DOWNLOAD LG F12A8TDSA Service Manual ↓ Size: 13.49 MB | Pages: 56 in PDF or view online for FREE

Model
F12A8TDSA
Pages
56
Size
13.49 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
f12a8tdsa.pdf
Date

LG F12A8TDSA Service Manual ▷ View online

20
PCB Layout (Main)
  
Earth Wire Connector
 
21
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.
7. TROUBLESHOOTING
7-1. CHECK BEFORE SERVICE
7-2. LOAD TEST MODE
1 Touch and Hold ‘
Medic Rinse
’ & ‘
Rinse
’ buttons
and then press ‘
Power
’ button.
2 The washer must be empty and the controls must be in the off state.
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
F1495BDS(1~9), F1495BD(1~9)
1
2
3
4
5
6
Display Status
Remark
Check Point
Number
0
4
10 
11
12 
13
14  
Turns on all light and locks the door.
Tumble clockwise
Low speed spin
High speed spin
Inlet valve for prewash turns on.
Inlet valve for main wash turns on.
Inlet valve for hot water turns on.
Inlet valve for steam turns on.
Tumble counterclockwise
Heater turns on for 3 sec.
Circulation pump turns on.
Drain pump turns on.
Sensor for steam
Steam heater turns on for 1.2 sec.
Off
PGM Version Information
rpm(42~50)
rpm (60)
rpm (130~140)
Water level frequency
Water level frequency
Water level frequency
Water level frequency
rpm
Water temperature
Water level frequency 
Water level frequency 
Water level frequency
AG Temperature
-
For Hot&Cold Model
For Steam Model
For Steam Model
For Steam Model
22
7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY 
7-4. HOW TO CHECK THE TEMPERATURE OF EACH THERMISTOR
AT OPERATING CONDITION.
040
045
000
100
021
041
045
097
000
045
112
000
248
084
000
026
145
000
The digits indicate the water level frequency.
For example, if 255 is displayed 
the water level frequency is 25.5kHz (255 X 0.1).
Data View Type : In case of ‘040’
Touch the 
Temp.
and 
Pre Wash
button simultaneously.
If the knob is turned, the data view type is changed from 40 to 49
Touch the 
Temp.
and 
Pre Wash
button simultaneously.
If the knob is turned, the data view type is changed from 40 to 49
040
045
000
100
021
041
045
097
000
045
112
000
248
036
000
026
145
000
Thermistor in tub temperature
Data View Type : In case of ‘040’
23
If you press the Start/Pause button in error condition, any error except 
will disappear and the
machine will change into the pause status.
In case of 
, if the error is not resolved within 20 sec., and in case of all other errors, if the
error is not resolved within 4 min., the power will turn off automatically and the error only will blink.
But in the case of 
, the power will not turn off.
7-6. ERROR DISPLAY
ERROR
SYMPTOM
CAUSE
WATER 
I
NLET
E
RROR
• Not reached the water level(248) within 10 minutes
after water supplied or not reached to the preset
water level within 25 minutes. 
Page 26
1
U
NBALANCE
E
RROR
• The appliance is tilted.
• Laundry is gatherd to one side. 
Page 27
2
WATER 
O
UTLET
E
RROR
• Not fully drained within 10 minutes.
Page 28
3
OVER
F
LOW
E
RROR
• Water is overflowing (under 21.3kHz).
If "            " is displayed, the drain pump operates 
to drain the water automatically.
Page 30
4
P
RESSURE SENSOR
S/W 
E
RROR
• The pressure sensor switch is out of order.
Page 31
5
D
OOR OPEN 
E
RROR
• In case of operating the reservation function or the
other function with door opened. Close the door,
then the error display is resolved.
• The door switch is out of order.
Page 32
6
T
HERMISTOR(HEATING)
E
RROR
• The THERMISTOR is out of order.
Page 33
7
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