2–1114
►Errormessage
LSUFailure:#U2-1111.Pleaseturnoffthenon.
LSUFailure:#U2-1112.Pleaseturnoffthenon.
LSUFailure:#U2-1113.Pleaseturnoffthenon.
LSUFailure:#U2-1114.Pleaseturnoffthenon.
►Symptom
LSUmotordoesnotoperateoritoperatesabnormally./LSUMotorreadysignalisabnormal.
►Troubleshootingmethod
1)Turnthemachineoffthenon.CheckfortheLSUmotoroperationsoundduringwarm-up.
2)Printademopagetocheckthatthemachineoperatesnormally.
3)Iftheproblempersists,checkthefollowing:
•IftheLSUmotormakesasound,
a)EnterSVCmodetochecktheLSUmotorreadysignal.
b)Select“LSUMotor1RunReady”.
c)Press‘Start’button.Checkthatthestatushaschangedto‘Executing->Low->High’.
d)Ifthestatushasnotchanged,themotorreadysignalisabnormal.ReplacetheLSU.
•IftheLSUmotordoesnotmakesasound,
a)Turnthemachineoffandopenthesidecover.UnplugandreconnecttheLSUcable.CheckthattheLSU
motormakeasoundafterturningthemachineon.
b)IftheLSUcableisdefective,replaceit.CheckthattheLSUmotormakeasoundafterturningthe
machineon.
c)Iftheproblempersists,replacetheLSU(JC97-03877A).
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