Samsung WW90M6 - Diagnostic Codes and Corrective Actions

Troubleshooting _ 33
4-2. DIAGNOSTIC CODE & CORRECTIVE ACTION
► Thesearecommontroubleshootingproceduresforeachdrum-typewashererrormode.Fordetailedinformation,
refertothegeneralrepairscripts.
Information
Type
Infor-
mation
Code
Causes Corrective Actions Description of Photo
WaterLevel
sensor
1C
• Waterlevelsensorfault
• Incorrectconnectionsofthe
waterlevelsensorterminal
• Thehosepartforthewater
levelsensorisfolded.
• MainPCBfault
• Checkthewaterlevelsensor
terminalconnectionsand
contacts.
• Anerroroccursifanincorrect
waterlevelsensorisused.Make
suretocheckthematerialcode.
(Abnormaloperation)
• Ifthewaterlevelsensorisfaulty,
replaceit.
• Iftheerrorpersistsdespitetaking
theactionabove,replacethe
PBA.
Checkthewaterlevelsensorfrequency.
- Checkitafterthewaterlevelsensorandthe
connectorareconnected.
- Frequency:Approx.25.0KHzwithnoload
WashingMotor
3C
3C1
3C2
3C3
3C4
3CP
• Washingmotorfault
• Incorrectconnectionsofthe
washingmotor/hallsensor
connector
• Washingmotorrotorandstator
fault
• MainPCBfaul
• CheckthemotorPowerconnector
terminalconnectionsand
contacts.
• Checkwhetherthereisthemotor
powercableandpowerconnector
ornot.(“A”)
• 3C1isdisplayedbecause
overloadingoccursduetotoo
muchlaundry.
• Checkwhetherthestatorofthe
motorcoverisdamaged.
• Checkforcoildisconnectionsdue
toforeignmaterial.
• IfthePBAcontrolcircuitisfaulty,
replacethePBA.
► AssyKit
-Checkthe
resistanceonthe
main PCB motor.
(Betweenpins1and
3,and1and2ofthe
three(3)pins)
-Resistance:
Approx.2to10MΩ
-Checkthevoltage
whenthepoweris
on.
►InverterBLDCMotor
- ChecktheresistanceontheMotorPower
Housing connector
- MotorPowerAnyTerminal2pinCheck5.0~6.1Ω
- Checkwhetherthereisthemotorpowercable
andpowerconnectorornot.(“A”)
[MotorPower]
A
WashingMotor
3C5
3C6
3C7
3C8
• Overcurrentoccursduring
motor operation
• Currentsensingerrorduring
motor operation
• Commandrpmcomparedto
thecurrentrpmdifferences
over 100rpm
• IPMtemperaturevalues
abnormallyhigh
• CheckthemotorPowerconnector
terminalconnectionsand
contacts.
• Checkwhetherthereisthemotor
powercableandpowerconnector
ornot.(“A”)
• 3C1isdisplayedbecause
overloadingoccursduetotoo
muchlaundry.
• Ifthehallsensorterminalisfaulty,
replacethehallsensor.
• Checkwhetherthestatorofthe
motorcoverisdamaged.
• Checkforcoildisconnectionsdue
toforeignmaterial.
• IfthePBAcontrolcircuitisfaulty,
replacethePBA.
WW22N6850NX-A2_SM.indb 33 2018/2/1 17:15:50