LG WM3987H Series Скачать руководство пользователя страница 28 | Manualshive

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27

WILL NOT CIRCULATE WATER

Is the impeller of the drain pump clogged?

Are the Hose Connector and/or Hose clogged?

Is the connector disconnected, disassembled?

Is the coil of the right side of drain pump open
or short circuited? (Coil R is 18-30

Ω

)

When checking voltage between the
connectors during spin, is the voltage

1

20V

AC, as the figure?

Remove foreign material.

Remove foreign material.

Reconnect or repair
the connector.

Replace PUMP MOTOR
ASSEMBLY.

Replace the MAIN PWB
ASSEMBLY.

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Содержание WM3987H Series

Страница 1: ...WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT Website http biz lgservice com MODEL WM3987H ...

Страница 2: ...NOV 2009 PRINTED IN KOREA P No MFL30138960 ...

Страница 3: ...ING SERVICE 14 7 2 QC TEST MODE 14 7 3 HOW TO CHECK THE WATER LEVEL FREQUENCY 14 7 4 ERROR DISPLAY 15 8 ERROR DIAGNOSIS AND CHECK LIST 17 8 1 DIAGNOSIS AND SOLUTION FOR ABNORMAL OPERATION 17 8 2 FAULT DIAGNOSIS AND TROUBLESHOOTING 20 9 DISASSEMBLY INSTRUCTIONS 31 10 EXPLODED VIEW 40 10 1 CABINET CONTROL PANEL ASSEMBLY 40 10 2 DRUM TUB ASSEMBLY 41 10 3 DISPENSER ASSEMBLY 42 10 4 DRYER 43 ...

Страница 4: ...OWER OFF CHILD LOCK RLM ENABLE ELECTRIC POWER CONSUMTION REVOLUTION SPEED WASHING DRAIN MOTOR WASH HEATER WASH SPIN 46 rpm 0 1200 rpm 9 5 5 Prewash Extra Rinse Stain Cycle Water Plus Drum Light Tub Clean SPINSENSETM Delay Wash Incorporated 14 5 116 psi 100 800 kPa Electronic 3 63 4 2 IEC 27 W X 293 4 D X 3811 16 H 5013 16 D door open up to 19 hours PTC Solenoid 10 steps by sensor Incorporated Inco...

Страница 5: ...minated more easily by the water shower during rinse cycle The water circulation system uses both water and detergent more efficiently RollerJets The washing ball enhances wash performance and reduces damage to clothing The jets spray and help tumble clothes to enhance washing performance while maintaining fabric care Automatic Wash Load Detection Automatically detects the load and optimizes the w...

Страница 6: ...operation When the cycle is completed the DOOR LOCKED light will turn off If a power failure has occurred while in operation the door will unlock after 5 minutes Clicking sounds can be heard when the door is locked unlocked 2 2 NEURO FUZZY WASHING TIME OPTIMIZATION To get the best washing performance optimal time is determined by the water temperature the selected washing temperature and the size ...

Страница 7: ...ASH button for 3 seconds to lock unlock control When Child lock is set CHILD LOCK lights and all buttons are disabled except the Power button You can lock the washer while it is operating 2 8 WATER CIRCULATION When Washing and Rinsing function of shower at the upper part of Gasket When Washing it continuously operates for 3 minutes and intermittently When Rinsing it continuously operates after com...

Страница 8: ...FICATION ACCESSORIES Wrench Tie strap Option to secure drain hose to standpipe inlet hose or laundry tub Hot Cold 1 each Hose Non skid pads Caps 4 for covering shipping bolt holes Elbow Bracket for securing drain hose ...

Страница 9: ...whether it functions correctly STANDARD INSTALLATION The appliance should be installed as follows REMOVE THE SHIPPING INSTALL THE APPLIANCE ADJUST THE BOLTS ON A FLAT AND FIRM SURFACE LEVELING Remove the 4 shipping bolts Turn the leveling feet to adjust with the supplied wrench the appliance Do first lower side to remove easily Keep the shipping bolts and spanner for future use Insert the 4 caps p...

Страница 10: ...lve connector Tighten the inlet hose securely to prevent leaks The end of the drain hose should be placed less than 100 cm from the floor Connect the power plug to the wall outlet Avoid connecting several electric devices as doing so may cause a fire Make sure that the hose is not twisted Avoid submerging the end of the hose ...

Страница 11: ...rotation 4 Check the water supply Check if water is supplied through the detergent dispenser 7 Check the drain and spin functions Power off and the power on Press the SPIN SPEED button Press the START PAUSE button Check the spin and drain functions 8 Press the START PAUSE button 9 Water removal If SERVICE is needed during check remove the remaining water by pulling out the hose cap 2 Press the POW...

Страница 12: ...11 5 WIRING DIAGRAM ...

Страница 13: ...S SE E S SP PI IN N C CO OT TT TO ON N N NO OR RM MA AL L Power Button Use this button to turn the power On Off Cycle Selector Knob Rotate theCycle selector knob to select the cycle designed for different types of fabric and soil levels Start Pause Use this button to Start Stop the washer Status Indicator It shows elapsed time of the cycle the washer is operating ...

Страница 14: ...ed on the type of load you are washing To change the spin speed press the Spin Speed button repeatedly to cycle through available options To change the soil level press the Soil Level button repeatedly until the desired setting is on DRY SELECTOR Dry program can be selected by pressing the DRY button By pressing the DRY button NORMAL MORE 30 60 90 120 LOW TEMP DAMP can be selected Option Button PR...

Страница 15: ...z 24 1 kHz The digits indicate the water level frequency x 1 kHz Number of times the Start Pause button is pressed Check Point Display Status None Turns on all lamps and locks the door 1 time Tumble clockwise rpm 2 times Low speed Spin rpm Water Level 3 times High speed Spin rpm Water Temperature 4 times Inlet valve for prewash turns on Water level frequency 25 65 5 times Inlet valve for main wash...

Страница 16: ...nutes after water is supplied or it does not reach the preset water level within 25 minutes The load is too small The appliance is tilted Laundry is gathered to one side Non distributable things are put into the drum 1 2 IMBALANCE ERROR Not fully drained within 10 minutes 3 DRAIN ERROR Water is overflowing water level frequency is over 213 If is displayed the drain pump will operate to drain the w...

Страница 17: ... cut open circuited The hall sensor is out of order defective 8 9 LOCKED MOTOR ERROR Loose Ball Sensor Connector Ball Sensor is out of order Displayed only when the START PAUSE button is first pressed in the QC Test Mode 10 BALL SENSOR ERROR The washer experienced a power failure 12 POWER FAILURE The Dry Heater is out of order Replace the Dry Heater The connector of the Dry Heater is not connected...

Страница 18: ...let trouble Is the power plug connected firmly to 120V AC outlet Power failure or Breaker opened Is the outlet controlled by a switch Visit to service Is displayed Is the tap opened Is the tap frozen Is the water supply shut off Is filter in the inlet valve clogged with foreign material Visit to service Clean the filter of inlet valve ...

Страница 19: ...18 SYMPTOM GUIDE FOR SERVICE CALL Door error Drain trouble Was the load too large Visit to service Visit to service ...

Страница 20: ...etergent Is liquid laundry product put in the correct compartment of the dispenser Is the cap clogged Explain proper use of liquid laundry products Clean the compartment Visit to service LOW SUDSING This appliance has an automatic suds sensing function which prevents overflow When excessive suds are sensed the suds removing implementations such as drain water input pause will operate without rotat...

Страница 21: ...re Check the fuse or reset the circuit breaker Replace the FILTER ASSEMBLY CIRC Replace MAIN PWB ASSEMBLY Reconnect Replace the MAIN PWB ASSEMBLY NO POWER 8 2 FAULT DIAGNOSIS AND TROUBLESHOOTING 1 Be careful of electric shock if disconnecting parts while troubleshooting 2 First of all check the connection of each electrical terminal with the wiring diagram 3 If you replace the MAIN PWB ASSEMBLY re...

Страница 22: ...er inside of drum and start QC test mode and run in high spin Refer to section 7 2 When the machine is spinning in high speed verify that it is stable VIBRATION NOISE IN SPIN If it is not stable adjust feet accordingly After the washer is level tighten the lock nuts up against of the base of the washer All lock nuts must be tightened If you do not have the unbalance part put 4 5 to 6 5 lbs 2 to 3 ...

Страница 23: ...6 Press the Start Pause button 7 Press the Beeper button repeatedly to set spin speed 600 800 1000 1200 rpm and check if there is vibration and noise 8 If there is no vibration and noise increase the spin speed by pressing Beeper button 9 If there is vibration and noise rotate the Cycle selector knob clockwise to reduce the Spin Speed reduce by 50 and 100 rpm In case of 600 rpm it can not reduce t...

Страница 24: ...DE Is water supplied Are receptacles correctly connected to the terminals of the INLET VALVE ASSEMBLY Has detergent been put in the correct compartment of the dispenser Is the detergent caked or hardened Open the tap Check theAIR CHAMBER and the tube clogged Clean the filter Replace the INLET VALVE ASSEMBLY Check electrical connection Replace the MAIN PWB ASSEMBLY Refer to NO WATER SUPPLY Check th...

Страница 25: ...n the dispenser Put it in the correct compartment Clean the Cap and Container Is the motor bolt loosened Is there friction noise coming from the motor Is water supplied Are the plugs correctly connected to the terminals of the INLET VALVE ASSEMBLY Is liquid detergent softener bleach put in the correct compartment of the drawer Is the liquid detergent softener bleach cap clogged ...

Страница 26: ...e pressing the POWER button Is the voltage 120 V AC Repair the DRAIN HOSE ASSEMBLY Is the drain hose twisted or frozen Remove foreign material Is the impeller of the drain pump clogged Reconnect or repair the connector 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 Ω Replace the MAIN PWB ASSEM...

Страница 27: ...hen checking the voltage between connector during whites washing Is the voltage 120 V AC Push the THERMISTOR tightly to the rubber When checking the THERMISTOR on the tub is the THERMISTOR loose HEATING CONTINUOUSLY ABOVE THE SETTING WATER TEMPERATURE WASH HEATER TROUBLE ...

Страница 28: ...ected disassembled Is the coil of the right side of drain pump open or short circuited Coil R is 18 30 Ω When checking voltage between the connectors during spin is the voltage 120V AC as the figure Remove foreign material Remove foreign material Reconnect or repair the connector Replace PUMP MOTOR ASSEMBLY Replace the MAIN PWB ASSEMBLY ...

Страница 29: ...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 Is the resistance of the terminal the same as the figure MOTOR TERMINAL Resistance of terminal About 5 Ω 15 Ω Replace the MAIN PWB ASSEMBLY Does the spring of Latch Hook actuate Is there clicking sound once or twice when the START PAUSE button is pressed to star...

Страница 30: ...of thermistors on dry duct 2 5kΩ 180kΩ at 100 0 Clean the bellows Disassemble the cabinet cover and condensing bellows Is there any foreign object in the condensing bellows Disassemble the dry fan assembly and dry duct upper and remove foreign objects in duct and fan ...

Страница 31: ...30 ...

Страница 32: ...ate backward and upward as shown Unscrew the 9 screws from the Control Panel Assembly Disassemble the Display PWB Assembly Disconnect the Display PWB Assembly connector from Trans cable Pull out the drawer and unscrew 2 screws Lift the left side of the Control Panel Assembly and pull it out Unscrew 2 screws on the back of the top plate Pull the top plate backward and upward as shown ...

Страница 33: ...32 Unscrew 1 screw on the back Disassemble the Main PWB Disconnect the connectors Disconnect the POWER connector and SENSOR SWITCH ASSEMBLY Remove the Protect Cover ...

Страница 34: ...ER ASSEMBLY after unscrew 2 screws Unscrew a screw from the TOP BRACKET Disassemble two connectors from the POWER CORD Wire Color 5 Disassemble the 4 connectors from the valves 6 Unscrew 2 screws from the back of the cabinet 1 2 3 4 5 Blue Housing YL BK Red Housing VT BK White Housing WH BK Blue Housing GY BK Red Housing BL BK 5 ...

Страница 35: ...the filter cover and pull it out Unscrew the screw from the lower side of the cabinet cover Unscrew the 4 screws from upper of the canbinet cover Unscrew the screw from filter cover Unscrew the a screw from the Top Bracket Disassembly one connector from the Main PWB ...

Страница 36: ... the clamp assembly Tilt the cabinet cover Disconnect the door switch connector NOTE When assembling the CABINET COVER connect the connector Lift and separate the cabinet cover Disassemble the clamp assembly Disassemble the Gasket ...

Страница 37: ...e openng of the hinge and pull out the hinge cover Unscrew a screw from the lower side of door Disassemble the door upward Open the door and disassemble the CLAMP ASSEMBLY Unscrew the 2 screws Be careful The door is heavy NOTE Reconnect the connector after replacing the DOOR SWITCH ASSEMBLY ...

Страница 38: ...ssemble the cabinet cover Separate the pump hose the bellows and the circulation hose assembly from the pump assembly Disassemble the pump assembly in arrow direction CAUTION When assembling the heater insert the heater into the heater clip on the bottom of the tub Tighten the fastening nut so the heater is secure ...

Страница 39: ...rom the back cover Unscrew the single screw from the lower right side of the cabinet Disassemble the cabinet cover Separate the heater from the tub Remove any foreign objects wire coin etc by inserting a long bar in the opening ...

Страница 40: ...base Separate the dampers Unscrew the 2 screws from the tub bracket Remove the 6 bolts on the stator Unplug the 2 connectors from the stator Disassemble the back cover Remove the bolt Pull out the Rotor NOTE Once removed replace the damper with new one ...

Страница 41: ... A390 A201 A155 A440 A430 A100 A101 A104 A102 F110 F215 F210 A450 A111 A110 A154 A141 A150 A103 A220 A200 Printed materials Description Owner s Manual Energy Label Loc No Service Manual Wiring Diagram Quick Start Guides Installation Sheet G001 G002 G004 G005 G006 G007 G010 The following parts are not illustrated Non Skid Pads ...

Страница 42: ... F145 F468 K520 K135 F463 F461 K540 K121 K115 K141 K117 K610 K345 K142 In case of replacing THERMISTOR of HEATER ASSEMBLY K320 replace HEATER ASSEMBLY K320 HEATER ASSEMBLY K320 includes THERMISTOR In case of replacing BEARING BALL K121 K122 and GASKET K125 replace TUB ASSEMBLY OUTER K105 TUB ASSEMBLY OUTER K105 includes BEARING BALL K121 K122 and GASKET K125 Part Assembly K142 includes 10 screws K...

Страница 43: ...42 10 3 DISPENSER ASSEMBLY HOT RED COLD BLUE F300 F220 A275 A276 F227 F226 F225 F432 F130 F120 F441 F430 F170 F321 F322 F323 F462 F160 ...

Страница 44: ...43 10 4 DRYER K311 M235 M130 M230 M312 M310 M260 M220 M101 M240 M215 M210 M110 M111 M100 M311 M120 M121 ...

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