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59

13-3-2. Drum and Motor Assembly: Gas type

K120

K100

K130

K350

K240

M160

M171

M170

M140

K210

K540

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

K515

K655

K320

K310

K330

K335

K336

63

K507

K505

K509 K502

K720

K411

K410

F200

K400

K740

K742

K743

K741

K221

K230

M260

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Summary of Contents for DLEX4370 Series

Page 1: ...f 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 Service Manual Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes CONFIDENTIAL ...

Page 2: ...2 2 ...

Page 3: ...RYER 31 10 DIAGNOSTIC TEST 32 10 1 TEST 1 120V AC ELECTRICAL SUPPLY 33 10 2 TEST 2 THERMISTOR TSET MEASURE WITH POWER OFF 36 10 3 TEST 3 MOTOR TEST 37 10 4 TEST 4 MOISTURE SENSOR 38 10 5 TEST 5 DOOR SWITCH TEST 39 10 6 TEST 6 HEATER SWITCH TEST ELECTRIC TYPE 40 10 7 TEST 7 GAS VALVE TEST GAS TYPE 41 10 8 TEST 8 MOTOR ASSEMBLY DC PUMP 42 11 CHANGE GAS SETTING NATURAL GAS PROPANE GAS 43 12 DISASSEMB...

Page 4: ... 38 11 16 inch Dryer capacity Normal Cycle IEC 7 4 cu ft 225 lb 10 2 kg Steam Cycle IEC 7 4 cu ft 8 lb 3 6 kg Weight Gas 140 2lbs 63 6kg Electric 138 2 lbs 62 7 kg Specifications are subject to change by manufacturer See page 6 of this manual for usage instruction Dryer rack 1 each Y connector Hose Included accessories Optional accessory ...

Page 5: ...EX4370 DLGX4371 7 4cu ft Powder coating Blue White Stainless Silver Black STS Chrome 120 V 60 Hz 11 5 A 1 12W 0 08A 10 High Low Off Stainless 27 X 30 X 38 11 16 inch 29 1 2 X 30 3 4 X 44 3 4 inch 140 2 138 2 ...

Page 6: ...STALLATION 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 6 ...

Page 7: ...ailable at your home you will be connecting to a fused disconnect or circuit breaker box If this type is available at your home you will be connecting to a fused disconnect or circuit breaker box 3 wire direct 4 wire direct 5 12 7 cm 1 2 5 cm 5 12 7 cm ...

Page 8: ...8 8 ...

Page 9: ...9 9 3 2 Connecting the gas supply ...

Page 10: ...10 10 21 8 150 800 800 Connect Inlet Hose ...

Page 11: ...11 ...

Page 12: ...amp Schematic If the lamp is turned on by connecting is normal It is not measured by multimeter because V is 3 2V th Measure resistance of the following terminal 1 Door open Terminal COM NC 1 3 Terminal COM NO 1 2 2 Door closed Terminal COM NC 1 3 Terminal COM NO 1 2 ...

Page 13: ...13 13 ...

Page 14: ...14 14 Ω Ω Electric type 15 Inlet valve Measure resistance of the Following terminal Left picture plate ...

Page 15: ...15 15 Ω Ω Ω Ω When checking Component be sure to turn Power off then do voltage discharge sufficiently m ...

Page 16: ...16 16 Heater Relay Black Heater Relay Blue AG Heater Relay White YL3 WH4 BL2 NA7 NA6 NA4 ...

Page 17: ...17 17 Heater Relay Black Heater Relay Blue YL3 WH4 BL2 NA7 NA6 NA4 BL3 ...

Page 18: ...3 lbs STEAM FRESH STEAM FRESH 20 minutes O Dry comforter Single 1 each Shirts 5 each REDUCE STATIC STEAM FREASH 10 minutes Dry Shirts 8 lbs 18 Items EASY IRON STEAM FRESH 12 minutes Dry Shirts Shirts 5 each STEAM OPTION REDUCE STATIC HEAVY DUTY COTTON TOWELS NOMAL PERM PRESS DELICATES O Wet Varies by selected cycle 8 lbs 18 Items EASY IRON O Wet Varies by selected cycle Shirts 5 each TIME DRY REDU...

Page 19: ...19 19 ...

Page 20: ...pump valve is less than 10 in the test mode 5 error is only displayed in the test mode Check the connection between harness wire and connector place the water supply pump PS Wire Connection Black Whi Wire Connection is wrong Wire Connection is loose rify proper connection of the power cord Electric dryer only PS means power supply EE EE OM Error EE OM operation is adnormal EE error is displayed on...

Page 21: ...21 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 ...

Page 22: ...22 Electric Dryer Table 1 Resistance for Thermistor Temperature WH6 OR ...

Page 23: ...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...

Page 24: ...24 Gas Dryer ...

Page 25: ...25 Gas Dryer Table 1 Resistance for Thermistor Temperature WH6 OR ...

Page 26: ...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...

Page 27: ...27 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 ...

Page 28: ...eTM 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 4 Bars NO Bars CLOGGED Check and Clean Duct Duct OK The Dryer can work NORMAL 1 2 ...

Page 29: ...eat will be turned on and the temperatures in the drum will be measured 4 During the two minute test cycle monitor the FLOW SENSETM display on the control panel If the Flow Sense indicator text lights up the exhaust system is restricted If the indicator text remains dark the exhaust system is adequate Other problems may also be shown with error codes Refer to the next page for error code details a...

Page 30: ...30 dryin ...

Page 31: ...31 ...

Page 32: ...32 25 120V AC Electrical Supply ...

Page 33: ...33 26 t r c t c o m h t t ...

Page 34: ...g Black Check the matching color between harness wire and tap relay Black housing black tap relay Color Connection of Tap Relay with PCB ASSEMBLY Gas Harness Remark PCB Tap Relay 1 1 2 Blue Wire Black Wire Connector Housing ...

Page 35: ...35 28 Thermistor Test Measur e with Power Off ...

Page 36: ...36 29 Ω Ω Ω Ω Ω Motor Test Drum does not rotate fan does not turn heater does not function page 12 l i page 15 i ...

Page 37: ...37 PCB ...

Page 38: ...38 PCB ...

Page 39: ...39 element ...

Page 40: ...40 33 GAS V alve test Gas T ype GAS Valve Test Gas Type Ω dc ute dc dc s o l i ...

Page 41: ...41 DC pum ...

Page 42: ...pipe assembly Replace natural gas orifice with propane gas orifice Opened Closed Orifice Initially Changing orifices and gas valve adjustments improperly can result in an explosion and or fire Conversion must be made by a qualified technician Warning The burner is set for natural gas at the factory The propane orifice conversion kit is sold as a service part to authorized servicers only Part numbe...

Page 43: ...43 36 ...

Page 44: ...y 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 pl...

Page 45: ...B assembly Display 5 Disassembly 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 ...

Page 46: ...ect 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 Remove 2 screws on the panel frame and then ...

Page 47: ...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 the front bulkhead the front bulkhead TUB DRUM FRONT DRUM ASSEMBLY CHANGING THE DRUM LAMP 54 ...

Page 48: ...Protectyour handsandarmsfromsharpedgeswhenworkinginsidethe cabinet Toreducethe riskofInjurytopersonsadhere to all industryrecommendedsafetyproceduresincludingtheuse of longsleevedglovesandsafetyglasses Note Use real foil duct tape Do not use the inexpensive canvas and adhesive tape It will dry out leak lint and present a fire hazard DRYER EXHAUST CHANGE ...

Page 49: ... Disassemble the top plate 2 Remove the cover cabinet 3 Remove the filter 1 Remove the cover guide 2 Remove 2 screws 3 Remove the air duct 1 Remove the filter 2 Remove 3 screws 3 Remove the cover grid 4 Disconnect the electrode sensor ...

Page 50: ... 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 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 bulkh...

Page 51: ... 1 Press and hold the release ring to remove the hose from the nozzle 2 Remove the 7 screws from the rear cover 3 Lift the rear tub off the support and pull it out 4 Replace the hose and assemble the cable tie holder in the rear tub ...

Page 52: ...5 Remove the hose in generator 6 Remove the cable tie holder in the rear tub 7 Replace the hose and assemble the cable tie holder in the rear tub 8 After connection the hose to the generator install the clamp ...

Page 53: ... the thermistor screw from the generator 3 Remove the steam harness cable tie holder in the rear tub 4 Replace the steam harness and assemble the cable tie holder in the rear tub 5 Assemble the steam harness 6 Attach the thermistor and the screws to the generator ...

Page 54: ...ver and screws 2 To remove the rear tub take off the steam generator first Then remove the rear tub 5 Assemble the cover and screws 3 Remove the bracket from the steam generator 4 Reassemble the steam generator and bracket ...

Page 55: ...55 50 13 1 Control Panel and Plate Assembly A140 A210 A211 A213 A110 A120 ...

Page 56: ...et and Door Assembly Electric Type A700 A310 A330 A450 A320 A600 A300 A300 A410 A430 A460 A400 A420 A800 A325 A308 60 A590 A390 A560 A570 A530 A525 A540 A520 A500 A131 A495 A130 K730 A330 A320 A310 A305 A325 A300 A308 ...

Page 57: ...57 13 2 2 Cabinet and Door Assembly Gas type A390 A800 A600 A550 A590 A700 A450 A410 A430 A460 A400 A420 A310 A330 A320 A300 A300 A325 A308 A495 A530 A525 A540 A520 A500 A131 A130 K730 ...

Page 58: ... K100 K130 K350 K240 F110 F120 K210 K540 K510 K520 K251 K360 K251 K250 K530 K600 K650 K640 K560 K620 K310 K140 K250 K330 K320 K550 K610 K651 K340 K515 K655 K660 K336 K335 62 K507 K505 K509 K502 K720 K411 K410 F200 K400 K740 K742 K743 K741 K221 K230 F150 ...

Page 59: ... M170 M140 K210 K540 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 K515 K655 K320 K310 K330 K335 K336 63 K507 K505 K509 K502 K720 K411 K410 F200 K400 K740 K742 K743 K741 K221 K230 M260 ...

Page 60: ...60 MAR 2017 PRINTED IN KOREA MFL69290405 FOR LG TECHNICIAN ...

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