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MFL30599132 LG WM2701H Washer Service Manual


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                               Website:http://biz.lgservice.com




WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.




MODEL : WM2701H*
JAN. 2009 PRINTED IN KOREA   P/No.: MFL30599132
                                                    CONTENTS
1. SPECIFICATIONS ............................................................................................................... 3
2. FEATURES & TECHNICAL EXPLANATION ....................................................................... 4
3. PARTS IDENTIFICATION ................................................................................................... 7
4. INSTALLATION AND TEST ................................................................................................ 8
5. OPERATION ...................................................................................................................... 11
   5-1. CONTROL PANEL FEATURES ................................................................................. 11
   5-2. CYCLE GUIDE ........................................................................................................... 14
   5-3. SPECIAL FUNCTIONS .............................................................................................. 16
   5-4. EXPLANATION OF EACH PROCESS ....................................................................... 17
6. PROGRAM CHART .......................................................................................................... 19
7. TEST MODE ..................................................................................................................... 20
   7-1. SAFETY CAUTION .................................................................................................... 20
   7-2. LOAD TEST MODE ................................................................................................... 20
   7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY ............................................. 20
8. TROUBLESHOOTING ...................................................................................................... 21
   8-1. SAFETY CAUTION .................................................................................................... 21
   8-2. ERROR MODE SUMMARY ...................................................................................... 21
   8-3. TROUBLESHOOTING SUMMARY ..........................................................................23
   8-4. TROUBLESHOOTING WITH ERROR ....................................................................... 24
   8-5. TROUBLESHOOTING ELSE ..................................................................................... 31
9. COMPONENT TESTING INFORMATION ........................................................................ 37
   9-1. FILTER ASSEMBLY (LINE FILTER) .......................................................................... 37
   9-2. DOOR LOOK SWITCH ASSEMBLY .......................................................................... 38
   9-3. STATOR ASSEMBLY ................................................................................................. 40
   9-4. PUMP MOTOR ASSEMBLY ...................................................................................... 43
   9-5. INLET VALVE ASSEMBLY ......................................................................................... 44
   9-6. HEATER ASSEMBLY ................................................................................................. 45
   9-7. THERMISTOR ASSEMBLY ....................................................................................... 46
   9-8. VIBRATION SENSOR ASSEMBLY ............................................................................ 49
10. DISASSEMBLY INSTRUCTIONS .................................................................................... 50
11.EXPLODED VIEW ............................................................................................................ 59
   11-1. CABINET AND CONTROL PANEL ASSEMBLY ...................................................... 59
   11-2. DRUM AND TUB ASSEMBLY .................................................................................. 60
   11-3. DISPENSER ASSEMBLY ........................................................................................ 61



                                                                  2
1. SPECIFICATIONS


               IT E M                                       W M2701H*
            COLOR                                W:BLUE WHITE, V:Stainless VCM
        POWER SUPPLY                                      AC 120 V, 60 Hz
       PRODUCT WEIGHT                                      192 lbs (87kg)
                         WASHING                               280 W
ELECTRIC POWER
                        DRAIN MOTOR                             80 W
 CONSUMPTION
                        WASH HEATER                            1000 W
  REVOLUTION               WASH                                46 rpm
    SPEED                  SPIN                              0-1200 rpm
            CYCLES                                               12
  WASH/RINSE TEMPERATURES                                         5
         SPIN SPEEDS                                              5
            OPTIONS                   Prewash, Rinse+Spin, Extra Rinse, Water Plus, Stain Cycle,
                                                  Wash/Rinse Optimizer, Tub Clean
 OPERATIONAL WATER PRESSURE                          14.5-116 psi (100-800 kPa)
        CONTROL TYPE                                          Electronic
     WASH CAPACITY [cu.ft ]                                 3.87 (4.5 IEC)
         DIMENSIONS                   27"(W) X 29 3/4"(D) X 3811/16"(H), 5013/16" (D, door open)
         DELAY WASH                                        up to 19 hours
      DOOR SWITCH TYPE                                     PTC + Solenoid
         Door Frame                                           Chrome
         WATER LEVEL                                    10 steps (by sensor)
    LAUNDRY LOAD SENSING                                    Incorporated
       ERROR DIAGNOSIS                                      Incorporated
       AUTO POWER OFF                                       Incorporated
         CHILD LOCK                                         Incorporated

               DRY                                           Washer Only




                                            3
2. FEATURES & TECHNICAL EXPLANATION
2-1. FEATURES
        Ultra Capacity
        The Larger drum enables not just higher head drop and stronger centrifugal force,
        but also less tangling and wrinkling of the laundry. Heavier loads, such as king size
        comforters, blankets, and curtains, can be washed.

        Direct Drive System
        The advanced Brushless DC motor directly drives the drum without belt and pulley.



        Tilted Drum and Extra Large Door Opening
        Tilted drum and extra large opening make it possible to load and unload clothing
        more easily.



        RollerJets
        Washing ball enhances the wash performance and reduces damage to the clothing.
        The jets spray and help tumble clothes to enhance washing performance while
        maintaining fabric care.


        Automatic Wash Load Detection
        Automatically detects the load and optimizes the washing time.



        Built-in Heater
        Internal heater helps to maintain water temperature at its optimum level for selected
        cycles.


        Child Lock
        The Child lock prevents children from pressing any button to change the settings
        during operation.




                                         4
2-2. NEURO FUZZY WASHING TIME OPTIMIZATION
  To get the best washing performance, optimal time is determined by the water temperature,
  the selected washing temperature, and the size of the load.



                  water
               temperature
                                                                          washing time
                                                                                                 the best
          selected
          washing                               NEURO-                      rinsing time         washing
        temperature                             FUZZY                                            performance
                                                                         spin rhythm, time
                   load
                   size


      SENSING                    PROCESSING                     DETERMINATION                  EFFECT




2-3. WATER LEVEL CONTROL
   This model incorporates a pressure sensor which can sense the water level in the tub.
    The water supply is stopped when the water level reaches the preset level, the washing
    program then proceeds.
   Spinning does not proceed until the water in the tub drains to a certain level.




2-4. DOOR CONTROL
   The door can be opened by pulling the door handle whenever washer is not in operation.
   When the cycle is completed, the DOOR LOCKED light will turn off.
   If a power failure has occurred while in operation, the door will unlock after 5 minutes.
   Clicking sounds can be heard when the door is locked/unlocked.




                                                       5
2-5. THE DOOR CAN NOT BE OPENED
  While program is operating.
  When a power failed and power plug is taken out in operation
  While Door Lock lights turn on.
  White the motor is in the process of intertial rotating, through the operation is paused.


2-6. CHILD LOCK
  Use this option to prevent unwanted use of the washer. Press and hold PRE WASH button for 3
  seconds to lock/unlock control.
  When child lock is set, CHILD LOCK lights and all buttons are disabled except the Power     button.
  You can lock the controls of the washer while washing.




                                                 6
3. PARTS IDENTIFICATION




  ACCESSORIES




                                                      Tie strap (Option)
   Hot/Cold (1 each)        Wrench              to secure drain hose to standpipe,
        Hose                                        inlet hose, or laundry tub




     Non-skid pads            Caps(4)                    Elbow Bracket
                       (for covering shipping       (for securing drain hose)
                             bolt holes)



                                7
4. INSTALLATION & TEST
1 Before servicing, ask the customer what the trouble is.
2 Check the setup (power supply is 120V, remove the transit bolts, level the washer...)
3 Check with the troubleshooting guide.
4 Plan your service method by referring to the disassembly instructions.
5 Service the unit.
6 After servicing, operate the appliance to see whether it functions correctly.
    STANDARD INSTALLATION
    The appliance should be installed as follows:




    REMOVE THE SHIPPING                     INSTALL THE APPLIANCE              ADJUST THE
6
               BOLTS                      ON A FLAT AND FIRM SURFACE             LEVELING




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