WD-8056QD - 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

5-1. WD-1022QD.............................................................................................................................. 12
5-2. WD-8056QD  ............................................................................................................................. 14

6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART  ............................................................ 16
7. TROUBLESHOOTING......................................................................................................................19

7-1.BEFORE PREFORMING SERVICE ......................................................................................... 19
7-2.LOAD TEST MODE .................................................................................................................. 19
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY  ............................................................. 19
7-4.ERROR DISPLAY ..................................................................................................................... 20
7-5.TROUBLESHOOTING WITH ERROR  ..................................................................................... 21

• IE (Water Inlet Error)  .............................................................................................................. 21
• UE (Unbalanced Error) ........................................................................................................... 22
• OE (Water Outlet Error) .......................................................................................................... 23
• FE (Flow over Error) ............................................................................................................... 25
• PE (Pressure Sensor S/W Error) ............................................................................................ 26
• DE (Door open Error)  ............................................................................................................. 27
• tE (Thermistor (Heating) Error) ............................................................................................... 28
• LE (Motor Lock Error) ............................................................................................................. 29

8. TROUBLESHOOTING WITHOUT ERROR CODES  ...................................................................... 31

• PF (Power Failure or no power)  ............................................................................................. 31
• Vibation & Noise in spin  ......................................................................................................... 32
• Detergent & Softener does not flow in .................................................................................... 33
• Water Leak  ............................................................................................................................. 34

9. DISASSEMBLY INSTRUCTIONS  ................................................................................................... 36

10. EXPLODED VIEW ......................................................................................................................... 43