Service Manual - ApplianceAssistant.com
Contents
1. A E DAYAN MO DN ONDUAN NN DE An E 4 n NN Eo 021 Qo 7 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 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 9 button while the above condition Then buzzer will sound twice Press the Start Pause C button repeatedly to cycle through the test modes hon Check Poin 19 7 3 HOW READ THE DISPLAY IN LOAD TEST RPM Water level frequency Steam temperature Fan Motor RPM Wash temperature Duct temperature 7 4 HOW TO CHECK THE WATER LEVEL FREQUENCY Press the WASH RINSE and SOIL LEVEL button simultaneously The digits indicate the water level frequency For example if the display indicate 058 the water level frequency is 20 58 X 0 1 25 8 kHz 20 8 TROUBLESHOOTING 8 1 SAFETY CAUTION There s built in AC2. JO SIWOU L M uld A ZUld 7 puid AL 0 peddois JOH Nld YN GY S guid 9 AOS Buiuuni Old VN 105495 1010 N FA guid lt 100 23 8 4 TROUBLESHOOTING WITH ERROR INLET VALVE ERROR Is displayed Yes When you press both WASH RINSE button and SOIL LEVEL button simultaneously is the water level frequency below 24 6 kHz Refer to 7 4 sas ASSET ALAO LAIF 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 Refer to 9 5 inlet valve assembly 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 15 the connector connected to Reconnect or MAIN PWB assembly disconnected or dis assembled NA4 BL3 WH Yes repair the connector Is Electrical connection correct
3. L G Website http biz lgservice com WASHING MACHINE SERVICE MANUAL A CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT MODEL WM3988H A AUG 2007 PRINTED IN KOREA P No MFL30599110 5 rl oh 0 Per 3 2 FEATURES amp TECHNICAL EXPLANATION iiie ive eee ones 4 PARTS IDENTIFICATION 7 4 INSTALLATION AND T EST eva C m ea eo aant o or tata 8 POPE RATION e cc TT 11 PANEL 5 mtsent o utente duni aue seni 11 527G YOLE GUIDE CC 14 9 3 5PBECIAL FUNG TONS E E 15 6 WIRING DIAGRAM PROGRAM CHART 17 7 NIU 19 IM rc 19 7 2 LORD TEST MODE 22 8 2 9 30 022 19 7 3 HOW TO READ THE DISPLAY IN LOAD TEST MODE 20 7 4 HOW TO CHECK THE WATER LEVEL FREQUENCY 20 S TRHOUBEESHOOTINQ iced es abu 21 SAFETY CAUTION Mm 21 92 ERROR MODE SUMMARY aa E aAA 21 3 3 TROUBLESHOOTING SUMMARY 255 bri toto o e Ea t cotes 23 8 4 TROUBLESHOOTING WITH ERROR ooo reor eaae tetra e veste eene nes
4. Remove the housing attached to the TSG Heater Water level frequency sensor Thermistor 2 Remove the screw of the TSG and Body Frame 67 3 Taking out the screws of Frame 2 4 Separate the hoses from the TSG 5 Remove the body frame and then separate the TSG from the washer 62 11 EXPLODED VIEW 11 1 CABINET amp CONTROL PANEL ASSEMBLY 11 2 8 TUB ASSEMBLY gt lt 7 sy 2 B 7 s A SW 6 N bed pou lr a ye 4 7 NON A 2 SN 2 I WX ect 4 1 e ee ee M 64 11 3 DISPENSER ASSEMBLY 65 11 4 DRYER 66
5. cabinet can you find any material foreign material in condensing duct and condensing bellows 15 the connector connected Reconnect or to Thermostat disconnected Yes repair the or disassembled connector Condensing bellows Remove the foreign material after disassemble the DRY FAN ASSEMBLY and DRY duct upper Is the voltage of the Tab Replace the relay white connector on Yes PWB PWB Assembly Main 0 V assembly 32 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 10 15 fuse or reset the circuit breaker Is LED on while the power Replace the is on MAIN PWB ASSEMBLY Is three pin wire of Replace the display PWB broken DISPLAY 1 i PWB ASSEMBLY Is the current rating of Alternate with multi outlet power strip explanation enough Avoid connecting several electric devices 17 Is the connector connected Reconnect to PCB Noise filter or repair disconnected or the connector disassembled Connecting connector MAIN PWB Display PWB 33 BUTTON DOESN T WORK Reconnect or Repair the connector Is the connector connected to Main PWB Display PWB disconnected or disassemble
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7. 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 B 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 If 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 In case of if the error is resolved within 20 seconds the case of other errors if the error is not resolved within 4 minutes power will be turned off automatically and the error code will blink But in the case of 4 power will not be turned off ERROR SYMPTOM CAUSE WATER INLET Correct water level 24 6kHz is not reached within ERROR 8 minutes after water is supplied or it does not reach the preset water level within 25 minutes UNBALANCE The load is too small ERROR The appliance is tilted Laundry is gathered to one side Non distributable things are put into the drum DRAIN ERROR Not fully drained within 10 minutes OVERFLOW ERROR Water is overflowing water level frequency is over 21 3kHz x If is displayed the drain pump will operate to drain the water automatically PRESSURE SENSOR The PRESSURE SENSOR ASSEMBLY
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9. Do NOT use this cycle with clothes and do NOT add detergent or fabric softener SPIN SENSE To activate SPINSENSE While the washing machine is runnung in any cycle press and hold the STAIN CYCLE button for 3 seconds The STAIN CYCLE button light will remain lit while the washer is running to show that SPINSENSE is active The SPINSENSE function will remain active for every cycle even after a power failure To cancel SPINSENSE Press and hold the STAIN CYCLE button for 3 seconds to turn off the SPINSENSE function 15 LANGUAGE This option allows you to change the language shown in the display Once set the selected language will stay set even after the power is turned off The display language options are AM English French and Spanish English is the default language To change the language Press the ON OFF button to turn on the washer Press and hold the WATER PLUS button for 3 seconds until the following screen appears in the display SELECT A LANGUAGE ESPANOL FRANCAIS ENGLISH Press the WATER PLUS button repeatedly to cycle through FRAN AIS French ESPANOL Spanish and then back to English ALLERGIENE e The ALLERGINE cycle is a powerful high temperature cycle designed specifically to reduce allergens Selecting the ALLERGIENE cycle automatically incorporates steam into the wash cycle e The ALLERGIENE cycle is most effective for washing clothes such as unde
10. On Off operating STEAM CYCLE COTTON NORMAL BULKY LARGE PERM PRESS U M ALLERGIENE Cycle Selector Knob Start Pause e Use this button to Start Stop the washer Rotate the Cycle selector knob to select the cycle designed for different types of fabric and soil levels 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 STAIN CYCLE Adds time to the wash and rinse cycles for better stain removal Automatically provides a rinse WATER PLUS Add extra water to the wash and rinse cycles for superior results PRE WASH CHILD LOCK DOOR LOCK CHILD LOCK DELAY WASH EST TIME i REMANING 01 21 C SPIN N DRUM LIGHT EXTRA EXTRA HEAVY HIGH C Aus HOT COLD HIGH x TUB CLEAN ee C STAIN CYCLE STEAM SPINSENSE WATER PLUS LANGUAGE WASH RINSE OPTION PRESS amp HOLD 3SEC FOR EXTRA FUNCTIONS Wash Rinse Spin speed Soil Level Dry Beeper Button Select a water temperature based on the type of load you are washing To change the spin speed press the Spin Speed button repeatedly to cycle through available options To change the s
11. switch Fix the air chamber and remove the foreign material DRY HEATING ERROR Is displayed 15 the resistance values in Replace the the range of 2 to 5 Q FAN Motor pint pin3 pin2 pin3 Assembly After pull out the YL1 connector check the terminal of the connector in wire Yellow 3P male Reconnect or 15 the connector connected to thermistor disconnected Yes repair the or disassembled connector Is the voltage of the Fan motor Replace the connector 20 30 V DC MAIN PWB Check the all terminal of assembly FAN MOTOR Assembly while the machine is dry course In case of measuring by multimeter multitester 0 20V Is thermistor resistance out Replace the of range THERMISTOR about 39 5 kQ at 30 C ASSEMBLY Refer to 9 7 thermistor assembly Check the trans of water Replace the infiltration into thermistor THERMISTOR terminal ASSEMBLY Does the water infiltrate thermistor terminal Is the connector connected to Reconnect or FAN MOTOR disconnected Y S 2 repair the disassembled connector 15 the connector connected Reconnect or to heater disconnected or Yes repair the disassembled connector x Continued next page 37 Is Check heater resistance Replace the out of range while the power YeS Heater is off assembly 10 40 Refer 9 6 Heater assembly After you separated Remove the condensing bellows from Yes foreign
12. 24 8 5 TROUBLESHOOTING ELSE 33 9 COMPONENT TESTING INFORMATION 38 931 FILTER ASSEMBLY LINE 23 noo e ni 38 9 2 DOOR LOOK SWIIGHASSEMBDLY 2 39 9 3 STATOR ASSEMBLY RR ta div ons 41 9 4 PUMP MOTOR ASSEMBLY 12 5 x e npn San 44 9 5 INLET VALVE ASSEMBLY deceit 45 9 SCEIEATERAASSEMBLEY uti ho 46 9 7 THERMISTOR ASSEMBLY E Entonces 47 9 8 STEAM GENERATOR ASSEMBLY E HN nsi eas 48 SEMEN cm HER 49 DISASSEMBLY INSTRUCTIONS ic anite saepe dere este A 52 a oY ah M 63 11 1 CABINET AND CONTROL PANEL ASSEMBLY 63 1 2 DRUM AND TUB ASSEMBLY oes 64 DISPENSER ASSEMBLY 65 66 1 SPECIFICATIONS COLOR WM3988H A W BLUE WHITE N NAVY BLUE POWER SUPPLY AC 120 V 60 Hz PRODUCT WEIGHT 192 Ibs 87kg WASHING 280 W ELECTRIC POWER DRAIN MOTOR 80 W CONSUMTION WASH HEATER 1000 W WASH 46 rpm REVOLUTION SPEED SPIN 1320 rpm CYCLES 9 WASH RINSE TEMPERATURES 5 SPIN SPEEDS 5 OPTIONS Prewash Rinse Spin Extra Rinse Stain Cycle Water Plus Drum Light Tub Clean SPINSEN
13. COVER 0 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 55 5 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 07 Disassemble the gasket 56 DOOR Open the door 2 Unscrew the 7 screws from the HINGE COVER 3 Put a flat screwdriver into 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 e Reconnect the connector after replacing the DOOR SWITCH ASSEMBLY 57 CIRGUE D Disassemble the cabinet cover HOSE lt PUMP HOSE Separate the pump hose the bellows and the circulation hose assembly from the pump assembly 3 Disassemble the pump assembly in arrow direction HEATER 0 Disassemble the cabinet cover 2 Separate 2 connectors from the heater 3 Loosen the nu
14. OIL 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 Reconnect or repair the connector 15 the connector connected to thermistor disconnected or disassembled Is displayed Yes 15 the connector connected Reconnect or to heater disconnected or Yes repair disassembled the connector Wash thermistor Dry thermistor 15 thermistor resistance Replace the out of range THERMISTOR about 39 5 kQ at 30 C ASSEMBLY Refer to 9 7 thermistor assembly Wash heater 15 Check heater Replace the resistance out of range Yes J HEATER 12 18 00 ASSEMBLY Refer to 9 6 Heater assembly Check the trans of water Replace the infiltration into thermistor Yes THERMISTOR terminal ASSEMBLY Does the water infiltrate thermistor terminal Note Chances that the cause occurs from the main controller are very little Sensing part of the ci
15. Refer to 9 5 wiring diagram Replace the MAIN HARNESS Check the PRESSURE After checking connector is the water level frequency below 24 6 kHz Refer to 7 4 Yes SWITCH Replace the MAIN PWB ASSEMBLY Note Environmental safety check list 1 No water tap leakage 2 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 gt gt lt 3 4 o DRAIN ERROR Yes Reconnect or repair the connector 15 the connector connected to pump motor assembly disconnected or disassembled Yes Drain pump Connection connector Check the AIR CHAMBER the tube clogged and press switch When you press both WASH RINSE button and SOIL LEVEL button simultaneously is the water level frequency below 26 0 kHz Refer to 7 4 25 Is the coil of the drain pump too high or low resistance of the coil is 10 20Q Refer to 9 4 Pump motor assembly Replace the DRAIN PUMP ASSEMBLY Replace the Is the voltage between connectors out of range WH pini BL3 After remove Terminal Position Assurance TPA of connector check as follows MAIN PWB ASSEMBLY Pump running 120 5 Stopped Motor Pump 0 1V Method 1 Press the Power button while the SPIN SPEED button and S
16. SE Delay Wash Steam WATER CIRCULATION Incorporated OPERATIONAL WATER PRESSURE 14 5 116 psi 100 800 kPa CONTROL TYPE Electronic WASH CAPACITY cu ft 3 47 4 0 IEC DIMENSIONS 27 W X 293 4 D X 3811 46 H 5019 46 D door open DELAY WASH up to 19 hours DOOR SWITCH TYPE Solenoid WATER LEVEL 10 steps by sensor LAUNDRY LOAD SENSING Incorporated ERROR DIAGNOSIS Incorporated AUTO POWER OFF Incorporated CHILD LOCK Incorporated RLM ENABLE Incorporated STEAM Incorporated 2 FEATURES 8 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 B 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 Steam Washing and SteamFresh Steam Washing features upgraded washing performance with low energy and water consumption SteamFresh cycle removes wrinkles from dry clothes B 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
17. al Hand Wash Wool 14 5 3 SPECIAL FUNCTIONS The option buttons also activate special functions including CHILD LOCK DRUM LIGHT TUB CLEAN and LANGYAGE 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 Oe 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 DRUM LIGHT The drum is equipped with a blue LED light that illuminates when the washer is turned on RINSE This light automatically turns off when the door is closed and the cycle starts To turn on the SPIN WE light during a cycle press and hold the RINSE SPIN button for seconds The drum light will illuminate and then turn off automatically after 4 minutes TUB CLEAN A buildup of detergent residue can occur in the wash tub over time and can lead to a mildew EXTRA 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
18. d Is the display PCB broken Replace the check the buzzer sound Yes DISPLAY and LED light while push PWB the button ASSEMBLY Is the button of panel stuck Repair the button 34 VIBRATION amp NOISE IN SPIN Remove the transit bolts and Base packing Have all the transit bolts and base packing been removed Move the washer or reinforce the floor Is the washer installed on a solidly constructed floor Check if the washer is perfectly level as follows Check the leveling of the washer with a level and check that the washer 15 stable Put an unbalance part rubber inside of drum and start LOAD test mode and run in high spin Refer to section 7 2 When the machine 1 spinning in high speed verify that it is stable If you do not have the unbalance part put 4 5 to 6 5 16 2 to 3 kg of clothing Once loaded press power Rinse Spin and start pause button in sequence When the machine 1 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 Adjustable feet 35 DETERGENT DOES FLOW IN Refer to NO WATER SUPPLY Prewash Is water supplied Are receptacles correctly connected to the terminals of the INLET VALVE ASSEMBLY Check the wiring Put the deter
19. e The Drum Light comes on when the Power button is pressed goes off when the door is closed and the washer starts operation The Drum Light remains off when the door is locked The Drum Light can be turned on while the washer is in operation by pressing the Rinse Spin button for 3 seconds The light will turn off automatically 4 minutes later e The Drum Light comes on when the washing cycle is finished and goes off 4 minutes later 3 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 gt Panel Water Circulation amp Steam Nozzle Drum Light Drain Hose Dispenser Drim Door Door Seal Q Lower Cover Cap Adjustable Feet Drain Plug Drain Pump Filter ACCESSORIES Included Accessories b Caps 4 GG for covering Water Hoses shipping bolt holes for removing Tie Strap Pip Bricker shipping bolts and for securing adjusting leveling feet drain hose for securing drain hose 4 INSTALLATION amp TEST 1 Before servicing ask the customer what the trouble is Check the setup power supply is 120V AC remove the transit bolts level the washer Check with the troubleshooting guide 4 Plan your service method by referring to the disassembly instructions Servic
20. e 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 Keeping e Turn clockwise to raise counterclockwise to lower HOW 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 lt 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 e Press the POWER button washing Press the Start Pause button Connect the power plug to the outlet e Connect the inlet hose isten for a click to determine if the door has locked Check the automatic reverse rotation Check th
21. e 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 Dry Heater Wash Heater Steam Generator Heater Wash Heater Steam Generator Heater Dry Heater Test Points 1 to 2 46 9 7 THERMISTOR ASSEMBLY Wiring diagram MAIN PWB n ale i le le DA1 DA2 Dry Wash THERMISTOR The thermistor temperature sensor is used to monitor water temperature in the tub Steam Generator Dry duct and Condensing duct Test d B points Dry Thermistor Dry Thermistor Wash Thermistor Dry Thermistor Test Points Result Remarks tolerance 5 39 5 At 86 F 30 C 26 1 kQ At 104 F 40 C F 12 1kQ At 140 F 60 C 8 5 At 158 F 70 C 3 8 203 F 95 C 2 8 At 221 F 105 C Steam generator Thermistor Test Points Result Remarks tolerance 5 2 39 5 1 4 At 266 F 130 C 1 0 At 293 F 145 C 0 7 kQ At 320 F 160 C 0 4 At 356 F 180 C 48 9 8 STEAM GENERATOR ASSEMBLY Wiring diagram Input A long MICOM PHOTO COUPLER WATER LEVEL SENSOR Test 1 Steam generator points 1 Construction of steam generator Inlet valve that controls supplying water Water level sensor that sense amount of water supply Thermistor ASSEMBLY the sense inner temperature of Steam g
22. e water heating function 0 Check the water supply amp ITH e Check if water is supplied through the detergent dispenser Check if the drum rotates clockwise and counterclockwise e Press the WASH RINSE button and the present temperature will be displayed Press 0 Check 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 WM3988HWM STEAM CYCLE COTTON NORMAL BULKY LARGE PERM PRESS 0 SANITARY DELICATES STEAM DOOR LOCK CHILD LOCK DELAY WASH 01 21 CO 5 PRE WASH CHILD LOCK e HAND WASH WOOL WASHING DRUM LIGHT ALLERGIENE EXTRA EXTRA HEAVY HIGH ENSE HOT COLD HIGH do x TUB CLEAN STEAM e SPEED WASH STAIN CYCLE SPINSENSE 1 WATER PLUS gt LANGUAGE WASH RINSE SPIN SPEED SOIL LEVEL DRY OPTION PRESS amp HOLD 3SEC FOR EXTRA FUNCTIONS 17 Use this button to turn the power e It shows elapsed time of the cycle the washer is
23. enerator Heater ASSEMBLY that heats water supply Steam generator CASE that is container of water supply nozzle and hose of water supply 2 Operation mechanism of Steam generator After supplying some amount of water through inlet valve and water level sensor Heater operates and steam generates 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 50 9 9 Wiring diagram MAIN PWB The Lamp Drum Light comes on when the POWER b
24. eters 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 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 9 4 PUMP MOTOR ASSEMBLY Wiring Circuit in the MAIN PWB Wiring Diagram MAIN PWB BL4 BL3 1234 111213 112 34 1 2 3 diagram DRAIN CIRCULATION PUMP PUMP Drain Pump Circulation Pump Test Points Test Points 1 to 2 10 20 0 1 to 2 18 30 9 5 INLET VALVE ASSEMBLY Wiring diagram PCB Inlet valve driving circuit CONNECTOR 1234 321 1234 2314 321 1121314 WH E COMMON BL we BK BL BL 11 2 112 112 CC RD BL INLET VALVE Each circuits of loads in wiring diagram are all same Test points and Result 12 1 2 1 2 0 8 1 2 kQ c2 ee 9 6 HEATER ASSEMBLY Wiring diagram 21 21 21 BL 21 BK 21 1211 211 21 THERMOSTAT lt rI gt DRY STEAM WASH HEATER GENERATOR HEATER HEATER Each circuits of loads in wiring diagram are all same 1 The Wash Heater is designed to rais
25. 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 DOOR LOCKED LAMP LIGHTS When the frequency of water level is lower than 22 9 kHz It can be canceled when the frequency is more than 23 8 kHz When the temperature inside the tub is higher than 45 and water level is not 25 5 kHz It can be canceled when the water level is 25 5 kHz or the temperature inside the tub is lower than 40 2 7 CHILD LOCK Use this option to prevent unwanted use of the washer Press and hold PRE WASH button for 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 2 8 WATER CIRCULATION e When washing and rinsing function of shower at the upper part of Gasket When washing it continuously operates for minutes and intermittently When rinsing it continuously operates after completion of water supply 2 9 STEAM For tough stained clothes sick room linens or baby clothes Steam Wash is available with Sanitary Bulk Large Perm Press Cotton Normal and Baby Wear cycles This option features upgraded washing performance with low energy and water consumption Do not load delicates such as wool silk and easily discolored clothes 2 10 DRUM LIGHT
26. gent in the correct place Has detergent been put in the correct compartment of the dispenser Pre wash Main wash Detergent Liquid chlorine Bleach Compartment Liquid fabric Softener Compartment Prewash Compartment 15 the detergent caked or hardened Clean the dispenser Main Wash Compartment 36 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 H p E compartment 2 Liquid chlorine Bleach Compartment Liquid fabric Softener Compartment Prewash Compartment Main Wash Compartment Clean the cap and Is the liquid detergent softener bleach cap clogged YES paj TATS a container 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 37 9 COMPONENT TESTING INFORMATION A WARNING When Resistance Ohm checking the Component be sure to turn the power off and do voltage discharge s
27. is out of ERROR order When water level frequency maintain condition of below 10 kHz and over 30 kHz DOOR OPEN ERROR Door not all the way closed Loose electrical connections at Door switch and PWB Assembly The DOOR SWITCH ASSEMBLY is out of order HEATING ERROR The THERMISTOR is out of order ERROR SYMPTOM LOCKED MOTOR The connector pin male white in the MOTOR HARNESS is not connected to the connector 3 female white of STATOR ASSEMBLY The electric contact between the connectors 3 pin male white in the MOTOR HARNESS and 4 pin female white connector in the MAIN PWB ASSEMBLY is bad or unstable The MOTOR HARNESS between the STATOR ASSEMBLY and MAIN PWB ASSEMBLY is cut open circuited The hall sensor is out of order defective e EEPROM is out of order Displayed only when the START PAUSE button is first pressed in the Load Test Mode DRY HEATING ERROR The connector 3 male white in the FAN MOTOR HARNESS is not connected to the connector 3 pin female white of FAN MOTOR ASSEMBLY The electric contact between the connectors 3 pin male yellow in the FAN MOTOR HARNESS and 3 pin female yellow connector in the MAIN PWB ASSEMBLY is bad or unstable The MOTOR HARNESS between the FAN MOTOR ASSEMBLY and MAIN PWB ASSEMBLY is cut open circuited B m POWER FAILURE e After the power supply is stopped while
28. maintaining fabric care Automatic Wash Load Detection Automatically detects the load and optimizes the washing time B Built in Heater Internal heater helps to maintain water temperature at its optimum level for selected cycles B 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 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 2 5 THE DOOR BE OPENED e While program is operating When a power
29. oil level press the Soil Level button repeatedly until the desired setting is on Press repeatedly to adjust the volume of the Beeper o set the type of or amount of drying time press DRY button repeatedly 13 5 2 CYCLE GUIDE The cycle guide below shows the options and recommended fabric types for each cycle Wash Rinse Stain Fabric type Spin Speed Soil Level Cycle Heavily soiled Extra High Sanitary underwear work No Spin clothes diapers etc Low Medium Warm Cold Large items such as Bulky Large blankets and a E end comforters pide eau 9 Rinse E lt 5 Cold Cold Dress shirts pants Pain Prose wrinkle free clothing ie ELA Heavy poly cotton blend Hot Cold Light clothing tablecloths Cold Cold Cotton linen towels shirts sheets jeans Hot Cold mixed loads Cold Cold Cotton underwear Extra High Allergiene pillow covers bed No Spin sheets baby wear Low Medium Dress shirts blouses Delicates nylons sheer or lacy Warm Cold Spin Heavy garments Warm Warm Low Light Items labeled hand washable Warm Cold No Spin Light Warm Warm Hot Cold Extra High Light Speed Lightly soiled clothing _ Cold Cold Normal Wash small loads Warm Cold Heavy Warm Warm NOTE To protect your garments not every wash rinse temperature spin speed soil level or option is available with every cycle Cotton Norm
30. ons 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 39 we 40 9 3 STATOR ASSEMBLY Wiring Circuit in the MAIN PWB Wiring Diagram diagram 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 v a gt I La 3l Pr E 4 Result Hall Sensor 2 4 1 3 5 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 START 6 You should measu
31. r temperature not higher than 45 Celsius 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 OVER FLOW ERROR Is Nu displayed Yes When you press both Check the AIR WASH RINSE button and CHAMBER SOIL LEVEL button and the tube simultaneously is the clogged water level frequency over 21 3kHz Refer to 7 4 Put laundry evenly Does the laundry lean toward one side not evenly Yes put in the DRUM assembly In the DRUM assembly lt Shamans FIL iwi L Adjust the height of washing machine to be kept horizontally Is the washing machine installed at an angle the inlet Note Environmental check list Does inlet valve work valve work when the power is not continuously applied when the power 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 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
32. rcuit tE consists of only resistors and capacitors 26 LOCKED MOTOR ERROR part of motor Is displayed Yes Check the connectors below Reconnect Is the connector disconnected Yes the connector Motor or disassembled connector Yes motor hall sensor connector wire motor Is rotor magnet cracked Replace motor drive connector part of main PWB assembly NA1 RD4 Yes the ROTOR Replace Is the resistance values range of 5 to 15 Q No the STATOR Motor Drive 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 lg gt Hall sensor part of wire Replace the Hall sensor Is hall sensor out of order Refer to 9 3 Stator assembly Hall sensor Check the IPM in the Replace the controller MAIN PWB ASSEMBLY 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 15 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 wate
33. re 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 42 7 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 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 Testing Hall Sensor from the Main PCB Assembly 4 3 and Result Hall Sensor 2 1 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 wiring diagram wire colors as your guide Plug in power cord close door and press power button DO NOT PRESS START Place meter leads on White Gray wires You should read 10 to 15 output from the Main PCB Assembly to the Hall sensor If no 10 to 15 Vdc is measured the control board is defective Place m
34. rgarments bedding and baby wear that are likely sources of allergic reactions The ALLERGIENE cycle helps reduce dust mite populations and helps reduce allergens Due to the high energy and temperatures used the ALLERGIENE cycle 15 not recommended for wool silk leather or any other delicate or temperature sensitive items HAND WASH WOOL 6 Only woolen items that are designated as Machine Washable should be washed in this washing machine Wash only small loads for optimum fabric care less than 8 Ibs Use only neutral wool safe detergents should be used Only a small quantity of detergent is needed due to the small load size and low volume of water in the cycle The HAND WASH WOOL cycle uses a gentle tumble action and low speed spin for ultimate fabric care 16 6 WIRING DIAGRAM PROGRAM CHART 60818291 HOLIMS YOOTHOOD aaa _ Und NOLWINOYIO ding arae 6 0906 TWNNEL 0 LON YOSNAS Honan nss 0 5 u g siet iN m A X si Jin e Lp Arif 3 qy enn En HEB ni ur d fete dd ER Ang ada 7A yaln ws n
35. t and pull out the heater CAUTION e When assembling the heater insert the heater into the heater clip on the bottom of the tub Tighten the fastening nut so the heater 15 secure THERMISTOR 1 Disassemble the cabinet cover Unplug the white connector from the thermistor 3 Pull it out by holding the bracket of the thermistor 58 WHEN FOREIGN OBJECT IS STUCK BETWEEN DRUM AND TUB Disassemble the cabinet cover 2 Separate the heater from the tub 3 Remove any foreign objects wire coin etc by inserting a long bar in the opening LAMP ASSEMBLY TOP PLATE ASSEMBLY 1 Unscrew 2 screws on the back of the top plate 2 Pull the top plate backward and upward as shown 3 Disconnect the connector 4 Disassemble the lamp assembly MOTOR DAMPER HINGE DAMPER 60 D 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 Checking the TSG TURBO STEAM GENERATOR CD To check out the fault diagnosis of TSG you can pull out the plug and let the water drain away 2 Be cautious in case of the TSG is hot
36. ufficiently 9 1 FILTER ASSEMBLY LINE FILTER Wiring Circuit in the MAIN PWB Wiring Diagram diagram MAIN PWB ASSEMBLY els points Eom x ud and Result Test Points WH 1 to RD S 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 gt rotation will forcibly clear off the connection The maximum allowable number of impulse authorizations 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 rotati
37. utton is pressed It goes off when the door is closed and the washer starts operation It remains off when the door is locked It can be turned on while the washer is in operation by pressing the RINSE SPIN button for 3 seconds The lamp will turn off automatically 4 minutes later It comes on when the washing cycle is finished and goes off 4 minutes later Test points 1 3 Original 3 to 1 16 5 Voltage Input 10 DISASSEMBLY INSTRUCTIONS CONTROL PANEL ASSEMBLY TOP PLATE ASSEMBLY 52 MAIN ASSEMBLY LLI 9 O C A 2 e SWITCH ASSEMBLY 2 Remove the Protective cover 3 Disconnect the connectors 4 Unscrew 1 screw on the back 5 Remove the Main PWB 53 DISPENSER ASSEMBLY CD 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 Red Housing VT BK 3 White Housing WH BK 4 Blue Housing GY BK 5 Red Housing BL BK 6 Blue Housing RD BK 6 Unscrew 2 screws from the back of the cabinet NOISE FILTER CD Disassemble two or three connectors from the NOISE FILTER 2 Unscrew a screw from the TOP BRACKET CABINET
38. washing machine is working the power is supplied rapidly TROUBLESHOOTING SUMMARY 8 3 indu OcL 2 081 4 992 2 091 4 022 9 9 1 4 62 0 021 4 992 jeuBis euBis 01 9 95 4 22 1 006 09 29 911 O eBeyoA SL OL 01 OSLI S LUld 01 uld 9 901 4 1 22 05 81 01 1 OJA 1 8 OSGL S 01 Zuld 2 82 4 22 0081 004 0 506 01 2 o1 1 8 0 OSL S 9 96 3 506 1V tuld HM ZUld 1A O0 HM TA OO tuid GH Uld HM ld GH O HM mseg Sioa 007 01 O8l HSVM OV 80 01 oe ndino guid JA ysem zuid yg wegs zuid p zuid HM puid QNO 205095 Luld 719 UOWWOD 619 618 UIEN VN 19141 Sjulog
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