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WARNING !

When you disassemble the lamp connector,

be sure to disconnect the dryer from its electrical

supply. Protect your hands and arms from sharp

edges when working. To reduce the risk of Injury to

persons adhere to all industry recommended safety

procedures including the use of long sleeved gloves

and safety glasses.

the front bulkhead.

TUB DRUM FRONT

DRUM ASSEMBLY

CHANGING THE DRUM LAMP

FOR LG TECHNICIAN

DRYER EXHAUST CHANGE

Remove screw and exhaust duct.

WARNING !

Before performing this exhaust installation, be sure to

disconnect the dryer from its electrical supply. Protect your

hands and arms from sharp edges when working inside the

cabinet. To reduce the risk of Injury to persons adhere to all

industry recommended safety procedures including the use of

long sleeved gloves and safety glasses.

Note

FOR LG TECHNICIAN

Содержание DLEX4270 /01 Series

Страница 1: ...ribution including by way of email facsimile or other electronic means publication modification copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual The material covered by this prohibition includes without limitation any text graphics or logos in this Servic...

Страница 2: ...sent 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 unpaint...

Страница 3: ...10 4 TEST 4 MOISTURE SENSOR 31 10 5 TEST 5 DOOR SWITCH TEST 32 10 6 TEST 6 HEATER SWITCH TEST ELECTRIC TYPE 33 10 7 TEST 7 GAS VALVE TEST GAS TYPE 34 CONTENTS 10 8 TEST 8 MOTOR ASSEMBLY DC PUMP 35 10 9 TEST 9 GENERATOR ASSEMBLY 35 11 CHANGE GAS SETTING NATURAL GAS PROPANE GAS 36 12 DISASSEMBLY INSTRUCTIONS 38 13 EXPLODED VIEW 48 13 1 CONTROL PANEL AND PLATE ASSEMBLY 48 13 2 PANEL DRAWER ASSEMBLY A...

Страница 4: ...egarding detailed information 27 W X 30 D X 38 H 51 D with door open 68 6 cm W X 76 1 cm D X 98 3 cm H 129 7 cm D with door open 11 16 Size Weight Dryer capacity Normal Cycle IEC 7 4 cu ft 22 5 lb 10 2 kg Steam Cycle IEC 7 4 cu ft 8 lb 3 6 kg Gas 148 71 lbs 67 4 kg Electric 145 6 lbs 66 06 kg Power supply 8 e g a p e e S Pedestal 1 each Purchased Separately FOR LG TECHNICIAN ...

Страница 5: ... Dryer Rack Child Lock Interior Light Product WxDxH Sensor Power Supply Material and Finish Chrome Elec Gas 120 V 240 V 60 Hz 26 A 120 V 208 V 60 Hz 23 A 120 V 60 Hz 11 5 A 250 W 4 5 A 5400 W 22 5 A 4100 W 21 A 15 W 0 2 A 13 W 0 11 A x 2 1100 W 9 2 A 2 4 W 0 15 A Electronic 7 4 cu ft 146 149 14 5 5 5 Available Available Available Stainless Available Available Available Packing WxDxH AC 240 V Elect...

Страница 6: ... INSTALLATION INSTRUCTIONS Dryer Rack Installation Instructions Open the door Hold the dryer rack with both hands Put the dryer rack into the drum Check and be sure that the front of the rack is properly seated behind the lint filter FOR LG TECHNICIAN 6 ...

Страница 7: ...use a stacking kit with a gas dryer in potentially unstable conditions like a mobile home Stacking Kit Installation Instructions Place the washer firmly on a stable even and solid floor as product installation instructions describe in the owner s manual Do not attempt this alone At least two people are required to lift and position the dryer on top of a washing machine Failure to heed this warning...

Страница 8: ... pedestal assembly must be placed on a solid sturdy level floor for proper operation Insert the T clip of the 4 retainers into the dryer base as shown Press up on the back of the clip and pull outward to lock into place Place the dryer on the pedestal Make sure the front and back feet are in the correct positions The dryer feet will fit into the innermost positions as shown Make sure the screws on...

Страница 9: ...ch 3 8 cm from 3 other wires peel insulation back 1inch 2 5 cm Make ends of 3 wires a hook shape 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 Use the instructions under option 1 if your home home has a 4 wire receptacle NEMA type 14 30R If this type is available at your home you will be con...

Страница 10: ...re under the screw of the terminal block hooked end facing rightward and pinch the hook together and screw tightly 1 2 5 cm 3V2 8 9 cm 3 wire connection Direct wire 1 Connect the neutral wire white of the power cord to the center terminal block screw 2 Connect the red and black wires to the left and right terminal block screws 3 Connect the ground wire green of the power cord to the external groun...

Страница 11: ...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 Option 3 Optional 3 wire connection 1 Connect the neutral white or center wire B to the center silver colored screw A and tighten securely 2 Connect the ...

Страница 12: ...he dryer Make sure you do not damage the pipe thread when removing the cap 3 Connect to gas supply pipe using a new flexible stainless steel connector 4 Tighten all connections securely Turn on gas and check all pipe connections internal and external for gas leaks with a non corrosive leak detection fluid 5 For LP Liquefied Petroleum gas connection refer to section on Gas Requirements For further ...

Страница 13: ...al Adjustable LOW Saturation 45 5 C 52 3 C 5min 32min 54min Elec 67 Gas 63 28min 55min 27min 15min 30min 25min Drying Cooling Wrinkle care Time Electro sensor Temp Control Default time Temp Control 3Hr 3Hr Load Motor Heater Temperature Control for each cycle Off Time 6min On Time 10sec Sensor dry Dry Level is set by users Manual dry Temperature control is set by users Default settings can be adjus...

Страница 14: ... value Resistance value 5Ω Heater case Hi limit Electric type 3 Outlet Thermostat Check Top Marking N85 Measure resistance of terminal to terminal Open at 185 F 85 5 C G G Same shape as thermal cut off Close Not recovery Resistance value Resistance value 5Ω Blow housing ElectricType GasType Safety 4 Lamp holder Measure resistance of terminal to terminal Resistance value 80Ω 100Ω 6 Idler switch Mea...

Страница 15: ...ndition 58 F 104F 10 40 C Resistance value 10ȳ Heater case Hi limit Electric type 9 Motor See Page 17 10 Gas valve valve 1 valve 2 Measure resistance of the following terminal Valve 1 terminal Valve 2 terminal Resistance value 1 5 2 5 kȳ Gas type 11 Igniter Measure resistance of terminal to terminal Resistance value 50 800 ȳ Gas type 12 Flame Detect Measure resistance of terminal to terminal Open ...

Страница 16: ...erminal to terminal Open at 203 41 F 95 5 C Close at 158 41 F 70 5 C Resistance value Continuity 1 Gas type Gas funnel 14 Outlet Thermostat Manual reset Check Top Marking N110 Measure resistance of terminal to terminal Open at 230 41 F 110 5 C Manual reset Resistance value Continuity 1 Gas type Gas funnel FOR LG TECHNICIAN 16 ...

Страница 17: ...t On Off by Centrifugal Switch STOP MODE When Motor does not operate RUN MODE Motor operates When checking components turn the power off and discharge voltage NOTE Centrifugal switch Centrifugal switch Pull Drive forward FOR LG TECHNICIAN 17 ...

Страница 18: ...STOR GREEN Smart Modem Connector DISPLAY PCB MAIN PCB MAIN PCB SMART READY model only GREEN YELLOW WHITE Smart Modem Connector DISPLAY PCB SMART READY model only STEAM model only STEAM model only YELLOW WHITE FOR LG TECHNICIAN 18 ...

Страница 19: ...19 Main PCB Picture P N EBR76542925 Electric EBR76542926 Gas Electric Gas Tab relay Blue Tab relay White YL3 BL2 WH4 CN11 WH4 Tab relay Black Tab relay Blue BL3 YL3 BL2 WH4 CN11 WH4 Tab relay Black 19 ...

Страница 20: ...EASY IRON HEAVY DUTY COTTON TOWELS NORMAL PERM PRESS DELICATES REDUCE STATIC EASY IRON STEAM OPTION TIME DRY Shirt 70 cotton 30 poly blend Except especially delicate fabrics DEFAULT TIME TEMP CONTROL DRY LEVEL FABRIC STATE MAXIMUM AMOUNT FABRIC TYPE The steam feeder must be filled with water up to the MAX line Otherwise an error message will be displayed If the lint filter or exhaust duct is clogg...

Страница 21: ...en steam cycle starts Steam doesn t generate but no error code is shown Garments still wrinkled after STEAM FRESH There are no creases left on garment after STEAM FRESH Garments have static after REDUCE STATIC Garments are too damp or too dry after REDUCE STATIC Garments are not uniformly damp after EASY IRON Water drips from door during steam cycle This is normal Steam vapor is difficult to see w...

Страница 22: ...played in the test mode Replace the steam generator Water supply pump When the pump valve is less than 10 in the test mode E5 PS EE tE5 error is only displayed in the test mode Check the connection between harness wire and connector Replace the water supply pump Steam generator Wire Connection Black White Red EE PROM Error Sensors do not detect that steam generator is full within 60 seconds Wire C...

Страница 23: ...features of the LG Smart Laundry DW application When you use the Tag On function position your smart phone so that the NFC antenna on the back of your smart phone matches the position of the Tag On icon on the appliance If you do not know the position of your NFC antenna move your smart phone very slightly in a circular motion until the application verifies the connection Because of the characteri...

Страница 24: ...24 Electric Dryer Symptom Check Point 1 Not heating 1 Check Electric Wiring 2 Check the motor operation 3 Voltage of the Main PWB 4 Check Heater element s Resistance ...

Страница 25: ...25 Electric Dryer Table 1 Resistance for Thermistor Temperature ...

Страница 26: ...care Heating 208 240Vac Stop 0 Troubleshooting for inadequate End user must use correct outlet or have outlet repaired by electrician Defective main PCB Unplug UNIT Check heater elements Terminal 1 COM 2 10Ω Terminal 1 COM 3 10Ω Terminal 2 3 20Ω Unplug UNIT Test thermostats Hi limit Open at 257 9 125 5 Close at 221 9 94 7 5Ω Safety Open at 284 41 140 5 Close at 31 35 5Ω Defective Thermostat If Saf...

Страница 27: ...27 Gas Dryer ...

Страница 28: ...28 Gas Dryer Table 1 Resistance for Thermistor Temperature ...

Страница 29: ...UNIT Check gas valve Valve1 terminal 1 5kΩ 2 5kΩ Valve2 terminal 1 5kΩ 2 5kΩ Unplug UNIT Check Igniter Resistance value 50 800Ω Unplug UNIT Open at 370 Maximum Close at 320 1Ω Unplug UNIT Test thermostats Hi limit Open at 203 41 95 5 Close at 158 41 70 5 5Ω Safety Open at 230 41 110 5 Close Manual reset Retest heating circuit Defective gas valve Defective Igniter Defective Flame detector Defective...

Страница 30: ...30 Symptom Check Point 2 Not tumbling 1 Check Electric Wiring 2 Check the Door properly closed 3 Voltage of the Main PWB 4 Check Blower thermostat s Resistance Electric Gas Dryer WH4 ...

Страница 31: ...N Potential for voltages over 100Vac Proceed with care Check the door Switch and hous ing Retest recheck door switch outlet thermostat belt switch motor as sembly harness Check belt Drum belt cuts off Drum belt takes off from motor Defective Motor Defective Outlet thermostat Defective Belt Switch Unplug UNIT Check belt switch 1 Lever open Resistance value 1Ω 2 Lever push Close Resistance value Unp...

Страница 32: ...u to the need of cleaning the duct When the alarm about Duct clogging is displayed clean the duct or call a servicer to clean them The FlowSenseTM display consists of four bars inside a box The display has only two possible displays as only two possible displays as shown here Also see the figure shown below No bars displayed 4 bars displayed 9 1 Flow Sensor 4 Bars NO Bars CLOGGED Check and Clean D...

Страница 33: ...installation test The code will display if the activation is successful 3 Press START PAUSE button The dryer will start the test which will last about two minutes The heat will be turned on and the temperatures in the drum will be measured 4 Check the display for results During the test cycle monitor the FLOW SENSETM display on the control panel If no bars are displayed when the cycle ends the exh...

Страница 34: ...of clutter Check the vent hood for damage or lint clogging Make sure the area around the vent hood is clear FLOW SENSETM indicator shows four bars during the drying cycle or the display drying many turns restrictions ductwork due to lint buildup or debris restriction in the external dryer venting Install a shorter or straighter duct run See the Instructions Ductwork should be checked cleaned soon ...

Страница 35: ...r off OO Motor runs Displays Moisture Sensor Operation If moisture sensor is contacted with damp cloth The display number is below180 under normal circumstances 255 Low moisture 30 High moisture 1nES Elec Type 1n9S Gas Type d02 U03 DISPLAY PGM MAIN PGM ver 1nES U03 d02 Current Temp 5 70 Current Temp 5 70 Pump AD valve 11 255 Electric control and Temperature sensor ELECTRIC TYPE Motor Heater 1 2700...

Страница 36: ...eck if power cord is properly connected Reconnect the controller Replace controIler Check if the controller wire is disconnected Check if terminal block and power cord are connected Check Plug Does power cord N Naturall line match to terminal center N Natural line 1 YES NO 2 L Black L Red N White BK or WH BL2 Check if the voltage measured between connector BK or WH Black Wire linked to the control...

Страница 37: ...tween harness wire and tap relay Black housing black tap relay Check the matching color between harness wire and tap relay White housing white tap relay White Low Extra Low Low Extra Low on on on on on O O O O on off off Temperature control below 68 Turn on heater 1 and heater 2 Temperature control below 52 4 4 Turn on only heater 1 Temperature control below 70 4 Turn on burner PCB ASSEMBLY LAYOUT...

Страница 38: ...f Wire 1 Black and white housing ྙ ྚ CROSS Items Case Heater 1 Operation black Heater 2 operation White PCB condition Of operation CAUTION Improper connection of the heater can damage the heater or the main board H CAUTION Connector Housing Black Check the matching color between harness wire and tap relay Black housing black tap relay Color Table 2 Connection of Tap Relay with PCB ASSEMBLY Gas Tab...

Страница 39: ...ture of the thermistor in the chart Use room temperature unless the thermistor is warm from running the dryer Replace the main PCB Replace thermistor Check if resistance is in the range of T able 1 when measuring resistance between terminals after separating harness from thermistor assembly connector Check harness linking connector NO NO YES YES Table 1 Resistance for Thermistor Temperature Air TE...

Страница 40: ...ler connector Replace outlet Thermostat Refer to component Check idler assembly Drum belt cuts off Drum belt takes off from motor pulley Replace idler switch Is resistance below 3 between connector BL2 White wire and WH4 Yellow wire Measure while door is closed Is resistance below 3 between connector WH4 Yellow wire and WH4 Brown wire Is resistance below 1 between terminals of outlet thermostat at...

Страница 41: ... displayed should be between 30 and 255 The numbers should start decreasing as the control senses the moisture in your skin 7 After you have observed the number decreasing remove your fingers from the sensor bars The numbers will continue to decrease for a few seconds minimum 30 and the begin to increase maximum 255 8 If this test fails proceed with the MECHANICAL TEST below Test 4 Moisture Sensor...

Страница 42: ...CHANICAL TEST below If the error displays and light comes on the door switch is working properly Test 5 Door Switch Test isY X Z Y o X Z Y NO NO NO YES YES YES WH4 Disconnect the WH1 and BL3 connector from the main PCB Measure the resistance between the NA6 GN pin and a chassis ground screw Is the resistance 1 Disconnect the BL2 and WH4 connector from the main PCB Measure the resistance between BL...

Страница 43: ...he black tab relay connector Is the resistance 18 22 Measure the resistance between YL3 WH and the YL wire on the white tab relay connector Is the resistance 18 22 Measure the resistance between the BL wire on the black tab relay and the YL wire on the white tab relay connectors Is the resistance 36 44 Measure the resistance between terminals 1 RD and the heater housing Is the resistance 1 Refer t...

Страница 44: ... 10 sec after igniter off When measuring terminal resistance on valve 1 and valve 2 valves are more than1 5 2 5 kΩ Measure after off If valve 1 and valve 2 read less than 10 V DC are the valves off Harness check Controller change Check thermostat hi limit safety Check Igniter and frame detect Check gas connection or gas supply Change valve Change valve YES YES YES YES YES NO NO NO NO NO NO Valve 1...

Страница 45: ...ou could damage the main board YES NO Replace the DC pump Normal condition see page 26 for diagnostic test information Test 8 Motor Assembly DC Pump Test 9 Generator Assembly Caution Trouble Symptom Measurement Condition Before measuring resistance be sure to turn power off and discharge voltage When discharging contact the metal plug of power cord with the ground wire ྙ During steam cycle generat...

Страница 46: ...Propane Gas Replacement Label Instruction Sheet NCU PCK Remove 2 screws Disassemble the pipe assembly Replace natural gas orifice with propane gas orifice Opened Closed Full open Adjustment screw Close Adjustment screw Orifice Initially j G G G G G G G G G G G V G UGj G G G G G G G Warning The burner is set for natural gas at the factory The propane orifice conversion kit is sold as a service part...

Страница 47: ...s lGY mshtl kl lj OPEN GAS V AL VE STRUCTURE Adjustment Screw GAS VALVE FLOW START KEY PUSH DRYING F F O 2 E V L A V N O 1 E V L A V VALVE 2 ON IGNITER ON FLAME DETECT OPEN IGNITER TEMPERATURE ABOUT GAS IGNITION FLAME DETECT CLOSE VALVE 2 OFF uv uv lz lz FOR LG TECHNICIAN 47 ...

Страница 48: ...ply Protect your hands and arms from sharp edges when working To reduce the risk of Injury to persons adhere to all industry recommended safety procedures including the use of long sleeved gloves and safety glasses WARNING THE DRYER TOP PLATE IS VERY LARGE AND HEAVY Fallure to follow instructions can result in damage to the dryer property damage or Injury to persons 1 Remove 3 screws on the upper ...

Страница 49: ...ASSEMBLY FOR LG TECHNICIAN 2 Lift out the steam feeder 3 Lift the hook and pull out the drawer 1 Remove 2 screws on the frame body PCB ASSEMBLY 2 Open the cover guide and disconnect the connectors 1 Pull out the drawer ...

Страница 50: ...5 Remove 8 screws on the PCB PCB assembly display 6 Disassemble the control panel assembly WARNING When you disassemble the control panel be sure to disconnect the dryer from its electrical supply Protect your hands and arms from sharp edges when working To reduce the risk of Injury to persons adhere to all industry recommended safety procedures including the use of long sleeved gloves and safety ...

Страница 51: ...r 6 Disconnect the harness of door switch WARNING When you disassemble the door switch connector be sure to disconnect the dryer from its electrical supply Protect your hands and arms from sharp edges when working To reduce the risk of Injury to persons adhere to all industry recommended safety procedures including the use of long sleeved gloves and safety glasses FOR LG TECHNICIAN ...

Страница 52: ... FOR LG TECHNICIAN Remove 2 screws on the frame body Push the guide assembly to the back side and then lift it Separate 2 hoses from the pump and generator Lift a pump and generator up GUIDE ASM GUIDE ASM ...

Страница 53: ...53 FRAME BODY PANEL FRAME Remove 4 screws on the panel frame and then remove it FRAME BODY PANEL FRAME FOR LG TECHNICIAN Remove 3 screws on the frame body and then disassemble the frame body ...

Страница 54: ...ct your hands and arms from sharp edges when working To reduce the risk of Injury to persons adhere to all industry recommended safety procedures including the use of long sleeved gloves and safety glasses the front bulkhead the front bulkhead TUB DRUM FRONT DRUM ASSEMBLY CHANGING THE DRUM LAMP FOR LG TECHNICIAN 54 ...

Страница 55: ...austinstallation besure to disconnectthedryerfromitselectricalsupply Protectyour handsandarmsfromsharpedgeswhenworkinginsidethe cabinet Toreducethe riskofInjurytopersonsadhere to all industryrecommendedsafetyproceduresincludingtheuse of longsleevedglovesandsafetyglasses Note FOR LG TECHNICIAN 55 ...

Страница 56: ...cabinet cover and front bulkhead 3 Remove the drum assembly 4 Remove 2 screws and cover Air guide 5 Remove the bolt and washer 1 Open the top plate 2 Remove the cover cabinet and front bulkhead 3 Remove the drum assembly 4 Remove 7 screws 5 Pull the rear bulkhead towards the front 6 Remove the blower wheel Left hand thread 7 Disconnect the motor clamp and motor FOR LG TECHNICIAN 56 ...

Страница 57: ...e cover guide 2 Remove 2 screws 3 Remove the air duct 1 Disassemble the top plate 2 Remove the cover cabinet and front bulkhead 3 Remove the drum assembly and front bulkhead 4 Disconnect the air duct from the front bulkhead 5 Remove the rollers from the front bulkhead and rear bulkhead FOR LG TECHNICIAN 57 ...

Страница 58: ...trol Panel and Plate Assembly FOR LG TECHNICIAN A130 A140 A120 A110 A210 A211 A213 A150 In case before April 2015 Production If Part Assembly AGM75370001 is replaced Main PCB A130 Display PCB A120 have to be replaced all together ...

Страница 59: ...59 13 2 Panel Drawer Assembly and Guide Assembly K503 K508 K501 A090 A172 A171 A350 K507 K505 K502 A160 A170 K504 K506 A161 FOR LG TECHNICIAN 59 ...

Страница 60: ...R LG TECHNICIAN 13 3 1 Cabinet and Door Assembly Electric T ype A700 A310 A330 A450 A560 A570 A320 A530 A525 A540 A520 A600 A510 A500 A300 A131 A300 A410 A430 A460 A400 A420 A800 A325 A308 A610 60 A590 A390 ...

Страница 61: ...61 FOR LG TECHNICIAN 13 3 2 Cabinet and Door Assembly Gas type A390 A530 A525 A540 A520 A800 A600 A510 A500 A131 A550 A590 A700 A450 A410 A430 A460 A400 A420 A310 A330 A320 A300 A300 A325 A308 ...

Страница 62: ...Assembly ElectricType K120 K100 K130 K222 K221 K350 K240 F110 F120 K210 K540 K230 K510 K520 K251 K360 K251 K250 K530 K600 K650 K640 K560 K620 K310 K400 K420 K410 K140 F200 K250 K330 K320 K550 K610 K651 K340 K515 K224 K655 K660 K336 K335 62 F150 ...

Страница 63: ...00 K130 K222 K221 K350 K240 M160 M171 M170 M140 K210 K540 K230 K510 K520 K251 K360 K251 K250 K530 K600 K650 M141 M110 M250 M190 M181 M150 M240 K640 K660 K560 K620 K140 K250 K550 K610 K651 M210 M180 K340 K400 K420 K410 F200 K515 K655 K224 K320 K310 K330 K335 K336 63 M260 ...

Страница 64: ...64 MAR 2017 PRINTED IN KOREA MFL62119982 FOR LG TECHNICIAN ...

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