F12A8TDSA - LG Washing Machine Service Manual (repair manual)

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

Read LG F12A8TDSA Service Manual online

WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS
CORRECTLY BEFORE OFFERING SERVICE.
BEFORE SERVICING THE WASHING MACHINE, UNPLUG THE POWER
CORD TO AVOID THE RISK OF AN ELECTRIC SHOCK. 
WHEN  SERVICING  INTERNAL  PARTS,  USE  ONLY  SERVICE  PARTS
SUPPLIED FROM LG. 
AFTER SERVICING THE ELECTRIC WIRE, INSURE THAT INSULATION
TAPE IS APPLIED TO PREVENT AN ELECTRICAL SHORT.
MODEL : F14A8TDSA(1~9) / F12A8TDSA(1~9)
F14A8QDSA(1~9) / F12A8QDSA(1~9)
2
CONTENTS
1. SPECIFICATIONS ............................................................................................................................. 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4
3. PARTS IDENTIFICATION  ................................................................................................................. 6
4. INSTALLATION .................................................................................................................................. 7
5. OPERATION ................................................................................................................................... 12
6. WIRING DIAGRAM / PCB LAYOUT ................................................................................................ 14
7. TROUBLESHOOTING ......................................................................................................................19
7-1.BEFORE PERFORMING SERVICE ......................................................................................... 19
7-2.LOAD TEST MODE .................................................................................................................. 19
7-3.HOW TO CHECK THE WATER LEVEL FREQUENCY ............................................................ 20
7-4.HOW TO CHECK THE TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION ...... 20
7-5.ERROR DISPLAY ..................................................................................................................... 21
7-6.TROUBLESHOOTING WITH ERROR ..................................................................................... 23
• IE (Water Inlet Error)  .............................................................................................................. 23
• UE (Unbalanced Error) ........................................................................................................... 24
• OE (Water Outlet Error) .......................................................................................................... 25
• FE (Over Flow Error)  .............................................................................................................. 27
• PE (Pressure Sensor S/W Error) ............................................................................................ 28
• dE (Door open Error) .............................................................................................................. 29
• tE (Thermistor (Heating) Error) ............................................................................................... 30
• LE (Motor Lock Error) ............................................................................................................. 31
8. TROUBLESHOOTING OTHER ...................................................................................................... 33
• No power  ................................................................................................................................ 33
• Vibration & Noise during spin  ................................................................................................. 34
• Detergent & Softener does not flow in .................................................................................... 35
• Water Leak  ............................................................................................................................. 36
9. PART INSPECTION ........................................................................................................................ 38
9-1.FILTER ASSEMBLY (LINE FILTER) ......................................................................................... 38
9-2.DOOR LOCK SWITCH ASSEMBLY ......................................................................................... 39
9-3.STATOR ASSEMBLY  ............................................................................................................... 41
9-4.PUMP MOTOR ASSEMBLY ....................................................................................................... 44
9-5.INLET VALVE ASSEMBLY  ....................................................................................................... 45
10. DISASSEMBLY INSTRUCTIONS .................................................................................................. 46
11. EXPLODED VIEW AND PART LIST .............................................................................................. 54
3
1. SPECIFICATION
To reduce the risk of personal injury, adhere to all industry recommended safety procedures including
the use of long sleeved gloves and safety glasses. 
Failure to follow all of the safety warnings in this manual could result in property damage, personal
injury or death.
WARNING
ITEM
POWER SUPPLY
PRODUCT WEIGHT
OPERATION WATER PRESSURE
CONTROL TYPE 
WASH CAPACITY
DIMENSION
WASH PROGRAM
RINSE
DOOR SWITCH TYPE 
WATER LEVEL 
RESERVATION
SENSING LAUNDRY AMOUNT 
FUZZY LOGIC 
DISPLAY REMAINING TIME
ERROR DIAGNOSIS 
POWER AUTO OFF 
CHILD LOCK 
AUTO RESTART
TIME SAVE
ELECTRICITY
CONSUMPTION
WASHING
SPIN
DRAIN MOTOR
STEAM HEATER
WASH HEATER
REVOLUTION
SPEED
WASH
SPIN
F14A8*DSA(1~9) : No Spin / 400 / 800 / 1000 / 1400
F12A8*DSA(1~9) : No Spin / 400 / 800 / 1000 / 1200
46 rpm
100 ~ 1000 kPa (1.0 kgf / cm
2
~ 10.0 kgf / cm
2
)
Electronic
Refer to the Rating Label
600 mm (W) x 590 mm (D) x 850 mm (H)
Cotton, Cotton Eco, Mix, Easy Care, Duvet, Allergy Care, Refresh, 
Sports Wear, Dark Wash, Delicate, Wool, 
Intensive 60, Quick 30, Silent Wash
Normal, Rinse+, Rinse++, Rinse++Hold, Normal+Hold
PTC+Solenoid
by Pressure Sensor S/W
From 3 hours to 19 hours
Adapted
Adapted
Adapted
10 items
Adapted
Adapted
Adapted
Adapted
190 W
380 W 
30 W
1200 W
2120 W
220 V - 240 V ~, 50 Hz
66 kg
F14A8TDSA(1~9) / F12A8TDSA(1~9) / F14A8QDSA(1~9) / F12A8QDSA(1~9)
5
2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES
Direct Drive System
The advanced Brushless DC motor directly drives the drum without belt and pulley.
Built-in Heater
Child Lock
The Child lock prevents children from pressing any Buttons to change the settings during
operation.
More economical by Intelligent Wash System
Intelligent Wash System detects the amount of load and water temperature, and then
determines the optimum water level and washing time to minimize energy and water
consumption.
Low noise speed control system
By sensing the amount of load and balance, it evenly distributes load to minimize the
spinning noise level.
Inverter Direct Drive system
The advance Brushless DC motor directly drives the drum without belt
and pulley.
6 motion
Washer is able to perform various drum actions or a combination of different actions
depending on the wash program selected.
Combined with a controlled spin speed and the ability of the drum to rotate both
left and right, the wash performance of the machine is greatly improved, givong
you perfect results every time.
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Download LG F12A8TDSA Service Manual (Repair Manual)

Here you can read online and download LG F12A8TDSA Service Manual in PDF. F12A8TDSA service manual will guide through the process and help you recover, restore, fix, disassemble and repair LG F12A8TDSA Washing Machine. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.