Read LG WF-7805SRD Service Manual online
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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 ......................................................................................................................18
7-1.BEFORE PREFORMING SERVICE ......................................................................................... 18
7-2.LOAD TEST MODE .................................................................................................................. 18
7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY ............................................................. 19
7-4.HOW TO KNOW TO TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION .. 19
7-5.ERROR DISPLAY ..................................................................................................................... 20
7-6.TROUBLESHOOTING WITH ERROR ..................................................................................... 21
• IE (Water Inlet Error) .............................................................................................................. 21
• UE (Unbalanced Error) ........................................................................................................... 22
• OE (Water Outlet Error) .......................................................................................................... 23
• FE (Flow over Error) ............................................................................................................... 25
• PE (Pressure Sensor S/W Error) ............................................................................................ 26
• DE (Door open Error) ............................................................................................................. 27
• tE (Thermistor (Heating) Error) ............................................................................................... 28
• LE (Motor Lock Error) ............................................................................................................. 29
• DHE (Dry Heater Error) .......................................................................................................... 31
• Dry Heater Trouble ................................................................................................................. 32
• Dry Fan Motor Trouble ............................................................................................................ 33
8. TROUBLESHOOTING ELSE .......................................................................................................... 34
• No Power ................................................................................................................................ 34
• Vibation & Noise in spin ......................................................................................................... 35
• Detergent & Softener does not flow in .................................................................................... 36
• Water Leak ............................................................................................................................. 37
9. DISASSEMBLY INSTRUCTIONS ................................................................................................... 39
10. EXPLODED VIEW ......................................................................................................................... 47
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