Samsung A50K8600A/A2 Series - Page 21

Troubleshooting _ 19
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.
WA8700K Washer.indb 19 2016/2/4 16:56:14
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