LG WD14070D6 Service Manual

2
CONTENTS
1. SPECIFICATION................................................................................................................................ 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 5
2-1.FEATURES.................................................................................................................................. 5
2-2.DETERMINE WASHING TIME BY FUZZY LOGIC ..................................................................... 6
3. PARTS IDENTIFICATION ................................................................................................................. 7
4. INSTALLATION .................................................................................................................................. 8
5. OPERATION ................................................................................................................................... 14
6. WIRING DIAGRAM / PCB LAYOUT / PROGRAM CHART ............................................................ 18
7. TROUBLESHOOTING......................................................................................................................20
7-1.CHECK BEFORE SERVICE .................................................................................................... 20
7-2.LOAD TEST MODE .................................................................................................................. 20
7-3.HOW TO CHECK THE WATER LEVEL FREQUENCY ............................................................ 21
7-4.
HOW TO CHECK THE TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION ...... 21
7-5.HOW TO CHECK THE VIBRATION SENSOR ......................................................................... 22
7-6.ERROR DISPLAY ..................................................................................................................... 23
7-7 TROUBLESHOOTING WITH ERROR CODES ....................................................................... 25
• IE (Water Inlet Error) .............................................................................................................. 25
• UE (Unbalance Error) ............................................................................................................. 26
• OE (Water Outlet Error) .......................................................................................................... 27
• FE (Overflow Error) ................................................................................................................ 29
• PE (Pressure Sensor S/W Error) ............................................................................................ 30
• dE (Door Open Error) ............................................................................................................. 31
• tE (Thermistor (Heating) Error) ............................................................................................... 32
• LE (Motor Locked Error) ......................................................................................................... 33
• AE (Water Leakage) ................................................................................................................35
8. TROUBLESHOOTING WITHOUT ERROR CODES ...................................................................... 36
• No Power ................................................................................................................................ 36
• Vibration & Noise during spin ................................................................................................. 37
• Detergent & Softener does not flow in .................................................................................... 38
• Water Leak ............................................................................................................................. 39
9. PART INSPECTION ........................................................................................................................ 41
9-1 FILTER ASSEMBLY(LINE FILTER) .......................................................................................... 41
9-2 DOOR LOCK SWITCH ASSEMBLY.......................................................................................... 42
9-3 STATOR ASSEMBLY ................................................................................................................ 44
9-4 PUMP MOTOR ASSEMBLY...................................................................................................... 47
9-5 INLET VALVE ASSEMBLY ........................................................................................................ 48
10. DISASSEMBLY INSTRUCTIONS ................................................................................................. 49
11. EXPLODED VIEW AND PART LIST ............................................................................................. 63

LG WD14070D6 Specifications

General

Brand	LG
Model	WD14070D6
Category	Washer
Language	English