LG WD-M8070TD Service Manual ▷ View online
20
P C B Layout
Display
Display
P ressure S witch
&
Heater T hermistor
Measure Hz impossible here
J ust check cut-off.
Heater T hermistor
(44~53K , 25¡ C )
P ressure S witch
C ommon
Drain P ump
&
Door
&
Inlet Valve
Door S witch
Measure R impossible here
Measure R impossible here
C ommon
Motor
&
Hall S ensor
V ~ U / U ~ W / W ~ V
R : 8 ~11
V
U
W
Hb
(5~15k )
Ha
(5~15k )
C ommon
Drain P ump
(160~177 )
P re. Valve
(3.5~4.5k )
Main Valve
(3.5~4.5k )
Heater
(24.7~28.0 )
P C B P ower
F**68*D(P)
P C B P ower & Heater
V
U
W
21
Program Chart
22
P rogram C hart
Blanket
Cotton Quick
39
545
1:22
F**68*D(P)
B efore servicing ask the customer what the trouble is.
C heck the adjustments. (P ower supply :220-240V ~, R emoval of transit bolts etc..)
C heck the troubles referring to the troubleshooting.
Decide service steps referring to disassembly instructions.
T hen, service and repair.
After servicing, operate the appliance to see whether it works OK or NOT.
C heck the adjustments. (P ower supply :220-240V ~, R emoval of transit bolts etc..)
C heck the troubles referring to the troubleshooting.
Decide service steps referring to disassembly instructions.
T hen, service and repair.
After servicing, operate the appliance to see whether it works OK or NOT.
23
7. T R OUB LE S HOOT ING
7-1. B E F OR E P E R F OR MING S E R V IC E
7-2. LOAD T E S T MODE
1 F1*22TD : P ress and Hold ‘
Temp.'&'Spin'buttons and then press 'Power'button.
F1*20TD : Press and Hold 'Option'&'Spin'buttons and then press 'Power' button.
F**68*D(P) : Press and Hold 'Temp.'&'Spin'buttons and then press 'Power'button.
The washer must be empty and the controls must be in the off state.
7-3. HOW TO K NOW T HE WAT E R LE V E L F R E QUE NC Y
F 1*22T D : P ress and Hold 'T emp.''Medic R inse'buttons simultaneously.
F 1*20T D : P ress and Hold 'Intensive' button.
F **68*D(P ) :P ress and Hold 'T emp.''Medic R inse'buttons simultaneously.
F 1*20T D : P ress and Hold 'Intensive' button.
F **68*D(P ) :P ress and Hold 'T emp.''Medic R inse'buttons simultaneously.
3 P ress P ower with above two buttons pressed and then buzzer will sound.
4 P ress the S tart/P ause button repeatedly to cycle through the test modes
4 P ress the S tart/P ause button repeatedly to cycle through the test modes
1
2
3
4
5
6
2
3
4
5
6
None
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
10 times
All lamps turn on
C lockwise spin (right)
Low speed S pin
High speed S pin
Inlet valve for pre-wash operation
Inlet valve for main-wash operation
Hot inlet valve in case of hot water fill
Inlet valve for main-wash operation
C ounterclockwise spin (left)
A Heater is in operation for 3 sec.
Draining pump operation
Auto off operation
Motor rpm (About 47)
Motor rpm (About 590~650)
Motor rpm (About 950~1050) : F 10**T D(1~9)
Motor rpm (About 1100~1250) : F 12**T D(1~9)
Motor rpm (About 1350~1400) : F 14**T D(1~9)
Water level frequency (225~265)
Water level frequency (225~265)
Water level frequency (225~265)
Motor rpm (About 47)
Water T emperature
Water level frequency
T he digits means water level frequency (10
-1
kHz)
ex) 241 : Water level frequency = 241 X 10
-1
kHz
= 24.1kHz
P res s ing number of
[S tart/P aus e] button
C hecking P oint
Dis play S tatus
1
2
F 1*22T D
F 1*20T D
F **68*D(P )
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