LG Wm2688hm Service Manual

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405&/&3.9H
IG HWASH IN GHIG H
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TE A M
DOOR L O CKES T.
 T I
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5
%N ORM ALCH IL D  L O CKD ELA Y  W ASH1:21
H IGHW ASH IN GHIGH
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ALCHIL D L OCKD
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AS H1:21
H IG HW ASH IN GHIG H
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TE A M
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G
						

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5. OPERATION
WM2688H*MA  
						

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• Use this button to turn the power On/Off.
• Rotate the  Cycle selector knob to select the cycle designed for
different types of fabric and soil levels. • Use this button to Start/
Stop the washer.
• It shows elapsed time of the cycle the washer is
operating.
Power Button Status Indicator
Start/Pause
Cycle Selector Knob  
						

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•PREWASH: Use this option for loads that need pretreatment. It adds 16 minutes pre\
wash and a spin cycle.
• RINSE+SPIN : Use this option to rinse and then spin.
• EXTRA RINSE : This option provides an additional rinse.
• STAIN CYCLE : Adds time to the wash and rinse cycles for better stain removal. Autom\
atically provides a rinse.
•  WATER PLUS : Add extra water to the wash and rinse cycles for superior results.
• Select a water temperature based on the type of load you are washing. 
• To change the spin speed, press the Spin Speed button repeatedly to cycle\
 through available options.
• To change the soil level, press the Soil Level button repeatedly until th\
e desired setting is on.
• Press repeatedly to adjust the volume of the Beeper
Option Button
Wash/Rinse, Spin speed, Soil Level, Beeper Button  
						

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6. WIRING DIAGRAM/PROGRAM CHART
INLET VALVE
DISPLAY PWBDISPLAY PWB
2341
234
1MAIN PWB
AG
WASHWH
  /  /
123456
123 123
123
4 1234
1234 21
2121
21
56 123456
12341234
1234
56123
123
231
213213
NA
NA NA
67823451
678
2345
1
67823451
678
2345
1
67823451
1234
1234321
32121
21123
1234
4123
1234
4
MOTOR
PRESSURE
 SENSOR
THERMISTORPOWER 
 CORD
+HOUSING
32
321
1
12
1
UVW 2
12
1212
12
3 3
12
123343
43221 1
12
1233
54
543
32
21 1
Ha
Hb
GND
FUSEFUSE
12 12 1212 12    
/
NOISE
FILTER
GND L S AG
SENSOR
PLC MODEM
123
123
123
123
87654321
12
DOOR LOCK 
4
SOLE
NOID
321
2345
Base/Line
MEZ31823211
12
123 3
123
123
 **
Cool-down**Approx.
(Minutes)
* Wash time is in minutes.
** The total working time will vary with the load size,
    water temperature and ambient temperature.
Normal
\bulky
\fLarge  
Hand Wash
\fWool \baby Wear
25
120
14
1970
Steam  
						

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7. TROUBLESHOOTING
7-1. BEFORE PERFORMING SERVICE

						

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7-4. ERROR DISPLAY
IIf you press the START/PAUSE button when an error is displayed, any error except  G/G0will
disappear and the machine will go into the pause status.
I In case of  G/G0
G/G0 
G/G0 if the error is not resolved within 20 sec., or the in case of other
errors, if the error is not resolved within 4 min., power will be turned\
 off automatically and the error
code will blink. But in the case of  G/G0, power will not be turned off.
ERROR SYMPTOM CAUSE
WATER INLET
ERROR • Correct water level (246) is not reached within 8 minutes
after water is supplied or it does not reach the preset water
level within 25 minutes.
• The load is too small.
• The appliance is tilted.
• Laundry is gathered to one side.
• Non distributable things are put into the drum.1
2
IMBALANCE ERROR
• Not fully drained within 10 minutes.
3DRAIN
ERROR
• Water is overflowing (water level frequency is over 213).
						

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ERROR SYMPTOMCAUSE
• The connector (3-pin, male, white) in the MOTOR
HARNESS is not connected to the connector 
(3-pin, female, white) of STATOR 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.
• The MOTOR HARNESS between the STATOR ASSEMBLY and MAIN PWB ASSEMBLY is cut (open
circuited).
• The hall sensor is out of order/defective.
8
LOCKED MOTORERROR
• The washer experienced a power failure.11POWER
FAILURE • EEPROM is out of order.

						

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8-1. DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION
8. ERROR DIAGNOSIS AND CHECK LIST
SYMPTOMGUIDE FOR SERVICE CALL
No power 
Water inlet trouble
YES
YES
YES NO NO
YES
NO NO
Is the power plug connected firmly to 
120 V AC outlet?
Power failure? or Breaker opened?
Is the outlet controlled by a switch?
Visit to service. 
Is displayed?
Is the tap opened?
Is the tap frozen?
Is the water supply shut-off?
Is filter in the inlet valve clogged with
foreign material?
Visit to service. 
Clean the filter of
inlet valve  
						

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SYMPTOMGUIDE FOR SERVICE CALL
Door error
Drain trouble
Was the load too large? Visit  to service.
Visit  to service.