electric & gas dryer service manual
Contents
1. 22 9 2 TEST 3 000008 23 9 3 24 TESTA MOISTURE SENSORE 954 TESTS DOOR SWIICETESE sleale 25 9 3 TEST 6 HEATER SWITCH TEST ELECTRIC ee o e e eto 26 9 6 GAS VANE TEST GAS PE dende 27 CHANGE GAS SETTING NATURAL GAS PROPANE GAS 28 10 DISASSEMBLY INSTRUCTIONS e tat ae t E eta lia ie 30 11 LZ EXPLODED VIEW frenare e ee oue 37 CONTROL PANEL amp PLATE ASSEMBLY ata ct tie aaa 37 12 1 CABINET amp DOOR ASSEMBEY e de Lee 38 12 2 DRUM amp MOTOR ASSEMBLY ELECTRIC TYPE 39 12 3 1 DRUM amp MOTOR ASSEMBLY GAS TYPE 40 12 3 2 lid 41 REPLACEMENT PARTS 13 SPECIFICATIONS Name Electric and Gas Dryer Power supply Please refer to the rating label regarding detailed information Size 68 6X98 3X76 1 cm Dryer capacity 7 3cu ft Weight 126 lbs Specifications are subject to change by manufacturer ACESSORIES Dryer rack 1 each Stacking kit 1 each Pedestal 1 each Purchased Separately Purchased Separately See page 6 for how to use See page 7 for how to use See page 8 for how to use DLE5977W DLE5977B DLE3777W2. y CAD a 3 7 y 7 40 Y ARI a a lt 5 a vi i y MSF ar CM 0 JA g x K 2 PE Y 3 1 4 1 New Stainless Steel Flexible Connector Use 4 Black Iron Pipe only if allowed by local codes Use Design Shorter than 20 6 1 Use 3 8 pipe A G A Certified Connector Longer than 20 6 1 Use 1 2 pipe 2 1 8 Pipe Plug 5 3 8 N P T Gas Connection for checking inlet gas pressure 3 Equipment Shut Off Valve Installed within 6 1 8 of dryer 2 4 DRYER CYCLE PROCESS Default Conditions of operation and termination Drving Cooling Wrinkle care Dry Display time Electro Temp Default Temp Time sensor Control time Contro HEAVY DUTY HIGH Normal Saturation 47 5 COTTON TOWELS Normal Saturation 47 5 C NORMAL MEDIUM Normal Saturation 60 4 C 47 5 C Sensor Dry PERM PRESS LOW Normal Saturation 52 3 47 5 DELICATES LOW Normal Saturation 52 3 C 38 5 C ULTRA ULTRA DELICATE Low Normal Saturation 45 3 C 38 5 SPEED DRY Saturation 70 5 C 475 C Manual FRESHEN UP Saturation 66 5 47 5 Dry ek AIR DRY Saturation N A heater Off Time 6min St On Time 10sec Temperature Control for each cycle Heater m mm um gt
3. 31 COVER CABINET 32 1 Disassemble the top plate 2 Disassemble the control panel assembly 3 Disassemble the door assembly 4 Remove 2 screws 5 Remove 4 screws from the top of cabinet cover 6 Disconnect the harness of door switch TUB DRUM FRONT 33 Disassemble the top plate 2 Remove Cover Cabinet 3 Disconnect the door lamp and electrode sensor connector 4 Remove 4 screws Disassemble the Tub Drum Front 1 Disassemble the top plate 2 Remove the Cabinet Cover and Tub drum front 3 Loosen belt from motor and idler pulleys 4 Carefully remove Drum out 1 Disassemble the door Remove a screw by holding the drum lamp shield in place e Slide the shield up and remove Remove the bulb and replace with a 15 watt 120 volt candelabra base bulb Replace the lamp shield and screw DRYER EXHAUST CHANGE PORTION A Knockout DUCT TAPE 1 Remove a screw and exhaust duct 2 1 Detach and remove a knockout at the botton left or right side as desired Right Side Vent not available on Gas dryer O O the order of work 2 2 Reconnect the another duct 11 in 28cm to the blower housing and attach the duct to the base Duct is a SVC part 3 1 Pre assemble 4 elbow with 4 duct Wrap duct tape around joint 3 2 Insert elbow d
4. Remove 2 screws 2 Disassemble the pipe assembly Replace Natural Gas orifice with Propane Gas orifice Gas type Orifice P No 4948EL4002B 0 Kit contents Orifice Dia 1 613mm for Propane Gas Replace Label Instruction sheet GAS VALVE FLOW START KEY PUSH VALVE 1 ON IGNITE ON IGNITE 370 F YES TEMPERATURE ABOUT NO FRAME DETECT OPEN IGNITE OFF VALVE 2 ON GAS IGNITION YES NO FRAME DETECT CLOSE DRYING VALVE 2 OFF GAS IGNITION GAS VALVE STRUCTURE START FRAME DETECT VALVE 2 Change screw Valve 1 Valve 2 29 DISASSEMBLY INSTRUCTIONS Disassemble and repair the unit only after pulling out power plug from the outlet TOP PLATE 1 Remove 3 screws on the upper plate 2 Push the top plate back ward 3 Lift the top plate 30 CONTROL PANEL ASSEMBLY 1 Remove 2 screws on the control panel frame 2 Disconnect the connectors 3 Pull the control panel assembly upward and then forward 4 Remove 9 screws on the PWB PCB assembly display 5 Remove 4 screws on the PWB PCB assembly main 6 Disassemble the control panel assembly
5. Sensor dry Dry Level is set by users Manual dry Temperature control is set by users Default settings can be adjusted by users 13 COMPONENT TESTING INFORMATION A Component Test Procedure Check result B When checking the Component be sure to turn the power off and do voltage discharge sufficiently Remark 1 Thermal cut off Y Check Top Marking N130 ID UL Measure resistance of terminal to terminal D Open at 266 12 F 130 7 C 2 Auto reset 31 F 35 C Same shape as Outlet Thermostat If thermal fuse is open must be replaced Resistance value oo 2 Continuity 250 F lt 10 Heater case Safety Electric type 2 Hi limit Thermostat Auto reset Measure resistance of terminal to terminal D Open at 257 9 F 125 5 C 2 Close at 221 9 F 105 5 C Resistance value 2 Resistance value lt 50 Heater case Hi limit Electric type 3 Outlet Thermostat Auto reset SF Check Top Marking N85 Measure resistance of terminal to terminal D Open at 185 9 F 85 5 C 2 Close at 149 gt 9 F 65 5 C Same shape as Thermal cut off Resistance value Resistance value lt 50 Blow housing Safety Electric type 4 Lamp holder Measure resistance of terminal to terminal M
6. If your local codes or ordinances do not allow the connection of a frame grounding conductor to the neutral wire use the instructions under this section 1 Connect neutral wire white of power cord to center terminal block screw 2 Connect ground wire of appliance and neutral wire of power cord to center terminal block screw 3 Connect red and black wire to the left and right terminal block screws 4 Make sure that the strain relief screw is tightened and be sure that all terminal block nuts are on tight and power cord is in right position 5 Connect a independent ground wire from external ground connector to proper ground 3 2 Connect Gas Supply Pipe Gas Dryer ONLY For further assistance refer to section on Gas Requirements 1 Make certain your dryer is equipped for use with the 3 Connect to gas supply pipe using a new flexible type of gas in your laundry room Dryer is equipped stainless steel connector at the factory for Natural Gas with a 3 8 gas Tighten all connections securely Turn on gas and connection check all pipe connections internal amp external for 2 Remove the shipping cap from the gas connection gas leaks with a non corrosive leak detection fluid at the rear of the dryer Make sure you do not 5 For L P Liquefied Petroleum gas connection refer damage the pipe thread when removing the cap to section on Gas Requirements
7. A M220 THERMOSTAT ASSEMBLY 6931EL3004B 6931EL3004B 6931EL3004B 1 ES M240 SENSOR ASSEMBLY 6501EL3001A 6501EL3001A 6501EL3001A M140 GUIDE BURNER 4974EL1001A 4974EL1001A 4974EL1001A M150 PIPE ASSEMBLY 5201EL3001A 5201EL3001A 5201EL3001A 1 1 1 M110 VALVE ASSEMBLY GAS 5221 12002 5221EL2002A 5221EL2002A 1 M190 PIPE ASSEMBLY 5201EL2001A 5201EL2001A 5201EL2001A 1 1 1 1 1 1 1 1 4036EL3002A 4036EL3002A 4036EL3002A 4948EL4001B 4948EL4001B 4948EL4001B 4948EL4002B 4948EL4002B 4948EL4002B M180 CONNECTOR MECH PIPE 4932EL4001A 4932EL4001A 4932EL4001A M160 IGNITER 5318EL3001A 5318EL3001A 5318EL3001A A600 HARNESS PWB 6877EL1008A 6877EL1008A 6877EL1008A K100 TUB ASSEMBLY DRUM 3045EL1002E 3045EL1002E 3045EL1002E 2 K120 LIFTER 4432EL1002B 4432EL1002B 4432EL1002B 3 K130 BELT POLY V 4400EL2001A 4400EL2001A 4400EL2001A K210 TUB DRUM FRONT 3044EL1001B 3044EL1001B 3044EL1001B 1 1 LAMP ASSEMBLY 6913EL3002C 6913EL3002C 6913 13002 1 K222 LAMP ASSEMBLY 6913EL3001A 6913EL3001A 6913EL3001A 1 250 ROLLER ASSEMBLY 4581EL3001A 4581EL3001A 4581EL3001A 1 1 1 1 K240 DUCT ASSEMBLY 5209EL1002A 5209EL1002A 5209EL1002A K320 COVER GUIDE 3550EL1006B 3550EL1006B 3550EL1006B K340 SENSOR 6500EL3001A 6500EL3001A 6500EL3001A 2 K330 GUIDE FILTER 4974EL1003
8. f you cannot reach your gas supplier call the fire Clear the room building or area of all occupants department IMPORTANT Electrostatic Discharge ESD Sensitive Electronics ESD problems are present everywhere ESD may damage or weaken the electronic control assembly The new control assembly may appear to work well after repair is finished but failure may occur at a later date due to ESD stress Use an anti static wrist strap Connect wrist strap to green ground connection point or unpainted metal in the appliance OR Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance Before removing the part from its package touch the anti static bag to a green ground connection point or unpainted metal in the appliance Avoid touching electronic parts or terminal contacts handle electronic control assembly by edges only When repackaging failed electronic control assembly in anti static bag observe above instructions 4 FEATURES AND BENE Sitios 6 2 INSTALLATION INSTRUCTIONS SSR 6 3 DRYER CYCLE PROCESS ogende drente kee 13 COMPONENT TESUNGINFORMATON ctas in 14 5 MOTOR DIAGRAM AND SCHEMATIG scort llos iia ion 17 6 Ze CONTROLEAY SOUT A lat ei a 18 E 19 WIRING 8 eed 20 DIAGNOSTIC 9 TEST T 1206 ELECTRICAL eni oi li 21 9 1 TEST 2 THERMISTOR TEST MEASURE WITH POWER OFF
9. DLG5988W DLE5988B DLG3788W SEMO Color Blue White Black Blue White Material amp Porcelain Painted Door Trim Chromate STS Deco Blue White POWER SUPPLY 120V 240V 60Hz 26A MOTOR 250W 4 5 AC 120V ELECTRICITY CONSUMPTION HEATER 5400W 22 5A AC 240V ELECTRIC TYPE LAMP 15 W 125 AC 120V GAS VALVE 13 W 110mA x 2 AC 120V GAS TYPE CONTROL TYPE Electronic DRUM CAPACITY 7 3 cu ft Weight lbs Net Gross 124 144 No of Programs 9 7 No of Dry Options 5 5 No of Temperature Controls 5 5 No of Dry Levels 5 5 Sound levels High Low Off Moisture Avaiable Electrode sensor Sensor Temperature Avaiable Termistor Reversible Door Avaiable Drum Stainless Steel Dryer Rack Avaiable Child Lock Avaiable Interior Light Avaiable Product WxHxD 27 x 42 3 4 x 28 1 3 Packing WxHxD 29 11 x 44 314 x 30 3j FEATURES AND BENEFITS DLE5977W DLG5988W DLE5977B DLG5988B SENSOR DRY DELICATES PERM PRESS ULTRA DELICATE MORE TIME Q CUSTOM MANUAL DRY Processie O SPEED DRY ess ue EST TIME REMAINING O RACK DRY FO SET CHILD LOCK O VERY DRY O HIGH O 60 O HIGH MORE DRY O MID HIGH 50 WRINKLE O NORMAL O MEDIUM 040 O LOW CARE O LESS DRY O LOW 30 ODAMPDRY OULTRALOW O20 O OFF BACTERIAL C 2 DAMP DRY DRY TEMP TIME BEEPER OPTION LEVEL CONTROL DRY SENSOR DAY DELICATES MANU
10. Place washer firmly on a stable even and solid floor as product installation instructions describes in owner s manual Peel protective paper off the tape from the stacking kit side bracket Insert the front stacking kit Push the front stacking kit back to the stoppers of side stacking kit Fit the stacking kit side bracket firmly to the side of top plate by attaching the double faced tape to top plate as picture shows 7 Do not use stacking kit with a gas dryer in potentially unstable conditions like a mobile home Pedestal Installation Instructions x For washer dryer and combo LG 27 Attach the double faced tape of the bracket to the i i dryer as shown so the bent parts of the brackets align with the edge and can be attached to the pedestal with screws NOTE Attach the lower side first Be sure to press the adhesive parts of the brackets firmly to the appliance Remove pedestal installation hardware and instructions from the shipping carton 9 Position dryer on top of the pedestal for washer combo 6 Install the eight 8 screws supplied to attach the brackets to the pedestal 7 Move the dryer to the desired place NOTE The appliance and pedestal assembly must be placed on a solid and level floor for proper operation Adjust the legs of the appliance and pedestal by turning with a wrench Then adjust the lock unt toward the ped
11. Caution When measuring power be sure to wear insulated gloves to avoid electric shock While operating Heating will not work Drying time takes longer Trouble Symptom Measurement Condition With dryer power on Power On amp Start Normal Cycle NO When measuring Valve 1 voltage More than AC 90V Check thermostat Hi limit Safety YES Igniter operates after 1 min Igniter becomes reddish YES Check Igniter amp Frame detect When measuring Valve 2 voltage Value is more than AC 90V 10 sec after Igniter off Check Gas connection or Gas supply When measuring terminal resistance on Valve 1 Valve 2 Value is more than1 5 2 5 Measure after Off Change Valve NO Harness check Controller change 27 CHANGE GAS SETTING NATURAL GAS PROPANE GAS After Natural Gas Setting applying Propane Gas Orifice or wrong use of Natural Gas Orifice will result in fire Conversion must be made by a qualified technician Initially Natural Gas mode is set Propane Gas Orifice is on sale as a Service Part to authorized servicers only STEP 1 VALVE SETTING V Full open Full open Change screw 28 Close Change screw
12. amp Motor Assembly Gas type Propane Gas orifice M170 Natural Gas orifice M171 REPLACEMENT PARTS LIST CAUTION Before replacing any part of these components read carefully the safety precautions in this manual 1 Note S Safety Parts AL Alternative parts LG MODEL TD V10050E TD V10051E TD V10055E MODEL P NO DLE5977W DLE5977B DLE3777W A500 CABINET ASSEMBLY 3091EL0003A 3091EL0003C 3091EL0003A 1 A510 CAP DRIER 5006EL3001D 5006EL3001E 5006EL3001D 2 K600 BRACKETASSEMBLY 4811EL1002A 4811EL1002A 4811EL1002A 1 i dE K640 SWITCH MICRO 3W40025D 3W40025D 3W40025D 1 nn 510 BLOWER ASSEMBLY 5835EL1002A 5835EL1002A 5835EL1002A NIMS 550 THERMISTOR ASSEMBLY 6323EL2001B 6323EL2001B 6323EL2001B 560 THERMOSTAT ASSEMBLY 6931EL3002A 6931EL3002A 6931EL3002A DESCRIPTION K530 DUCT ASSEMBLY 5209EL1006A 5209EL1006A 5209EL1006A K400 TUB DRUM BACK 3044EL0002B 3044EL0002B 3044EL0002B mem K250 ROLLER ASSEMBLY 45815 3001 4581EL3001A F110 HEATER ASSEMBLY 5301EL1001A 5301EL1001A 5301EL1001A F130 THERMOSTAT ASSEMBLY 6931EL3003D 6931EL3003D F140 THERMOSTAT ASSEMBLY 6931EL3001C 6931EL3001C 6931EL3001C m HARNESS PWB 1 1 1 6877EL1007A 6877EL1007A 6877EL1007A 12600 5 118 K140 SEAL 4036EL3001A 4036EL3001A 4036EL3001A K120 LIFT
13. resistance of terminal to terminal Resistance value 100 8000 Gas type C 1085 5 754 120V AC 80_HZ Measure resistance of terminal to terminal D Open at 370 F Maximum Close at 320 F 15 Resistance value Resistance value lt 10 Gas type Component Test Procedure Check result Remark 13 Outlet Thermostat Measure resistance of terminal Gas type Auto reset to terminal Gas funnel D Open at 203 7 F 95 5 C D Resistance value o DD 668 7 Close at 158 9 F 70 5 2 Continuity lt 10 QU Check Top Marking N95 13 Outlet Thermostat Measure resistance of terminal If thermal fuse is open must Gas type Manual reset to terminal be replaced Gas funnel Cm D Open at 212 12 F D Resistance value 100 7 C UL il Manual reset Continuity lt 10 Check Top Marking N100 16 MOTOR DIAGRAM AND SCHEMATIC NOTE When checking Component be sure to turn Power off then do voltage discharge sufficiently Contact On Off by Centrifugal Switch Terminal No Remark Mode Resistance Motor Heater Electric Models Gas Valve Gas Models Motor Heater Electric Models Gas Valve Gas Models STOP MODE RUN MODE When Motor does not operate Moto
14. 01B 3750EL1001B 1 41 CAUTION Before replacing any part of these components read carefully the safety precautions in this manual i Note S Safety Parts AL Alternative parts LG MODEL TD V10050E TD V10051E TD V10055E DESCRIPTION MODEL DLG5988W DLG5988B DLG3788W 500 CABINET ASSEMBLY 3091EL0003B 3091EL0003D 3091EL0003B A510 CAP DRIER 5006EL3001D 5006EL3001E 5006EL3001D K610 MOTOR ASSEMBLY WM 4681EL1002A 4681EL1002A 4681EL1002A mu K600 BRACKET ASSEMBLY 4811EL1002A 4811EL1002A 4811EL1002A K650 PULLEY ASSEMBLY MOTOR 4561EL3002A 4561EL3002A 4561EL3002A K640 SWITCH MICRO 3W40025D 3W40025D 3W40025D SLOWER ASSEMBLY 38 SBE 1002A K510 BLOWER ASSEMBLY 5835EL1002A 5835EL1002A 5835EL1002A 520 HOUSING ASSEMBLY MECH BLOWER 3661EL1001C 3661EL10010 S661EL1001C 1 K550 THERMISTOR ASSEMBLY 6323EL2001B 6323EL2001B 6323EL2001B 1 THERMOSTAT ASSEMBLY GSGTELSOOZA 6931 GSSTESOOZA 1 K530 DUCT ASSEMBLY 5209EL1006A 5209EL1006A 5209EL1006A 1 K400 TUB DRUM BACK 3044EL0002B 3044EL0002B 3044EL0002B 1 1 F200 DUCT ASSEMBLY 5209EL1001D 5209EL1001D 5209EL1001D K250 ROLLER ASSEMBLY 4581EL3001A 4581EL3001A 4581EL3001A 1 M210 FUNNEL 3016EL1001A 3016EL1001A 3016EL1001A 1 mazo THERMOSTAT ASSEMBLY GOTETE ces 0130048
15. 2 OOD o 8 96 NE 190 e eee 5 zz 5 la COM gt xi lola a lt DI gt BELT 5 de LAMP o SWITCH z GRAY 5 4 DOOR SWITCH YELLOW Si Outlet IGNITE 33 SL THERMOSTAT Es 9 T d DC VALVE1 DRIVE 5 DC VALVE2 M ra 5 MOISTUR 0 T THERMISTOR BI THERMOSTAT FLAME DETECT Lyi 9 a amp WHITE i Ly THERMOSTAT HI LIMIT 19 DIAGNOSTIC TEST 1 This TEST should be used for Factory test Service test Do not use this DIAGNOSTIC TEST other than specified 2 Activating the Heater manually with the Door open may trip the Thermostat attached to the Heater therefore do not activate it manually Do not press the door switch to operate the heater while the door is open ACTIVATING THE DIAGNOSTIC TEST MODE 1 Unit must be in Standby unit plugged in display off 2 Press POWER while pressing MORE TIME and LESS TIME simultaneously Pressing the START PAUSE button CHECKING ACTION DISPLAY CHECKING POINT REMARK Electric control amp Temperature sensor Won t power up Defective LED Thermistor open v gt DOC C Thermistor close See test 1 Display See page See test 2 70 239 Measured Moisture Value Motor runs See test 3 Displays Moisture Sensor Operation If moisture sensor is contacted with damp cloth The display number is below 180 in normal cond
16. AL DRY SPEED DAY wore me EST TIME REMAINING RACK DRY oem C FSE O VERY DRY HIGH MIN MORE DRY O MID HIGH 50 2 WRINKLE O NORMAL O MEDIUM O 40 OLOW CARE O LESS DRY O LOW 30 DAMP DRY ULTRA LOW 20 OFF BACTERIAL DO gt T DRY TEMP TIME BEEPER OPTION LEVEL CONTROL DRY INSTALLATION INSTRUCTIONS Open the door Put the dryer rack into Make sure that dryer is Hold the dryer rack the drum evenly placed right onto the with both hands drum inside and door rim Stacking Kit Installation Instructions To ensure safe and secure installation please observe the instructions below WARNING Secure stacking kit side bracket to the washer with a screw on the back of bracket Do not attempt installation with one person Repeat Steps 2 3 4 for the other side Incorrect installation procedure can cause serious accidents and physical Injuries The weight of the dryer and the height of installation makes the stacking procedure TOF one parson This procadurg 5 Place the dryer on top of the washer by fitting legs as shown in the picture Avoid finger injuries be careful not to pinch fingers between the washer and dryer Slide washer slowly backwards to the stopper of kit should be performed by 2 or more experienced service personnel SETA Stacking kit
17. B 4974EL1003B 4974EL1003B E K310 FILTER ASSEMBLY LINT 5231EL1003B 5231EL1003B 5231EL1003B 1 A390 FRAME ASSEMBLY 3211EL1003A 3211EL1003A 3211EL1003A 1 A310 COVER CABINET 3550EL0005A 3550EL0005B 3550EL0005A 1 1 A330 SWITCH ASSEMBLY SAFETY 6601EL3001A 6601EL3001A 6601EL3001A A320 LATCH ASSEMBLY 4027EL1001A 4027EL1001A 4027EL1001A 1 A400 DOOR ASSEMBLY 3581EL0002A 3581EL0002A 3581EL0002D 1 A420 DOOR FRAME OUTER 3212EL1009A 3212EL1009A 3212EL1010C 1 A410 LATCH HOOK 4026EL3007A 4026EL3007A 4026EL3007A 1 1 1 A460 GASKET A210 TOP PLATE ASSEMBLY 3457ER1006E A110 PANEL CONTROL 3720EL0001D 1 A550 POWER CORD ASSEMBLY A7OO RACK 42 Apr 2004 PRINTED IN KOREA P No 3828EL3005A
18. ER 4432EL1002B 4432EL1002B 4432EL1002B K130 BELT POLY V 4400EL2001A 4400EL2001A 4400EL2001A m aum d dE E K221 LAMP ASSEMBLY 6913EL3002C 6913EL3002C 6913EL3002C K222 ASSEMBLY 6913EL3001A 6913EL3001A 6913EL3001A K250 ROLLER ASSEMBLY 4581EL3001A 4581EL3001A 4581EL3001A K240 DUCT ASSEMBLY 5209EL1002A 5209EL1002A 5209EL1002A K320 COVER GUIDE 3550EL1006B 3550EL1006B 8 OO SENSOR 0 GOCE K330 GUIDEFILTER_____________ 4974EL1003B 4974EL1003B 4974EL1003B FRAME ASSEMBLY 32 TEL TORIA A390 FRAME ASSEMBLY 3211EL1003A 3211EL1003A 3211EL1003A mm COVER CABINET 3550EL0005A 3550EL0005B 3550EL0005A A330 SWITCH ASSEMBLY SAFETY 6601EL3001A 6601EL3001A 6601EL3001A A320 LATCH ASSEMBLY 4027EL1001A 4027EL1001A 4027EL1001A A400 DOOR ASSEMBLY 3581EL0002A 3581ELO002A 3581 100020 A410 LATCHHOOK 4026EL3007A 4026130078 4026EL3007A 1 A460 GASKET CC 4986EL2004A 4986EL2004A 4986EL2004A 1 H A210 TOP PLATE ASSEMBLY 3457ER1006D 3457ER1006J SASTERTOO6E 1 A110 PANEL CONTROL 3720EL0001A 3720EL0001G 3720EL0001C 1 140 KNOB ROTARY 4940553016 4940573016 4940ER3016A 1 A130 PWB PCB 6871561121 214 6871EC1121E 1 1 120 PWB PCB ASSEMBLY DISPLAY 6871501115 6871501115 6871EC1115C 1 1 A700 RACK 3750EL1001B 3750EL10
19. Website http www LGservice com For U S A www lg ca For Canada ELECTRIC amp GAS DRYER SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE MODEL DLE5977W DLG5988W DLE5977B DLG5988B DLE3777W DLG3788W IMPORTANT SAFETY NOTICE The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical electronic and mechanical experience Any attempt to repair a major appliance may result in personal injury and property damage The manufacturer or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use A WARNING To avoid personal injury disconnect power before servicing this product If electrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers used to complete a path to ground are removed for service they must be returned to their original position and properly fastened WHAT TO DO IF YOU SMELL GAS Do not try to light a match or cigarette or turn on B Immediately call your gas supplier from a neighbor s any gas or electrical appliance phone Follow the gas suppliers instructions Do not touch any electrical switches Do not use any carefully phone in your building
20. al block hooked end facing rightward and pinch the hook together and screw tightly 1 Connect neutral wire white of power cord to center terminal block screw 2 Connect red and black wire to the left and right terminal block screws 3 Connect ground wire green of power cord to external ground screw and move neutral ground wire of appliance and connect it to center screw 4 Make sure that the strain relief screw is tightened and be sure that all terminal block nuts are on tight and power cord is in right position 3 wire connection Direct wire Important use 3 wire connection in the places such as mobile homes and areas where 3 wire connections is not available Prepare minimum Sft 1 52m of length in order for dryer to be replaced First peel 3 inch 8 9cm of covering material from end and bare 1 inch from the ends N 2 gon dom Then put the hooked shape end of the wire under the screw of the terminal block hooked end facing rightward and pinch the hook together and screw tightly Connect neutral wire white of power cord to center terminal block screw 2 Connect red and black wire to the left and right terminal block screws Make sure that the strain relief screw is tightened and be sure that all terminal block nuts are on tight and power cord is in right position 10 Option 1 4 wire connection with a Power supply co
21. easure resistance of the following terminal 1 Door switch knob open D Terminal NC 1 3 2 Terminal NO 1 2 2 Door switch push push D Terminal NC 1 3 Terminal COM NO 1 2 Resistance value 800 1000 D Resistance value lt 0 2 Resistance value oo D Resistance value o 2 Resistance value lt 10 The state that Knob is pressed is opposite to Open condition 6 Idler switch O al Measure resistance of the following terminal COM NC 14 1 lever open D Resistance value lt 10 2 Lever push close 2 Resistance value o Component Test Procedure Check result Remark 7 Heater Measure resistance of the following terminal D Terminal 1 COM 2 2 Terminal 1 COM 3 Terminal 2 3 D Resistance value 100 Resistance value 100 9 Resistance value 200 Electric type Measure resistance of terminal to terminal Temperature condition 58 F 10 40 C 58 F 104F 10 40 C Resistance value 100 Heater case Hi limit Electric type 9 Motor See Page 13 10 Gas valve valve 1 valve 2 Measure resistance of the following terminal D Valve 1 terminal 2 Valve 2 terminal D Resistance value gt 1 5kg 2 Resistance value lt Gas type Measure
22. ent taking Connector WH3 BL2 out from Controller testing YES Check Controller Check Harness linking connector 25 Test 6 Heater switch test Electric Type Before measuring resistance be sure to turn Power off and do voltage discharge Caution When discharging contact the metal plug of Power cord with earth line While operating Heating will not work Trouble Symptom Drying time takes longer Measurement Condition After turning Power off measure the resistance 1 1 resistance between Heater terminal and amp below 18 220 2 Is resistance between Heater terminal and below 18 220 3 Is resistance between Heater terminal and below 9 110 Replace Heater YES Check if the value of measured resistance is Replace TH2 below 1Q between terminal TH2 Safety Thermostat Safety Thermostat YES Check if the value of measured resistance is below e Replace 3 10 between terminal TH3 HI Limit Thermostat HI Limit Thermostat YES Check Motor Check if the value of measured Check resistance is below 10 between terminal cp and 49 at RUN condition replace it Check Controller Check Harness linking Connector 26 m Test 7 GAS Valve test Gas Type
23. estal while holding the pedestal leg using a wrench Remove the paper from the bracket Review the following options to determine the appropriate electrical connection for your home 4 wire receptacle NEMA type14 30R Use the instructions at this section if your home has a 4 wire receptacle NEMA type 14 30R and you will be using a UL listed 120 240 volt minimum 30 amp dryer power supply cord 3 wire receptacle NEMA type10 30R Use the instructions at this section if your home has a 3 wire receptacle NEMA type 10 30R and you will be using a UL listed 120 240 volt minimum 30 amp dryer power supply cord If this type is available at your home you will be connecting to a fused disconnect or circuit breaker box e 3 wire direct as cm If this type is available at your home you will be connecting to a fused disconnect or circuit breaker box 4 wire connection Direct wire Important use 4 wire connection in the places such as mobile homes and areas where 3 wire connections is not available Prepare minimum Sft 1 52m of length in order for dryer to be replaced First peel 5 inch 12 7cm of covering material from end Make a 5 inch of ground wire bared After cutting 1 inch 3 8cm from 3 other wires peel insulation back linch 2 5cm Make ends of 3 wires a hook shape PI 95 5 1 27 em Then put the hooked shape end of the wire under the screw of the termin
24. f Power cord with earth line Door Opening is not sensed During operation when opening Door Drum motor and Trouble Symptom Heater run continuously Door Close is not sensed Drum motor will not operate Display will flash at 0 5 second intervals Measurement Condition After turning Dryer Power Off measure resistance Measure while Door is closed Check if Door switch resistance is below 2500 between WH3 q Check Refer to White wire and RD3 27 Black wire YES Component Connector WH3 after taking WH3 testin 9 out from Controller Check Lamp 3 When opening Measure while Door is open Check if resistance is 300 600 between WH3 T NO Lamp replace then White wire and RD3 Black wire r Connector WH3 after WH3 out from Controller eck Refer to i Component YES testing Measure while Door is open Check if Door switch resistance is below 10 between BL2 D YES Check Refer to Yellow wire and WH3 White wire after Component taking Connector WH8 BL2 out from Controller testing Measure while Door is closed Check if Door switch resistance is below 10 between BL2 D NO Check Refer to Yellow wire and WH3 q White wire after Compon
25. ith earth line Trouble Symptom Degree of dryness does not match with Dry Level Measurement Condition Turn the Dryer s Power Off then measure resistance Take 6pin Connector from the Controller Short with metal to connector s Pin 4 BLUE wire and Pin ORANGE wire to Controller db Metal or Wire Check Electro Load and Harness Connector Check Harness YES linking connector When measuring resistance in Electric load is resistance below 10 When contacting cloth to Electro load 1 Is the measurement within the range of Table 2 during Diagnostic Test Replace Control 2 Is the measurement within the range of Table 2 and Check when measuring the voltage in connector s Pin BLUE wire and Pin 6 ORANGE wire YES iw 2 Normal Condition Damping cloth m Table 2 IMC Ratio and Display Value Voltage IMC Initial Moisture Content Display Value Voltage DC between 6Pin terminal Remark Weight after removing from 70 40 50 130 2 5V Washing Machine 40 20 100 20 2 0V 4 0V Damp Dry 10 Dried clothes 205 240 Over 4 0V Completely dried clothes 24 m Test 5 Door switch test Before measuring resistance be sure to turn Power off and do voltage discharge Caution When discharging contact the metal plug o
26. ition See test 4 ELECTRIC TYPE Motor Heater 1 2700W GAS TYPE Motor Valve Current Temp m ELECTRIC TYPE Heater runs GAS TYPE GAS Valve runs Display the Temperature of Inside drum Gas valve See test 7 ELECTRIC TYPE Motor Heater 1 Heater 2 5400W GAS TYPE Motor Type Current Temp 5 70 4 times Control Off Auto Off During check If the door is open During check If the door is closed Motor amp Heater Off Lamp On Buzzer beeps seven times Motor on amp Heater Off Lamp Off Door switch See test 6 Lamp Press Start button 1 time and then open the door Proceed again with the step 1 by pressing start 1 time step 2 by pressing start 2 times step 3 by pressing start 3 times and step 4 by pressing start 4 times in sequence Press Start 2 times and then open the door Proceed again from the step 1 allthe way to the step 4 Press Start 3 times and then open the door Proceed with the step 1 and skip the step 2 and press step 3 twice and finish with step 4 by making sure the all the electric devices shut off in the end m Test 1 120VAC Electrical supply When measuring power be sure to wear insulated gloves to and avoid electric shock Trouble Symptom No power was applied to Controller LED Display off Measurement Condition With Dryer Power On Connector lin
27. ked to Controller Check the outlet is the voltage Check the fuse 110V 125V or circuit breaker Check if the voltage measured between Connector RD3 amp Black linked to the Controller and WH3 amp White is 110V 125V Check if Power Cord is properly connected YES N White Check if the Controller wire is disconnected 2 Check if Terminal Block and Power Cord are connected Check Plug Does Power Cord N Natural line match to Terminal Center N Natural line Reconnect the controller YES Replace controller 21 m Test 2 Thermistor Test Measure with Power Off Caution Before measuring resistance be sure to turn Power off and do voltage discharge When discharging contact the metal plug of Power cord with the Ground Trouble Symptom QD During Diagnostic Test tE1 and tE2 Error occur 2 During operation Heater would not turn off or remains on Difference between actual and sensed temperature is significant Measurement Condition After turning Power off measure the resistance Take 6pin Connector from the Controller to Controller YES Check if resistance is in the range of Table 1 when measuring connector Pin amp Blue wire a
28. nd Pin Red wire connected YES gt Check if resistance is in the range of Table 1 when measuring resistance between terminals after separating Harness From Thermistor assembly Connector DI Check Harness linking connector Table 1 Resistance for Thermistor Temperature Air TEMP F 50 C 10 RES Air TEMP F C 90 F 32 RES Air TEMP F 130 Check if Control and 6Pin connector is properly connected Replace Controller Replace Thermistor 54 60 16 100 3 140 60 70 21 8 110 43 43 150 66 80 27 F F F F 120 F 49 F 32 C F 38 C F 43 C F 49 C 22 F 160 F 71 m Test 3 Motor test Caution Before measuring resistance be sure to turn Power off and do voltage discharge When discharging contact the metal plug of Power cord with earth line Trouble Symptom Drum will not rotate No fan will function No Heater will work Measurement Condition Turn the Dryer s Power Off then measure resistance Is resistance below between Connector WH3 D White wire and BL2 Brown wire Measure while door is cl
29. osed Replace Control Check Controller a Relay check connector Check if Door flame Is resistance below 30 between Connector WH3 d White wire and BL2 4 Yellow wire Measure while door is closed Check Door Switch Check Harness presses door switch knob connection Is resistance below 30 between Connector BL2 q Yellow wire and BL2 Brown wire NO Replace Control Relay check Check Controller connector Replace Outlet Is resistance below 10 between terminals of Outlet Thermostat attached to blower housing Thermostat YES Refer to Component Check Idler Assembly Does Idle Switch attached to Motor Bracket operate Level by drum belt Not operating Lever is normal Drum Belt cuts off Drum Belt takes off Motor Pulley from Idler Switch Lever Idler Switch Is resistance below 10 between Idler Switch terminals Replace Idler Switch YES Check Motor Refer to Motor Diagram amp Check Check if Control Connector is contacted 23 m Test 4 Moisture sensor Before measuring resistance be sure to turn Power off and do voltage discharge Caution When discharging contact the metal plug of Power cord w
30. r operates 4 Centrifugal switch Centrifugal switch Pull Drive forward V 17 CONTROL LAY OUT PWB ASSEMBLY DISPLAY LAY OUT Ate Ao FI 8 fili Bh bk op 0 Ho Ho 5 ie oe oo Moi eo DE i 19 ll OPTION PART 4 0 6871 1115 6871 1115 6871 1115 6871EC1115D DLE5977W B DLG5988W B DLE3777W DLG3788W 18 WIRING DIAGRAM ELECTRIC DRYER WIRING DIAGRAM L1 BLACK DOOR SWITCH YELLOW WHITE RED TH1 BLOWER THERMOSTAT OVERLOAD PROTECTOR CENTRIFUGAL THERMOSTAT HI L MIT ELECTRONIC CONTROL HEATER MOISTURE SENSOR THERMISTOR OUTER COIL INNER COIL Cut off temp of the thermostat TH1 85 EON TH2 130 lt TH3 125 GAS DRYER WIRING DIAGRAM ELECTRONIC CONTROL y 7 RD3 L1 BLACK so Ce pel 1 N_WHITE Ed Y ol 1 4 BL E GN2 YL2 WH3
31. rd If your local codes or ordinances do not allow the use of a 3 wire connection or you are installing your dryer in a mobile home you must use a 4 wire connection 4 wire receptacle NEMA type 14 30R Spade terminals with upturned ends 3 4 in 1 9 cm UL approved strain relief 1 Connect neutral wire white of power cord to center terminal block screw 2 Connect red and black wire to the left and right terminal block screws 3 Connect ground wire green of power cord to external ground screw and move neutral ground wire of appliance and connect it to center screw 4 Make sure that the strain relief screw is tightened and be sure that all terminal block nuts are on tight and power cord is in right position Option 2 3 Wire Connection with a Power Supply Cord Option 3 Optional 3 wire connection If your local codes or ordinances permit the connection of a frame grounding conductor to the neutral wire use these instructions If your local codes or ordinances do not allow the connection of a frame grounding conductor to the neutral wire use the instructions under Section 3 Optional 3 wire connection 3 wire receptacle NEMA type 10 30R Spade terminals with up turned ends Neutral prong 3 wire plug Neutral prong 3 4 in 1 9 cm UL approved strain relief Ring terminals Neutral white or center wire 11
32. uct assembly first through the side opening and connect the elbow to the internal duct 34 FILTER ASSEMBLY a go 3 N 1 Remove the filter 2 Remove 3 screws 3 Remove Cover Gride 4 Disconnect electrode sensor 1 Disassembly the top plate 2 Remove the Cabinet Cover and Tub Drum Front 3 Remove the Drum assembly 4 Remove 2 screws and cover Air guide 5 Remove the bolt and washer 6 Remove the fan 7 Disconnect the motor clamp and motor 1 Disassemble the top plate 2 Remove the Cabinet Cover and Tub Drum Front 3 Remove the Drum assembly 4 Remove 7 screws 5 Remove the Tub Drum Rear towards the front AIR DUCT 1 Disassemble the top plate 2 Remove the Cover Cabinet 3 Remove filter and 2 screws 4 Remove the air duct Disassemble the top plate Remove the Cover Cabinet and Tub Drum Front Remove the Drum assembly and Tub Drum Rear Disconnect Air duct from the Tub Drum Front O RR QO N Remove the roller from the Tub Drum Front and Tub Drum Rear 36 12 EXPLODED VIEW 12 1 Control Panel amp Plate Assembly 37 12 2 Cabinet amp Door Assembly 38 12 3 1 Drum amp Motor Assembly Electric 39 12 3 2 Drum
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