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WASHER/DRYER COMBO TRAINING MANUAL

1. WM3677 COMBO Page 53 of 68 TRAINING MANUAL BALL SENSOR continued 1 Remove the four screws and the back cover 2 Hemove the single screw that secures the sensor bottom right as you face the back of the COMBO o Separate the connector S WM3677 COMBO Page 54 of 68 TRAINING MANUAL a eee DRYER REPAIR The dryer portion of the COMBO is a condenser type dryer It works on the principal that water condenses on a cool surface similar to moisture collecting on a cold drink on a hot and humid summer day A fan circulates air through the warming duct drum and condenser and over and over The air is warmed because warmer air holds more moisture than cooler air and the heat causes more of the water to be evaporated form the laundry The warm moist air 15 directed through the condensing duct which is cooled by a spray of cold water This difference in temperature causes the moisture to precipitate in the condenser where it and the cooling water are exhausted by the drain pump The air now dry is passed over the warming element and through the laundry again as the process repeats itself Because the air is recycled instead of exhausted a vent and lint filter are not necessary for this type dryer 1 Remove the clamp screw and oull the boot
2. O MO WM3677 COMBO Page 15 of 68 TRAINING MANUAL DETERGENT DISPENSER The dispenser drawer is a multi chambered reservoir that allows the user to add all the appropriate laundry additives before starting the cycle It has a place for pre wash detergent main wash detergent fabric softener and bleach Powdered or liquid detergents may be used but softener and bleach must be liquids Detergents should carry the HE designation Do not use regular detergents in the combo or oversudsing will occur The top of the dispenser box is shown here The dispenser works by using various solenoids to apply water to different compartments liquid products are dispensed from a siphon box As the appropriate chamber is flooded the box fills and the water flushes the laundry WM3677 COMBO Page 16 of 68 TRAINING MANUAL product into the tub It is mixed with water before contacting the laundry to prevent spotting or damaging the fabric Notice that the pre wash and main wash fill tubes enter the dispenser at an angle If one or the other fill valve is opened the water goes into the appropriate detergent compartment However if they are opened simultaneously the streams deflect and dispense the softener Some water may run through the main and pre wash compartments but since the dete
3. H M WM3677 COMBO Page 29 of 68 TRAINING MANUAL WASH HEATER MALFUNCTION When checking the voltage between connector during whites washing Isthe voltage 120 V AC Replace the MAIN PWB ASSEMBLY After power off is the resistance of wire RED YELLOW connectors between 100 300 V amp After power off and the heater terminal is disconnected is the resistance 10 30 0 Replace the PWB HARNESS When pressing WASH RINSE is the displayed temperature over 10 C higher than the selected temperature Extra Hot 75 167 F Hot 50 C 122 F Warm 40 C 104 F Cold 30 C 77 Check if inlet hose is connected to a hot faucet otherwise replace MAIN PWB ASSEMBLY Check electrical connection Replace THERMISTOR Is the resistance between 2 and 3 of Connector 1 2 5 180 61516 When checking the THERMISTOR on the tub Push the THERMISTOR is the THERMISTOR loose tightly to the Gasket WM3677 COMBO Page 30 of 68 TRAINING MANUAL NO CIRCULATION Is the impeller of the drain pump clogged YES Remove foreign material Hose Connector White Remove foreign material Are the Hose Connector and or Ho
4. SEO uogdo es uoyng NOILdO papajas aq ue 55214 06 09 06 e ENE QUES 5509 pue weng peres esni 01 our Dumas peursap jun Ajpereedeu poc aug sseud pos abugua spunos deog 2 g VOTING wagen pur ipapoda uogna peods suoqde paursap pores udg staid peeds uids aur a amp umu oy peads updg dwaj asurgusu POISED paag Au TY ejes L ad eu uo pedi unito J88 814 Qui dois eungng 20 aJojs Oy noA sao 1105 13345 NidS 35 5 WOLSND ISNVd LUVLS 3HOWC Bursseud 5 Bursseud Aq ue pe iy 1213135 Aude apo ree 01 qoux 4 0247 ahoy HMjSEA dos ou ai YOUNG s esnegrueis 19 90123135 Bursseud
5. f TT LLL HOLIMS HOLSINH3SHL 997 _ TE HL FEH HOLON L 6 Hi HOSN3S A 11 J o 18 NIYIN o e v e 2 HM 2 8084096 9 2 9 8 9 MM EEE ELELE L Page 58 of 68 TRAINING MANUAL WM3677 COMBO EXPLODED VIEW Control Panel and Cabinet Page 59 of 68 TRAINING MANUAL WM3677 COMBO EXPLODED VIEW Drum and Tub X X M WM3677 COMBO Page 60 of 68 TRAINING MANUAL EXPLODED VIEW Dispenser M WM3677 COMBO Page 61 of 68 TRAINING MANUAL EXPLODED VIEW Dryer Parts M M WM3677 COMBO Page 62 of 68 TRAINING MANUAL Loc PartNo 001 3829
6. O JOAGUORM 0353201 Bungado 51 GILAM Jeuse uia wogngq eg porqesip suognq we pus SEY 42071 OHS 785 51 3904 PRD um erc An seed pulis 21 1 104 eq 0 yaona ou us Burumeua e e Gugesado si apa apa Aug jo ues Spuo20s JO pue spud dm jo aseu uojng JOYS GEN oj 00000 s asp si samad eui oj sig esp SNLWLS HSVM 2 ONINIVINSY LSS Y3MoOd TRAINING MANUAL Page 14 of 68 WM3677 COMBO PROGRAM CHART WASHING PROGRAM CHART Water Supply W S Intermittent Spin 1 5 Disentangle D T A Wem T eem a Approx N 5 W W wi Working d dca sE MERI o fts 21 22 Jr os 2o zo 360 50 cof ffl of fen oo eo foo peo foo fee oo ff fe fa fo mo 2 Se M UT 119
7. Ame TIME Towels fol T TTT TTT F Li rt ma epe 8 o j d IT so EFIE Wes Se prr pug I LS p vr c oT oa EE m ie NN SE oe liL RN pw GE gt lt RR A A Tins MLA N L 1 931 3 1 3 Inse MOREM Wash time is in minutes Pre Setting Time Water Supply 60 sec The total working time will vary with the load size Drain 60 sec water temperature and ambient temperature This chart shows the components and their times of operation in the various wash cycles Remember that this time estimate is for the basic cycles before the fuzzy logic adjustments are made The dryer can be set to dry for a specific time 30 60 90 120 minutes or it can use a sensor to determine when the clothes are dry BEFORE PERFORMING SERVICE e Becareful to avoid electric shock when disconnecting parts for troubleshooting e Most terminals in the COMBO have 120 or DC on them
8. 4050 K311 4036 4050 K320 5301FR1158J K340 4681EA2001D K342 5214FR4006L K344 3108ER1001A K345 4681EA2001C K346 383EER2001A K350 4417FA1994G K351 6501KW2002A K360 4413EA1002B 410 4970FR2084P 411 4930FR3040A K510 4986 0002 511 4974 200 K512 4932 4002 K520 4738EH1002A K530 4861ER2001D K540 3504ER3002A K550 5214 4125 K560 5214 4006 K610 383EERS3001E M100 5208 0002 M101 5208 M110 4681ER1004A WM3677 COMBO Description TUB ASSEMBLY INNER DRUM LIFTER ASSEMBLY SPIDER BEARING BALL BEARING BALL BOLT ASSEMBLY SEAL BALANCE WEIGHT SCREW DRAWING BALANCE WEIGHT TUB COVER ASSEMBLY SEAL BOLT DRAWING THERMISTOR ASSEMBLY SEAL SEAL SEAL HEATER ASSEMBLY MOTOR ASSEMBLY PUMP HOSE CONNECTOR CASING PUMP MOTOR ASSEMBLY PUMP SERVICE PARTS STATOR ASSEMBLY SENSOR ASSEMBLY ROTOR ASSEMBLY SPRING HINGE HOLDER GASKET GUIDE WATER CONNECTOR MECH HOSE BELLOWS CLAMP ASSEMBLY CHAMBER AIR HOSE INLET HOSE CONNECTOR SERVICE PARTS DUCT OUTLET DUCT OUTLET MOTOR ASSEMBLY FAN Page 65 of 68 TRAINING MANUAL Loc No Description M120 5209ER0002B DUCT ASSEMBLY M121 5200ER3001A PIPE M130 5214ER4001C HOSE INLET M210 4 6931FR3108A THERMOSTAT ASSEMBLY M215 4036FR4045A SEAL M220 5301FR2076G HEATER ASSEMBLY M230 6322FR2046C THERMISTOR ASSEMBLY M235 6322FR2046J THERMISTOR ASSEMBLY M240 6901ER4001A FUSE ASSEMBLY M260
9. ESD NOTICE Some of the electronic in appliances are electrostatic discharge ESD sensitive ESD can weaken or damage the electronics in these appliances in a manner that renders them inoperative or reduces the time until their next failure Connect an ESD wrist strap to a ground connection point or unpainted metal in the appliance Alternatively you can touch your finger repeatedly to a ground connection point or unpainted metal in the appliance Before removing a replacement part from its package touch the anti static bag to a ground connection point or unpainted metal in the appliance Handle the electronic control assembly by its edges only When repackaging a failed electronic control assembly in an anti static bag observe these same precautions REGULATORY INFORMATION This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined
10. O WM3677 COMBO Page 9 of 68 TRAINING MANUAL WATER CIRCULATION The recirculation pump circulates the water during most of the cycle During the WASH cycle it runs continuously for 3 minutes and then intermittently throughout the cycle During the RINSE cycle it runs continuously as soon as the appropriate amount of rinse water has been added This recirculated water enters the drum at the top of the door at a small shower head This spray not only keeps the window and gasket clean it allows the clothes to be soaked with detergent or rinse water more quickly and can be used to control an oversudsing event PARTS IDENTIFICATION Front of COMBO Shipping Bolts 7 Power Plug ET 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 Drain Hose rain Hose Water Circulation Dispenser Drum Door z Ww Adjustable Feet Drain Plug Drain Pump Filter WM3677 COMBO Page 10 of 68 TRAINING MANUAL Back of COMBO Cold Water Inlet Air Vent for Safety Hot Water Inlet The air vent must be left open and clear at all times If the combo is installed in a closet or closed laundry alcove there must be sufficient clearance and ventilation The closet should h
11. Page 23 of 68 TRAINING MANUAL DIAGNOSIS and CHECK LIST Abnormal Operation continued SYMPTOM CALL Suds overflow from the _ Isalow sudsing detergent used appliance In this condition wash and spin do not operate normally FD LOW SUDSING Is the proper amount of detergent used as recommended Recommend to reduce the amount of detergent This appliance has an automatic suds sensing function which prevents overflow x When excessive suds are sensed the suds removing implementations such as drain water input pause will operate without rotating the drum Liquid laundry products do not 15 liquid laundry product put in the correct flow in compartment of the dispenser m uw 2 1 Liquid chlorine Bleach Cempariment 2 Liquid fabric Softener Compartmant m _ 8 Prewash Compartmont 4 Main Wash Compartment Explain proper use of liquid laundry products o Men M eomm Clean the compartment c n LE AR Visit to service LE Gees WM3677 COMBO Page 24 of 68 TRAINING MANUAL FAULT DIAGNOSIS and TROUBLESHOOTING NO POWER Check tha fuse or reset the circuit breaker Is the voltage between the 2 FILTER ASSEMBLY Replace
12. Compartment 3 Prewash Compartment 4 Main Wash Compartment Is the softener bleach cap clogged YES Clean the Cap and Container ABNORMAL SOUND Is the motor bolt loosened Secure the bolt Replace the STATOR ASSEMBLY or ROTOR ASSEMBLY 15 there friction noise coming from the motor WM3677 COMBO Page 28 of 68 TRAINING MANUAL HEATING WITHOUT WATER When pressing SPIN SPEED and SOIL LEVEL at the same time after draining is the water level frequency 2557 When pressing SPIN SPEED and SOIL LEVEL buttons NO atthe same time while washing is the water level frequency between 230 243 Replace the SENSOR SWITCH ASSEMBLY Check the voltage between two pins while pressing the POWER button ls the voltage 120 V AC DRAIN MALFUNCTION Is the drain hose twisted or frozen Repair the DRAIN HOSE ASSEMBLY Remove foreign material Reconnect or repair the connector Is the impeller of the drain pump clogged Is the connector disconnected disassembled Replace the DRAIN PUMP ASSEMBLY Is the coil of the drain pump too high or low resistance of the coil is 10 20 Replace the MAIN PWB ASSEMBLY When checking voltage between connectors during spin is the voltage 120V AC as in the figure
13. Page 38 of 68 TRAINING MANUAL FRONT CABINET COVER 1 Remove the four screws from the top edge of the front cabinet cover 2 Remove the screw behind the filter cover 3 Use a putty knife or screwdriver on both sides one at a time of the filter cover and pull it out 4 Remove the screw that was hidden by the filter cover 5 Open the COMBO door 6 Use the special gasket pliers part 383EER4001A to remove the gasket clamp spring assembly See photo page 66 P M WM3677 COMBO Page 39 of 68 TRAINING MANUAL 7 Tilt out the cabinet cover 8 Disconnect the door switch connector Don t forget it when you put the cover back on 9 Lift the cabinet cover front off and set it aside where it will not fall or be damaged 10 Remove the gasket clamp on the tub side 11 Remove the gasket M WM3677 COMBO Page 40 of 68 TRAINING MANUAL 1 Open the door 2 Remove the seven screws from the hinge cover 3 Put a flat screwdriver into the hinge opening and gently pry off the hinge cover 4 Remove the screw from the lower hinge pin 5 Lift the door off the hinge BE CAREFUL The door is heavy DOOR LOCK SWITCH ASSEMBLY 1 Open the door 2 Using the
14. by pulling out the hose cap Listen for a click to determine if the door is unlocking DO P P PP WM3677 COMBO Page 19 of 68 TRAINING MANUAL ERROR CODES e f you press START PAUSE when an error code is displayed the error code will disappear and the COMBO will go into PAUSE status Exception PE e nacase of PE or dE if the error is not resolved within 20 seconds the COMBO will power OFF Inthe case of any other error code if the error is not resolved within 4 minutes the COMBO will power OFF e Inthe case of FE the COMBO will not power off Correct water level 246 is not reached within 8 minutes verat CES after water is supplied or it does not reach the preset water level within 25 minutes The load is too small IMBALANCE o appliance is tilted o E 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 OVER FLOW x If FE is displayed the drain pump will operate to drain the water automatically PRESSURE SENSOR Door not all the way closed DOOR OPEN IA Loose electrical connections at Door switch and PWB Assembly The DOOR SWITCH ASSEMBLY is out of order HEATING EE T
15. by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment to an outlet on a different circuit than that to which the receiver is connected or consult the dealer or an experienced radio TV technician for help DISCLAIMER Every effort has been made to create a training manual free from defects In the event of corrections or updates the most current manual will be available online via LG CS Academy See page 2 COMPLIANCE The responsible party for this device s compliance is LG Electronics Alabama Inc 201 James Record Road Huntsville AL 35824 WM3677 COMBO Page 4 of 68 TRAINING MANUAL INTRODUCTION The 2005 lineup of LG Washers and Dryers includes the WM3677HW Combo The control panel is on the front of the machine The COMBO is different in that it has all the features of our regular washing machine plus a condenser dryer built into the same housing The washing machine functions like our standard washer The condenser dryer works by condensing the moisture from the air circulating in the tub and expelling it via the drain hose In simplest terms the dryer fan blows air across a 1 000 watt elect
16. the FILTER Connectors 120 V AC ASSEMBLY Replace MAIN PWB Reconnect NO Replace the MAIN PWB Replace DISPLAY PWB or repair wire P WM3677 COMBO Page 25 of 68 TRAINING MANUAL VIBRATION and SPIN NOISE 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 is stable Put an unbalance part inside the drum and start QC test mode and run in high spin Refer to section 7 2 When the machine is spinning at high speed verify that it is stable If you do not have the unbalance part put 5 to 7 Ibs 2 to 3 kg of clothing Once loaded press power Rinse Spin and the start pause button in sequence When the machine is spinning at high speed verify that it is stable WM3677 COMBO Page 26 of 68 TRAINING MANUAL Is water supply shut off e E Is the tap opened Open the tap When you press both SPIN SPEED button and SOIL LEVEL button simultaneously
17. the thermistor at the white connector Pull the thermistor out by the bracket REMOVAL OF FOREIGN OBJECTS BETWEEN TUB and DRUM WM3677 COMBO Page 52 of 68 Remove the front cover Remove the heater from the tub Use a long bar or a wire to fish out anything that could be in the space there TRAINING MANUAL BALL SENSOR Unbalance Switch The BALL SENSOR is so named because it contains a small ball covering an even smaller hole The ball rests so it blocks the light from the LED Ep emitting iah above from shining through the hole to E Vio the phototransistor below If the tub moves enough to strike the the ball is CASE moved temporarily from its resting place allowing the light to trigger the hototransistor This in turn causes HOLE the drum rotation to stop and then TR light sensing attempt to rebalance the load The sensor assembly is bolted to the back of the washer near the bottom The tub surrounding the drum is suspended on springs and dampers to allow some motion while the drum rotates However if the load is out of balance and the tub moves too far out of place a tab on the tub will strike the ball sensor black hose connects the air chamber to the water level switch If this hose fails or is broken off its connector the COMBO will continue to fill because the sensor does not detect an increase in water level
18. to cycle through the test modes Sp Turns on all lamps and locks the door Inlet valve for main wash tums on Inlet valve for hot water turns on Inlet valve for bleach turns on Circulation pump turns on Water level frequency 25 65 HOW TO CHECK THE WATER LEVEL FREQUENCY Press the SPIN SPEED and SOIL LEVEL buttons simultaneously The digits indicate the water level frequency x 1 kHz So a display indicating 241 a Water level frequency of 241 x 1 kHz 24 1 kHz M WM3677 COMBO Page 18 of 68 TRAINING MANUAL Always test the COMBO for proper operation after installation and after any repairs or adjustments are made Use this flow chart Press the POWER button Press the Start Pause Listen for a click to determine if Check the water heating 5 Check the automatic function reverse rotation Press the WASHIRINSE button and the present temperature will be displayed Check if water is supplied Check if the drum rotates Check the drain and spin functions LL LILPROCESSING 7 Power off and the power on Press the SPIN SPEED button Press the START PAUSE button Check the spin and drain 7 START PAUSE button If SVC is needed during check remove the remaining water
19. 4860ER3002A CLAMP M310 4738ER2005A BELLOWS M311 4860FR3092A CLAMP M312 4860FR3092A CLAMP 383EER4001A GASKET PLIER SPECIAL TOOL 383EER4003A DAMPER PLIER SPECIAL TOOL 383EER4004A GASKET PLIER SPECIAL TOOL o214FR3018D DRAIN HOSE EXTENSION 5 FEET Special tool set for front loader washers The Putty knife is used only for the Columbus Series The stamped wrench Is included with the washer E WM3677 COMBO Page 66 of 68 TRAINING MANUAL this page intentionally blank 2005 LG Electronics Inc Printed in the USA
20. 6 of 68 TRAINING MANUAL eee MAIN BOARD The main board controls all the functions of the COMBO All the sensors in the machine report to the main board and the microprocessor makes all adjustments based on sensor input There are no panel controls for such things as water level or washing time because these are determined via fuzzy logic based on the selected cycle and sensor input The main board is potted into a plastic case to protect it from vibration and water It cannot be repaired and must be replaced as an assembly The connectors on the main board are color coded See Wiring Diagram page 58 and are unique It is not possible to cross the connectors They identifiable by pin count conductor count and shape as shown on the diagram Two less common color abbreviations on the diagram are SB Sky Blue and NA Natural which is cream or white MOTOR FUSE DISPLAY a Ie 12 4 HALL EFFECT EATERS THERM 1 ISTORS AE 5 INLET VALVES ES 1j 5 y m DRYER VALVE d DOOR SWITCH MOTOR BALL PRESSURE CONTROL CONTROL PANEL WM3677 COMBO Page 57 of 68 TRAINING MANUAL WIRING DIAGRAM wusmecowas LL wuosenawas
21. 73N F225 5006ER3014B F226 5006ER3018A F227 3891ER2003A F300 4925ER1015B F310 4738ER1004B F315 4738 2002 F321 5214ER4001A F322 5214ER4001B F323 5214ER4001J F430 5215ER2002G F431 4932FR3156A F432 3W50712A F435 5214FD3663E F436 5214FR4125S F440 5214FR3188K F441 4861FR3068C F461 4861FR3068E F462 4861FR3068A F463 4860FR3092D F464 4860FR3092C F465 4860FR3092D F466 4861FR3068E F467 4860FR3092C F468 4861FR3068E K105 3045ERO0008K WM3677 COMBO Description MAIN PWB PCB ASSEMBLY MAIN PWB PROTECTIVE COVER FILTER ASSEMBLY CIRC BRACKET ASSEMBLY SENSOR ASSEMBLY DISPLAY PWB PCB ASSEMBLY PWB HARNESS FLAT CABLE MOTOR HARNESS MOTOR HARNESS VALVE ASSEMBLY INLET VALVE ASSEMBLY INLET CONTROL PANEL ASSEMBLY KNOB ASSEMBLY DRAWER PANEL ASSEMBLY CAP SOFTENER CAP SIPHON BOX ASSEMBLY DETERGENT DISPENSER ASSEMBLY BELLOWS BELLOWS HOSE INLET HOSE INLET HOSE INLET DRAIN HOSE ASSEMBLY CONNECTOR MECH DRAIN HOSE HANGER ASSEMBLY PIVOT HOSE DRAIN HOSE INLET HOSE PUMP CLAMP CLAMP CLAMP CLAMP CLAMP CLAMP CLAMP CLAMP CLAMP TUB ASSEMBLY OUTER Page 64 of 68 TRAINING MANUAL Loc No K110 3045ER1006A K111 4433 1001 K115 4434 0001 121 4280FR4048L 122 4280FR4048E K123 4040FR4051C K125 4036 2004 K130 4866ER1013A K131 1SZZER4002A K135 4866ER0004A K140 3551 0003 141 40836ER4001B K143 4011FA4353B K310 6322FR2046F K311 4036FR4050A K311 4036
22. Dry Fan Motor is out of order Replace the fan motor M M DO WM3677 COMBO Page 21 of 68 TRAINING MANUAL sss DIAGNOSIS and CHECK LIST Abnormal Operation GUIDE FOR SERVICE CALL 15 the power plug connected firmly to 120 V AC outlet Power failure or Breaker opened Is the outlet controlled by a switch Visit to service Water inlet trouble Is displayed m YES Is the tap opened YES Is the tap frozen NO A Is the water supply shut off Is filter in the inlet valve clogged with Clean the filler of foreign material M inlet valve Ce Visit to service continued on next page TE WM3677 COMBO Page 22 of 68 TRAINING MANUAL DIAGNOSIS and CHECK LIST Abnormal Operation continued SYMPTOM Door error Drain trouble im WM3677 COMBO GUIDE FOR SERVICE CALL Started with door opened Clicking sound is heard once or twice when the START PAUSE button is pressed to start the cycle Check if the door switch is OK Is displayed YES 15 the drain pump filter clogged with foreign material such as pins coins etc Is the drain hose frozen kinked or crushed Visit to service continued on next page
23. ER3025L 002 3890EZ3524A 003 3W20018B 004 3828ER3027G A100 3091ER0004A A101 3808FR1202A A102 4830ER3001A A103 4930ER3014A A104 4011FR3159E A105 4011FR3159D A110 3457EH1006A 111 4810ER3021A A130 93551ER0023A A131 4930ER4005A A133 2W20017E 140 4775ER2002A 141 4930ER4018A A150 3581ER1008A 151 3212 1023 A152 3212EH1016A A153 3650ER2004A 154 4026ER4004A A155 3650FA3488M A200 3041ER0001C A201 4810ER3006A A220 4779ER3002A A275 5215FD3715G A276 5215FD3715H A300 3110ER2003A A303 5006FR3146D A310 5006ER2003E A410 6601ER1006E A430 6411ER1005K A440 6601ER1004C WM3677 COMBO PARTS LIST Description OWNERS MANUAL BOX WRENCH SERVICE MANUAL CABINET ASSEMBLY BACK COVER BUSHING HOLDER BOLT ASSEMBLY BOLT ASSEMBLY TOP PLATE ASSEMBLY HINGE BRACKET CABINET COVER ASSEMBLY HOLDER CLAMP ASSEMBLY HINGE ASSEMBLY HOLDER DOOR ASSEMBLY INNER DOOR FRAME INNER DOOR FRAME HANDLE LATCH HOOK HANDLE CABINET BASE ASSEMBLY BASE BRACKET LEG ASSEMBLY INLET HOSE INLET HOSE CASE DRAIN HOSE CAP DRAIN COVER SENSOR SWITCH ASSEMBLY POWER CORD ASSEMBLY DOOR SWITCH ASSEMBLY Page 63 of 68 TRAINING MANUAL Loc No A450 6871ER1003E A455 3550ER1020A A485 6201EC1006A A490 4811ER3001A A495 6501FA2462C F110 6871 1116 F120 6877EH1023J F130 6850EC2001D F140 6877ER1016B F145 6877ER3003B F160 5220FR2008E F170 5220FR2006H F210 93721ER1126D F215 4941ER3002A 220 3721ER10
24. NNCE EG H PRESSURE SWITCH TUBE AIR CHAMBER M D O M WM3677 COMBO Page 50 of 68 TRAINING MANUAL PUMP 1 Remove the cabinet front 2 Hemove the pump hose the bellows and the circulation hose from the pump body 3 Remove the two screws on the front plate 4 Push the pump backward and lift it out See drawing Drain Pump Circulating Pump The drain pump and the circulating pump are attached to either side of the filter housing The drain pump is used to exhaust the water from the washer recirculating pump serves three purposes it sprays water from the tub onto the laundry creating a better saturation of detergent and better rinsing it keeps the window clean and it allows the customer to see water in the tub The filter are between the pumps is not a lint filter in the traditional since It serves to trap larger objects keys coins buttons etc that may find their way into the washer and protects the pumps from physical damage PP WM3677 COMBO Page 51 of 68 TRAINING MANUAL Remove front cover Separate the connectors from the heater element Remove the nut also the ground connection and pull the heater out THERMISTOR Remove the front cover Disconnect
25. OMBO Page 12 of 68 TRAINING MANUAL 5 Hot water tap Be sure the rubber washer is inside the hose end Attach the hoses to the COMBO red is HOT blue is COLD Tighten them firmly but don t strip the plastic threads on the washer connections DRAIN Laundry tub The drain pipe should be firmly attached to the standpipe or the laundry tub or sink where it drains The pump has sufficient power to cause the pipe to move around when the water is expelled The pump can lift the drain water a maximum of 96 inches but there is no minimum height requirement The hose can lay flat into a floor drain as long as the end of it is not submerged ELECTRICAL The COMBO requires 120 VAC 60 Hz on a dedicated 20 amp circuit OM O WM3677 COMBO Page 13 of 68 TRAINING MANUAL CONTROL PANEL The control panel is located on the front of the COMBO All options are available from the control panel apio e saago worn SOP ACC Apogeo TEADA Lis sepi SUL OL Spp sapo uogdo siu uap pur vondo sr esp ujd eesug pur sanum
26. ONTROL PANEL Unplug the COMBO before disassembly and repair TOP PLATE ASSEMBLY 1 Remove the two screws on the top of the back plate 2 Slide the top plate backward and lift it as shown 3 Disconnect the Display PWB connectors 3 connectors 4 Remove the dispenser drawer Remove the two screws behind the dispenser drawer 6 Lift off the left side of the Control Panel and pull it out 7 Remove the nine screws secure the PWB 8 Hemove the PWB 9 Heassembly is the reverse of these steps M WM3677 COMBO Page 35 of 68 TRAINING MANUAL MAIN PWB 1 Disconnect the POWER connector and the SENSOR SWITCH assembly 2 Hemove the protective cover by lifting the plastic clips around the top and sides 3 Disconnect all the connectors Note that they are all different shapes and colors to prevent any mistakes upon replacement See photo page 57 4 Remove the screw on the back 5 Remove the MAIN PWB from the COMBO Slide it to the right and then lift 6 Heassembly is the reverse of these steps O WM3677 COMBO Page 36 of 68 TRAINING MANUAL DISPENSER 1 Hemove the top plate 2 Hemove the dispenser 3 Hemove the two screws from th
27. Rotor doesn t need electricity Brush abrades and Mo brush replacement needs replacement WM3677 COMBO Page 42 of 68 TRAINING MANUAL MOTOR continued This motor is a 36 pole DC direct drive motor There are 12 magnets permanently attached to the rotor Each magnet is opposite 3 poles of the stator at any given time A Hall Effect sensor is mounted on the stator It counts the poles of the magnets as the rotor turns to feedback the information to the controller motor controller can determine the direction and speed of rotation by adjusting the polarity and amplitude of the power applied to the stator HALL EFFECT 7 SPACES SENSOR e frm a E i 4 An oa 4 1 HALL CONN CTOR Th 14 WM3677 COMBO Page 43 of 68 The Hall Effect sensor is easily removed and replaced You ll have to remove the rotor and stator to access the sensor The rotor is splined and fits snugly on the drum s shaft When replacing the rotor you will probably need a helper to hold the drum in place while you push the rotor onto the shaft Otherwise the drum may move forward far enough to make it difficult to replace the bolt The helper can also keep the drum from turning w
28. SEMBLY Red 3 pin Yellow 4 pin and white 3 pin connector 1 Is there clicking sound once or twice when the START PAUSE button is pressed to start the cycle Replace the DOOR Is DOOR SWITCH ASSEMBLY broken SWITCH ASSEMBLY YES dHE ERROR CODE Is the resistance of thermistors on dry duct Replace the thermistor 2 5 180kQ at 100 C 0 C 6322FR2046C Dry Duct CHECK FOR DRY HEATER TROUBLE O WM3677 COMBO Page 33 of 68 TRAINING MANUAL DRYER MALFUNCTION Disassemble the cabinet cover and condensing bellows Is there any foreign object in the condensing bellows Clean the bellows Disassemble the dry fan assembly and dry duct upper and remove foreign objects in duct and fan DRYER HEATER MALFUNCTION After power off is the resistance of dry heater 10 4007 Replace the dry heater Is thermostat closed Replace the thermostat Replace the thermal fuse Is thermal fuse cut When checking voltage between connectors D Q on drying is the voltage AC 110 V as the figure Blue connector wire color 1 YELLOW 0 BLACK Replace the PWB ASSEMBLY MAIN Hepair instructions are on page 55 WM3677 COMBO Page 34 of 68 TRAINING MANUAL _ DISASSEMBLY and REPAIR C
29. ation in this training manual is intended for use by persons possessing an adequate background in electrical equipment electronic devices and mechanical systems In any attempt to repair a major appliance personal injury and property damage can result The manufacturer or seller maintains no liability for the interpretation of this information nor can it assume any liability in conjunction with its use When servicing this product under no circumstances should the original design be modified or altered without permission from LG Electronics Unauthorized modifications will not only void the warranty but may lead to property damage or user injury If wires screws clips straps nuts or washers used to complete a ground path are removed for service they must be returned to their original positions and properly fastened CAUTION To avoid personal injury disconnect the power before servicing this product If electrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks Also be aware that many household appliances present a weight hazard At least two people should be involved in the installation or servicing of such devices Failure to consider the weight of an appliance could result in physical injury DO NOT allow children to play in the COMBO drum While the door latch is designed to open by only pulling the door can not be opened from the inside if the COMBO is turned on
30. ave a full louvered door with at least 800 square inches of open area for ventilation The COMBO requires a space of at least 1 inch between the wall and the machine on each side and at least 4 inches between the back of the washer and the wall Additional space may be needed for servicing ACCESSORIES The COMBO comes with the two input hoses The blue stripe is for cold water and the red stripe is for hot water While the hoses are mechanically identical it is critical to the performance of the COMBO to have the hot and cold hoses connected correctly Us LT Hot Cold 1 each Wrench to secure drain hose to standpipe Hose inlet hose or laundry tub The wrench is used to remove and replace the shipping bolts and to adjust the leveling feet Be sure to leave it and encourage the customer to retain the wrench the four shipping bolts and the manual in a safe place in the event the washer requires service or the customer moves The shipping bolts MUST BE REMOVED before operating the COMBO MM MO M WM3677 COMBO Page 11 of 68 TRAINING MANUAL INSTALLATION REMOVE THE SHIPPING BOLTS Save the bolts in case the washer needs to be moved for service The wrench can be used to adjust the leveling WM3677 C
31. e front of the dispenser 4 Hemove the clamp and the large hose on the back of the dispenser Leave the small feed hoses on the dispenser 6 Disconnect the electrical connectors on the valves The connector and wire colors will aid upon reassembly T Remove the two screws that secure the cold water valve assembly 8 Heassembly is the reverse of these steps Valve Assembly Wire Connector Chart Connector Wire Dispenser valve opened 1 BLUE Yellow and Black dryer water cold 2 WHITE White and Black main wash cold 3 BLUE Gray and Black pre wash cold 4 RED Blue and Black hot input 5 WHITE Orange and Black bleach cold dispense softener both the main and pre wash solenoids are opened oee page 16 for details O D WM3677 COMBO Page 37 of 68 TRAINING MANUAL NOISE FILTER 1 Unplug the power connection from the MAIN PWB 2 Disconnect the two connectors from the power cord 3 Hemove the screw and ring i I connector for the ground the screw and any wires other than the ground for the noise filter 4 Hemove the screw securing the noise filter to the frame of the COMBO 5 is the reverse of these steps M WM3677 COMBO
32. es CHILD LOCK This feature keeps the kids from pressing buttons and changing the settings during operation M P PMM P DO O WM3677 COMBO Page 8 of 68 TRAINING MANUAL FUZZY LOGIC To get the best washing performance the user selects one of the standard cycles and sensors in the COMBO make an infinitely variable number of adjustments as the cycle progresses Adjustments are made for load size incoming water temperature soil level rinses required and other variables water temperature washing time the best rinsing time washing performance spin rhythm time SENSING PROCESSING DOOR The door has an automatic electrically operated lock system When the machine is off or paused the door can be opened by puling it When the machine is operating the electric latch keeps the door closed The door cannot be opened When the COMBO is operating When the power failed or the washer is unplugged until the capacitor discharges and releases the lock When the DOOR LOCK light is on e When the drum is still turning DOOR LOCKED LAMP The DOOR LOCK lamp lights When the COMBO is operating e When the water level sensor frequency is lower than 22 9 kHz When the temperature inside the tub is over 45 C 113 F MM M
33. he THERMISTOR is out order continued on next page WM3677 COMBO Page 20 of 68 TRAINING MANUAL CURRENT ERROR MAIN PWB ASSEMBLY is out of order Winding in the STATOR ASSEMBLY is short circuited 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 male white in the MOTOR HARNESS MOTOR puc and 4 pin female white connector in the MAIN PWB ERROR H ASSEMBLY is bad or unstable The MOTOR HARNESS between the STATOR ASSEMBLY and MAIN PWB ASSEMBLY is cut open circuited hall sensor is out of order defective Loose Ball Sensor Connector 40 BALL SENSOR Ball Sensor is out of order ERROR Displayed only when the START PAUSE button is first pressed in the QC Test Mode E EEPROM is out of order EEPROM Displayed only when the START PAUSE button is first ERROR pressed the QC Test Mode POWER The washer experienced a power failure FAILURE DRY HEATER EN The Dry Heater is out of order ERROR LIU Replace the Dry Heater The connector of the Dry Heater is not connected properly to the connector in the main PWB ASSEMBLY Reconnect or repair the cannector The
34. hile you torque the bolt Before going to this trouble check the connector on the main board It is the 3 pin red connector nearest the heat sink This connector has the red wire in the middle instead of on one end You can separate this connector to determine that the board is receiving signals from the Hall Effect sensor wrong connector it is the yellow one near the top TRAINING MANUAL MOTOR continued Remove the back cover Remove the large bolt 17 mm from the center of the rotor Pull the rotor off the shaft You may have to wiggle it off The shaft is splined When replacing it you may need a helper to keep the drum from being pushed forward so the bolt will reach and can be tightened Remove the two screws from the tub bracket Remove the six bolts on the Stator Remove the two electrical connectors on the stator The dampers 3 support the tub at the bottom it is supported by two springs at the top by the gasket the front Use special tool 383EER4003A See photo pages 47 and 66 Hold in the locking tab so the pin will slide out DAMPER 2 S NSS 9 1 WM3677 COMBO Hemove the damper hinge pins A special tool is available for this Using a deep well socket makes this easier by holding down the locking tab so the pin slides out easily the damper with a new part Do not reuse a damper that has been disa
35. http us lgservice com WASHER DRYER COMBO TRAINING MANUAL A CAUTION READ THIS MANUAL CAREFULLY BEFORE DIAGNOSING OR SERVICING THIS PRODUCT Customer Service and Part Sales 800 243 0000 Technical Support and Part Sales 800 243 0000 USA Website us lge com Customer Service Website us lgservice com B2B Service Website aic lgservice com LG CS Academy Igcsacademy com Published September 2005 by LG Technical Support Service WM3677COMBO Washer Dryer Contents 3 Safety Notices and Warnings 4 OVERVIEW 5 Introduction opecifications 6 Serial Numbers 7 Features 8 INSTALLATION 12 Preparation 12 Connections 13 Water 13 Electrical 13 Drain 13 OPERATION 14 Control Panel 14 Program Chart 15 Dispenser 16 TROUBLESHOOTING 18 Test Mode 18 Checking Water Level Frequency 18 Test Flow Chart 19 Error Codes 20 Diagnosis and Check List 22 DISASSEMBLY and REPAIR 35 Control Panel 35 Main PWB 36 Dispenser 3 Noise Filter 38 Front Cabinet Cover 39 Door and Door Lock Switch 41 Motor 42 Damper 44 Tub Removal and Repair 45 Water Level Switch 50 Pumps Drain and Circulating 51 Water Heater and Thermistor D2 Hemoval of Foreign Objects Between Tub and Drum 52 Ball Sensor Unbalance switch 5 Dryer Repair 55 57 WIRING DIAGRAM 58 EXPLODED VIEWS 59 PARTS LIST 63 T WM3677 COMBO Page 3 of 68 TRAINING MANUAL IMPORTANT SAFETY NOTICE The inform
36. is the water Check the AIR CHAMBER and the tube clogged Clean the filter Replace the INLET VALVE ASSEMBLY level frequency below 246 5 the inlet valve filter clogged Is resistance between each terminal of INLET VALVE ASSEMBLY 0 8 1 2 Verify the voltage of the inlet valve connector is 120 V AC Refer to 7 2 QC TEST MODE Check electrical connection Replace the MAIN PWB ASSEMBLY Prewash SR Refer to NO WATER SUPPLY Is water supplied Are receptacles correctly connected to the terminals of the INLET VALVE ASSEMBLY YES Put the detergent in the correct place Has detergent been put in the correct compartment NO of the dispenser Detergent Is the detergent caked or hardened YES gt Clean the dispenser 4 ni 1 Liquid chlorine Bleach Compartment 2 tabric Sohenor Compartmont 3 Prowash Compartmert 4 Mann Wash Compariment 3 2 EEE WM3677 COMBO Page 27 of 68 TRAINING MANUAL LIQUID DETERGENT BLEACH SOFTENER DO NOT DISPENSE Is water supplied Refer to NO WATER SUPPLY Are the plugs correctly connected to the terminals Check the wiring the the INLET VALVE ASSEMBLY dispenser Put it in the correct compartment Is softener bleach put in the correct compartment of the drawer 4 3 2 1 Liquid chlorine Bleach Compartment 2 Liquid fabric Softener
37. nge was made This chart will help you decode the serial number Sequential Number 00001 99999 Product Code Number Month of Manufacture Year of Manufacture Example 8 5 K W 00251 Manufactured Unit 00251 Manufactured in Korea Manufactured in May Manufactured in 1998 M P M OP D WM3677 COMBO Page 7 of 68 TRAINING MANUAL KEY FEATURES DIRECT DRIVE MOTOR The advanced brushless DC motor drives the drum directly without a belt or pulleys TILTED DRUM amp LARGE DOOR The 10 tilt and large door opening make it easy to load and unload the combo WATER CIRCULATION The detergent solution in the drum is recirculated and sprayed repeatedly The clothes are soaked more quickly during the wash cycle Suds are eliminated by the water shower during the rinse cycle The recirculation system uses water and detergent more efficiently ROLLER JETS The baffles in the drum include roller balls to enhance washing performance and reduce wear on clothing The jets lift water and drizzle it throughout the wash load for better fabric care AUTOMATIC LOAD DETECTION The COMBO automatically detects the size of the wash load and optimizes the washing performance via fuzzy logic BUILT IN HEATER The internal heater automatically heats the water to the optimum temperature on selected cycl
38. off the dryer duct 2 Disconnect all the electrical connections from the dryer duct 9 Hemove the two screws that secure the dryer fan housing to the back of the cabinet 4 Lift the dryer fan housing and duct off from the back end to clear the cabinet The studs will pull free and you can remove the heater assembly 5 Hemove the two screws that hold the condenser duct to the back cabinet If you haven t drained the water from the tub this would be a good time to do it 6 Disconnect the condenser boot on the tub end This will aid disassembly and assembly because it easier to reach O WM3677 COMBO Page 55 of 68 TRAINING MANUAL Dryer Repair continued 7 Release the clamp and remove the dryer water supply hose at the solenoid end Lift out the condenser duct assembly Be careful to avoid damaging the boot 8 Leave the hose in the duct end If this comes out you must first fit the gasket into the hole in the duct with the smaller side of the gasket facing the duct Then insert the hose connector and rotate it 90 to lock it in place 9 Dryer reassembly is the reverse of these steps Test and diagnostic procedures are shown on pages 33 34 BM WM3677 COMBO Page 5
39. rgent has already been dispensed in an earlier part of the cycle this is of no consequence If liquid detergent is added to the pre wash box it will run immediately into the tub This doesn t affect the operation of the cycle To use liquid detergent in the main wash place the detergent siphon box in the main wash compartment Otherwise the main wash liquid detergent will run into the tub along with the pre wash detergent causing oversudsing in the pre wash and no cleaning in the main wash The siphon boxes are designed to hold a liquid laundry product until the appropriate time for dispensing into the load When the box fills with water it begins to discharge its contents into the washer fill stream Once the siphon action has started it will continue until the siphon box has emptied itself Use only regular viscosity bleaches and softeners the ultra versions are usually thicker and do not dispense well if at all By the end of any cycle water will have run through all of the dispenser compartments preventing any cross contamination of subsequent loads OO MOOM A WM3677 COMBO Page 17 of 68 TRAINING MANUAL TEST MODE The COMBO must be empty and off to enter TEST MODE 1 Press and hold the SPIN SPEED and SOIL LEVEL buttons 2 Press the POWER button The buzzer will sound twice 3 Press START PAUSE repeatedly
40. ric warming element and into the drum as the damp clothes tumble Since warm air absorbs more moisture than cold air this air stream absorbs moisture from the clothing as it passes though the drum The moist air is then directed through the condensing duct where a fine mist of cold water keeps the duct cool The moisture in the air condenses and precipitates to the drain pump where it is expelled through the drain hose This dried air is then blown across the warming element and the cycle repeats itself Because the air is recirculated no vent stack is necessary This dryer takes longer than a conventional dryer but allows both washing and drying in one machine Drying time will likely be the most frequent complaint with the COMBO When used as a washing machine the combo will wash a large load However when used as a dryer it will dry a load only half the size of the maximum wash load This is because the clothes need more room to tumble to allow the air to flow through as they dry Notice the dryers at the Laundromat have twice the capacity of the washers Similarly the LG dryer DLG5988 7 3 cu ft has twice the capacity of the washer WM2277HW 3 7 ft To use the drying function effectively the user must fill the COMBO no more than half full of laundry to dry the load after washing This is NOT a product defect The COMBO can be used as a washer only or as a dryer only in addition to being able to both wash and dry clothe
41. s help turn the clothes over and the baffle fills up with water as the drum rotates allowing it to shower that water out as it continues to rotate 20 reassembly is basically the reverse of these steps WM3677 COMBO Page 49 of 68 TRAINING MANUAL WATER LEVEL SWITCH The water level detector switch monitors the water level and feeds this information to the MICOM The sensor reads air pressure in an air chamber on the tub The air pressure changes in relation to the depth of the water moving a diaphragm in the switch As the water level fluctuates it raises or lowers the iron center in the coil which in turn changes the electric resonance of the oscillator circuit of which it is a part As water level decreases frequency increases e g A low water level may read 25 5kHz while a high water level may read 21 4 kHz These readings are approximate washers in the field may vary slightly from these figures To read the frequency while the COMBO is running press and hold the SPIN SPEED and SOIL LEVEL buttons The number on the display should be divided by 10 to obtain the frequency reading in kHz A display of 254 would indicate a frequency of 25 4 kHz The MICOM interprets the frequency reading as one of eight levels with one being the lowest water level and any level greater than eight indicating an overflow situation HIGEST LEVEL 21 4 kHz LOWEST LEVEL OUTER TUB 25 5 kHz Bd HG
42. s in just one cycle To wash clothes without drying simply do not select a drying option To dry clothes without washing press the ON button and DO NOT SELECT a wash cycle instead press the DRY button to cycle through the dryer options If you move the large control knob and select a wash cycle turn the machine off and back on and then choose a dry cycle as described above M P PPM M WM3677 COMBO Page 5 of 68 TRAINING MANUAL SPECIFICATIONS Color Wash Capacity Dry Capacity Power Supply Washing Drain Motor Fan Motor Dry Heater Wash Heater Drum Speed Wash Spin Water Pressure Motor Water Heater Temperature Settings Cycle Programs Energy Consumption Spin Speed Max RPM Water Circulation WM3677 COMBO Page 6 of 68 WM3766HW White Black Titanium 3 22 cu ft t3 3 72 ft IEC Max 11 lbs 8 120 VAC 60 Hz 5 Amps 280 W 80 W 25 W 1 200 W 1 000 W 42 rom 0 1 200 rpm 4 5 145 psi 31 1000 kPa Direct Drive Yes 5 7 27 W x 31 D 51 with door open x 39 H 201 Ibs 9 hours 46 rom 1 200 rom Yes TRAINING MANUAL SERIAL NUMBER IDENTIFICATION The serial number is unique to each product It gives information concerning the time and place of manufacture The serial number is required to be paid for warranty service and to get the correct part in the event a running production cha
43. se clogged Reconnect or repair 5 the connector disconnected disassembled the connector Connector Is the of the right side of drain pump open or short circuited Coil R is 18 30 Q Replace PUMP MOTOR ASSEMBLY When checking voltage between the connectors during spin is the voltage 120 V AC as the figure Replace the MAIN PWB ASSEMBLY PWB ASSEMBLY MAI P WM3677 COMBO Page 31 of 68 TRAINING MANUAL SPIN MALFUNCTION Check during spin if the frequency of the water level is 248 or more Press the START PAUSE button 2 times in QC Test mode is the drum spinning at low speed Is it disconnected or disassembled Red 3pin 1 NA 4pin 2 Check the motor connector 15 the resistance of the terminal the same as the figure MOTOR TERMINAL Resistance of terminal About 5 0 15 Check the SENSOR SWITCH ASSEMBLY or HOSE Pressure If the problem is on the SENSOR SWITCH ASSEMBLY or the HOSE replace the SENSOR SWITCH ASSEMBLY or the HOSE Normal Correct the connection Replace the STATOR ASSEMBLY Replace the MAIN PWB ASSEMBLY WM3677 COMBO Page 32 of 68 TRAINING MANUAL dE ERROR CODE Does the spring of Latch Hook actuate Replace Door Assembly Check the DOOR SWITCH ASSEMBLY Connector and MAIN PWB AS
44. special pliers remove the gasket clamp 3 Remove the screws 4 Pull the switch out and disconnect the wiring harness NOTE Be sure you reconnect the wires when you replace the switch EEL WM3677 COMBO Page 41 of 68 TRAINING MANUAL A l MOTOR The direct drive motor is a brushless DC motor built on the shaft of the drum The elimination of belts and pulleys allows greater efficiency and reliability with less noise and vibration The use of direct current allows the MICOM to control both the speed and the direction of rotation There are no brushes to wear away as in a conventional electric motor Unlike a more traditional brushless motor the Direct Drive s rotor surrounds the stator rather than being attached to it A Hall sensor reports the motor s speed to the MICOM DIRECT DRIVE MOTOR Commisie Cad Pal _ Universal AC Motor BLDC Motor Direct Drive Motor Poema ut T Multi coiled EA Stator Permanent magnet Rotor Permanent magnet Rotor and Multi coiled Stator are big and powerful enough to replace the pulley to rotate the collad Rotor t need a Brush Powerful amp Reliable control Minimum vibration amp noise Optimum energy consumption Brush makes Friction Moises No Friction Moises e Coiled rotor needs electricity
45. ssembled TRAINING MANUAL p TUB REMOVAL AND REPAIR Removing the tub requires that you first remove the control panel and the front panel The front panel can be removed without removing the door See previous pages for this procedure When the front has been removed it is easy to remove the tub Remove the counterweights first to make this job easier Regardless most of this procedure will require a helper OQ O 1 Remove the bolts retaining the A Hidden weights 4 per weight N 2 Set the weights aside where they will not fall and break or cause injury 8 Bolts The weights balance the motor when removing the tub If you remove them the tub will be back heavy 3 Disconnect the wire lead to the thermistor 4 Disconnect the wires on the heating element 5 Remove the center bolt securing the ground and the element 6 Pull the element out carefully B WM3677 COMBO Page 45 of 68 TRAINING MANUAL TUB REMOVAL AND REPAIR continued 1 WM3677 COMBO Page 46 of 68 10 Remove the back cover Six screws Remember to drain the water if you haven t already done it Remove the large bolt securing the rotor This is much easier if there is an assistant available to hold the drum s
46. till on the inside while loosening the bolt Extreme torque is not required when replacing the bolt instead use a drop of Loctite Use extreme caution This part holds the motor s permanent magnets Disconnect the electrical connections and grounding screw Remove the 6 bolts that hold the windings in place Disconnect the small hose that attaches to the water level sensor Disconnect the dryer duct hose Disconnect the drain hose on the back of the pump Disconnect the recirculating hose at the top of the door gasket Disconnect the air vent hose Be especially careful of the ball check valve It must be replaced correctly to function properly Disconnect the vacuum break TRAINING MANUAL X TUB REMOVAL AND REPAIR continued 11 Remove the clamp where the dryer duct connects to the gasket Separate the gasket and duct for when the tub comes out This will allow the dryer assembly to remain in place when the tub comes out 12 gt Remove the three dampers that support the tub BE CAUTIOUS Separated dampers must be replaced Press in the tab on the small end and use the pliers to push the pin out It is easiest to remove the bottom pin first After removing the drum the pin on the other end is easy to reach if it must be removed at all 13 Use special tool 383EER4003A
47. to remove the pins Press the security tab in to push the pin through Attach the larger metal end to the drum and the smaller plastic piston end to the frame of the COMBO Insert the pins from the front on the two side dampers and from the right on the rear damper WM3677 COMBO Page 47 of 68 TRAINING MANUAL WM3677 COMBO Page 48 of 68 Open the spring clip on each side where the spring supports the tub Lift the springs out of the holders and take the tub out through the front of the COMBO This may require a helper Separate the tub halves to remove the drum Remove the bolts around the circumference of the tub Do not use a screwdriver or other sharp instrument to pry the halves apart The bearing is visible in this photo Do not disturb the seal gasket between the tub halves unless it requires replacement TRAINING MANUAL TUB REMOVAL AND REPAIR continued 18 gt Remove two bolts from the end on the spider of the drum Then remove the screw on the outside of the drum Squeeze the sides of the baffle slightly to release the positioning tabs 19 Repairing or replacing the roller Jet baffle requires removing the drum Remove the three screws that secure the inner part Lift it out and remove the six glass roller balls The roller ball

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