F1256QD, F1256QD1, F1256QD2, F1256QD5 - LG Washing Machine Service Manual (repair manual). Page 2

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CONTENTS
1. SPECIFICATIONS ............................................................................................................................. 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4
3. PARTS IDENTIFICATION  ................................................................................................................. 6
4. INSTALLATION .................................................................................................................................. 7
5. OPERATION  ................................................................................................................................... 12
5-1. F**  92T/QD(P)(1~9)  ......................................................................................................................
 
12
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART  ............................................................ 14
7. TROUBLESHOOTING......................................................................................................................17
7-1.BEFORE PREFORMING SERVICE ......................................................................................... 17
7-2.LOAD TEST MODE .................................................................................................................. 17
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY  ............................................................. 17
7-4.ERROR DISPLAY ..................................................................................................................... 18
7-5.TROUBLESHOOTING WITH ERROR  ..................................................................................... 19
• IE (Water Inlet Error)  .............................................................................................................. 19
• UE (Unbalanced Error) ........................................................................................................... 20
• OE (Water Outlet Error) .......................................................................................................... 21
• FE (Flow over Error) ............................................................................................................... 23
• PE (Pressure Sensor S/W Error) ............................................................................................ 24
• DE (Door open Error)  ............................................................................................................. 25
• tE (Thermistor (Heating) Error) ............................................................................................... 26
• LE (Motor Lock Error) ............................................................................................................. 27
      
7-4.Using SmartDiagnosis™...........................................................................................................   
29             
           
8. TROUBLESHOOTING WITHOUT ERROR CODES  ...................................................................... 30
           
• PF (Power Failure or no power)  ............................................................................................. 30
 
 
 
     
   
• Vibation & Noise in spin  ......................................................................................................... 31
           
• Detergent & Softener does not flow in .................................................................................... 32
           
• Water Leak  ............................................................................................................................. 33
           
9. DISASSEMBLY INSTRUCTIONS  ................................................................................................... 35
           
10. EXPLODED VIEW ......................................................................................................................... 42
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