LG SW6D2 Service Manual ▷ View online
-16-
7. TROUBLESHOOTING GUIDE
Trouble
Cause
Repair Method
Power Supply
Power is not supplied to
washing machine.
washing machine.
Power cord is not plugged
into the wall outlet firmly.
into the wall outlet firmly.
Power is not supplied at the
wall outlet.
wall outlet.
Connect firmly.
Advise the customer.
Replace fuse or reset circuit breaker.
Advise the customer.
Spin Drying
After connecting to the power
source and turning spin timer ON,
spin motor does not operate.
source and turning spin timer ON,
spin motor does not operate.
After connecting to the power source
and turning spin timer ON, spin motor
does not operate properly.(When
spin motor makes strange noise.)
and turning spin timer ON, spin motor
does not operate properly.(When
spin motor makes strange noise.)
Plug or wiring is defective.
Spin timer is faulty.
Door switch is faulty.
Capacitor is defective.
Motor is defective.
Brake is defective.
Capacitor is defective.
Motor is defective.
Repair and rewire properly.
Replace with a new one.
Adjust or replace with a new one.
Replace with a new one.
Replace with a new one.
Adjust brake properly.
Replace with a new one.
Replace with a new one.
Washing and Rinsing
After connecting to the power
source and turning wash timer
source and turning wash timer
ON,
wash motor does not
operate.
After connecting to the power
source and turning wash timer
source and turning wash timer
ON,
wash motor does not operate
properly.
(When wash
motor
makes strange noise.)
Clothes do not swirl adequately
Amount of water decreases
while washing.
while washing.
While rinsing, water overflows
from corner of the wash tub.
from corner of the wash tub.
Plug or wiring is defective.
Wash timer is faulty.
Capacitor is defective.
Capacitor is defective.
Motor is defective.
Motor is defective.
Blockage between the pulsator
and the tub.
and the tub.
Excessive amount of clothes.
Valve selector position is not
correct.
correct.
Strap connection is not adjusted properly.
Plunger valve bellows is damaged.
Too much water.
Lint is sticking to the plunger valve.
Lint is sticking to the filter or hoses.
Drain pump does not operate.
(WP-710NP/WP-720NP)
(WP-710NP/WP-720NP)
Repair and rewire properly.
Replace with a new one.
Replace with a new one.
Replace with a new one.
Replace with a new one.
Replace with a new one.
Remove blockage.
Remove some clothes to
reduce wash load.
reduce wash load.
Set valve selector to proper position.
Advise the customer.
Advise the customer.
Adjust properly.
Replace with a new one.
Adjust amount of water filled.
Remove plunger valve cover and
clean the plunger valve.
clean the plunger valve.
Remove lint and clean.
See Other
-17-
Trouble
Cause
Repair Method
Spin Drying
While spining, spin dryer
basket is unbalanced.
basket is unbalanced.
Spining operation is not
proper.
proper.
After opening spin dryer cover,
spin dryer basket continues
revolving.
spin dryer basket continues
revolving.
Installation is unbalanced.
Installed area is not level.
Installed area is not level.
Load in spin dryer basket is
unbalanced.
unbalanced.
Bellows assembly is damaged.
Center between spin shaft and
coupling is unbalanced.
coupling is unbalanced.
Brake is defective.
Spin shaft is clogged.
Drain hose is clogged.
Bearing for bellows assembly is worn.
Brake is defective.
Vent is turned over or is not secure.
(WP-710NP/WP-720NP)
Vent is faulty. (WP-710NP/WP-720NP)
Advise the customer to install the
washing machine in a more stable
location.
washing machine in a more stable
location.
Re-distribute the load.
Advise the customer of correct loading.
Advise the customer of correct loading.
Replace with a new one.
Balance completely.
Adjust brake properly.
Remove blockage.
Remove blockage.
Replace with a new one.
Adjust brake properly.
Secure properly.
Replace with a new one.
Others
No draining
Drain pump does not operate
(WP-710NP/WP-720NP)
(WP-710NP/WP-720NP)
When draining water, water
does not flow out smoothly.
does not flow out smoothly.
Noise
Valve selector position is defective
or is not correct.
or is not correct.
Strap connection is defective.
Lint sticks to the filter or hoses.
Valve selector position is defective
or is not correct.
or is not correct.
Wiring is defective.
Mini switch is defective.
Drain pump interior(runner) is
clogged.
clogged.
Pump motor is defective.
Drain hose is clogged.
Lint is sticking to the plunger valve,
the filter or hoses.
the filter or hoses.
Blockage between the pulsator and
the tub.
the tub.
Bearing for pulsator shaft assembly
is worn.
is worn.
Bearing of bellows assembly is
worn.
worn.
Set valve selector to proper position.
Advise the customer.
Advise the customer.
Adjust properly.
Remove lint and clean.
Set valve selector to proper position.
Advise the customer.
Advise the customer.
Rewire properly.
Replace with a new one.
Remove blockage.
Replace with a new one.
Remove blockage.
Remove lint and clean.
Remove blockage.
Replace with a new pulsator shaft
assembly.
assembly.
Replace with bellows assembly.
-18-
Voltage change (only for Dual voltage)
Models equipped for dual voltage can be adjusted to operate on a power supply of either 110(or 127) or 220 volts.
However, in order to avoid the danger of fire and prevent damage to the washing machine, the voltage setting
must match the voltage of your power supply. The voltage set at the factory is indicated on the “PRESENT
VOLTAGE” column in the spec. label on the back of the washing machine.
To change the voltage setting, follow the procedure that follows:
However, in order to avoid the danger of fire and prevent damage to the washing machine, the voltage setting
must match the voltage of your power supply. The voltage set at the factory is indicated on the “PRESENT
VOLTAGE” column in the spec. label on the back of the washing machine.
To change the voltage setting, follow the procedure that follows:
1. Unplug the power cord from the electrical outlet, by grasping the plug itself.
2. Use a screwdriver to remove the back cover from the washing machine (Fig.a).
3. Remove the polyethylene bag covering the lead wire housings (Fig.b).
4. To change the voltage setting from 220V to 110 (or 127)V, disconnect the housing marked “220V” and connect
2. Use a screwdriver to remove the back cover from the washing machine (Fig.a).
3. Remove the polyethylene bag covering the lead wire housings (Fig.b).
4. To change the voltage setting from 220V to 110 (or 127)V, disconnect the housing marked “220V” and connect
the housing marked “110 (or 127)V”, to change the voltage setting from 110 (or 127)V to 220V, disconnect the
housing marked “110 (or 127)V” and connect the housing marked “220V” (Fig.c).
housing marked “110 (or 127)V” and connect the housing marked “220V” (Fig.c).
5. Cover the housings with the polyethylene bag and reattach the back cover.
6. Be sure to indicate the new voltage setting on the “PRESENT VOLTAGE” column in the spec. label for future
reference.
VALVE SELECTOR (CYCLE SELECTOR)
SPIN TIMER
WASH • RINSE
DRAIN
OFF
ON
OFF
Drain Pump
Pumping
Pumping
Off
Pumping
Off
Drain Pump Operation
Fig. a
Fig. b
Fig. c
Others
Water leakage
Hose connection is not secured.
Bearing for pulsator shaft assembly
is worn.
is worn.
Plunger valve bellows is damaged.
Plunger valve assembly is
damaged.
damaged.
Bellows assembly is damaged.
Bellows connection is not secured.
Secure firmly.
Replace with a new pulsator shaft
assembly.
assembly.
Replace with a new one.
Replace with a new one.
Replace with a new one.
Secure firmly.
Trouble
Cause
Repair Method
-19-
8. SCHEMATIC DIAGRAM
1)WP-710N/WP-720N/EW-1003T-C
OR/WH
SPIN
TIMER
TIMER
SPIN
TIMER
TIMER
PUMP
MOTOR
OR/WH
BK
BK
BK
MINI S/W
NC
COM
NO
BL/WH
DOOR
S/W
DOOR
S/W
WASH
TIMER
TIMER
WASH
TIMER
TIMER
SPIN
MOTOR
MOTOR
SPIN
MOTOR
MOTOR
WASH
MOTOR
MOTOR
BK
YL
RD
GY
WH
WH
WH(BL)
WH(BL)
BK
(BN)
BK
(BN)
GN(GN/YL)
BK
BK
NC
NO
COM
MINI
S/W
S/W
DOOR
S/W
S/W
DOOR
S/W
S/W
OR/WH
OR/WH
SPIN
TIMER
TIMER
SPIN
TIMER
TIMER
WASH
TIMER
TIMER
WASH
TIMER
TIMER
WASH
MOTOR
MOTOR
WASH
MOTOR
MOTOR
PUMP
MOTOR
MOTOR
SPIN
MOTOR
MOTOR
SPIN
MOTOR
MOTOR
YL/GN
YL/GN
YL/GN
YL/GN
RD
RD
RD
RD
220V
220V
YL
YL
YL
YL
YL
YL
YL
RD
YL
YL
YL
YL
YL
BK/YL
BK/YL
BK/YL
BK/YL
YL
VL
VL
VL
VL
PK
PK
PK
PK
OR/WH
OR/WH
OR/WH
BN/WH
BL/WH
BN/WH
BK/WH
BK/WH
BK/WH
BK/WH
BK(BN)
BK(BN)
BN
BN
BN
BL
BL
BL
BL
GN
(GN/YL)
GN
(GN/YL)
RD/WH
RD/WH
RD/WH
WH
WH
WH
WH
WH
WH
RD/WH
WH
WH
WH
WH(BL)
WH(BL)
WH
OR
OR
OR/WH
OR
OR
110(127V)
110(127V)
SKBL
SKBL
GY
GY
GY
GY
GY
GN
BN
BN
BN
GN
GY
GY
GY
GY
GY
GY
GY
GY
GY
GN(GN/YL)
BK/YL
WASH
MOTOR
MOTOR
YL
RD
GY
BK/YL
2)WP-710N/WP-720N(Dual Voltage)
3)WP-710NP/WP-720NP
4)WP-710NP/WP-720NP(Dual Voltage)
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