WB91006QP, WB91206QT - LG Washing Machine Service Manual (repair manual). Page 3

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CONTENTS
1. SPECIFICATIONS ............................................................................................................................ 3
4
2. FEATURES & TECHNICAL EXPLANATION
....................................................................................
3. PARTS IDENTIFICATION
............................................................................................................... 6
4. INSTALLATION
................................................................................................................. 7
5. OPERATION
 
...................................................................................................................12
5-1. F**B9QDT2(1 9)  
......................................................................................................................
12
14
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART
..............................................................
7. TROUBLESHOOTING
...................................................................................................................... 16
16
16
16
7-1. BEFORE PREFORMING SERVICE
 
..........................................................................................
7-2. LOAD TEST MODE
 
...................................................................................................................
7-3. HOW TO KNOW THE WATER LEVEL FREQUENCY
 
..............................................................
7-4. ERROR DISPLAY ...................................................................................................................... 17
18
7-5. TROUBLESHOOTING WITH ERROR
 
......................................................................................
• IE ( Water Inlet Error)
 
............................................................................................................... 18
• UE (Unbalanced Error)  
............................................................................................................. 19
• OE ( Water Outlet Error)  
........................................................................................................... 20
• FE (Flow over Error)
 
................................................................................................................. 22
23
• PE (Pressure Sensor S/W Error)
 
..............................................................................................
• DE (Door open Error)  
............................................................................................................... 24
• tE (Thermistor (Heating) Error)
 
................................................................................................. 25
• LE (Motor Lock Error)
 
............................................................................................................... 26
28
28
8. TROUBLESHOOTING WITHOUT ERROR CODES
 
........................................................................
• PF (Power Failure or no power)
 
...............................................................................................
• Vibation & Noise in spin
 
........................................................................................................... 29
30
• Detergent & Softener does not flow in
 
.....................................................................................
• Water Leak  ............................................................................................................................... 31
9. DISASSEMBLY INSTRUCTIONS
 
.................................................................................................... 33
10. EXPLODED VIEW
 
.......................................................................................................................... 40
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