LG WD-S12MPAC / WD-S12MPCC / WD-S12MRCC Service Manual ▷ View online
1
7
SYMPTOM
• Door does not open
• Error displayed on
the program
• Error displayed on
the program
• DRAIN TROUBLE
GUIDE FOR SERVICE CALL
NO
YES
NO
YES
Started with door opened?
NO
YES
Is the debris filter clogged with foreign
material such as pin, coin and etc.?
Is the drain hose frozen with water,
kinked or crushed?
Visit to check
Close the door
Visit to check
Check if the door switch is O K.
Is " " displayed?
Clean up
the filter.
the filter.
.
1
8
SYMPTOM GUIDE FOR SERVICE CALL
°Suds overflow from the
appliance.
(In this condition, wash and
spin do not operate
normally)
°No effect of softener
YES
YES
YES
YES
YES
Is low-sudsing detergent for the drum
washing machine used?
Is the proper amount of detergent used
as recommended?
Recommend to reduce the using amount
of detergent.
Is softener put in the correct compartment of
the drawer?
Is the drawer closed during wash?
Is the softener cap clogged?
Explain how to use softener
< Clean the compartment for softener >
Visit to check
LOW-SUDSING
This appliance has the automatic suds sensing function which
operates under much suds condition for good rinse and
preventing overflow.
operates under much suds condition for good rinse and
preventing overflow.
When much suds are sensed, suds removing function such as
drain, water input and pause will operate without rotating the
drum.
drain, water input and pause will operate without rotating the
drum.
19
8-2.FAULT DIAGNOSIS AND TROUBLE SHOOTING
1. Be careful of electric shock or disconnecting the parts while trouble shooting.
2. First of all, check the connection of each part terminal with wiring diagram.
3. If you replace the MAIN PWB ASSEMBLY, Put in the connectors correctly.
NO
NO
YES
YES
YES
NO
NO
YES
<PWB ASSEMBLY (MAIN)>
<PWB ASSEMBLY (MAIN)>
(1)
(2)
Check the fuse?
Replace MAIN PWB
ASSEMBLY
ASSEMBLY
Reconnect the PWB
ASSEMBLY
ASSEMBLY
Reconnect the PWB
ASSEMBLY
ASSEMBLY
When measuring the voltage of the outlet,
is the voltage AC 220-240V~?
Is the led(1) on?
Is connector(2) disconnected or
disassembled?
Is wire of the PWB ASSEMBLY disconnected?
Replace PWB ASSEMBLY
NO POWER
CAUTION
2
0
NO
YES
NO
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
NO
YES
5
4
Dry
Steam
Steam
Dry
Is water supply shut-off?
Is the tap opened?
When you press both Rinse button and Spin button
simultaneously, is the water level frequency below
240?
simultaneously, is the water level frequency below
240?
Is the inlet valve filter clogged with impurity?
Is resistance between each terminal of INLET
VALVE ASSEMBLY is 2~8
VALVE ASSEMBLY is 2~8
k
Ω
?
Check the voltage of the inlet valve connector
AC 220-240V~.
(Refer to 7-2 QC TEST MODE)
Is water supplied?
Are replaceptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?
terminals of the INLET VALVE ASSEMBLY?
Is detergent put in the correct compartment of
the drawer?
the drawer?
Is the detergent hardened?
Open the tap.
Check the AIR CHAMBER
and the tube clogged
with impurity.
and the tube clogged
with impurity.
Clean the filter.
Replace the INLET VALVE
ASSEMBLY.
Replace the MAIN PWB
ASSEMBLY
Refer to
^NO WATER SUPPLY_
Check the wiring on the
dispenser.
Put the detergent in the
correct position
PRE+MAIN
MAIN WASH
: Detergent
Clean the drawer.
NO WATER SUPPLY
DETERGENT DOES NOT FLOW IN
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