LG DLEX4270 /01 Series Bedienungsanleitung

PB 1

ELECTRIC & GAS DRYER

SERVICE MANUAL

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 : Electric Gas

DLEX4270*/01 DLGX4271*/01

FOR LG TECHNICIAN

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.

‘

CONFIDENTIAL

2 3

To avoid injury to persons, 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.

WARNING !

WHAT TO DO IF YOU SMELL GAS:

IMPORTANT SAFETY NOTICE

The information in this service guide is intended for use by individuals possessing skill and experience in

electrical, electronic, and mechanical appliance repair. Any attempt to repair a major appliance may result

in injury to persons, 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.

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.

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

nished, 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 nger 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 the failed electronic control assembly in an anti-static bag, observe the instructions above.

Do not try to light a match, or cigarette, or turn on

any gas or electrical appliance.

Do not touch any electrical switches. Do not use

any phone in your building.

Clear the room, building, or area of all occupants.

Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions carefully.

If you cannot reach your gas supplier, call the fire

department.

FOR LG TECHNICIAN

2 3

1. SPECIFICATIONS ............................................................................................................... 4

2. FEATURES AND BENEFITS ...............................................................................................6

3. INSTALLATION INSTRUCTIONS ........................................................................................6

4. DRYER CYCLE PROCESS ................................................................................................13

5. COMPONENT TESTING INFORMATION .........................................................................14

6. MOTOR DIAGRAM AND SCHEMATIC .............................................................................17

7. WIRING DIAGRAM ............................................................................................................18

8. STEAM FUNCTION ............................................................................................................19

8-1. STEAM CYCLE GUIDE ............................................................................................19

8-2. TROUBLESHOOTING ..............................................................................................20

8-3. DISPLAY FAULT/ERROR CODES ............................................................................21

9. FLOW SENSOR FUNCTION .............................................................................................22

9-1. FLOW SENSOR .......................................................................................................22

9-2. INSTALLATION TEST (EXHAUST CHECK) ............................................................23

10. DIAGNOSTIC TEST ........................................................................................................25

10-1. TEST 1 120V AC ELECTRICAL SUPPLY ............................................................26

10-2. TEST 2 THERMISTOR TEST - MEASURE WITH POWER OFF .........................29

10-3. TEST 3 MOTOR TEST .........................................................................................30

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 AND GUIDE ASSEMBLY........................................49

13-3-1. CABINET AND DOOR ASSEMBLY: ELECTRIC TYPE .......................................50

13-3-2. CABINET AND DOOR ASSEMBLY: GAS TYPE ..................................................51

13-4-1. DRUM AND MOTOR ASSEMBLY: ELECTRIC TYPE ......................................... 52

13-4-2. DRUM AND MOTOR ASSEMBLY: GAS TYPE ....................................................53

FOR LG TECHNICIAN

rights reserved. Only training and service purposes.

4 5

1SPECIFICATIONS

See page 7

Stacking kit (1 each)

Purchased Separately

ACCESSORIES

Model DLEX4270*/01 DLGX4271*/01

Name Electric and 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)

1116

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

8egapeeS

Pedestal (1 each)

Purchased Separately

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4 5

Sound levels

High / Medium / Low / Off

ITEM DLEX4270*/01 DLGX4271*/01 REMARK

Blue White / Stainless Silver

Powder coating

Color

Top Plate

Door Trim

Power

Consumption

Motor

Heater

Lamp

Gas Valve

AG Heater

Pump

Control Type

Drum Capacity

Weight (lbs) - Net/Gross

Number of Programs

Number of Dry Options

Number of Temperature Controls

Moisture

Temperature

Number of 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.

146 / 149

Available

Stainless

Available

Packing (WxDxH)

AC 240 V (Electric Model)

AC 208 V (Electric Model)

DC 12V

DC 120V(Gas Model)

DC 120V(Steam Model)

DC 9V(Steam Model)

Thermistor

Electrode sensor

27” X 30” X 38 / ”

1116

29 / ” X 30 / ” X 44 / ”

123434

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6 7

2FEATURES AND BENEFITS

DLEX4270*/01, DLGX4271*/01

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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6 7

Peel the protective paper from the tape on

the side bracket.

Secure the side bracket to the washer with

a screw on the back of the bracket. Repeat

Steps 2, 3, and 4 for the other side.

Place the dryer on top of the washer by

placing the legs as shown. Be careful not to

pinch fingers between the washer and dryer.

Slide the dryer back against the stop on the

side rail.

Fit the side bracket firmly to the side of the

top plate by attaching the double-faced tape

to the top plate as picture shown.

Insert the front rail of the stacking kit. Push

the front rail back against the stops on the

side brackets.

•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 warning can result in

serious physical injury and damage to the

appliance.

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

Stacking kit

Attach the front bracket to the side rails with

a screw on each side.

To ensure safe and secure installation, please observe the instructions below.

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8 9

Pedestal Installation Instructions

•Drawer divider (1) •Wrench (1)

•Screws (18) † •T-clips (4) ††

•Phillips screwdriver

•Wrench (supplied)

† Dryer installation only uses 8 screws

†† For dryer only

To ensure safe and secure installation, please

thoroughly follow the instructions below.

•Incorrect installation can cause serious accidents.

•The appliances are heavy. Two or more people are

required when installing the pedestal. There is a

risk of serious back injury or other injuries.

•Do not allow children to play in or on the drawer.

There is a risk of suffocation or injury.

•Do not step on the handle. There is a risk of serious injury.

•If appliances are already installed, disconnect them

from all power, water, or gas lines and from draining or

venting connections. Failure to do so can result in

electrical shock, fire, explosion, or death.

•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

Retract fully

Retainer

T-clip

Make sure the leveling feet of the dryer are

fully retracted.

NOTE: The 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 sure the screws on the pedestal align with the

holes in the retainers, then install 4 screws on each

side to securely attach the appliance to the pedestal.

NOTE: If the screws are not installed properly, noise

and vibration may result.

Move the appliance to the desired location.

Securely tighten all locknuts by hand.

NOTE: Noise and vibration may result if locknuts are not

tightened.

Be sure to connect the appliances to all water, power,

or gas lines and draining or venting connections before

operation.

If there is excessive vibration during the first operation

after installation, slightly adjust the leveling feet.

Loosen the locknuts on all 4 leveling feet of the

pedestal until you can turn them with the wrench.

Turn clockwise to raise or counterclockwise to lower

until the pedestal is level and all 4 feet are solidly

against the floor.

For dryer

For washer/combo

Raise Lower

Locknut

FOR LG TECHNICIAN

8 9

Use the instructions under option 2 or 3 if your

home has a 3-wire receptacle (NEMA type 10-30R).

Use option 2 if local codes and ordinances permit

the connection of a chassis ground to the neutral

connector. If this is not permitted, use option 3.

Review the following options to determine the appropriate electrical connection for your home

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

Important :Grounding through the neutral conductor

is prohibited for (1) new branch-circuit installations,

(2) mobile homes, and (3) recreational vehicles, and

(4) areas where local codes prohibit grounding through

the neutral conductor.

Prepare minimum 5 ft(1.52 m) of length in order for

dryer to be replaced.

First, peel 5 inch (12.7 cm) of covering material from

end. Make a 5 inch of ground wire bared. After cutting

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 will be

connecting to a fused disconnect or circuit breaker

box

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.

(2.5 cm)

(12.7 cm)

3-wire direct

4-wire receptacle

(NEMA type14-30R)

3-wire receptacle

(NEMA type10-30R)

4-wire direct

(12.7 cm)

4-wire connection : Direct wire

(2.5 cm)

(12.7 cm)

FOR LG TECHNICIAN

10 11

Important : Grounding through the neutral conductor

is prohibited for (1) new branch-circuit installations,

(2) mobile homes, and (3) recreational vehicles, and

(4) areas where local codes prohibit grounding through

the neutral conductor.

Prepare minimum 5 ft(1.52 m) of length in order for

dryer to be replaced.

First, peel 3 1/2inch (8.9 cm) of covering material

from end and bare 1 inch from the ends.

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. 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.

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.

(2.5cm)

(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 ground screw. Remove the

neutral ground wire of appliance and connect it to

center screw.

4. Make sure that the strain relief screw is tightened

and that all terminal block nuts are tight and the

power cord is in the right position.

a b

: 4-wire connection with

a power supply cord.

lf 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-prong plug

Neutral prong

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