LG DLEX3370 series Service Manual Download Page 27

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Summary of Contents for DLEX3370 series

Page 1: ...AL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS PROPERLY AND TO PROVIDE QUALITY SERVICE SAFELY ON THESE DRYERS U S A Website http us lgservice com Canadian Website http lg ca MODEL DLEX 3570 DLGX 3571 DLEX 3370 DLGX 3371 1 ...

Page 2: ...hu zkhuh1 HVG pd gdpdjh ru zhdnhq wkh hohfwurqlf frqwuro dvvhpeo 1 Wkh qhz frqwuro dvvhpeo pd dsshdu wr zrun zhoo diwhu uhsdlu lv ilqlvkhg exw idloxuh pd rffxu dw d odwhu gdwh gxh wr HVG vwuhvv1 Use an anti static wrist strap Connect wrist strap to green ground connection point or unpainted metal in the appliance OR Wrxfk rxu ilqjhu uhshdwhgo wr d juhhq jurxqg frqqhfwlrq srlqw ru xqsdlqwhg phwdo l...

Page 3: ...PPLY 10 2 TEST 2 THERMISTOR TEST MEASURE WITH POWER OFF 10 3 TEST 3 MOTOR TEST 10 4 TEST 4 MOISTURE SENSOR 10 5 TEST 5 DOOR SWITCH TEST 10 6 TEST 6 HEATER SWITCH TEST ELECTRIC TYPE 10 7 TEST 7 GAS VALVE TEST GAS TYPE 10 8 TEST 8 MOTOR ASSEMBLY DC PUMP 10 9 TEST 9 GENERATOR ASSEMBLY 11 CHANGE GAS SETTING NATURAL GAS PROPANE GAS 12 DISASSEMBLY INSTRUCTIONS 13 EXPLODED VIEW 13 1 CONTROL PANEL AND PLA...

Page 4: ...Gas Dryer Please refer to the rating label regarding 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 137 5 lbs 62 4kg Power supply Pedestal 1 each Purchased Separately 4 ...

Page 5: ... Dry Levels Reversible Door Drum 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 137 5 157 5 12 10 5 5 5 Available Available Available Stainless Available Available...

Page 6: ...ryer 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 DLEX 3570 DLGX3571 DLEX3370 DLGX3371 6 LED Display Cycle Selector Knob Power Button Start Pause Button Dry Level Button Temp Control Button Time Dry Button Signal Button ...

Page 7: ...Do not 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 ...

Page 8: ...he appliance and 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 su...

Page 9: ...ting 11 2 inch 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...

Page 10: ... wire 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 gr...

Page 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...

Page 12: ... 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 assistance refer to section on Gas Requirements XG u Gz Gz Gm Gj GTG G G G G G GO Gk hU...

Page 13: ...turation 45 5 C 52 3 C 5 min 32 min 54 min 41 min 28 min 55 min 30 min Drying Cooling Wrinkle care Time Electro sensor Temp Control Default time Temp Control 3 Hr Load Motor Heater Temperature Control for each cycle Off Time 6 min On Time 10 sec Sensor dry Dry Level is set by users Manual dry Temperature control is set by users Default settings can be adjusted by users MEDIUM Saturation 45 5 C 60 ...

Page 14: ...ance value Resistance value 5Ω Heater case Hi limit Electric type 3 Outlet Thermostat Auto reset 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 Resistance value Resistance value 5Ω Blow housing Safety 4 Lamp holder Measure resistance of terminal to terminal Resistance value 80Ω 100Ω 6 Idler switch Measure resistance of the fo...

Page 15: ...ture condition 58 F 104F 10 40 C Resistance value 10Ω 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 kΩ Gas type 11 Igniter Measure resistance of terminal to terminal Resistance value 50 800 Ω Gas type 12 Flame Detect Measure resistance of terminal to termina...

Page 16: ...e of terminal to terminal Open at 203 41 F 95 5 C Close at 158 41 F 70 5 C Resistance value Continuity 1Ω 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 1Ω Gas type Gas funnel 16 ...

Page 17: ... Contact 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 17 ...

Page 18: ...HERMISTOR THERMISTOR 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 18 ...

Page 19: ... P N EBR62707645 Electric EBR62707646 Gas Main PCB Picture Electric Tab relay Blue Tab relay Black Tab relay White YL3 BL2 NA4 NA6 BL6 Gas Tab relay Blue Tab relay Black YL3 BL2 NA4 BL3 NA6 BL6 19 ...

Page 20: ... STATIC 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 ...

Page 21: ...ozzle when 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 ...

Page 22: ...nly displayed 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...

Page 23: ...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 characteristics of ...

Page 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 24 ...

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

Page 26: ...e 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 Safety...

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Page 28: ... WHUPLQDO 5HVLVWDQFH YDOXH NȖa NȖ 9DOYH 0HDVXUH UHVLVWDQFH RI IROORZLQJ WHUPL QDO 9DOYH WHUPLQDO 5HVLVWDQFH YDOXH NȖa NȖ 7KHUPLVWRU KHFN LI UHVLVWDQFH LV LQ WKH UDQJH RI 7DEOH ZKHQ PHDVXULQJ UHVLVWDQFH EH WZHHQ WHUPLQDOV DIWHU VHSDUDWLQJ KDUQHVV IURP WKHUPLVWRU DVVHPEO FRQQHFWRU 5HIHU WR 7DEOH Table 1 Resistance for Thermistor Temperature KT 6 2 Ș 4 5 ƃ KT 6 2 Ș 4 5 ƃ KT 6 2 Ș 4 5 ƃ Ȕ Ȕ Ȕ Ȕ Ȕ Ȕ Ȕ ...

Page 29: ...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 370ȕ Maximum Ą Close at 320ȕ ヴ 1Ω Unplug UNIT Test thermostats Hi limit Open at 203 41ȕ 95 5Ȕ Ą Close at 158 41ȕ 70 5Ȕ ヴ 5Ω Safety Open at 230 41ȕ 110 5Ȕ Ą Close Manual reset Retest heating circuit Defective gas valve Defective Igniter Defective Flame detector Defect...

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Page 31: ...tial 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 ヴ 1Ω 2 Lever push Close Resistance value Ą Unplug...

Page 32: ...rts you 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 C...

Page 33: ...y affect the accuracy of the results X Press START PAUSE button G 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 Z Press and hold the SIGNAL and TEMP CONTROL buttons and then press the POWER button G This button sequence activates the installation test The code will display if the activation is successful...

Page 34: ...ions may still be present in the exhaust system Refer to the Venting the Dryer section of this manual for complete exhaust system and venting requirements ˍ Check the Error Code before you call for service Error Code Possible Causes Solutions tE1G GtE2 ˍGG Temperature sensor failure ˍG G Turn off the dryer and call for service HS ˍGHumidity Sensor failure ˍG G Turn off the dryer and call for servi...

Page 35: ...ror Pump runs E5 Power 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 TYP...

Page 36: ... breaker YES NO Check 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 lin...

Page 37: ...ness 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 Temperat...

Page 38: ...ower Off 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 ...

Page 39: ...roller Check if control and the 6 pin connector are properly connected Replace controller Replace thermistor Check if resistance is in the range of Table 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 TEMP F 50 F 10 60 F 16 80 F 21 70 F 27 Air T...

Page 40: ...ntroller 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 thermost...

Page 41: ...ns the number 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 t ...

Page 42: ... with the MECHANICAL TEST below If the error displays and light comes on the door switch is working properly Test 5 k Gz G 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 ...

Page 43: ...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 to the hi limit ther...

Page 44: ...DC 10 sec after igniter off When measuring terminal resistance on valve 1 and valve 2 valves are more than1 5 2 5 k 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 ...

Page 45: ...id fire succession you could damage the main board YES NO Replace the DC pump Normal condition see page 26 for diagnostic test information Test 8 t Gh SGkjSGw Test 9 n Gh G 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 generator...

Page 46: ... mm for 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 serv...

Page 47: ...LOSE hs lGX pnup ly hs lGY mshtl kl lj OPEN nhzG hs lGz y j yl h Gz GAS VALVE FLOW START KEY PUSH DRYING VALVE 1 ON VALVE 2 OFF VALVE 2 ON IGNITER ON FLAME DETECT OPEN IGNITER TEMPERATURE ABOUT GAS IGNITION FLAME DETECT CLOSE VALVE 2 OFF uv uv lz lz 47 ...

Page 48: ...cal 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 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...

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

Page 50: ...crews 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 glasses 50 ...

Page 51: ...t cover 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 51 ...

Page 52: ...Remove 3 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 52 ...

Page 53: ...FRAME BODY PANEL FRAME Remove 4 screws on the frame body and then disassemble the frame body Remove 4 screws on the panel frame and then remove it BODY FRAME PANEL FRAME 53 ...

Page 54: ...ly 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 the front bulkhead TUB DRUM FRONT DRUM ASSEMBLY CHANGING THE DRUM LAMP 54 ...

Page 55: ...gthisexhaustinstallation besure to disconnectthedryerfromitselectricalsupply Protectyour handsandarmsfromsharpedgeswhenworkinginsidethe cabinet Toreducethe riskofInjurytopersonsadhere to all industryrecommendedsafetyproceduresincludingtheuse of longsleevedglovesandsafetyglasses Note 55 ...

Page 56: ...ve the 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 56 ...

Page 57: ...emove the 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 57 ...

Page 58: ...13 EXPLODED VIEW 13 1 Control Panel and Plate Assembly A210 A211 A130 A120 A140 A110 58 ...

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

Page 60: ...13 3 1 Cabinet and Door Assembly Electric Type A560 A570 A530 A525 A540 A520 A600 A510 A800 A610 A400 A420 A430 A390 A330 A310 A450 A460 A410 A590 A131 A305 A700 A320 A325 A300 A308 A500 60 ...

Page 61: ...13 3 2 Cabinet and Door Assembly Gas Type A390 A530 A525 A540 A520 A800 A600 A510 A500 A131 A550 A400 A420 A430 A330 A320 A310 A450 A460 A410 A305 A325 A300 A308 A590 A700 61 ...

Page 62: ...tric Type K120 K100 K130 K222 K221 K350 K240 F110 F120 F130 K210 K540 K230 K510 K515 K520 K251 K360 K251 K250 K530 K600 K650 F140 K640 K660 K655 K560 K620 K400 K420 K410 K140 F200 K250 K550 K610 K651 K340 K224 K320 K330 K310 K335 K336 62 ...

Page 63: ...K221 K350 K240 M160 M171 M170 M140 K210 K540 K230 K510 K520 K251 K360 K251 K250 K530 K600 K650 M141 M110 M250 M230 M190 M181 M150 M240 M220 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 ...

Page 64: ...JUL 2015 PRINTED IN KOREA P No MFL62119979 64 ...

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