WASHING MACHINE SERVICE MANUAL
Contents
1. Listen for a click to determine if the door has locked Check the automatic reverse rotation Check the water heating function 0 Check the water supply amp Fri Check if water is supplied through the detergent dispenser e Check if the drum rotates clockwise and counterclockwise Press the WASH RINSE button and the present temperature will be displayed Press the n Check the drain and spin START PAUSE button functions Power off and the power on Press the SPIN SPEED button Press the START PAUSE button Check the spin and drain functions Listen for a click to determine f SERVICE is needed during if the door is unlocking check remove the remaining water by pulling out the hose cap 10 5 OPERATION 5 1 CONTROL PANEL FEATURES E WM2701H COTTON NORMAL HEAVY DUTY PERM PRESS 53 TOWELS PROCESSING EST TIME REMAINING CHILD LOCK Os SPIN Q EXTRA HOT COLD EXTRA HIGH O HEAVY O HOT COLD O HIGH O Y EXTRA RINSE WARM WARM MEDIUM Q NORMAL CLEAN WARM COLD 7 WASH RINSE COLD COLD SPIN LIGHT OPTIMIZER WATER PLUS WASH RINSE SPIN SPEED SOIL LEVEL BEEPER OPTION Press amp Hold 3sec for Extra Functions 11 Power Button Status Indicator e t2. 79 4 If measuring voltage from the Main PCB Assembly to the Hall Sensor use the following steps Unplug power cord Remove rear washer panel Locate Hall sensor connector on the stator behind the rotor Place meter leads on terminals 5 to 4 white to gray Plug in power cord close door and press power button DO NOT PRESS STAHT 6 You should measure 10 to 15 Vdc If 10 to 15 Vdc is present control board white wire and gray wire are OK If not follow testing output voltages on control board in next section 41 7 To measure output signal voltage from the hall sensor carefully move test leads to terminals 1 to 4 blue and gray Slowly rotate motor rotor by hand You should read a pulsing 10 Vdc If 10 Vdc is measured from 1 to 4 move lead on blue wire to red wire terminal 2 Repeat rotating motor rotor by hand You should read a pulsing 10 Vdc from red to gray If pulsing 10 Vdc is measured from 1 to 4 and 2 to 4 hall sensor is OK If either test netted only 9 to 10 Vdc without changing no pulsing the hall sensor is likely defective Disconnect power by unplugging washer and ohm check hall sensor to verify failure of the hall sensor Test Point and Result Hall Sensor 1 3 c RR Unplug power cord Remove rear panel Remove Washer Top Remove Main PCB Assembly cover as shown in Figure below Locate the white Hall Sensor 4 wire connector using wirin
3. LG Website http biz lgservice com WASHING MACHINE SERVICE MANUAL A CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT MODEL WM2701H JAN 2009 PRINTED IN KOREA P No MFL305991 32 CONTENTS ee IG AIO INS sce 3 2 5 amp ates 4 PARTSAIDENTIFIGATIOB 7 A INSTALLATION AND TEST aee nonton tna 8 fS 11 CONTROL PANEL FEATURES 11 5 270 YOLE GUIDE 14 5 9 OPECIAL RUNG TIONS 16 S4 EXPLANATION OF 5 17 PROGRAM Ier 19 le TEST MODE 20 SAFET CAUTION 20 Z2 LOAD TEST MODE 20 7 3 HOW TO CHECK THE WATER LEVEL FREQUENCY 20 05 TROUBLES eSI CMM UE 21 GIN Mum 21 8 2 ERROR MODE SUMMARY 21 9 9 TROUBLESHOOTING SUMMARY 23 8 4 TROUBLESHOOTING WITH ERROR EE Dor ia 24 9 5 TROUBLESHOOTING BE SE 31 9 COMPONENT TESTING INFORMATION 37 9 1 FILTER ASSEMBLY EINE FILTER 37 9 2 DOOR LOOK SWITCH 38 So 8 VIBE 40 9 4 PUMP MOTOR ASSEMBLY tendu Lab e pue seta
4. Method 1 Press the Power button while the SPIN SPEED button and SOIL LEVEL button is pressed simultaneously Press Start Pause button 1 time Pump slow speed running 2 times Pump mid speed running 3 times Pump high speed running 4 times Stop the Motor Pump Note Environmental check list 1 The drainage hose must not stay in a lower position 2 The drainage hose must not be bent or clogged in any way due to the surrounding physical configuration 3 The drainage hose must not get frozen at all times 4 The drainage pump must not have any improper substance or material inside that may cause a machine breakdown HEATING ERROR Is displayed Yes Reconnect or repair the connector Is the connector connected to heater disconnected or disassembled Yes Wash heater Replace the HEATER ASSEMBLY Is Check heater resistance out of range 12 18 Q Refer to 9 6 Heater assembly Yes 26 Reconnect or repair the connector Is the connector connected to thermistor disconnected or disassembled Yes Replace the THERMISTOR ASSEMBLY Is thermistor resistance out of range about 39 5 kQ at 30 C Refer to 9 7 thermistor assembly Replace the THERMISTOR ASSEMBLY Check the trans of water infiltration into thermistor terminal Does the water infiltrate thermistor terminal Note Chances that the cause occu
5. a level and check that the washer 15 Stable No Remove the transit bolts and Base packing Move the washer or reinforce the floor Put an unbalance part rubber inside of drum and start QC test mode and run in high spin Refer to section 7 2 When the machine is spinning in high speed verify that it is stable SD Unbalance Part If you do not have the unbalance part put 4 5 to 6 5 Ibs 2 to kg of clothing Once loaded press power Rinse Spin and the start pause button in sequence When the machine is spinning in high speed verify that it is stable Yes If it stable adjust feet accordingly After the washer is level tighten the lock nuts up against of the base of the washer All lock nuts must be tightened Check the vibration Sensor Tighten Adjustable feet Lower Tighten 1 d Adjustable feet VIBRATION SENSOR CHECK Is each terminal open Replace the Check the all terminal of vibration the vibration sensor s Sensor connector rer When you check the sensor Check the error during LQC mode leveling of Is it displayed bs2 washer Refer to 7 2 transit bolts and base packing Is the connector connected Reconnect or to vibration sensor repair the connected or assembled connector Is the connector connected Heconnect or to MAIN PWB assembly repair the connected or assembled connector BL2 Is Elect
6. from the NOISE FILTER 2 Unscrew a screw from the TOP BRACKET 52 CABINET COVER Unscrew the 5 screws from upper of the canbinet cover 2 Unscrew the screw from filter cover 3 Put a flat screwdriver or putty knife into the hinge slots at the bottom of the cover and pry it out 4 Unscrew the screw from the lower side of the cabinet cover 53 5 Open the door 6 Disassemble the clamp assembly 7 Tilt the cabinet cover Disconnect the door switch connector NOTE When assembling the CABINET COVER connect the door switch connector 9 Lift and separate the cabinet cover Disassemble the clamp assembly D Disassemble the gasket 54 DOOR Open the door 2 Unscrew the 7 screws from the HINGE COVER Put a flat screwdriver into the openng of the hinge and pull out the hinge cover 4 Unscrew a screw from the lower side of door 5 Disassemble the door upward Be careful The door is heavy 1 Open the door and disassemble the CLAMP ASSEMBLY 2 Unscrew the 2 screws NOTE Reconnect the connector after replacing the DOOR SWITCH ASSEMBLY 55 1 Disassemble the cabinet cover a 2 Separate the pump hose the bellows and the circulation hose assembly from the pump PUMP HOSE assembly 3 Disassemble the pump assembly in arrow direction 1 Disassemble the cabinet cover 2 Sep
7. 3 x If is displayed the drain pump will operate to drain the water automatically OVER FLOW ERROR PRESSURE SENEOR The SENSOR SWITCH ASSEMBLY is out of order ERROR Door not all the way closed DOOR OPEN e Loose electrical connections at Door switch and PWB ERROR Assembly e The DOOR SWITCH ASSEMBLY is out of order HEATING ERROR e The THERMISTOR is out order 21 The connector 3 pin male white in the MOTOR HARNESS is not connected to the connector 3 pin female white of STATOR ASSEMBLY The electric contact between the connectors LOCKED 3 pin male white in the MOTOR HARNESS MOTOR and 4 pin female white connector in the MAIN PWB ERROR ASSEMBLY is bad or unstable The MOTOR HARNESS between the STATOR ASSEMBLY and MAIN PWB ASSEMBLY is cut open circuited e The hall sensor is out of order defective EEPROM is out of order Displayed only when the START PAUSE button is first pressed in the QC Test Mode EEPROM ERROR 10 Dn The washer experienced a power failure FAILURE 22 eBeyoA 01 Auuu SL 0L IAYO 1340 TAOL 1 SZ ZZ1V 106 09 102 81 17 1 8 241 10081 00 102 01 duund 21 8 S UIOd 1591 sweueg IO HM TO GH L HM 1109
8. 4 1 kHz 20 The digits indicate the water level frequency x 1 kHz 8 TROUBLESHOOTING 8 1 SAFETY CAUTION There s built in AC 120V and DC power in output terminal of PWB assembly in common Be careful electric shock when disconnecting parts while trouble shooting Wear Electro Static Discharge gloves when working After cutting off the power when changing PWB assembly disconnect or assemble Be careful static when handling PWB assembly and use Electro Static Discharge plastic pack when delivering or keeping it 8 2 ERROR MODE SUMMERY f you press the START PAUSE button when an error is displayed any error except PE will disappear and the machine will go into the pause status n case of PE TEE dE if the error is not resolved within 20 sec or the in case of other errors if the error is not resolved within 4 min power will be turned off automatically and the error code will blink But in the case of F power will not be turned off ERROR SYMPTOM CAUSE Correct water level 246 is not reached within 8 minutes after water is supplied or it does not reach the preset water level within 25 minutes WATER INLET ERROR The load is too small IMBALANCE The appliance is tilted ERROR Laundry is gathered to one side Non distributable things are put into the drum Not fully drained within 10 minutes Water is overflowing water level frequency is over 21
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10. TRA or musty smell The TUB CLEAN cycle is specially designed to remove this buildup Press and hold the EXTRA RINSE button for seconds to activate this cycle The display will show a message to add liquid bleach to the dispenser After the cycle has ended open the door and allow the drum interior to dry completely NOTE Do NOT use this cycle with clothes and do NOT add detergent or fabric softener 16 5 4 EXPLANATION OF EACH PROCESS Electrical power is supplied e Washer is ready to work and the micom is in the active mode e After loading laundry and selecting a course and a cycle water is supplied and drum rotates e When a user selects Pre wash course water is supplied through pre wash valve Soaking To get laundry wet drum rotates clockwise and counterclockwise amp washing e If water amount is insufficient at this time the Inlet valve will supply laundry water again Heating amp The heater heats the water in drum to the selected water temperature washing and drum rotates for washing Washing When the water temperature reaches to the selected temperature the amp heating heating stops and only the drum rotates washing e If water temperature becomes lower than selected because of re supplied water the heating starts again 7 Washing e Fuzzy Logic decides washing time according to the laundry load water temperature and other factors Drainage e A pump motor drains the water fr
11. ances 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 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 the best selected washing rinsing time washing temperature performance spin rhythm time 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 a power failure has occurred while in operation the door will unlock after 5 minutes Clicking sounds can be
12. arate 2 connectors from the heater 3 Loosen the nut and pull out the heater CAUTION When assembling the heater insert the heater into the heater clip on the bottom of the tub e Tighten the fastening nut so the heater is secure 1 Disassemble the cabinet cover 2 Unplug the white connector from the thermistor 8 Pull it out by holding the bracket of the thermistor 56 WHEN FOREIGN OBJECT IS STUCK BETWEEN DRUM AND TUB 1 Disassemble the cabinet cover 2 Separate the heater from the tub 8 Remove any foreign objects wire coin etc by inserting a long bar in the opening 57 MOTOR DAMPER HINGE DAMPER 58 Disassemble the back cover 2 Remove the bolt 3 Pull out the Rotor 0 Unscrew the 2 screws from the tub bracket 2 Remove the 6 bolts on the stator 3 Unplug the 2 connectors from the stator Disassemble the damper hinges from the tub and base NOTE If you pull the dampers apart the must be replaced If you do not separate them they can be re used 11 EXPLODED VIEW 11 1 CABINET amp CONTROL PANEL ASSEMBLY 11 2 DRUM amp TUB ASSEMBLY KD 23 A 2 2 2 l f 1 X d d D Y 1 A 9 520 T M 00 11 3 DISPENSER ASSEMBLY
13. bient temperature 60 sec Drain 7 TEST MODE 7 1 SAFETY CAUTION There s built in AC 110V and DC power in output terminal of PWB assembly in common Be careful electric shock when disconnecting parts while trouble shooting Wear Electro Static Discharge gloves when working WE After cutting off the power when changing PWB assembly disconnect or assemble careful static when handling PWB assembly and use Electro Static Discharge plastic pack when delivering or keeping it 7 2 LOAD TEST MODE The washer must be empty and the controls must be in the off state 1 Press the SPIN SPEED and SOIL LEVEL buttons simultaneously 2 Press the Power o button while the above condition Then buzzer will sound twice 3 Press the Start Pause button repeatedly to cycle through the test modes Number of times the Check Point i Start Pause button is pressed CheckPoint date Turns on all lamps and locks the door LOAD TEST MODE 3 times High speed Spin rom 110 117 x It will be take about 2minits to be high speed spin Inlet valve for main wash turns on 11 times Vibration sensor check None error bsO Main vibration error bs1 Display vibration error bs2 Both error bs3 Wwe fo S 7 3 HOW TO CHECK THE WATER LEVEL FREQUENCY Press the WASH RINSE and DELAY WASH button simultaneously So for example a display indicating 241 a Water level frequency of 241 x 1 kHz 2
14. e spin speed press the Spin Speed button repeatedly to cycle through available options e To change the soil level press the Soil Level button repeatedly until the desired setting is on Press repeatedly to adjust the volume of the Beeper 13 5 2 CYCLE GUIDE The cycle guide below shows the options and recommended fabric types for each cycle Fabric type Vete spin Speed Spin Speed Spin Speed 501 Level Extra HoUCold High High Normal Extra High No Spin WASH Rinse Optimizer Rinse Spin Heavy Light Low Heavily soiled Sanitary underwear work clothes diapers etc Ww m Hot Cold High Normal 4 Cold Cold Extra High Heavy ic t White Fabrics Warm Cold No Spin Light ME Warm Warm Low E Small oad ot cotton Cold Cold High Normal linen towels shirts Extra High Light sheets jeans mixed E Spin loads one Medium Warm Cold Normal Large items such as Warm Cold Low Normal Bulky 66 and Warm Warm Medium Heavy Large comforters Hot Cold No Spin Light Cold Cold Dress shirts pants Warm Cold Normal Perm wrinkle free clothing Warm Warm Press poly cotton blend Hot Cold clothing table cloths Cold Cold towels Warm Warm Extra High Heavy shirts sheets jeans NoSpin Light mixed loads Cold Cold Low Medium Warm Cold Extra High Heavy Heavy soiled Cotton Warm Warm Light Duty Fabrics Mid Normal T
15. el the washer Check with the troubleshooting guide 4 Plan your service method by referring to the disassembly instructions 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 BOLTS ON A FLAT AND FIRM SURFACE LEVELING Remove the 4 shipping bolts with the supplied wrench Do first lower side to remove easily Turn the leveling feet to adjust the appliance Keep the shipping bolts and spanner for future use Insert the 4 caps provided into the hole e Turn clockwise to raise counterclockwise to lower HOW TO CONNECT THE INLET HOSE Verify that the rubber washer is inside of the valve connector Tighten the inlet hose securely to prevent leaks CONNECT THE DRAIN HOSE AD SJ tm Make sure that the hose is not twisted Avoid submerging the end of the hose The end of the drain hose should be placed less than 96 from the floor CONNECT POWER PLUG Avoid connecting several electric devices as doing so may cause a fire Connect the power plug to the wall outlet 7 TEST OPERATION Preparation for 2 Press the POWER button washing 3 Press the Start Pause button Connect the power plug to the outlet e Connect the inlet hose
16. emove the foreign material 8 5 TROUBLE SHOOTING ELSE A CAUTION 1 Be careful of electric shock if disconnecting parts while troubleshooting 2 First of all check the connection of each electrical terminal with the wiring diagram 3 If you replace the MAIN PWB ASSEMBLY reinsert the connectors correctly NO POWER Is the supplied voltage Check the 120V AC 10 15 fuse or reset the circuit breaker Is LED on while the power Replace the is on MAIN PWB ASSEMBLY Main LED Is three pin wire of Replace the display PWB broken DISPLAY PWB ASSEMBLY Is the current rating of Alternate with multi outlet power strip explanation enough Avoid connecting several electric devices Vi Is the connector connected Reconnect to PCB Noise filter or repair disconnected or the connector disassembled Connecting connector MAIN PWB Display PWB 37 BUTTON DOESN T WORK Reconnect or Repair the connector Is the connector connected to Main PWB Display PWB disconnected or disassembled Is the button of panel stuck Repair the button 32 Is the display PCB broken Replace the check the buzzer sound Yes DISPLAY and LED light while push PWB the button ASSEMBLY VIBRATION amp NOISE IN SPIN Have all the transit bolts and base packing been removed Base Packing Is the washer installed ona solidly constructed floor Check the leveling of the washer with
17. erates Generated steam is sprayed by nozzle If the water in the steam generator is reduced by spraying steam water level sensor decide to supply water or not 3 Operation method of Steam generator The Steam Generator Assembly is supplied as an assembly only parts like the water level sensor thermistor or heater cannot be replaced individually Diagnosis is limited to determining malfunction and replacing as an assembly The steam generator does not have to be removed from the machine to be drained Be sure to let the water cool to avoid a burn Have a hose available to slip onto the connector or a large towel to catch the water so it doesn t run down into the machine cabinet If you remove the steam generator before draining it be sure to avoid tipping it and spilling the water 2 Water level sensor 1 Structure of water level sensor Maximum water level Minimum water level common 2 Function of Water level sensor It is the part of sensing water level It decides to supply water or not when the steam generate to protect heater 48 9 8 VIBRATION SENSOR ASSEMBLY Wiring diagram DU RH VIBRATION SENSOR The vibration sensor is designed to decrease the vibration of the washing machine It is attached to the tub cover of washing machine It estimates the vibration of washing machine s tub during drying And it reduces the vibration and the noise of washing machine Vibration Sensor 3 1 O
18. g diagram wire colors as your guide Plug in power cord close door and press power button DO NOT PRESS START 7 Place meter leads on White amp Gray wires You should read 10 to 15 Vdc output from the Main PCB Assembly to the Hall sensor If no 10 to 15 Vdc is measured the control board is defective Place meters leads on Blue to Gray Turn motor rotor slowly by hand You should measure a pulsing 10 Vdc Place meter leads on Red to Gray Turn motor rotor slowly by hand You should measure a pulsing 10 Vdc If both tests measure a pulsing 10 Vdc hall sensor and harness OK If either or both tests measures 9 to 10 volts but does not pulse or change Hall sensor has failed and must be replaced IF zero 0 voltage is measured on either test check red amp blue wires for continuity Repair or replace harness as needed 42 9 4 PUMP MOTOR ASSEMBLY Wiring Circuit in the MAIN PWB Wiring Diagram diagram DRAIN CIRCULATION PUMP PUMP Drain Pump Circulation Pump Test Points Test Points 1 to 2 10 20 Q 1 to 2 18 30 9 5 INLET VALVE ASSEMBLY Wiring diagram PCB Inlet valve driving circuit CONNECTOR Wiring Diagram MIAN PWB 234044 32183 1234 BL4 2 3 4 3 21 1234 BL RD BL INLET VALVE Each circuits of loads in wiring diagram are all same Depending on the cycle and water temperature the controller will energize the hot or cold water valve solenoids to meet the selected water tempera
19. heard when the door is locked unlocked 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 15 set CHILD LOCK lights and all buttons are disabled except the Power button You can lock the controls of the washer while washing o PARTS IDENTIFICATION Shipping Bolts Power Plug f the supply cord is damaged it must be replaced by the manufacturer or its authorized service technician in order to avoid a hazard ou o EE 0 4 Control Panel Drain Hose Dispenser Back of Washer Drum Door Door Seal Cold Water Inlet Lower Cover Cap m Adjustable Feet Drain Plug Drain Pump Filter B ACCESSORIES Tie strap Option to secure drain hose to standpipe inlet hose or laundry tub Hot Cold 1 each Wrench Hose N Non skid pads Caps 4 Elbow Bracket for covering shipping for securing drain hose bolt holes 4 INSTALLATION amp TEST 1 Before servicing ask the customer what the trouble is Check the setup power supply is 120V remove the transit bolts lev
20. is not supplied to motor the drum drainage rotates by remaining spin power rinse hold is selected the drainage is not proceeded after rinse finishes Disentangling e After spin finishes disentangling starts to remove unbalanced laundry End e After end signal is displayed it stays for 8 seconds and power is automatically turned off Auto type door switch e After door switch is off end signal is displayed in the case of manual type and it takes around 2 minute to turn off door switch 18 6 PROGRAM CHART Disentangle D T g EE P 5 C E 0 S C X c ud E 5 qp Ww 0 Ole gt 0 gt Q Pe Z K L SEV E ree Pol PROGRAM CHART Se AN VS zio AHH 1 du nna 19 E 3 E 2g l ToT Dii TIL Te T0 n 1 VEEEEEEDE YN 000101 iE T 2 HAE EB ER E 58 Hnt IEEE V i BOE T MIS water temperature and am
21. lsius and must not have more amount of supplied water Does the spring of Latch Replace than it should Hook actuate Door Assembly Yes 28 UNBALANCE ERROR Is displayed OVER FLOW ERROR Is displayed Yes Yes When you press both Check the AIR WASH RINSE button and CHAMBER DELAY WASH button and the tube simultaneously is the clogged water level frequency over 21 3kHz Refer to 7 3 Put laundry evenly In the DRUM assembly Does the laundry lean toward one side notevenly Yes put in the DRUM assembly Adjust the height of washing machine to be kept Is the washing machine installed at an angle horizontally If the inlet Does the inlet valve work valve work when the power is not continuously applied when the power Note Environmental check list 1 Removal of transportation based fixed bolt 2 Confirmation on the material to see if it is capable of handling two different types of blanket materials is applied Replace the Replace the MAIN PWB INLET VALVE ASSEMBLY ASSEMBLY PRESSURE SENSOR ERROR Is displayed Is the connector connected to pressure sensor disconnected or disassembled Is the resistance of the pressure sensor out of range pin 1 pin 3 Is the AIR CHAMBER and the tube clogged Replace the MAIN PWB assembly Reconnect or repair the connector Replace the pressure switch Fix the air chamber and r
22. o E alo Sta T ELI FAMAE Lie e Pi 16 the Liicl sl Holbla ldan G 01 1910 110998 a A 8 9I dwe YSeM 9 1019101196 4019164119641 016194957 1 y 10U guid uoeo q 9Jd Zuid SYN guid UId JOU Old Old Luid 1001 8 4 TROUBLESHOOTING WITH ERROR INLET VALVE ERROR Is displayed Yes When you press both WASH RINSE button and DELAY WASH button simultaneously is the water level frequency below 24 6 kHz Is filter inlet valve clogged with foreign material Is the connector connected to inlet valve assembly disconnected or disassembled Is resistance between each terminal of INLET VALVE ASSEMBLY 0 8 1 2 kc2 Refer to 9 5 inlet valve assembly Yes Yes Check the AIR CHAMBER and the tube clogged Clean or replace the filter Reconnect or repair the connector Replace the INLET VALVE ASSEMBLY 24 Replace the INLET VALVE Is the voltage of the inlet valve connector 120 V AC Check the all terminal of INLET VALVE ASSEMBLY while the power is on Yes ASSEMBLY Is the connector connected to Reconnect or MAIN PWB assembly disconnected o
23. om the drum e After sensing drained water amount by water level frequency spin starts e When a heating course is selected stay cooling process is performed to decrease the water temperature gradually to prevent laundry from being damaged and for safety reasons Untangling e It balances laundry load and senses the eccentricity of the load to only Sensing allow spinning without vibration eccent f the eccentricity is worse than the allowed level it repeats the ricity disentangling process When the repeated time is more than allowed level it displays UE f the eccentricity is good the intermittent spin starts e During this process the drain pump works for drainage intermittently 17 2 55 Explanation Intermittent e To reach the correct set speed the motor rotates clockwise and spin counterclockwise directions after spin process starts f the water level frequency is lower than 23 0 kHz a washer senses suds and starts suds removal process In this process the remaining water during washing process 15 extracted and the selected speed is kept e Removing suds process is in active mode at this cycle Remaining e After spin finishes the drum rotates by remaining spin power until it stops spin Motor power is off e This process is overlapped with next process Rinse water Water supply for rinse process supply Rinse e Rinsing process Last e After spin finishes and power
24. owels Towels and cotton 1 igh ed No Spin Low Small Cotton linen towels warmWarm Extra High Heavy Load 3115 sheets Jeans Hot Cold No Spin Light mixed loads Cold Cold Low Medium 14 Cotton Normal og 5 Wash Rinse Rinse WASH Rinse Cold Cold Medium Normal nm nylons sheer or lacy Warm Cold No Spin Heavy garments Warm Warm Low Light Delicates a ee Warm Cold Medium Light iui Warm Warm No Spin Hot Cold Extra Extra High Light Lightly soiled clothing ee its and small loads Warm Warm y NOTE To protect your garments not every wash rinse temperature spin speed soil level or option is available with every cycle 15 5 3 SPECIAL FUNCTIONS The option buttons also activate special functions including CHILD LOCK DRUM LIGHT TUB CLEAN Press and hold the option button marked with the special function for 3 seconds to activate CHILD LOCK Use this option to prevent unwanted use of the washer or to keep cycle settings from being changed while the washer is operating Press and hold the PREWASH button for 3 seconds to activate or deactivate CHILD LOCK CHILD LOCK will be shown in the display and all controls are disabled except the ON OFF button The washer can be locked during a cycle PRE WASH TUB CLEAN A buildup of detergent residue can occur in the wash tub over time and can lead to a mildew EX
25. p clogged YES Container a Eee Is the motor bolt loosened Secure the bolt Check hall sensor Is there friction noise coming from the motor Replace If defective Then check stator Replace if necessary Check rotor for broken magnets Replace rotor if necessary 36 9 COMPONENT TESTING INFORMATION When Resistance Ohm checking the Component be sure to turn the power off and do voltage discharge sufficiently 9 1 FILTER ASSEMBLY LINE FILTER Wiring Circuit in the MAIN PWB Wiring Diagram diagram Test points and Result Test Points WH 1 to RD 3 WH 3 to RD 1 9 2 DOOR LOCK SWITCH ASSEMBLY Wiring Circuit in the MAIN PWB Wiring Diagram diagram Function The Door Lock Switch Assembly consists of a Heating PTC a Bimetal a Protection PTC and a Solenoid It locks the door during a wash cycle 1 Operation for door closing After the system turns on PTC heating starts up through terminal 2 4 s authorizing the power on After PTC heating starts up and before solenoid operation is driven force the system to the off position through CAM Door close Authorizing one impulse through terminal 3 4 PTC amp solenoid will make the door locked Door lock is detected when switches in terminal 4 5 are set closed CAM rotation will forcibly clear off the connection The maximum allowable number of impulse autho
26. r dis assembled NA2 NA4 BL3 Yes repair the connector Is Electrical connection correct Refer to 9 5 wiring diagram Replace the MAIN HARNESS Check the PRESSURE After checking connector is the water level frequency Yes below 24 6 kHz SWITCH Replace the MAIN PWB ASSEMBLY Note Environmental safety check list 1 No water tap leakage 2 3 4 5 No water tap freeze No entanglement of water supply hose No water shortage No shrinkage on water supply hose due to a possible misuse of hot and cold water 6 No water supply hose leakage i a aaa DRAIN ERROR Is displayed Yes Reconnect or repair the connector Is the connector connected to pump motor assembly disconnected or disassembled Yes Connection connector Check the AIR CHAMBER the tube clogged and press switch When you press both WASH RINSE button and DELAY WASH button simultaneously is the water level frequency below 25 0 kHz 25 Is the coil of the drain pump too high or low resistance of the coil is 10 200 Refer to 9 4 Pump motor assembly Replace the DRAIN PUMP ASSEMBLY Replace the Is the voltage between connectors out of range NA2 pini BLS 0101 After remove Terminal Position Assurance TPA of connector check as follows MAIN PWB ASSEMBLY Pump running 120V 45 Stopped Motor Pump 0 1V
27. rical connection Replace the correct TRANS Refer to 9 10wiring diagram CABLE Replace the MAIN PWB ASSEMBLY Note Chances that the cause occurs from the main controller are very little Sensing part of the circuit consists of only resistors and capacitors DETERGENT DOES NOT FLOW IN Prewash Liquid chlorine Bleach Compartment Liquid fabric Softener Compartment Prewash Compartment Main Wash Compartment Is water supplied Are receptacles correctly connected to the terminals of the INLET VALVE ASSEMBLY Has detergent been put in the correct compartment of the dispenser Is the detergent caked or hardened 35 Refer to NO WATER SUPPLY Check the wiring Put the detergent in the correct place Pre wash Main wash Detergent Clean the dispenser LIQUID DETERGENT SOFTENER BLEACH DOES NOT FLOW IN Refer to NO WATER SUPPLY Check the wiring on the Prewash Is water supplied Are the plugs correctly connected to the terminals of the INLET VALVE ASSEMBLY dispenser Put it in the correct Is liquid detergent softener bleach put in the correct compartment of the drawer RP PH S compartment 1 4 3 1 Liquid chlorine Bleach Compartment 2 Liquid fabric Softener Compartment 3 Prewash Compartment 4 Main Wash Compartment Clean the cap and Is the liquid detergent softener bleach ca
28. riginal 1 to 3 5 0 Vdc Voltage Input 10 DISASSEMBLY INSTRUCTIONS Be sure to unplug the machine before disassembling and repairing the parts CONTROL PANEL ASSEMBLY TOP PLATE ASSEMBLY D Unscrew 2 screws on the back of the top plate Pull the top plate backward and upward as shown 3 Disconnect the Display PWB assembly connector from trans cable 4 Pull out the drawer and unscrew 2 screws 5 Remove one screw Lift the side the control panel assembly and pull it out CONTROL PANEL ASSEMBLY DISPLAY PWB ASSEMBLY 7 Unscrew the 8 screws from the control panel assembly Disassemble the Display PWB Assembly 50 MAIN PWB ASSEMBLY 5 9 O C C LLI O A C 2 Q SWITCH ASSEMBLY 2 Remove the Protective cover 3 Disconnect the connectors 4 Unscrew 1 screw on the back 5 Remove the Main PWB 51 DISPENSER ASSEMBLY 0 Disassemble the top plate assembly 2 Pull out the drawer 3 Push out the DISPENSER ASSEMBLY after unscrewing 2 screws 4 Unscrew the Clamp nut at the lower part of the dispenser 5 Disassemble the 4 connectors from the valves Wire Color D Blue Housing YL BK 2 White Housing BK WH Blue Housing BK GY 4 Red Housing BK Blue 6 Unscrew 2 screws from the back of the cabinet CD Disassemble two or three connectors
29. rizations is 2 Upon the third authorization of the impulse the position of CAM goes back to the door open position Authorizing the impulse occurs in 4 5 seconds upon input for max performance and two authorization processes are allowed at most Normal operation period of PTC heating 1 5 5 seconds Defects from the development process 2 Operation for door opening With a temporary stop door automatically opens by CAM rotations after authorizing the impulse from the terminal 3 4 and the power turns off maximum of 3 times of the authorizing period Upon the fourth authorization of the impulse the position of CAM goes back to the door close position 38 mmy 39 9 3 STATOR ASSEMBLY Wiring Circuit in the MAIN PWB Wiring Diagram diagram I Y 141014 The DD motor can be driven from stopped to maximum speed in infinite steps in either direction There are 36 poles on the stator 12 permanent magnets spaced around the rotor There are no brushes to wear out Unlike a more traditional brushless motor the rotor surrounds the stator rather than being attached to it Test points Windings WINDINGS HALL SENSOR The hall sensor determines the speed and direction of the motor It also can read that the load is off balance when the drum speed fluctuates Test point Voltage Testing Hall Sensor at Stator and Result Hall Sensor t 2 4 1 3 5
30. rs from the main controller are very little Sensing part of the circuit tE consists of only resistors and capacitors LOCKED MOTOR ERROR Is displayed Yes Check the connectors below Is the connector disconnected Yes or disassembled motor hall sensor connector motor drive connector part of main PWB assembly NA1 RD4 Hall sensor part of wire part of motor Reconnect the connector connector wire motor Replace the ROTOR Replace the STATOR Is the resistance values in the range of 5 to 15 Q No U V V W W V Uz1 W 3 After pull out the RD4 connector check the terminal of the connector in wire Red 3P male Replace the Hall sensor Is hall sensor out of order Refer to 9 3 Stator assembly Hall sensor Replace the MAIN PWB ASSEMBLY Check the IPM in the controller 27 DOOR OPEN ERROR Is displayed Is there clicking sound once Replace the or twice when the PCB START PAUSE button is ASSEMBLY Yes pressed to start the cycle Is the connector connected Reconnect or to door switch or main PWB repair disconnected the connector Is DOOR SWITCH Replace the ASSEMBLY broken DOOR SWITCH ASSEMBLY Note Environmental check list 1 The machine must operate with all the doors completely closed and locked 2 The washing area must operate with a water temperature not higher than 45 Ce
31. shows elapsed time of the cycle the washer 15 operating Use this button to turn the power On Off COTTON NORMAL HEAVY DUTY PERM PRESS e TOWELS e HANDWASH WOOL SPEED WASH Cycle Selector Knob Start Pause Rotate the Cycle selector knob to select the cycle designed for Use this button to Start different types of fabric and soil levels Stop the washer 12 Option Button PREWASH Use this option for loads that need pretreatment It adds 16 minutes prewash and a spin cycle RINSE SPIN Use this option to rinse and then spin EXTRA RINSE This option provides an additional rinse WASH RINSE OPTIMIZER Use the WASH RINSE OPTIMIZER button to select the water level and detergent mount automatically by the smart sensor amp program WATER PLUS Add extra water to the wash and rinse cycles for superior results PRE WASH CHILD LOCK Ox SPIN EXTRAHOT COLD EXTRA HIGH HEAVY HIGH HOT COLD O HIGH O 1 EXTRA RINSE WARM WARM MEDIUM NORMAL LOW x TUB CLEAN OWARM COLD OLOW WASH RINSE COLD COLD NO SPIN LIGHT O OFF OPTIMIZER WATER PLUS WASH RINSE SPINSPEED SOILLEVEL BEEPER OPTION Press amp Hold 3sec for Extra Functions Wash Rinse Spin speed Soil Level Beeper Button Select a water temperature based on the type of load you are washing To change th
32. te don 43 SS INEET VALVE ASSEMBEV 44 ula ANTERA SEMBE PT 45 9 7 THERMISTOR er pep ve ap Rebelde 46 9 8 VIBRATION SENSOR ASSEMBLY eese nennen nnne nennen nnne nennen nnns 49 10 DISASSEMBEY INSTRUC THONS RU vue reg Dev epo 50 WISE APEODED 59 11 1 CABINET AND CONTROL PANEL ASSEMBLY 59 11 2 DRUM AND TUB ASSEMBLY tient 60 11 3 DISPENSER ASSEMBLY 61 1 SPECIFICATIONS OPTIONS Prewash Rinse Spin Extra Rinse Water Plus Stain Cycle Wash Rinse Optimizer Tub Clean 27 W X 293 4 D X 3811 16 H 5013 16 D door open WATER LEVEL 10 steps by sensor 2 FEATURES amp TECHNICAL EXPLANATION 2 1 FEATURES B 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 enh
33. ture Test After pull out the connector of defective valve check the resistance points and d Result ta 1 2 El 0 8 1 2 kQ 9 6 HEATER ASSEMBLY Wiring diagram MAIN PWB X71 X135 X134 34 BL 34 314 314 WASH HEATER HEATER Each circuits of loads in wiring diagram are all same 1 The Wash Heater is designed to raise the wash water to the desired temperature selection during certain wash cycles 2 The Steam generator heater is designed to make the water to the steam during steam cycles Test points Steam Generator Heater Wash Heater Steam Generator Heater Test Points Result Test Points 1 to 2 12 18 Q 1 to 2 12 18 Q 45 9 7 THERMISTOR ASSEMBLY Wiring diagram MAIN PWB WH WASH STEAM THERMISTOR GENERATOR THERMISTOR The thermistor temperature sensor is used to monitor water temperature in the tub or Steam Generator Test points Wash Thermistor Steam generator Thermistor 46 Wash Thermistor Test Points Result Remarks tolerance 5 1 to 2 39 5 kQ At 86 F 30 C 26 1 At 104 F 40 C 12 1 At 140 F 60 C 8 5 At 158 F 70 C At 203 F 95 C At 221 F 105 C 47 2 Operation mechanism of Steam generator After supplying some amount of water through inlet valve and water level sensor Heater operates and steam gen
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