Read LG WD-12470TD / WD-14475TD Service Manual online
2
CONTENTS
1. SPECIFICATIONS ............................................................................................................................. 3
2. FEATURES & TECHNICAL EXPLANATION ..................................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................................. 6
4. INSTALLATION .................................................................................................................................. 7
5. OPERATION ................................................................................................................................... 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 ............................................................. 18
7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION .. 18
7-5.ERROR DISPLAY ..................................................................................................................... 19
7-6.TROUBLESHOOTING WITH ERROR ..................................................................................... 20
• IE (Water Inlet Error) .............................................................................................................. 20
• UE (Unbalanced Error) ........................................................................................................... 21
• OE (Water Outlet Error) .......................................................................................................... 22
• FE (Flow over Error) ............................................................................................................... 24
• PE (Pressure Sensor S/W Error) ............................................................................................ 25
• DE (Door open Error) ............................................................................................................. 26
• tE (Thermistor (Heating) Error) ............................................................................................... 27
• LE (Motor Lock Error) ............................................................................................................. 28
8. TROUBLESHOOTING ELSE .......................................................................................................... 30
• No Power ................................................................................................................................ 30
• Vibation & Noise in spin ......................................................................................................... 31
• Detergent & Softener does not flow in .................................................................................... 32
• Water Leak ............................................................................................................................. 33
9. COMPONENT TESTING INFORMATION ..................................................................................... 35
9-1. FILTER ASSEMBLY (LINE FILTER) .................................................................................. 35
9-2. DOOR LOCK SWITCH ASSEMBLY ................................................................................ 36
9-3. STATOR ASSEMBLY ....................................................................................................... 38
9-4. PUMP MOTOR ASSEMBLY ............................................................................................. 41
9-5. INLET VALVE ASSEMBLY .............................................................................................. 42
9-6. THERMISTOR ASSEMBLY ............................................................................................. 43
10. DISASSEMBLY INSTRUCTIONS ................................................................................................ 44
11. EXPLODED VIEW ......................................................................................................................... 51
Click on the first or last page to see other WD-12470TD / WD-14475TD service manuals if exist.