LG WF-D110S Service Manual ▷ View online
4-7. TROUBLE SHOOTING METHODS ACCORIDNG TO ERROR MESSAGE
• The connector (3-pin, male, white) in the MOTOR HARNESS is not
connected to the connector(3-pin, female, white) of STATOR
ASSEMBLY.
ASSEMBLY.
• The electric contact between the connectors (3-pin, male, white) in
the MOTOR HARNESS and 4-pin, female, white connector in the
MAIN PWB ASSEMBLY is bad or unstable.
MAIN PWB ASSEMBLY is bad or unstable.
• The MOTOR HARNESS between the STATOR ASSEMBLY and
MAIN PWB ASSEMBLY is cut (open circuited).
• The hall sensor is out of order/defective.
LOCKED
MOTOR
ERROR
MOTOR
ERROR
8
CAUSE
SYMPTOM
ERROR
• The connector (3-pin, male, white) in the MOTOR HARNESS is not
connected to the connector(3-pin, female, white) of STATOR
ASSEMBLY.
ASSEMBLY.
• The electric contact between the connectors (3-pin, male, white) in
the MOTOR HARNESS and 4-pin, female, white connector in the
MAIN PWB ASSEMBLY is bad or unstable.
MAIN PWB ASSEMBLY is bad or unstable.
• The MOTOR HARNESS between the STATOR ASSEMBLY and
• Have coin insert between Tub & Washing wings.
• Have foreign object ( Pin , Clip , etc.) insert between
Tub & Washing wings.
MAIN PWB ASSEMBLY is cut (open circuited).
• The hall sensor is out of order/defective.
LOCKED
MOTOR
ERROR
MOTOR
ERROR
8
COIN
LOCK
ERROR
9
CAUSE
SYMPTOM
ERROR
40
4-8 TROUBLESHOOTING SUMMARY
41
Inlet Valve
RD6 Pin1 : Rinse valve
Pin3 : Cold valve
Pin4 : Jet valve
Pin5 : Hot valve
MAIN CONTROLLER
1 2 3
1 2 3
NOISE
FILTER
1 2
1 2 3 4 5
1 2 3 4 5 6
1 2 3
2 3
8 4 7
8 4 7 5 1 2
1 2 3
1 2 3
1 2 3
1 2 3 4 5 6 7 8 9 10
1 2 3
1 2 3
1 2 3 4 5 6 7
6
4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5 6 7
6
1 2 3 4
6 5
4
3
2
DRAIN
MOTOR
CLUTCH
MOTOR
1 2 3 4
1
1
2
2
3
3
1 2 3
5
4
6
4 1 3 2
MOTOR
HALL
SENSOR
Pressure
SW
R.V
C.V
J.V
R.V = Rinse Valve, C.V = Cold Valve, J.V = Jet Valve, H.V = Hot Valve
1 2 3 4 5 6 7 8 9 10
1 2 3
1 3 5
SUB
DISPLAY
2 3 1
CN1
RD2
NA6
NA1
YL3
CN8
CN6
YL2
WH1
CN1
CN3
CN8
CN6
YL4
NA5
AC
GN
/
YL
BK
VL
/
WH
BL
BK BN RD
BK BN
BN
RD
GN YL OR
OR
OR
OR
WH
WH GY
GY WH BK
GN
OR
BL
/
WH
WH
/
RD
VL
VL
BL GN
RD
RD
BL
BL BL
BK BN RD
RD
WH WH BK BK
BK
/WH
WH
WH
BK
BL
BK
BK
/ WH
WH
BL
WH
WH BN
BL
BN
WH BN BL
BN
BL
BK
WH
8
YL
YL
YL
YL
VL
BL
RD
BL
YL
8
YL5
1 3
HARDNESS
SENSOR(WH)
/ ATC (BK)
4-8-1. TROUBLESHOOTING WITH ERROR
Is displayed?
When you press both Water
level button and Spin button
simultaneously,
is the water level frequency
below 26.0 kHz?
level button and Spin button
simultaneously,
is the water level frequency
below 26.0 kHz?
Check the AIR
CHAMBER
and the tube
(clogged).
CHAMBER
and the tube
(clogged).
Is filter inlet valve clogged
with foreign material?
Is resistance between
each terminal of INLET
VALVE ASSEMBLY
0.8-1.2 k ?
each terminal of INLET
VALVE ASSEMBLY
0.8-1.2 k ?
Replace the
INLET VALVE
ASSEMBLY.
INLET VALVE
ASSEMBLY.
Is the voltage of the inlet
valve connector 12V DC?
( Check the all terminal of
valve connector 12V DC?
( Check the all terminal of
INLET VALVE ASSEMBLY
while the power is on.)
while the power is on.)
Replace the
INLET VALVE
ASSEMBLY
INLET VALVE
ASSEMBLY
is the water level frequency
below 24.6 kHz?
below 24.6 kHz?
Check the
PRESSURE
SWITCH
PRESSURE
SWITCH
Replace the MAIN PWB
ASSEMBLY
ASSEMBLY
No
Yes
Yes
No
Yes
No
Yes
Yes
No
Yes
No
Yes
No
Yes
Replace the
MAIN HARNESS
MAIN HARNESS
Yes
No
No
Clean or
replace the filter.
replace the filter.
Is the connector connected to
inlet valve assembly
disconnected or
disassembled?
inlet valve assembly
disconnected or
disassembled?
Reconnect or
repair
the connector
repair
the connector
Is the connector connected to
MAIN PWB assembly dis-
connected or disassembled?
(NA1)
MAIN PWB assembly dis-
connected or disassembled?
(NA1)
Reconnect or
repair
the connector
repair
the connector
[Note] Environmental safety check list
1) No water tap leakage
2) No water tap freeze
3) No entanglement of water supply hose
4) No water shortage
5) No shrinkage on water supply hose due to
1) No water tap leakage
2) No water tap freeze
3) No entanglement of water supply hose
4) No water shortage
5) No shrinkage on water supply hose due to
a possible misuse of hot and cold water
6) No water supply hose leakage
INLET VALVE ERROR
42
Is the coil of the drain
pump too high or low?
(resistance of the coil
is 10-20 )
pump too high or low?
(resistance of the coil
is 10-20 )
(Refer to 9-4 Pump motor
assembly)
assembly)
Replace the
DRAIN
PUMP
ASSEMBLY.
DRAIN
PUMP
ASSEMBLY.
Is the voltage between
connectors out of range?
(CN5 pin5)
- After remove Terminal
Position Assurance (TPA)
of connector, check as follows.
connectors out of range?
(CN5 pin5)
- After remove Terminal
Position Assurance (TPA)
of connector, check as follows.
Replace the
MAIN PWB
ASSEMBLY.
MAIN PWB
ASSEMBLY.
Is displayed?
Yes
No
No
Yes
Yes
DRAIN ERROR
- Pump running : 220V 5%
- Stopped Motor/Pump : 0~1V
- Stopped Motor/Pump : 0~1V
Method
1. Press the Power button, while the SPIN SPEED
1. Press the Power button, while the SPIN SPEED
button and SOIL LEVEL button is pressed
simultaneously.
simultaneously.
2.Press Start/Pause button
: 1 time
Pump slow-speed running
: 2 times
Pump mid-speed running
: 3 times
Pump high-speed running
: 4 times
Stop the Motor/Pump
When you press both
Water level button and
Spin button
simultaneously, is the
water level frequency
below 26.0 kHz?
Water level button and
Spin button
simultaneously, is the
water level frequency
below 26.0 kHz?
Check the AIR
CHAMBER
,the tube
(clogged),
and press
switch
CHAMBER
,the tube
(clogged),
and press
switch
Yes
No
Yes
Drain pump
Connection connector
Is the connector connected
to pump motor assembly
disconnected or
disassembled?
to pump motor assembly
disconnected or
disassembled?
Reconnect or
repair
the connector
repair
the connector
[Note] Environmental check list
1) The drainage hose must not stay in a lower position
2) The drainage hose must not be bent or
1) The drainage hose must not stay in a lower position
2) The drainage hose must not be bent or
clogged in any way due to the surrounding
physical configuration
physical configuration
3) The drainage hose must not get frozen at all times.
4) The drainage pump must not have any improper
4) The drainage pump must not have any improper
substance or material inside that may cause
a machine breakdown
.
43
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