Samsung WW90M6 - Page 37

Troubleshooting _ 35
Information
Type
Infor-
mation
Code
Causes Corrective Actions Description of Photo
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.
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.
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.
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)
-
Switch
(MainRelay)
bC2
• ThePowerbuttonis
continuallypressed.
• AbuttonotherthanthePower
buttoniscontinuallypressed.
• MainPCBrelayfault
• Checkwhethereitherthe
Powerswitchoratactswitchis
continuallypressed.
• CheckwhethertheservicePBA
holdingscrewsarefastenedtoo
much.Iftheyarefastenedtoo
much,loosenthemalittle.
• IfthemainPBAswitchingICon/
offerrorhasoccurred,replacethe
mainPBA.
Checkthecontactbetweenthecontrolpanelbuttons
andtheircorrespondingtactswitch.
- Theremustbeagapbetweenacontrolpanel
buttonanditscorrespondingmicroswitch.
 Otherwise,anerroroccursafterapprox.30
secondshaspassed.
GAP
WW22N6850NX-A2_SM.indb 35 2018/2/1 17:15:50