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WM2277 WASHER

PAGE 80 of 84

TRAINING MANUAL

Содержание WM2277H Series

Страница 1: ...LG TRAINING MANUAL WM2277H Washing Machine Fall 2007 LG TRAINING MANUAL ...

Страница 2: ...ing Legs 14 Pedestal Kit 15 Connections Water Drain Electricity 17 Control Panel 18 Option Buttons and Option Chart 19 Control Panel Full explanation of all controls 20 Program Cycle Chart 21 Dispenser 22 Direct Drive Motor 24 Hall Effect Sensor 25 Hall Effect Sensor Test Procedure 26 Test Mode 31 Water Level Frequency Test 31 Error Display 32 Diagnosis and Check List 34 No Power 34 Water Inlet Is...

Страница 3: ...ntinuous overheating 42 No Water Circulation some models 43 Spin Malfunction 44 Disassembly and Repair 45 Block Wiring Diagram and Main Board 45 Control Panel 46 Main Board 47 Dispenser 48 Noise Filter 48 Front Cabinet Tub and Drum 49 Door 52 Pump s 53 Heater 55 Thermistor 55 Removal of foreign object between drum and tub 56 Motor 57 Damper Suspension 58 Water Level Switch 59 Tips and Tricks 60 Ma...

Страница 4: ...control board the flat cable the owner s manual and the tub size SPECIFICATIONS Item WM2277H Color W White B Black S Titanium Power Input 120 VAC 60 HZ Weight 190 lbs 86 kg Washing 280 W Drain Motor 80 W Electric Power Consumption Water Heater 1000 W Wash 42 rpm Drum Speed Spin 0 1150 rpm Options Prewash Stain cycle Extra Rinse Rinse Spin Delay wash Water Plus Cycles 7 Wash Rinse temperatures 5 Op...

Страница 5: ...ed of 1 150 RPM extracts more water from the laundry reducing drying times TILTED DRUM and 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 Th...

Страница 6: ... machines need no more than 2 tablespoons of powdered or 1 ounce of liquid detergent for a load Overuse of laundry products will reduce efficiency and cause buildup and odors in the machine Use fabric softener sparingly We suggest no more than 2 teaspoons per load Be careful when using the Ultra or X tra concentrated brands because very thick or highly viscous liquids do not dispense properly You ...

Страница 7: ...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 Eventually serial numbers will all be migrated to this new format which includes a sequential production number...

Страница 8: ...r has an automatic 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 washer 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 ...

Страница 9: ...rgent or rinse water more quickly and can be used to control an oversudsing event The recirculation pump is separate from the drain pump but they are attached to opposite sides of the filter housing The pump s and filter are located at the bottom left front corner The filter can be unscrewed cleaned and replaced Earlier versions include a recirculation pump later versions do not Use the small drai...

Страница 10: ...WM2277 WASHER PAGE 12 of 84 TRAINING MANUAL PARTS IDENTIFICATION Front of Washer Back of washer ...

Страница 11: ...blue stripe is for cold water and the red stripe is for hot water The hoses are NOT mechanically identical it is critical to the performance of the 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 ma...

Страница 12: ...rea Cut the straps and lift off the box Check the packing materials for manuals and accessories before discarding them Notice the wrench packed in the foam shipping base This will be used to level the legs and to remove the shipping bolts Be sure to remove the foam block from the base of the washer ...

Страница 13: ... one of the bolts has a retainer clip for securing the cord This is another way to encourage the removal of the shipping bolts The power cord is taped to the back of the machine with a sticker reminding the installer or customer to remove the shipping bolts before installing or using the washer It is imperative that these bolts be removed if they remain in place serious damage will result when the...

Страница 14: ... or lower it You can lock the adjustment into place by tightening the lock ring against the underside of the washer Use a spirit level to adjust the feet to make the washer level You may have to adjust more than one foot to get the desired results The legs must be firmly against the floor and the washer must be level in all directions front to back left to right and corner to corner Proper levelin...

Страница 15: ...ions 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 ad...

Страница 16: ...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 If you are stacking the dryer on top of the washer ...

Страница 17: ... can withstand higher temperatures and pressures 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 preven...

Страница 18: ...ustom Program Set the controls for a special cycle that you use often then press and hold this button to set that cycle Then use this button every time you wish to use your special custom cycle Delay Wash Set the cycle controls and then press this button up to 12 times to delay the start of the cycle for up to 12 hours Wash Rinse Selects one of the wash and rinse temperature combinations available...

Страница 19: ...to any cycle Press and hold until the machine beeps to adjust the spin speeds lower to decrease vibration WATER PLUS Press to add up to one gallon extra water to the wash and rinse cycles To select the optional feature follow the instructions in parentheses OPTION CHART MAX WATER TEMP Extra Hot 158 F Hot 122 F Warm 104 F Cold 77 F SPIN SPEED Extra High 1 150 High 980 Normal 960 Low 600 SOIL LEVEL ...

Страница 20: ...WM2277 WASHER PAGE 22 of 84 TRAINING MANUAL WM2277 Control Panel New Version ...

Страница 21: ... on the control panel Some options are locked out on some cycles for example you cannot select EXTRA HOT WASH on a DELICATE CYCLE or EXTRA HIGH SPIN on PERMANENT PRESS BEFORE PERFORMING SERVICE Be careful to avoid electric shock when disconnecting parts for troubleshooting Most terminals in the washer have 120 VAC or VDC on them sometimes even when the washer is off Spinning the drum by hand even ...

Страница 22: ...re wash detergent main wash detergent fabric softener and bleach Powdered or liquid detergents may be used but softener and bleach must be liquids Detergents must carry the HE designation Do not use regular detergents in the washer or oversudsing will occur We recommend using NO MORE THAN 2 TABLESPOONS of powdered HE detergent or NO MORE THAN 1 OUNCES of liquid HE detergent The top of the dispense...

Страница 23: ...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 cleaning in the main wash The siphon boxes are designed to hold a...

Страница 24: ...nector that powers the stator and another that connects to the hall sensor When reassembling the motor these connectors must be reassembled before the stator is mounted Stator Resistance Readings Pins 1 3 5 15Ω Pins 2 3 5 15Ω Pins 1 2 5 15Ω The DC 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 aro...

Страница 25: ...the drum in place when you push the rotor onto the shaft Otherwise the drum may move forward enough to make replacing the bolt difficult The helper can also hold the drum from turning while you tighten the bolt Before going to this trouble check the connector on the main board The motor connector is the red one closest to the heat sink Pull the connector off and verify the board is receiving a sig...

Страница 26: ...ves wiring terminal designation See the diagrams below The correct wiring terminal colors are White is Gray is Red is Hb Blue is Ha The correct depiction is shown left and the incorrect depiction is shown right Also see photo page 29 Correct Incorrect Pay particular attention to the color codes and the position numbers in the connectors This will be critical when you take voltage readings to deter...

Страница 27: ...ut 4 to 2 pulsing 10 Vdc Signal Output Note Ohm values are approximate if the ohm check determines either resistor open hall sensor has failed and must be replaced 1 BL Ha 2 RD Hb 3 Not Used 4 GRY 5 WH Hall Sensor testing methods are now available on the following pages when LE error code troubleshooting says hall sensor is out of order or defective Test FIRST Terminal Designation Ohm Voltage Spec...

Страница 28: ...leads on terminals 5 to 4 white to gray 5 Plug in the power cord close the door and press the power button DO NOT PRESS START 6 You should measure 10 to 15 Vdc If 10 to 15 Vdc is present the control board is OK If not follow the testing output voltages on control board in next section 7 To measure output signal voltage from the hall sensor carefully move test leads to terminals 4 gray to 1 blue Sl...

Страница 29: ...ay 10 to 15 vdc Gray to Blue pulsing 10vdc Gray to Red pulsing 10vdc Note If 10 Vdc from gray to blue or gray to red does not change pulse that resistor is open Confirm by disconnecting the power disconnecting the hall sensor connector on the main board and ohm check that individual circuit With power disconnected and the connector disconnected the hall sensor can be tested ohmmetrically from Whit...

Страница 30: ...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 ba...

Страница 31: ...T PRESS START 9 Place your meter leads on the WHITE and GRAY wires You should read 10 15 VDC output from the main board to the hall sensor If 10 15 VDC are not observed the main board is defective 10 Place your meter leads on the BLUE and GRAY wires Turn the motor rotor slowly by hand You should measure a pulsing 10 VDC Place your meter leads on the RED and GRAY wires Turn the motor rotor slowly b...

Страница 32: ...vel freq 25 65 8 Tumble clockwise rpm 40 50 9 Heater on for 3 seconds water temperature C 10 Circulation pump runs water level freq 25 65 11 Drain pump runs water level freq 25 65 12 Power off unlock door All lamps off The EPROM check sum will be displayed at the beginning of the test The checksum will indicate the model number and the program on the main board 1F 61 WM2677H M CHECK THE WATER LEVE...

Страница 33: ...pt PE will disappear and the machine will enter PAUSE mode In the event of PE tE or dE The power will be turned off within 20 seconds and the error code will blink In the event of any other error code the power will be turned off after 4 minutes If the error code is FE the power will NOT be turned off continued on next page ...

Страница 34: ...WM2277 WASHER PAGE 35 of 84 TRAINING MANUAL ERROR DISPLAY continued ...

Страница 35: ...WM2277 WASHER PAGE 36 of 84 TRAINING MANUAL DIAGNOSIS and CHECK LIST Abnormal Operation ...

Страница 36: ...WM2277 WASHER PAGE 37 of 84 TRAINING MANUAL DIAGNOSIS and CHECK LIST Abnormal Operation continued ...

Страница 37: ...WM2277 WASHER PAGE 38 of 84 TRAINING MANUAL DIAGNOSIS and CHECK LIST Abnormal Operation continued ...

Страница 38: ...WM2277 WASHER PAGE 39 of 84 TRAINING MANUAL FAULT DIAGNOSIS and TROUBLESHOOTING ...

Страница 39: ...WM2277 WASHER PAGE 40 of 84 TRAINING MANUAL DIAGNOSIS TROUBLESHOOOTING continued ...

Страница 40: ...WM2277 WASHER PAGE 41 of 84 TRAINING MANUAL DIAGNOSIS TROUBLESHOOOTING continued NO WATER SUPPLY DETERGENT NOT DISPENSED ...

Страница 41: ...WM2277 WASHER PAGE 42 of 84 TRAINING MANUAL DIAGNOSIS TROUBLESHOOOTING continued LIQUID SOFTENER AND BLEACH ARE NOT DISPENSED ...

Страница 42: ...WM2277 WASHER PAGE 43 of 84 TRAINING MANUAL DIAGNOSIS TROUBLESHOOOTING continued ...

Страница 43: ...WM2277 WASHER PAGE 44 of 84 TRAINING MANUAL DIAGNOSIS TROUBLESHOOOTING continued HEATER MALFUNCTION CONTINUOUS OVERHEATING ...

Страница 44: ...GNOSIS TROUBLESHOOOTING continued Before conducting this diagnostic procedure be sure your version includes the recirculation pump The pump housings are not interchangeable and this option cannot be added to a version not so equipped at the factory ...

Страница 45: ...WM2277 WASHER PAGE 46 of 84 TRAINING MANUAL DIAGNOSIS TROUBLESHOOOTING continued ...

Страница 46: ... disassembly repair replacement of parts and reassembly 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 47: ...3 Remove the detergent drawer 4 Remove two screws behind the detergent drawer 5 Disconnect the connectors 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 8 Remove eight screws to separate the control panel and PWB 9 Reassembly is the reverse of these steps ...

Страница 48: ...stic tabs out of the way to remove the cover The main board is potted so no repairs are possible Replacement is the only option 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 ...

Страница 49: ...ector from the solenoid Make a note of the color codes and connections 1 Blue yellow black bleach 2 White white black main 3 Blue white black pre wash 4 Red blue black wires hot They should measure 120 VAC 10 or 950 975 Ω with the harness disconnected 6 Remove two screws from the back of the cabinet DISASSEMBLY REPAIR Noise Filter 1 Remove the connectors from the noise filter 2 Remove the screw fr...

Страница 50: ... the top so you ll need to use an extra push to get the top plate loose 1 Remove the top plate See page 46 2 Remove the control panel See page 46 3 Remove four screws that secure the front panel 4 Remove the screw that secures the filter cover Be sure to drain the water See page 9 5 Use a flat screwdriver or a putty knife to loosen the filter cover and pull it out 6 Stick the screwdriver into the ...

Страница 51: ...e glass The door is HEAVY 10 Disconnect the door switch connector Remember to replace it upon reassembly See page 52 11 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 12 Separate the spring retaining clip so you can lift the tub out of the cabinet Be careful and make sure you have disconnected every wire and hose to ...

Страница 52: ...the tub as supports to hold the tub while you work on it and to avoid damaging the shaft and floor 14 Unbolt the tub halves to separate them and remove the drum Be careful to avoid damaging the gasket between the halves or it must be replaced Do not pry on the mating surfaces of the drum halves ...

Страница 53: ...at screwdriver 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 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 yo...

Страница 54: ...ss down the plastic tab on the base behind the pump to slide the pump assembly backward You don t have to worry if you break the tab It is there for the assembly process in the factory A screw holds the pump housing in place when the washer is assembled Just slide it into the bracket 6 You can tilt the pump in either direction to remove replace the individual pumps without having to remove the tub...

Страница 55: ...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 Depending upon which version you have the washer may not have a circulating pump the pump on the right and the corresponding electrical and plumbing connections The pump housings are very similar ...

Страница 56: ...st slide in to its bracket which is attached to the rear half of the tub Proper positioning is critical Note the drum half seam near the bottom of photo The heater runs on 120 VAC Ohm check is 14 Ω DISASSEMBLY REPAIR Thermistor 1 Remove the front cabinet See page 46 2 Drain the water from the sump See page 9 3 Unplug the white connector 4 Hold the bracket and pull the thermistor out The thermistor...

Страница 57: ...4 TRAINING MANUAL DISASSEMBLY REPAIR Object between tub and drum 1 Remove the top cover See page 46 2 Remove the front cabinet cover See page 48 3 Remove the heater See page 55 4 Fish out the foreign object s using a wire or bar ...

Страница 58: ...bolt in the center shaft Your helper can hold the inside of the drum 3 Pull the rotor off the shaft 4 Remove two screws from the tub bracket 5 Remove six bolts on the stator 6 Unplug two connectors on the stator 7 Pull the stator off the shaft 8 When re installing the clamps and the ground screw must be installed and the connectors pressed into place before the rotor is bolted onto the shaft ...

Страница 59: ... end allows the head end to pass through while the pin is pushed out The color and or appearance of the damper 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 ...

Страница 60: ...t 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 Press DELAY WASH and BEEPER simultaneously The display will indicate the water level frequency Multiply by 0 1 to get the frequency in kilohertz For example a r...

Страница 61: ...thout having to remove the drum Unscrew the retaining 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 VALVE 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 See the parts li...

Страница 62: ...r to make a more complete diagnosis and eliminate some of the time required to disassemble and check various components For example the hall sensor can be tested by removing the connector at the main board and following the procedure on page 26 DRAINING THE SUMP Pull out the little hose and remove the end cap Allow the water 16 32 ounces to run into a shallow pan Do not pull the hose so far out it...

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Страница 65: ...WM2277 WASHER PAGE 66 of 84 TRAINING MANUAL EXPLODED VIEW ...

Страница 66: ...59D Shipping Bolt Assembly Long A106 4011FR3159F Shipping Bolt Assembly Long with cord clip A110 3457ER1006L Plate Assembly Top incl hinges A111 4810ER3021C Bracket Hinge 2 required A130 3551ER0023C Cover Assembly Cabinet A131 4930ER4005A Holder stud A133 2W20017E Clamp Assembly Outer Gasket A140 4775ER2002A Hinge Assembly A141 4930ER4018A Holder stud A150 3581ER1008J Door Assembly A151 3212ER1023...

Страница 67: ... F220 3721ER1187H Panel Assembly Drawer Dispenser F225 5006ER3014B Siphon Cap Softener F226 5006ER3018A Siphon Cap Bleach F227 3891ER2003A Siphon Box Detergent F300 4925ER1015B Dispenser Assembly F310 4738ER1004B Bellows F315 4738ER2002A Bellows F321 5214ER4001A Hose Inlet Main Wash F322 5214ER4001B Hose Inlet Pre Wash and Hot 2 required F323 5214ER4001J Hose Inlet Bleach F430 5215ER2002G Hose Ass...

Страница 68: ...K143 4011FA4353B Bolt Stator 6 required K310 6322FR2046F Thermistor NTC K311 4036FR4050A Gasket K320 5301FR1158J Heater Assembly K340 4681EA2001D Drain Pump Motor Assembly AC K342 5214FR4006L Hose Connector K344 3108ER1001B Casing Pump K345 4681EA2001C Recirculating pump earlier models K346 383EER2001A Parts Assembly K350 4417FA1994G Stator Assembly K351 6501KW2002A Sensor Assembly K360 4413EA1002...

Страница 69: ... 383EER4004A Gasket Pliers Inner SPECIAL TOOL 5241FR3018D Drain Hose Extension 5 FEET 4769ER4002A Mushroom valve fill tube not pictured 4769ER4001A Mushroom valve vent tube not pictured Special tool set for front loader washers The putty knife is used only on models with the controls on the top at the back of the machine The stamped wrench is included with the washer ...

Страница 70: ...y We suggest you check for bulletins before servicing a product to get all the latest information These bulletins are of particular significance in that they cross reference parts that are used in one version or the other For instance control panel is different Although it may appear identical the options have changed Similarly the main board has changed to accommodate these options The pump housi...

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Страница 82: ...2007 WM2277H Washer Training ...

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