Samsung CLX-8640ND - Sensor Failure: #A3-3111. Turn off then On. Call for Service if the Problem Persists; Sensor Failure: #A3-3112. Turn off then On. Call for Service if the Problem Persists; Sensor Failure: #A3-3113. Turn off then On. Call for Service if the Problem Persists; Sensor Failure: #A3-3114. Turn off then On. Call for Service if the Problem Persists

4.Troubleshooting
►ErrorCode
A3–3111
A3–3112
A3–3113
A3–3114
►Errormessage
SensorFailure:#A3-3111.Turnoffthenon.Callforserviceiftheproblempersists.
SensorFailure:#A3-3112.Turnoffthenon.Callforserviceiftheproblempersists.
SensorFailure:#A3-3113.Turnoffthenon.Callforserviceiftheproblempersists.
SensorFailure:#A3-3114.Turnoffthenon.Callforserviceiftheproblempersists.
►Symptom
TheNCsensorinthefuserunitisdefective./Thesensorsignalisabnormalduetoadefectiveharness.
►Troubleshootingmethod
•A3–3111:CenterNCsensorisinshortstatus.
•A3–3112:CenterNCsensorisinopenstatus.
•A3–3113:SideNCsensorisinshortstatus.
•A3–3114:SideNCsensorisinopenstatus.
1)EnterSVCmode.Executesensortesttocheckthesensoroperation.
(Diagnostics>EngineDiagnostics>EngineTestRoutines)
•109-0000:FuserTemperatureA
•109-0010:FuserTemperatureB
2)RemovethefuserunitanddisassembletheNCthermistor.
3)Measuretheresistancevalueofthethermistor.
•Side:1404–001718
•Center:1404–001719
Ifthemeasuredvalueisoutof307KΩ~430KΩ@25℃,replacethethermistor.
4)Installthefuserunitafterreplacingthethermistor.
5)Ifthethermistorisnormal,replacetheharnessbetweenthefuserunitandmainboard.(JC39–01746A)
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