WD-12180TDS, WD-14180TDS - LG Washing Machine Service Manual (repair manual). Page 3

1. SPECIFICATIONS ............................................................................................................................. 3

2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4

3. PARTS IDENTIFICATION  ................................................................................................................. 6

4. INSTALLATION .................................................................................................................................. 7

5. OPERATION  ................................................................................................................................... 12

6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART  ............................................................ 14
7. TROUBLESHOOTING......................................................................................................................18

7-1.BEFORE PERFORMING SERVICE ......................................................................................... 18
7-2.LOAD TEST MODE .................................................................................................................. 18
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY  ............................................................. 19
7-4.HOW TO KNOW THE TEMPERATURE OF EACH THERMISTOR IN OPERATING CONDITION . 19
7-5.ERROR DISPLAY ..................................................................................................................... 20
7-6.TROUBLESHOOTING WITH ERROR  ..................................................................................... 22

• IE (Water Inlet Error)  .............................................................................................................. 22
• UE (Unbalance Error) ............................................................................................................. 23
• OE (Drain Error)  ..................................................................................................................... 24
• FE (Overflow Error)  ................................................................................................................ 26
• PE (Pressure Sensor Error)  ................................................................................................... 27
• dE (Door open Error) .............................................................................................................. 28
• tE (Thermistor (Heating) Error) ............................................................................................... 29
• LE (Motor Lock Error) ............................................................................................................. 30

8. TROUBLESHOOTING ELSE .......................................................................................................... 32

• PF (Power Failure or no power)  ............................................................................................. 32
• Vibation & Noise in spin  ......................................................................................................... 33
• Detergent & Softener does not flow in .................................................................................... 34
• Water Leakage  ....................................................................................................................... 35

9-1 FILTER ASSEMBLY(LINE FILTER) .............................................................................................. 37

9-2 DOOR LOCK SWITCH ASSEMBLY ............................................................................................. 38

9-3 STATOR ASSEMBLY .................................................................................................................... 40

9-4 PUMP MOTOR ASSEMBLY ......................................................................................................... 43

9-5 INLET VALVE ASSEMBLY............................................................................................................ 44

10. DISASSEMBLY INSTRUCTIONS ................................................................................................. 45

11. EXPLODED VIEW AND PART LIST ............................................................................................. 53