F71257XMS, F81257XM, F81257XMS - LG Washing Machine Service Manual (repair manual). Page 3

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CONTENTS

1. SPECIFICATION ............................................................................................................................ 3

4

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

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

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

5. OPERATION

  ................................................................................................................... .................12

5-1. F**96(T/Q)D(P)(1~9)

  ..................................................................................................................12

14

6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART..............................................................
7. TROUBLESHOOTING......................................................................................................................17

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7-1. BEFORE PREFORMING SERVICE

 

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7-2. LOAD TEST MODE

 

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7-3. HOW TO KNOW THE WATER LEVEL FREQUENCY

 

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7-4. ERROR DISPLAY...................................................................................................................... 18

19

7-5. TROUBLESHOOTING WITH ERROR

 

......................................................................................

• IE ( Water Inlet Error)

 

............................................................................................................... 19

• UE (Unbalanced Error)  

............................................................................................................. 20

• OE ( Water Outlet Error)  

........................................................................................................... 21

• FE (Flow over Error)  

................................................................................................................. 23

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• PE (Pressure Sensor S/W Error)  

..............................................................................................

• DE (Door open Error)  

............................................................................................................... 25

• tE (Thermistor (Heating) Error)

 

................................................................................................. 26

• LE (Motor Lock Error)  

............................................................................................................... 27

29

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8. TROUBLESHOOTING WITHOUT ERROR CODES

 

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• PF (Power Failure or no power)

 

...............................................................................................

• Vibration & Noise in spin

 

........................................................................................................... 30

31

• Detergent & Softener does not flow in

 

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• Water Leak  ............................................................................................................................... 32

9. DISASSEMBLY INSTRUCTIONS

 

.................................................................................................... 34

10. EXPLODED VIEW

 

.......................................................................................................................... 41