WASHING MACHINE SERVICE MANUAL
Contents
1. Connect the power plug to the outlet Connect the inlet hose e 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 Check if water is supplied through the detergent dispenser Check if the drum rotates clockwise and counterclockwise Press the WASH RINSE button and the present temperature will be displayed Press the 9 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 405149154 11 D Vibration Guard ENERGY STAR X POWER ON OFF BUTTON Press to turn the washer ON Press again to turn the washer OFF NOTE Pressing the POWER button during a cycle will cancel that cycle and any load settings will be lost The door will unlock after a brief pause unles2. e aia 0 Beda ANC 1531 LN L SHM JIC d I lt 34d L1I4 3SION GHOO d 04 41 6 0 c OH HM H SINIOd 199 NI 3 LA INI 6 9 9 18 L 0 1A EHM 9 TA 0 dH EHM 19 L HM ETA t JOLOW 82 Du JojsiuJu8u OV Nd 9 SVN JOISIWI U useA 1d v SVN NER ANN VN 1 21 H31V3H 82d 1 _ 8 2 ZTA 4 E gt Gl pejoeuuoosIip 9 2 461 145 peddojs dung dunquea 1 Syuuni dung setta NOILIGNOO INC INANC 8 SLNIOd 16 1 A Ol 22081 4 996 22091 43 02 42662 22061 4 992 OW LZ 0911 dob ve UO 82 9901 dolZ2 86 0096 45602 0x68 9604 4 891 2209 4 071 UM 1 92 9 07 AovOL 03 9 66 0008 4 98 9pAG 91 L eau SA IVA SLNIOd 15 1 OJ V0 O3 20 O0 OJ Y L a NX 90 1H O S ZYN ZVN ZVN SLNIOd 1531 tms ER AOJSIUUI U weas SYN 5 ld 99 NIN SVN __ ABEN O __ AEN _ 1 ___ HMEZVN LNAN 2 1 s 1 NIN CGI 2 1 9d TT Teen
3. NYIGNS 42 Warm Cold No Spin Heavy sheer or lacy garments Low High Rin Extra High i Rinse and Spin 20 No Spin Spin Low Medium NOTE To protect your garments not every wash rinse temperature spin speed soil level or option is available with every cycle A chime will sound and the LED will not light if the selection is not allowed NOTE The washer automatically adjusts the wash time for the amount of laundry water pressure water heating time and other operating conditions Hot Cold Cold Cold Warm Cold Warm Warm NOTE These cycles use various wash motions to enhance cleaning and or fabric care performance These wash motions may sound different at different stages of the wash cycle This is normal 13 5 3 CYCLE OPTIONS DELAV STAR Frcs a as en eae de Once you have selected the cycle and other settings press this button to delay the start of the wash cycle Each press of the button increases the delay time by one hour for up to 19 hours Once the desired delay time is set press the START PAUSE button to start the delay time If the START PAUSE button is not pressed within 4 minutes the control will shut off and the settings will be lost STAIN TREAT IM M M HII Use this option for heavily soiled loads that need improved stain treatment When STAIN TREAT is selected the water temperature for the selected cycle will b
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5. When a power failed and power plug is taken out in operation While Door Lock lights turn on e White the motor is in the process of intertial rotating through the operation is paused 2 6 CONTROL LOCK Use this option to prevent unwanted use of the washer Press and hold CONTROL LOCK button for 5 seconds to lock unlock control When CONTROL LOCK is set CONTROL LOCK lights and all buttons are disabled You can lock the controls of the washer while washing 3 PARTS IDENTIFICATION Drain Hose Pee NO NM E ANI A Dispenser Door Adjustable Feet Drain Plug Drain Pump Filter B ACCESSORIES Hot Cold 1 each Hose n Caps 4 for covering shipping bolt holes Non skid pads 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 Control Panel Back of Washer Drum Door Seal Cold Water Inlet Air Vent for Safety Hot Water Inlet My Tie strap Option to secure drain hose to standpipe inlet hose or laundry tub Elbow Bracket 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 remove the transit bolts level the washer Check with the troubleshooting guide 4 Plan your service method by referring to the disassembly inst
6. a N d un WASHING MACHINE SERVICE MANUAL CAUTION HEAD THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT MODEL 796 4051 90 P No MFL30599151 T SFECIFICATION cR 2 FEATURES 8 TECHNICAL EXPLANATION 4 44848 4 OR RN 7 EB ST sagagang anae 8 a ETAN AN sasasi it ni a alinn 11 A LIIS ee ee ann 11 aga 13 pom ade uem agg ll asni 15 5 4 EXPLANATION OF EACH PROCESS is a 15 PRE R M 17 PIE TELDE A 19 PETE em 19 IR E 19 7 3 HOW TO CHECK THE WATER LEVEL FREQUENCY is a 19 TE SHOOTING sasuratan nn E 20 8 1 SAFETY CAUTION gangasafni 20 8 2 ERROR MODE SONNA Ysta 20 8 3 TROUBLESHOOTING SUMMARY 22 8 4 TROUBLESHOOTING WITH 24 6 5 TROUBLESHOOTING ELSE ina 31 9 COMPONENT TESTING INFORMATION 36 ASS LINE FILTER 36 9 2 DOOR LOOK SWITCH ASSEMBLY 37 A ENEE 39 A MOTOR SE Al 42 Yan ze 43 MENE ai
7. Is liquid detergent softener bleach put in the correct compartment of the drawer 1 4 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 cap clogged YES Container ERE Secure the bolt Is the motor bolt loosened 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 35 9 COMPONENT TESTING INFORMATION A WARNING When Resistance Ohm checking the Component be sure to turn the power off and do voltage discharge sufficiently 9 1 FILTER ASSEMBLY LINE FILTER Circuit Circuit in the MAIN PWB Circuit diagram diagram Test points and Result Test Points WH 1 to RD 3 WH 3 to RD 1 9 2 DOOR LOCK SWITCH ASSEMBLY Circuit Circuit in the MAIN PWB 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 cl
8. lama sn 44 PE E malae ET ati as 45 ET RV pe 48 Me E 56 11 1 CABINET AND CONTROL PANEL ASSEMBLY 56 11 2 DRUM AND TUB ASSEMBLY css ekkunhe n e anana nana anana RU M AG E Ht 57 bmg ca hl SER EI ET ee eee a eea anank naa anapa an ejaan eg 58 CONTENTS 1 SPECIFICATIONS 4051 9 COLOR White Patina Beige POWER SUPPLY AC 120 V 60 Hz PRODUCT WEIGHT 200 4 Ib 90 9kg mw DRAIN MOTOR CONSUMPTION WASH HEATER 1000W SPEED SPIN 0 1200 rpm OPTIONS Stain Treat 2nd Rinse Delay Start Clean Washer Control Lock My Cycle Auto Soak Smart Sense 261 4 W X 301 3 D X 3815 16 543 8 D door open RUN 2 FEATURES amp 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 tum
9. power by unplugging washer and ohm check hall sensor to verify failure of the hall sensor Test Point fae in Hall Main PCB Assembly NE 4 2 4 and Result Hall Sensor 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 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 8 12 kQ 8 12 kQ 41 9 4 PUMP MOTOR ASSEMBLY Circuit diagram MAIN PWB 4 BL3 Pump Driving circuit Drain Pump Test Points 1 to 2 10 20 Q 42 9 5 INLET VALVE ASSEMBLY Circuit diagram PCB Inlet valve driv
10. two different types of blanket materials Yes While a cycle is running press the WASH RINSE and DELAY START buttons together to display the water level Is the water level 2213 Refer to 7 3 Unplug the washer Does the water valve remain on when the power is removed from the washer Replace the INLET VALVE ASSEMBLY OVER FLOW ERROR Is displayed Check the AIR CHAMBER and the tube clogged If the water valve is energized as soon as the washer is plugged in or when the power button is pressed replace the main PCB PRESSURE SENSOR ERROR Is displayed Check the connectors at the Reconnect or main and the pressure Yes repair switch Are the connectors the connector loose or disconnected P Measure the resistance Replace the between pins 1 and 3 ofthe No pressure pressure switch ls the switch resistance between 210 and 230 Is the AIR CHAMBER and Fix the air the tube clogged chamber and remove the foreign material Replace the MAIN PWB assembly 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 LED on while the power Replace the Is the supplied voltage 120V AC 1096 15 Is
11. will sound twice 3 Press the START PAUSE button to cycle through the test modes System or component START tested or activated PAUSE LEDs lit Software versions versions Door locks Tumble Clockwise EM RPM 42 50 1 42 50 Low speed spin RPM 35 45 2 RPM 35 45 Drain pump High speed spin RPM 110 117 RPM 110 117 Drain pump Prewash cold Water level 0 255 Water level 0 255 water valve Main wash cold Water level 0 255 Water level 0 255 water valve Waterlevel 0 255 Water level 0 255 if IL r3 Water level 0 255 Water level 0 255 RPM 42 50 RPM 42 50 Counterclockwise 10 Tub water temp in C Tub water temp in C 8 seconds Circulation pump Waterlevel 0 255 N A Drain pump Water level 0 255 tr level 0 255 Steam water level Steam gen water level AE Steam gen heater Steam gen water temp 1 2 seconds Vibration Sensors 050 051 bS2 or 053 Exit test mode Oft NOTES RPM 220 RPM display RPM gt 200 RPM display X 10 WATER LEVEL 0255 empty 0248 normal 0255 tub clean 7 3 HOW TO CHECK THE WATER LEVEL FREQUENCY Press the WASH RINSE and DELAY START button simultaneously Bleach water valve 7 Steam generator water Hot water valve 6 Water level 0 255 1 050 651 i jor The digits indicate the water level frequency x 1 kHz So for example a display indicati
12. 8 4 TROUBLESHOOTING WITH ERROR INLET VALVE ERROR Is the voltage at the inlet Replace the valve coil 120VAC with the Yes INLET VALVE valve energized ASSEMBLY Is displayed Yes When you press both Check the AIR WASH RINSE button and CHAMBER DELAY START button and the tube simultaneously clogged is the water level lt 246 Is the wiring correct Refer to the wiring diagram for correct connections Refer to 9 5 wiring diagram Replace the MAIN HARNESS Check the Yes pressure switch Refer to Clean or replace the filter Is filter inlet valve clogged with foreign material Yes Is the water level still lt 246 Replace the MAIN PWB ASSEMBLY ALWAYS CHECK FOR EXTERNAL CAUSES Water supply shut off Frozen water lines Kinked fill hose Low water pressure Check the connectors at the Reconnect or main PCB and the water Yes repair valve Are the connectors the connector loose or disconnected test 2 Is the resistance of fill valve Replace the coil between 800 and INLET VALVE 1200 ASSEMBLY Refer to 9 5 inlet valve assembly Proceed to next step at right 24 DRAIN ERROR Is displayed Yes Measure the resistance of the drain pump motor Is the resistance between 10Q 200 Refer to 9 4 Pump motor assembly Replace the Yes DRAIN PUMP ASSEMBLY Reconnect or repair Ch
13. 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 47 10 DISASSEMBLY INSTRUCTIONS Be sure to unplug the machine before disassembling and repairing the parts CONTROL PANEL ASSEMBLY TOP PLATE ASSEMBLY CONTROL PANEL ASSEMBLY DISPLAY PWB ASSEMBLY 48 CD Unscrew 2 screws on the back of the top plate 2 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 scr
14. be adjusted to optimize wash and rinse performance To use the SMART SENSE feature press and hold 2nd RINSE button for 3 seconds Excessive detergent amount rinsing cycle increase Insufficient detergent amount washing time increase Asmall amount of remaining detergent detected additional rinsing will be added 14 5 5 EXPLANATION OF EACH PROCESS 1 Stay Electrical power is supplied e Washer is ready to work and the micom is in the active mode 2 Water e After loading laundry and selecting a course and a cycle water is supply supplied and drum rotates e When a user selects Pre wash course water is supplied through pre wash valve 3 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 4 Heating 8 The heater heats the water in drum to the selected water temperature washing and drum rotates for washing 5 Washing When the water temperature reaches to the selected temperature the heating heating stops and only the drum rotates 6 washing lf water temperature becomes lower than selected because of re supplied water the heating starts again T Washing e Fuzzy Logic decides washing time according to the laundry load water temperature and other factors Drainage A pump motor drains the water from the drum e After sensing drained water am
15. ble 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 Control Lock The Control 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 Tm 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 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 2 5 THE DOOR CAN NOT BE OPENED e While program is operating
16. cracked Replace the ROTOR DOOR OPEN ERROR Is displayed Is the spring in the door Replace gasket latch hook on the door or hinge strong and tight Remove foreign objects Yes Check the connectors at the Reconnect or main PCB and the door repair switch Are the connectors the connector loose or disconnected Can you hear the door latch Replace the attempting to lock the door PCB at the beginning of the cycle ASSEMBLY or diagnostic mode If tested off the stator using Replace the the diagram above ohm DOOR check the resistors from pin SWITCH 5 to pin 1 amp pin 2 Does ASSEMBLY either test show an open infinity the hall sensor You should measure approximately 10 000 ohms from pin 5 to pin 1 and 10 000 ohms from pin 5 to pin Is the door closing properly Replace Is the gasket damaged and No Door interfering with the door or Assembly latch Are there foreign objects caught in the door Prceed to next step at right 28 UNBALANCE ERROR Is displayed Yes Does the laundry lean Put laundry toward one side not evenly Yes gt evenly put in the DRUM assembly In the DRUM assembly Adjust the height of washing machine to be kept Is the washing machine installed at an angle horizontally Note Environmental check list 1 Removal of transportation based fixed bolt 2 Confirmation on the material to see if it is capable of handling
17. ctor wae Wash thermistor Replace the Check the thermistor resistance Is the resistance Yes THERMISTOR correct according to the ASSEMBLY chart Refer to 9 7 thermistor assembly Are the thermistor terminals Replace the dry and free of corrosion THERMISTOR ASSEMBLY Note The temperature sensing circuits on the main PCB are very simple consisting only of resistors and capacitors Problems with wiring or connections in the thermistor circuit are the most likely cause for this error Be sure to check ALL connections and wiring thoroughly The main PCB should only be replaces as a last resort as it is unlikely to be the cause LOCKED MOTOR ERROR Is displayed Yes Check the connectors at the main PCB and the main motor Are the connectors loose or disconnected Main PCB connectors RD3 and NA4 Motor connectors to stator and hall sensor Hall sensor part of wire Yes Reconnect the connector connector wire motor 27 part of motor Replace the STATOR Check the resistance of the stator winding from the main No PCB connector RDS Is the resistance between each pair or wires between 5 and 15 Measure pins 1 2 1 3 and 2 3 Replace the Hall sensor Is hall sensor out of order Refer to 9 3 Stator assembly Hall sensor No Check the IPM in the controller Replace the MAIN PWB ASSEMBLY Is rotor magnet
18. eck the connectors at the main PCB and the drain Yes pump Are the connectors loose or disconnected Check the voltage between Replace the the main PCB connectors No gt MAIN PWB NA4 1 BN and BL3 1 BK Is ASSEMBLY the voltage 120 VAC 5 the connector TO TURN ON THE DRAIN PUMP 1 Turn on the washer 2 Press the SPIN SPEED button to select LOW speed 3 Press the START PAUSE button The drain pump will be energized for several minutes at the beginning of the spin cycle ALWAYS CHECK FOR EXTERNAL CAUSES Kinked or clogged drain hose Frozen drain hose Foreign objects clogging the drain pump filter Connection connector Foreign objects caught in pump impeller When you press both Check the air WASH RINSE button and dome and DELAY START button pressure hose simultaneously is the for clogging water level 250 Check the pressure Proceed to next step at right switch See test 2 25 HEATING ERROR Is E displayed Check the connectors at the Reconnect or main PCB the heater and the Yes repair thermistor Are the the connector connectors loose or disconnected T Wash heater Check the resistance of the Replace the heater Is the resistance No 7 HEATER between 120 and 18Q ASSEMBLY Refer to 9 6 Heater assembly Proceed to next step at right 26 Reconnect or Is the connector connected to thermistor disconnected or Yes repair disassembled the conne
19. efault settings available options and recommended fabric types for each le All le modifier adjustments are shown below th fault setting for h le cycle Allowable modifier adjustments are shown below the default setting for each cycle Available option B 4051 9 Default setting Cycle Options Fabric or Display Wash Wash Rinse Spin Speed Soil ADD 24 STAIN Load Type Time Min Motion Temperature PEG Level SOAK RINSE TREAT Warm Cold Cycle Cotton linen towels Hot Cold Extra High Heavy Normal shirts sheets jeans 50 56 Cold Cold No Spin Light Casual mixed loads OW Medium Warm Cold Bulky Large items such as 59 Warm Warm Medium Heavy Bedding blankets and comforters No Spin Light Hot Cold Cold Cold Extra High Light Kids Wear 91 97 Warm Cold No Spin Normal Warm Warm Low Medium Warm Cold Extra High Heavy Heavy soiled Cotton 04 100 2 Duty Fabrics Cold Cold Hot Cold Cold Cold Extra High Heavy White Fabrics 69 75 Warm Cold No Spin Light Warm Warm Low Medium Extra High Lightly soiled clothing 20 small loads i Cold Cold Normal Cold Small loads of cotton linen Extra High towels shirts sheets 57 63 No Spin Clean Low jeans mixed loads T M T Extra Hot Cold Normal Heavily soiled items ELLB gh such as work clothes 101 107 No Spin Light diapers etc Ar Cold Cold Medium Normal Delicates
20. egin as warm water to help prevent the setting of certain types of stains Then as the cycle progresses the water will be heated to higher temperatures to help remove stains that require treatment at higher temperatures This option is designed for optimum stain removal NOTE If STAIN TREAT is selected with the SANITIZE cycle the cycle will begin with very hot water since that is default for that cycle and cannot be changed cric ze RO Kc This option will add an extra rinse to the selected cycle Use this option to help ensure the removal of detergent or bleach residue from fabrics Use the AUTO SOAK option garments to help remove difficult spots or stains on fabrics This option provides a 30 minute presoak prior to the start of the selected cycle 1 Add detergent only to the Main wash compartment or Liquid Box of the dispenser drawer 2 Select desired cycle 3 Select cycle modifiers 4 Press the START PAUSE 5 4 SPECIAL FUNCTION rae ee A buildup of detergent residue can occur in the wash tub over time and can lead to a mildewy or musty smell The CLEAN WASHER cycle is specially designed to remove this buildup using bleach or other cleaner designed specifically for cleaning front load washers The CLEAN WASHER cycle should be run once a month or more often under heavy use conditions or if odor is present NOTE Do NOT use this cycle with clothes and do NOT add dete
21. equence solidly constructed floor floor spinning in high speed verify that it is stable Yes If itis not 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 leveling of the washer with a level and check that the washer is stable Check the t Yes vibration Sensor Lock nut Adjustable feet reinforce the When the machine is DETERGENT DOES NOT FLOW IN Refer to NO WATER SUPPLY Check the wiring Prewash Is water supplied Are receptacles correctly connected to the terminals of the INLET VALVE ASSEMBLY Main wash Put the detergent in the correct place Has detergent been put in the correct compartment of the dispenser Pre wash Main wash Detergent 0 4 2 Liquid chlorine Bleach Compartment Is the detergent caked or hardened 1 2 Liquid fabric Softener Compartment 3 Prewash Compartment 4 Clean the dispenser Main Wash Compartment 34 LIQUID DETERGENT SOFTENER BLEACH DOES NOT FLOW IN SR Prewash Refer to Is water supplied NO WATER SUPPLY Check the wiring on the dispenser Are the plugs correctly connected to the terminals of the INLET VALVE ASSEMBLY Put it in the correct compartment
22. ews 5 Remove one screw Lift the side the control panel assembly and pull it out 7 Unscrew the 9 screws M4 1 screw M3 from the control panel assembly Disassemble the Display PWB Assembly MAIN PWB ASSEMBLY I Disconnect the POWER connector and SENSOR SWITCH ASSEMBLY 2 Remove the Protective cover PROTECT COVER 3 Disconnect the connectors 4 Unscrew 1 screw on the back 5 Remove the Main PWB 49 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 A K x Wire Color Blue Housing YL BK White Housing BK WH Blue Housing BK GY Red Housing BK Blue Unscrew 2 screws from the back of the cabinet CD Disassemble two or three connectors from the NOISE FILTER 2 Unscrew a screw from the TOP BRACKET 50 CABINET COVER CD Unscrew the 6 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 51 9 e gt 5 Open the door Disas
23. ing circuit CONNECTOR 112 3 4 4 321 1 2 3 4 1 12 3 4 321 1121314 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 temperature Test After pull out the connector of defective valve check the resistance points and Result n Test points 1 2 Result 0 8 1 2 kQ 43 9 6 HEATER ASSEMBLY Circuit diagram MAIN PWB X134 HEATER Each circuits of loads in wiring diagram are all same The Wash Heater is designed to raise the wash water to the desired temperature selection during certain wash cycles Wash Heater Wash Heater 1 to 2 12 18 44 9 7 THERMISTOR ASSEMBLY Circuit diagram MAIN PWB WASH THERMISTOR At 221 F 105 C L Test Result Remarks 5 Points tolerance 5 esu Wash Thermistor 45 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 46 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
24. maining spin power rinse hold is selected the drainage is not proceeded after rinse finishes o D lt lt JJ emaining spin The same with item isentangling 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 16 6 PROGRAM CHART Disentangle D T Intermittent Spin 1 5 Extra or Stain Extra amp Stain Rinse 2 o D H ECCE EE HE HH nm n o gg p Water Supply W S 15 E E E E EN ae A a EHIH EE N IN reroll el Main Wash sh Wash Cool tj _ Wash i BI E EL we el ei e _ d um PEDE Sanitize Normal Casual Bul Delicates PROGRAM CHART Express Wash Rinse Spin prom water temperature and ambient temperature The total working time will vary with the load size NOTE Cycles are different depending on the models Wash time is in minutes 60 Opti
25. ng 241 a Water level frequency of 241 x 1 kHz 24 1 kHz 19 8 TROUBLESHOOTING 8 1 SAFETY CAUTION There s built in 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 will disappear and the machine will go into the pause status Incase of TEE j at 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 the case of FE 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 The load is too small UNBALANCE The appliance is tilted 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 213 NE is displayed the drain pum
26. ning 7 54 MOTOR DAMPER 55 D Disassemble the back cover 2 Remove the bolt 3 Pull out the Rotor Unscrew the 2 screws from the tub bracket Remove the 6 bolts on the stator 3 Unplug the 2 connectors from the stator D 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 CABINET amp CONTROL PANEL ASSEMBLY 5 5 ww 9 2 3 2 2 11 1 11 2 DRUM amp TUB ASSEMBLY 59 1 SQ i ae N 7 S Y 7 7 2 amp 7 4 dd a 520 N x In case of replacing THERMISTOR of HEATER ASSEMBLY K320 replace HEATER ASSEMBLY K320 HEATER ASSEMBLY K820 includes THERMISTOR x In case of replacing BEARING BALL K121 K122 GASKET K125 replace TUB ASSEMBLY OUTER K105 TUB ASSEMBLY OUTER K105 includes BEARING BALL K121 K122 GASKET K125 Part Assembly K142 includes 10 screws 5 11 3 DISPENSER ASSEMBLY 58
27. onal Cycle Pre Setting Time Water Supply 60 sec Drain Basic Cycle Intermittent Spin 1 5 Disentangle D T Water Supply W S PROGRAM CHART Extra amp Stain Extra or Stain BEI i S 8 ini ow e SR ECES Bse SBR j ooo 0 22 E D b cc D 18 water temperature and ambient temperature The total working time will vary with the load size NOTE Cycles are different depending on the models Wash time is in minutes 60 sec Optional Cycle Pre Setting Time Water Supply 60 sec Drain Basic Cycle 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 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 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 button while the above condition Then buzzer
28. ose 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 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 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 37 11 38 9 3 STATOR ASSEMBLY Circuit Circuit in the MAIN PWB diagram 1 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 tr 39 The hall
29. ount 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 During this process the drain pump works for drainage intermittently 15 O Process Explanation Intermittent 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 n this process the remaining water during washing process is extracted and the selected speed is kept 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 e Rinsing process Last drainage e After spin finishes and power is not supplied to motor the drum rotates by re
30. p will operate to drain the water automatically PRESSURE SENEOR The SENSOR SWITCH ASSEMBLY is out of order Door not all the way closed DOOR OPEN Loose electrical connections at Door switch and PWB Assembly The DOOR SWITCH ASSEMBLY is out of order Hed e The THERMISTOR is out order 20 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 e EEPROM is out of order x Displayed only when the START PAUSE button is first pressed in the QC Test Mode EEPROM ERROR POWER 10 FAILURE e The washer experienced a power failure 21 8 3 TROUBLESHOOTING SUMMARY sjepouu uo JUO 777 LON NOW GNNOYD WNINH3L ONIY HOI93NNOO 1 Gok 00 1 Gok 00 c SZ 1 ONISNOH TWNINYSLOS S o WNIAH310S2 lt gt 1 TL e C 340N rites EA MOSN3S 3unS534d M YOLSINYJHL YN HOLON TL MEE Po MER MOSN3S 093 HOSN3S NOILVHBIA H A
31. rgent or fabric softener For powdered tub cleaners add the cleaner to the main wash compartment of the dispenser drawer Place tablet cleaners directly into the tub Always follow the cleaner manufacturers instructions and Recommendations ieee ee Use this option to disable the controls The washer can be locked during a cycle This feature allows you to prevent children from changing cycles or operating the machine Once set the CONTROL LOCK must be turned off before the controls can be used Once the washer has shut off the power button will allow the machine to be turned on but the controls will still be locked When the controls are locked CL will be displayed alternately with the estimated time remaining Press and hold the CONTROL LOCK button for 5 seconds to activate or deactivate the controls 000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 Select this option to store a customized wash cycle for future use 1 Select a cycle 2 Press the desired options 3 Press the desired modifiers 4 To save the cycle press MY CYCLE for 3 seconds 5 Press the START PAUSE 6 To reuse this cycle at another time select MY CYCLE and press the START PAUSE SMART I cR RNC This feature uses a sensor in the tub to check the hardness of the water and the detergent amount Wash and rinse cycles will
32. ructions 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 e Turn the leveling feet to adjust with the supplied wrench the appliance Do first lower side to remove easily Ne Keep the shipping bolts and spanner for future use e 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 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 e Press the POWER button Press the START PAUSE button Preparation for
33. s the water level or temperature is too high S CYCLE SELECTOR KNOB Turn this knob to select the desired cycle Once the desired cycle has been selected the standard presets will be shown in the display These settings can be adjusted using the cycle setting buttons anytime before starting the cycle START PAUSE BUTTON Press this button to start the selected cycle If the washer is running use this button to pause the cycle without losing the current settings NOTE If you do not press the START PAUSE button within 4 minutes of selecting a cycle the washer automatically turns OFF CYCLE MODIFIER BUTTONS Use these buttons to adjust the desired cycle options for the selected cycle The lights above the buttons show the current selection NOTE Not all settings are available on all cycle selections 12 3 SPECIAL CYCLE AND OPTION BUTTONS These buttons are used to activate special cycles or options DETERGENT AMOUNT INDICATOR Bars light up to indicate the best amount of HE detergent to use based on size of dry load sensed by washer control Indicator will not be accurate if any wet clothes are placed in washer TIME AND STATUS DISPLAY The display shows the estimated time remaining load size cycle status and door lock status DISPENSER Dispenser drawer This drawer contains the compartments for detergent and additives 5 2 CYCLE GUIDE The cycle guide below shows the d
34. semble 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 52 Open the door Unscrew the 6 screws from the HINGE COVER Put a flat screwdriver into the openng of the hinge and pull out the hinge cover Open the door and disassemble the CLAMP ASSEMBLY Unscrew the 2 screws 1 Disassemble the cabinet cover CIRCULATION 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 53 HEATER 1 Disassemble the cabinet cover 2 Separate 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 Disassemble the cabinet cover 3 C Unplug the white connector from the thermistor 3 Pull it out by holding the bracket of the thermistor WHEN FOREIGN OBJECT IS STUCK BETWEEN DRUM AND TUB 1 Disassemble the cabinet cover 2 Separate the heater from the tub SS 2 ra 3 Remove any foreign objects wire coin etc by inserting a long bar in the ope
35. 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 Sa Em Lo yrs 7 47 _ T FE w 8B X 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 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 40 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
36. the current rating of multi outlet power strip enough Avoid connecting several electric devices Check the connectors at the main PCB and the line filter Are the connectors loose or disconnected is on MAIN PWB ASSEMBLY Check the fuse or reset the circuit breaker Is three pin wire of Replace the display PWB broken DISPLAY PWB Alternate with ASSEMBLY explanation Display PWB Reconnect or repair the connector Connecting connector MAIN PWB Display PWB BUTTON DOESN T WORK Check the connectors at the Reconnect or main PCB and the line filter Yes gt Repair Are the connectors loose or the connector disconnected Check the connectors Replace the between the main and Yes main the display PCB Are the connectors loose or disconnected Replace the main PCB VIBRATION amp NOISE IN SPIN 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 Have all the transit bolts Remove the and base packing been No transit bolts removed and Base packing Unbalance Part If you do not have the unbalance part put 4 5 to 6 5 108 2 to 3 kg of clothing Once loaded press power Rinse Spin Base Packing Is th led Move the and the start pause button 5 t e washer installed in s
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