Samsung WA48H7400AW/A2 - Page 22

20 _ Troubleshooting
Check Type For USA Causes Remarks
Power Check 9C1,9C2
- 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Check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)
Communication
Check
AC
- ThesignalsbetweenthesubandmainPBAsarenotsensed
becauseofcommuicationCheck.
- Checktheconnectorconnectionsbetweenthesubandmain
PBAscarefully.
→Checkforincorrectorlooseconnections,etc.
- RemovethesubPBAC/Panelandcheckforanyfaulty
soldering.
AC2 - ThediagnosisoftheI/OBoardcommunicationcheck.
AC3
- ThesignalsbetweenTheDRModuleandmainPBAsarenot
sensedbecauseofcommunicationCheck.
- CheckTheconnectorconnectionsbetweenTheDRModule
andmainPBAscarefully.
→Checkforincorrectorlooseconnections,etc.
- RemoveTheDRModuleandCheckforanyfaultysoldering.
AC4
- ThesignalsbetweenTheWIFIModuleandmainPBAsarenot
sensedbecauseofcommunicationCheck.
- CheckTheconnectorconnectionsbetweenTheWIFIModule
andmainPBAscarefully.
→Checkforincorrectorlooseconnections,etc.
- RemovetheWIFIModuleandCheckforanyfaultysoldering.
AC5
- ThesignalsbetweenTheLCDModuleandmainPBAsarenot
sensedbecauseofcommunicationCheck.
- CheckTheconnectorconnectionsbetweenTheLCDModule
andmainPBAscarefully.
→Checkforincorrectorlooseconnections,etc.
- RemoveTheLCDModuleandCheckforanyfaultysoldering.
AC6
-ThesignalsbetweentheInverterPBAandmainPBAarenot
sensedbecauseofcommunicationCheck.
-CheckTheconnectorconnectionsbetweentheInverterPBA
andmainPBAcarefully.
→Checkforincorrectorlooseconnections,etc.
-RemovetheInverterPBAandCheckforanyfaultysoldering.
Switch Check
(Main Relay
Check)
BC2
- The Power button is pressed continually.
(formorethan12seconds).
- Aswitchisjammedorstuckduetobepressedunevenlydueto
deformation of the control panel or button.
- ThisCheckmayoccurwhenthescrewsthatholdthesubPBA
in place are tightened too much.
- AbuttonotherthanthePowerbuttoniscontinuallypressed.
(formorethan30seconds).
- Deformation of an internal plastic injection part.
- AscrewforassemblingthesubPBAistightenedtoomuch.