Samsung WW7 J5 Series - Page 30







  
Communication
AC
• Thesignalsbetweenthe
subandmainPBAsare
notsensed.
• IncorrectwireConnections
betweentheSubandMain
PBAs.
• Checkthewireconnectionsand
terminalcontactsbetweenthesub
andmainPBAs.
• Checkfordisconnectedwires.
• CheckwhetherthesubPBA
isshort-circuitedbecauseof
moisture.
• IfthemainPBA’scommunication
circuitisfaulty,replaceit.
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AC6
• Thesignalsbetweenthe
mainandInverterPBAs
arenotsensed.
• IncorrectwireConnections
betweenthemainand
inverterPBAs.
• Checkthewireconnectionsand
terminalcontactsbetweenthe
mainandinverterPBAs.
• Checkfordisconnectedwires.
• IfthemainorInverterPBA’s
communicationcircuitisfaulty,
replaceit.
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AC2
• ThediagnosisoftheI/O
Boardcommunication
error.
• Checkthewireconnectionsand
terminalcontactsbetweenthesub
andmainPBAs.
• Checkfordisconnectedwires.
• CheckwhetherthesubPBA
isshort-circuitedbecauseof
moisture.
• IfthemainPBA’scommunication
circuitisfaulty,replaceit.
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Communication
AC3
• ThediagnosisoftheDR
communicationerror.
• Checkthewireconnectionsand
terminalcontactsbetweenthe
mainandinverterPBAs.
• Checkfordisconnectedwires.
• IfthemainorInverterPBA’s
communicationcircuitisfaulty,
replaceit.
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AC4
• ThediagnosisoftheWi
communicationerror.
• Checkthewireconnectionsand
terminalcontactsbetweenthesub
andmainPBAs.
• Checkfordisconnectedwires.
• CheckwhetherthesubPBA
isshort-circuitedbecauseof
moisture.
• IfthemainPBA’scommunication
circuitisfaulty,replaceit.
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AC5
• ThediagnosisoftheLCD
communicationerror.
• Checkthewireconnectionsand
terminalcontactsbetweenthe
mainandinverterPBAs.
• Checkfordisconnectedwires.
• IfthemainorInverterPBA’s
communicationcircuitisfaulty,
replaceit.
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Power
UC
(9C)
• Powerconditionfault.
• Anerroroccurswhen
underorovervoltageis
supplied.
• Plugreceptacleisused
• MainPBAfault.
(sometimes)
• Checktheconsumer’spower
conditions.:Makesuretocheck
theoperatingvoltage.
• Connectatestertotheinternal
powerterminalsduringtheBoil
orDryoperationsandobserve
thewashingmachine’soperation
carefully.
 :Checkthevoltages.(Anerror
occurswhenunderorovervoltage
issupplied.)
 :Checkwhetheraplugreceptacle
isused.Whentheconnectingwire
is1m,amomentarylowvoltage
maydropupto10V.
• MainPBAfault.(sometimes)
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