LG DLEX4370 Series User manual

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MODEL : Electric
DLEX4370*
Gas
DLGX4371*
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modication, 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
Service Manual.
Copyright © 2016 - 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
CONFIDENTIAL

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1. SPECIFICATIONS .................................................................................................................. 4
2. FEATURES AND BENEFITS ................................................................................................... 6
3. INSTALLATION INSTRUCTIONS............................................................................................ 6
4. DRYER CYCLE PROCESS.................................................................................................... 11
5. COMPONENT TESTING INFORMATION ............................................................................. 12
6. MOTOR DIAGRAM AND SCHEMATIC................................................................................. 15
7. WIRING DIAGRAM............................................................................................................... 16
8. STEAM FUNTION ................................................................................................................. 18
8-1. STEAM CYCLE GUIDE.................................................................................................. 18
8-2. TROUBLESHOOTING .................................................................................................. 19
8-3. DISPLAY FAULT/ERROR CODES ................................................................................. 20
8-4. TROUBLESHOOTING WITH SYMPTOM....................................................................... 22
9. FLOW SENSOR FUNCTION................................................................................................. 29
9-1. FLOWSENSOR.............................................................................................................. 29
9-2. INSTALLATION CHECK................................................................................................ 30
9-3. TROUBLESHOOTING FOR FLOW SENSOR DRYER.................................................... 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. DISASSEMBLY INSTRUCTIONS ........................................................................................ 45
13. EXPLODED VIEW ............................................................................................................... 56
13-1. CONTROL PANEL AND PLATE ASSEMBLY............................................................... 56
13-2-1. CABINET AND DOOR ASSEMBLY: ELECTRIC TYPE ............................................ 57
13-2-2. CABINET AND DOOR ASSEMBLY: GAS TYPE ....................................................... 58
13-3-1. DRUM AND MOTOR ASSEMBLY: ELECTRIC TYPE................................................ 59
13-3-2. DRUM AND MOTOR ASSEMBLY: GAS TYPE ......................................................... 60
Copyright © 2016 - 2017 LG Electronics Inc. All
rights reserved. Only training and service purposes.

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ACCESSORIES
■Name : Electric and Gas Dryer
■Power supply : Refer to the rating label on the dryer.
Gas : 120 VAC Electric: 240VAC
■Size : 27 X 30 X 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

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DLEX4370* 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

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2FEATURES AND BENEFITS
3INSTALLATION 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.
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3-1. Connecting Electric Dryers
If this type is available 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)

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3-2 Connecting the gas supply

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21.8 150~800
800
Connect Inlet Hose