DOWNLOAD LG F1289QD5 Service Manual ↓ Size: 7.72 MB | Pages: 45 in PDF or view online for FREE

Model
F1289QD5
Pages
45
Size
7.72 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
f1289qd5.pdf
Date

LG F1289QD5 Service Manual ▷ View online

16
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART
BL
BL
BL
BL
YL
YL
YL
VL
OR
YL
YL
/
RD
YL
BL
/
RD
BL
/
WH
BL
/
WH
BL
/
WH
BL
BL
BL
BL
BL
GN
/YL
GN
/YL
GN
/YL
BL
SBL
VL
OR
BL
/
WH
BL
/
WH
BL
/
WH
SBL
BN
/
YL
BN
BN
BL
BN
YL
BK
RD
NA
NA
NA
NA
NA
WH
WH
WH
WH
WH
RD
RD
RED
RD
RD
BK
BK
BK
BK
BK
BK
WH
BK
WH
/
BK
WH
/
BK
GY
/
WH
GY
/
WH
GY
RD
123
4
12
3
4
12
3
4
12
3
4
12
12
12
12
12
34
56
1
1
1
1
12
2
26
3
1
45
26
3
1
4
12
1
2
1
2
1
1
1
2
2
2
3
(S)
(G)
(S)
3
1
2
1
2
1
2
3
12
3
2
2
2
1
1
1
3
2
1
54
2
31
54
2
3
GND
Ha
Hb
1
3
2
1
3
21
21
21
21
21
21
21
23
1
23
1
2
31
2
31
1
1
23
1
23
1
NOISE
FIL
TER
PO
WER CORD
WA
SHIG HEA
TER
DRAIN
 PUMP
DOOR LOCK S/W
INLET V
A
LV
E
INLET V
A
LV
E
THERMIST
OR
PRESSURE
SENSOR
THERMIST
OR
PRESSURE
SENSOR
Motor
H
O
T
WV
U
P
R
E
PTC
M
A
I
N
P
R
E
M
A
I
N
3
4
45
2
2
23
3
3
3
34
4
45
5
56
6
6
Wiring Diagram
[Note]
RD : Red
YL : Yellow
BL : Blue
WH : White
GY : Gray
BK : Black
VL : Violet
OR : Orange
SBL : Sky Blue
NA : Natural
17
PCB Layout
Display
Display
PCB Power & Heater
Pressure Switch
&
Heater Thermistor
Measure Hz impossible here
Just check cut-off.
Heater Thermistor
(44~53KΩ, 25°C)
Pressure Switch
Common
Drain Pump
&
Door
&
Inlet Valve
Door Switch
Measure R impossible here
Common
Motor
&
Hall Sensor
V ~ U / U ~ W / W ~ V
R : 8 ~11Ω
V   
U  
W
Hb
(5~15kΩ)
Ha
(5~15kΩ)
Common
Drain Pump
(160~177Ω)
Pre. Valve
(3.5~4.5kΩ)
Main Valve
(3.5~4.5kΩ)
Heater
(24.7~28.0Ω)
PCB Power
Before servicing ask the customer what the trouble is.
Check the adjustments. (Power supply :220-240V~, Removal of transit bolts etc..)
Check the troubles referring to the troubleshooting.
Decide service steps referring to disassembly instructions.
Then, service and repair.
After servicing, operate the appliance to see whether it works OK or NOT.
18
7. TROUBLESHOOTING
7-1. BEFORE PERFORMING SERVICE
7-2. LOAD TEST MODE
1 F1*89QD* / F1*92QD* : Press and Hold ‘
Temp.
’ & ‘
Spin
’ buttons and 
Power
’ button.
7-3. HOW TO KNOW THE WATER LEVEL FREQUENCY
F1*89QD* / F1*92QD* : Press and Hold ‘
Temp.
’ & ‘
Medic Rinse
buttons simultaneously.
2 The washer must be empty and the controls must be in the off state.
then press ‘
3 Press Power with above two buttons pressed and then buzzer will sound.
4 Press the Start/Pause button repeatedly to cycle through the test modes
1
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
Clockwise spin (right) 
Low speed Spin 
High speed Spin
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
Counterclockwise 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) : F10**QD(1~9)
Motor rpm (About 1100~1250) : F12**QD(1~9) 
Motor rpm (About 1350~1400) : F14**QD(1~9) 
Water level frequency (225~265)
Water level frequency (225~265)
Water level frequency (225~265)
Motor rpm (About 47)
Water Temperature
Water level frequency
The digits means water level frequency (10
-1
kHz)
ex) 241 : Water level frequency = 241 X 10
-1
kHz
= 24.1kHz
Pressing number of
[Start/Pause] button
Checking Point
Display Status
F1*89QD
F1*92QD
19
7-4. ERROR DISPLAY
If you press the [Start/Pause] button when an error in displayed, any error except software ERROR will
disappear and the machine will change into pause status.
In case of        ,        ,        , if the error is not resolved within 15 sec. In case of other errors, if the
error is not resolved within 4 min. Power will be turned off automatically and the error only will be
blinked. But in the case of       , power will not be turned off.
ERROR
SYMPTOM
CAUSE
WATER 
I
NLET
E
RROR
Water has not reached to the pre-set level within 4 min.
since inlet valve operated, or water has not reached to
the normal level within 25 min. 
Page 21
1
U
NBALANCED 
E
RROR
2
WATER 
O
UTLET
E
RROR
3
OVER
F
LOW 
E
RROR
4
The appliance is tilted.
Laundry is gathered to one side.
Non distributable things are put into the drum.
Page 22
Water has not drained enough within 8 min.
Page 23
Water is automatically being pumped out because too
amuch water is in the tub.
Page 25
P
RESSURE SENSOR
S/W 
E
RROR
5
The sensor pressure switch is out of order.
Page 26
D
OOR OPEN 
E
RROR
6
The [Start/Pause] button is pressed with the door open.
The door switch is out of order.
Page 27
T
HERMISTOR(HEATING)
E
RROR
7
The thermistor is out of order. 
Page 28
P
OWER
F
AILURE
10
The washer experienced a power failure.
C
URRENT
E
RROR
8
PWB ASSEMBLY (Main) is out of order
Replace the PWB assembly (Main)
Winding in the MOTOR is short-circuited.
Replace the MOTOR
MOTOR
L
OCKED 
E
RROR
9
The Connector (3-pin, male, white) in the wire harness
is not connected to the Connector (3-pin, female, white)
of MOTOR.
Reconnect or repair the connector
The electric contact between the connectors [3-pin,
male, white in the wire harness and 6-pin, female, white
in the PWB ASSEMBLY (Main]) is bad or unstable.
Reconnect or repair the contact in the connector
The wire harness between the MOTOR and PWB
ASSEMBLY (Main) is cut (open circuited).
The hall sensor is out of order/defective.
Page 29
Page of 45
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