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LG WM2496*M Series Скачать руководство пользователя страница 38

WM2496H*M

Page 38 of 58

TRAINING MANUAL

DISASSEMBLY/REPAIR

(Main Board)

Often, you can diagnose a failed part by removing its connector on the main
board and connecting the tester to the leads in the connector. (See page 51.)

1.

Disconnect the POWER

connector and the Water Level

Sensor Switch.

2.

Remove the protective cover.

Press the plastic tabs out of the

way to remove the cover. The

main board is potted, so no

repairs to it are possible. You

can remove connectors to test

various components without

having to disassemble the

washer at this point. To

continue, remove the pressure

sensor and wire holders on

the cover and set it aside.

3.

Disconnect the connectors on

the main board. They are all

different, keyed, and color-

coded to prevent incorrect

connection.

4.

Pull the wires out of the way.

5.

Remove one screw on the back

of the washer to release the

main board housing.

6.

Remove the main board by

sliding it to the right and lifting

it up. Press it to the back and

left to replace it.

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Содержание WM2496*M Series

Страница 1: ...Digital Appliance WM2496 Washer Training Spring 2007 Service TRAINING MANUAL ...

Страница 2: ...10 Door Locked Lamp 10 Water Circulation 11 Parts Identification Callout 12 Accessories 13 Remote Monitor and Modem 14 Installation 15 Pedestal 16 Connections 18 Water 18 Drain 18 Electrical 18 Program Chart 19 Before Performing Service 19 Dispenser 20 Test Mode 22 Check Water Level Frequency 22 Error Display Error Codes 23 Diagnosis and Check Lists 25 Door Error 25 Drain Error 25 Oversudsing 26 L...

Страница 3: ...alfunction Continuous Overheating 33 No Water Circulation 34 Spin Malfunction 35 dE Error Code 35 Disassembly and Repair 36 Block Wiring Diagram 36 Top Plate 36 Control Panel 37 Main Board 38 Dispenser 39 Noise Filter 39 Front Cabinet Cover 40 Door 42 Door Switch Removal 42 Pumps Drain and Circulation 43 Heater 44 Thermistor 44 Removal of Objects Between Tub and Drum 45 Motor 46 Tub and Drum 48 Da...

Страница 4: ...ol The WM2496 machines are specifically designed to be sold as a stacked product and the dryer is delivered with the control panel mounted at the bottom of the dryer This causes the washer and dryer control panels to be adjacent when the products are installed and stacked Of course they can be installed in a standard side by side configuration with the dryer controls mounted at the top of the drye...

Страница 5: ...WM2496H M Page 5 of 58 TRAINING MANUAL SPECIFICATIONS ...

Страница 6: ...f 1 150 RPM extracts more water from the laundry reducing drying times TILTED DRUM LARGE DOOR The tilted drum 10 and large door opening allow easier loading and unloading ROLLER JETS and BALLS The baffles pick up water as the drum turns and allow it to pour through the clothing as it tumbles The balls enhance the washing performance while maintaining fabric care AUTOMATIC LOAD DETECTION The microp...

Страница 7: ...onitor displays the cycle and remaining time on the washer and dryer It can be plugged in to any outlet in the house DISPLAY and CONTROLS The control panel is located on the front of the WM2496 Washer All options are available from the control panel Extra Hot 167 F Hot 122 F Warm 104 F Cold 77 F Extra High 1 150 High 980 Normal 960 Low 600 SOIL LEVEL adds time to wash and spin cycles STAIN CYCLE a...

Страница 8: ...WM2496H M Page 8 of 58 TRAINING MANUAL WARRANTY ...

Страница 9: ...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 change was made Some models may have four 4 letters instead of two 2 for the product code number The third and fourth letters are significant only to the manufacturing facility This chart will help you decode the serial number ...

Страница 10: ...atic electrically operated lock system When the machine is off or paused the door can be opened by pulling it When the machine is operating the electric latch keeps the door closed The door cannot be opened When the WM2496 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 When the drum is still turning ...

Страница 11: ...ng event The recirculation pump is separate from the drain pump but they are attached to opposite sides of the filter housing When the sanitary cycle is used the door will remain locked until the laundry has cooled to a safe temperature below 45 C 113 F The pumps and filter are located at the bottom left front corner The filter can be unscrewed cleaned and replaced by opening the small cover Use t...

Страница 12: ...aundry alcove there must be sufficient clearance and ventilation The closet should have a full louvered door with at least 350 square inches 0 5 m2 of open area for ventilation The washer requires a space of at least 1 inch 2 5 cm between the wall and the machine on each side and at least 4 inches 10 cm between the back of the washer and the wall Additional space may be needed for servicing ...

Страница 13: ... washer to have the hot and cold hoses connected correctly 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 washer ...

Страница 14: ...event you need to remove the modem for some reason The socket should be covered at all times While you re at it go ahead and install the modem on the dryer now Remove the cover and install the modem on the back of the dryer Save the small socket cover and screws in the event you need to remove the modem for some reason The socket should be covered at all times After installation is complete plug i...

Страница 15: ...5 of 58 TRAINING MANUAL INSTALLATION REMOVE THE SHIPPING BOLTS INSTALL THE WASHER ON A FIRM FLAT SURFACE ADJUST THE FEET TO BE LEVEL If you re installing the washer on a pedestal install the pedestal now See next page ...

Страница 16: ...ns form the shipping carton Set the pedestal as close to the installation position as possible 2 Level the pedestal on a flat solid floor before proceeding Lock down the rear adjusters but leave the front ones free for now 3 Note which holes are for the washer and which are for the dryer If you are stacking the appliances the washer must be on the bottom 4 Remove the protective paper from the adhe...

Страница 17: ...adhesive away from the appliance insert the screws and get them started Then press the brackets to the appliance and tighten all the screws Rub the bracket from side to side to ensure a complete bond 7 Use the wrench to turn each leg of the appliance approximately turn to put a little pressure between the appliance and the pedestal This will eliminate any rattles 8 It is usually easier to set the ...

Страница 18: ...strength DRAIN 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 2 4 m but there is no minimum height requirement The vacuum breaker in the drain line will prevent drainage by gravity or siphoning The h...

Страница 19: ...estimates shown here are for the basic cycles before the fuzzy logic adjustments are made BEFORE PERFORMING SERVICE Be careful to avoid electric shock when disconnecting parts for troubleshooting Most terminals in the WM2496 washer have 120 VAC or DC on them sometimes even when the washer is off The built in water heater operates at a high temperature ...

Страница 20: ...nd 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 washer or oversudsing will occur Regular detergents also cause a scum build up in the tub which leads to poor performance and a foul odor If this build up cannot be removed by running a TUB CLEAN cycle the washer requires a comp...

Страница 21: ...his is of no consequence If liquid detergent is added to the pre wash box it will run immediately into the tub This does not 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 ...

Страница 22: ...EL 2 Press POWER 3 Press START PAUSE to cycle through the test modes See chart CHECK SUMS WM2277H 1F 81 WM2077CW 1F 82 WM2177H 1F 81 WM2677H M 1F 61 CHECK THE WATER LEVEL FREQUENCY The numbers shown in the display indicate the water level frequency Divide the number in the display by 10 to get the reading in kHz ex Display is 241 so the reading is 24 1 kHz ...

Страница 23: ...played except PE and the machine will PAUSE If the error code PE tE or DE is not cleared within 20 seconds the machine will power OFF Error code FE will NOT cause the machine to power OFF Any error code not listed will power the machine OFF if it is unresolved after 4 minutes continued on next page ...

Страница 24: ...WM2496H M Page 24 of 58 TRAINING MANUAL ERROR CODES Continued ...

Страница 25: ...WM2496H M Page 25 of 58 TRAINING MANUAL DIAGNOSIS and CHECK LIST Abnormal Operation ...

Страница 26: ...WM2496H M Page 26 of 58 TRAINING MANUAL ...

Страница 27: ...WM2496H M Page 27 of 58 TRAINING MANUAL FAULT DIAGNOSIS and TROUBLESHOOTING NO POWER ...

Страница 28: ...M Page 28 of 58 TRAINING MANUAL NOISE and VIBRATION DURING SPIN If the washer is properly leveled and there is still a vibration caused by resonance at a particular speed see SpinSense on page 29 of this manual ...

Страница 29: ...past the load sensing portion of the program 2 The selected spin speed will have an LED lit in the button 3 Press and hold the SpinSense button for over three seconds It is the Stain Cycle button on the right end of the control panel You will hear two quick beeps when the button is pressed and a long beep when the control takes effect 4 The spin button of the selected cycle will blink if SpinSense...

Страница 30: ...WM2496H M Page 30 of 58 TRAINING MANUAL NO WATER SUPPLY DETERGENT DOES NOT FLOW IN See DISPENSER page 20 ...

Страница 31: ...WM2496H M Page 31 of 58 TRAINING MANUAL LIQUID SOFTENER and BLEACH DO NOT FLOW IN See DISPENSER page 20 ABNORMAL SOUND ...

Страница 32: ...WM2496H M Page 32 of 58 TRAINING MANUAL HEATER OPERATION WITHOUT WATER DRAIN MALFUNCTION ...

Страница 33: ...WM2496H M Page 33 of 58 TRAINING MANUAL WASH HEATER MALFUNCTION HEATER MALFUNCTION CONTINUOUS OVERHEATING ...

Страница 34: ...WM2496H M Page 34 of 58 TRAINING MANUAL NO WATER CIRCULATION ...

Страница 35: ...WM2496H M Page 35 of 58 TRAINING MANUAL SPIN MALFUNCTION dE ERROR CODE ...

Страница 36: ...isassembly repair replacement of parts and re assembly Many times electrical components may be tested by connecting the appropriate meter to the leads or connectors on the main PC Board Refer to the block wiring diagram below Proper diagnosis will eliminate unnecessary labor and expedite repairs BLOCK WIRING DIAGRAM ...

Страница 37: ... Remove the detergent drawer 4 Remove two screws behind the detergent drawer 5 Disconnect the connector for the Display PWB 6 Remove one screw from the corner of the control panel 7 Lift the top away from the support rail and pull the control panel up and away to remove control panel not exactly as pictured 8 Remove eight screws to separate the control panel and PWB 9 Reassembly is the reverse of ...

Страница 38: ...ard is potted so no repairs to it are possible You can remove connectors to test various components without having to disassemble the washer at this point To continue remove the pressure sensor and wire holders on the cover and set it aside 3 Disconnect the connectors on the main board They are all different keyed and color coded to prevent incorrect connection 4 Pull the wires out of the way 5 Re...

Страница 39: ...ispenser to the drum Have an old towel handy to stuff under the dispenser to soak up any spillage 5 Disconnect the connector from the solenoid Make a note of the color codes and connections 1 Blue yellow and black wires 2 White white and black wires 3 Blue gray and black wires 4 Red blue and black wires hot 6 Remove two screws from the back of the cabinet DISASSEMBLY REPAIR Noise Filter 1 Remove t...

Страница 40: ...oosen the filter cover and pull it out Stick the screwdriver into the cover slot and pry it out sideways to free it Then remove the screw behind the drain cover so you can lift the front cover off the machine 6 Drain the sump by pulling out the little hose by the filter cover Let the water maybe as much as a quart drain into a shallow pan Don t pull the hose out so far you kink it or the water wil...

Страница 41: ...l tool 383EER4001A See page 58 10 Lean the cabinet front forward being careful to avoid breaking the glass The door is HEAVY 11 Disconnect the door switch connector Remember to reconnect it upon reassembly 12 Lift the door and front cover off the cabinet base as an assembly Lay it face down on a blanket or some other protective surface ...

Страница 42: ...river 4 Remove the screw at the bottom of the hinge 5 Lift the door off the hinge CAUTION The door is HEAVY DISASSEMBLY REPAIR Door switch removal 1 Open the door 2 Remove the gasket clamp using special tool 383EER4001A See page 58 3 Remove the two screws holding the switch 4 Push the gasket aside to remove the switch 5 Unplug the switch to change it 6 Make sure the wires don t fall back in before...

Страница 43: ... backward and up 5 Press down the plastic tab on the base to slide the pump assembly backward This tab is for the convenience of the workers in the assembly plant It holds the pump in place while the machine is being built If you break it don t worry about it 6 You can tilt the pump in either direction to remove replace the individual pumps without having to remove the tub Have a towel handy to ca...

Страница 44: ...s 4 Remove the nut that holds the ground wire Then loosen but do not remove the nut that secures the heater clamp and pull the heater out You may have to wiggle it to release the gasket Be sure to pull the heater element STRAIGHT out to avoid damaging it DISASSEMBLY REPAIR Thermistor 1 Remove the front cabinet See page 40 2 Drain the water from the sump See page 40 3 Unplug the white connector 4 H...

Страница 45: ...rs 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 5 kHz 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 WM2496 is running press and...

Страница 46: ...elper can hold the inside of the drum DO NOT stick a screwdriver through the slots in the rotor 3 Pull the rotor off the shaft 1 Remove two screws from the tub bracket 2 Remove six bolts on the stator 3 Unplug two connectors on the stator 4 Pull the stator off the shaft 5 When re installing the clamps and the ground screw must be installed and the connectors pressed into place before the rotor is ...

Страница 47: ...oles on the stator and 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 A Hall Effect sensor determines the speed and direction of the motor It also can read that the load is off balance when the drum speed fluctuates eliminating the ball sensor found on previous m...

Страница 48: ...trol panel See page 37 4 Remove the front cabinet See page 40 5 Disconnect all hoses and electrical connections 6 Separate the three dampers See page 49 You can remove just one end of each damper now and the other one after the drum is out 7 Pry apart the spring retainer clip See photo left 8 Carefully lift the tub up off the springs and remove it from the machine 9 Unbolt the bolts around the cir...

Страница 49: ...ws the head end to pass through while the pin is pushed out The color and or appearance of the dampers may vary by model 3 Use special tool 383EER4003A to remove the damper pins If you are replacing the dampers you ll have to remove both ends If you are removing the tub for major repair work disconnect the damper ends at the base and leave the other ends connected until you remove the tub When put...

Страница 50: ...etaining screw at the back of the baffle Slide it toward the front of the washer to remove it You can unscrew the retainer inside the baffle to replace the roller balls MUSHROOM VALVES Be sure the mushroom is in place before attaching the hose If the stem is too long it will contact the drum and make significant noise when the drum turns You can trim it if necessary The valves are not shown on the...

Страница 51: ...WM2496H M Page 51 of 58 TRAINING MANUAL WIRING DIAGRAM ...

Страница 52: ...WM2496H M Page 52 of 58 TRAINING MANUAL EXPLODED VIEW Cabinet and Control Panel ...

Страница 53: ...WM2496H M Page 53 of 58 TRAINING MANUAL EXPLODED VIEW Drum and Tub Assembly ...

Страница 54: ...WM2496H M Page 54 of 58 TRAINING MANUAL EXPLODED VIEW Dispenser Assembly ...

Страница 55: ...ront Cabinet Cover A131 4930ER4005A Guide A133 2W20017E Gasket Clamp A140 4775ER2002A Hinge Assembly A141 4930ER4018A Guide A150 3581ER1008J Door Assembly A151 3212ER1023A Door Frame Inner A152 3212ER1016A Door Frame Outer A153 3650ER2004B Door Handle A154 4026ER4004A Door Latch Hook A155 3650FA3488M Hand Hold Cover 4 A200 3041ER0001C Base Assembly A201 4810ER3006A Base Leg Bracket A220 4779ER3002...

Страница 56: ...ner F226 5006ER3018A Siphon Cap Bleach F227 3891ER2003A Siphon Box Detergent Liquid F300 4925ER1015B Dispenser Assembly F310 4738ER1004B Bellows Water Input F315 4738ER2002A Bellows Air Vent F321 5214ER4001A Inlet Hose F322 5214ER4001B Inlet Hose F323 5214ER4001J Inlet Hose F430 5215ER2002G Drain Hose Assembly F431 4932FR3156A Drain Hose Connector Vacuum Break F432 3W50712A Drain Hose Hanger F435 ...

Страница 57: ...322FR2046F Thermistor NTC K311 4036FR4050A Gasket K320 5301FR1158J Heater Assembly K340 4681EA2001D Drain Pump Motor K342 5214FR4006L Recirculating Hose K344 3108ER1001A Pump Casing K345 4681EA2001C Recirculating Pump Motor K346 383EER2001A Filter Cover Assembly K350 4417FA1994G Stator Assembly K351 6501KW2002A Hall Effect Sensor Assembly K360 4413EA1002B Rotor Assembly K410 4970FR2084P Tub Suppor...

Страница 58: ...3EER4001A Gasket Plier Outer SPECIAL TOOL 383EER4003A Damper Plier SPECIAL TOOL 383EER4004A Gasket Plier Inner SPECIAL TOOL 5214FR3018D DRAIN HOSE EXTENSION 5 FEET 3W20018B Wrench 4769ER4001A Mushroom valve vent 4769ER4002A Mushroom valve fill ...

Страница 59: ......

Страница 60: ... Copyright 2007 LG Electronics Inc Printed in the USA ...

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