LG TDC70140E User Manual

CONDENSING DRYER

SERVICE MANUAL

READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.

CAUTION

MODEL : TD-C7014** Series

2

IMPORTANT SAFETY NOTICE

The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical,
electronic, and mechanical experience. Any attempt to repair a major appliance may result in personal injury 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.

To avoid personal injury, 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 !

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 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 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 failed electronic control assembly in anti-static bag, observe above instructions.

3

CONTENTS

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

2. FEATURES AND LOOK ..................................................................................................................................................5

3. PART IDENTIFICATION ..................................................................................................................................................6

4. PROGRAM CYCLE .........................................................................................................................................................7

5. INSTALLATION INSTRUCTIONS ...................................................................................................................................10

6. MAINTENANCE INSTRUCTIONS ..................................................................................................................................12

7. COMPONENT TESTING TIPS ........................................................................................................................................15

8. CONTROL LAY-OUT.....................................................................................................................................................17

9. WIRING DIAGRAM .....................................................................................................................................................18

10. TROUBLESHOOTING..................................................................................................................................................19

11. DIAGOSTIC TEST........................................................................................................................................................21

12. DISASSEMBLY INSTRUCTIONS....................................................................................................................................28

13. EXPLODED VIEW .......................................................................................................................................................38

SPECIFICATIONS

1

4

ITEMS TD-C70140E REMARK
MATERIAL & FINISHES
DRYING TYPE Condensation
WEIGHT 40 kg (Gross : 46 kg)
DIMENSION 595(W) x 850(H) x 600(D)
STANDARD DRYING CAPACITY 7.0 kg
CONTROL TYPE Electronic Control
POWER SUPPLY AC 220~230V, 50Hz (16A) LGEUK : 13A, LGEAP : 10A
MOTOR 250W
HEATER 2500W(22.5) LGEUK : 2350W, LGEAP : 1900W
LAMP 15W(125mA)
DOOR SWITCH 250V(10A)
THERMOSTAT 240V(25A)
CONTROL TYPE Electronic
DRUM CAPACITY 116 Liter
SAFETY DEVICES Thermal Fuse (Motor)

Over current protect (Motor)
Thermostat

SENSING TYPE Micom electronic Control

1. Temperature : 2 thermistors

2. Humidity : Electrode Sensor
FILTER Removable (Double screen)
DRUM SPEED 56~57 rpm
REVERSIBLE DOOR Available
DRUM Stainless steel
DRYER RACK Available
CHILD LOCK Available
TEMPERTURE CONTROL Available (Quick/Gentle buttons) Default : ON
IRON-DRY BUZZER Available Default : OFF
ANTI-CREASE COURSE Available
TIME-ADDING Available 3~19 hours
TIME DELAY Available
DRUM INTERIOR LIGHT Available
LED DISPLAY TIME DISPLAY

RUNNING STATUS INDICATOR
EMPTY WATER
CLEAN FILTER
CHILD LOCK

FEATURES AND LOOK

2

5

Energy

save

Ultra big Capacity Drum

LG Dryer has 7.0kg capacity which is the ultra big capacity.

Lower Energy Consumption

Energy is saved by Sirocco fan.

Reduced drying time

Drying time is shortened by efficient air flow mechanism and
optimized heater.

Innovative noise performance

Noise gets reduced by Noise-absorption & screening technology.

Easy of Use

Wide LED display using electric control.

Control Panel

Program selector

Start/Pause

LED Display

Time Display
Indicator lamps

Additional function
buttons

Quick/Gentle
Iron-dry Buzzer
Anti-Crease
Time Delay
Time-Adding

TD-C70140E/145E

Power

PART IDENTIFICATION

3

6

Accessories

1.Drain Hose Assembly (Purchased Separately) 2.Stacking kit Assembly (Purchased Separately)

P/No.:5001EL2001A

P/No.:5001EL2001C

Water container

Control panel

Door

Condenser Cover

Air ventilation grill

PROGRAM CYCLE

4

7

TD-C70140E/145E

Quick / Gentle

These are functioning to shorten or lengthen the
cycle time by increasing or decreasing
temperature.

Iron-dry Buzzer

Select Iron-dry Buzzer to alert you that your
clothes are approximately 80% dry.
This is useful when you want to remove
lightweight items in a mixed load to prevent
overdrying or remove partially dry items that
may need ironing.

NOTE : The Iron-dry Buzzer is only available
with the Cottons, Mixed Fabrics.

Time Delay

You can use the Time Delay function to delay
the finishing time of drying cycle.
Maximum Time Delay is 19 hours.

1. Turn the dryer on

2. Select cycle

3. Set time delay hour

4. Press Start/Pause button

Time-Adding

Press Time-Adding until the desired drying
time is displayed. Tap Time-Adding and the
time will change by 20 minute intervals.

NOTE : The Time-Adding function can be
used with Timed Drying.

Child-Lock

For the safety of your children, press “Quick”
and “Gentle” Buttons at the same time for
about 3 seconds.
You can see the “child lock” lamp is on, which
means this function is activated.

Anti-Crease

Anti-Crease is functioning to prevent creases
and rumples that are formed when the laundry
is not unloaded promptly at the end of drying
cycle. In this function, the dryer repeatedly
runs and pauses to the cycle end.
If the door is open during Anti-Crease process,
this function is cancelled. But in case of door
open during normal operation without
selecting Anti-Crease, this function will be
remembered and processed.

PROGRAM CYCLE

4

8

CAUTION!

If the load is less than 1kg, please use "Timed Drying Course"
Heat-sensitive fabrics including silk, underwears, lingerie should be used in delicates courses.
Otherwise, these clothes can cause undesirable drying results.

Standard

Program

Very Dry

Cupboard dry

Iron Dry

Very Dry

Cupboard dry

light Dry

Iron Dry

Warm (20min.)

Cool Air (20min.)

Delicates

Bed linen and table linen, tracksuits,
anorak, blankets

shirts, blouses and sportswear
Trousers, dressers, skirts, blouses

Terry toweling, tea towels, towel,
bed linen

Bath towels, tea towels,
underwear, cotton socks

T-shirts, trousers, underwear,
work clothes

Bed linen, table linen, towels, T-shirts
Polo shirts and work clothes

Bath towels, bath robes, dishcloths,
Quilted fabrics made of acrylic
All fabrics needing freshing, tumbles without heat

Silk, Women's thin clothes, lingerie

For thick and quilted fabrics which do not need to be ironed.

For fabrics which do not need to be ironed.
For fabrics which do need to be ironed.

For thick and quilted fabrics which do not need to be ironed.

For fabrics which do not need to be ironed.

For fabrics which do need to be ironed lightly, not completely.

For fabrics which do need to be ironed.

Small clothes & pre-dried laundry Normal
Normal fabrics using hot temperature for 20minutes

For fabrics which are heat-sensitive like synthetic fabrics.

Electronic Auto Dry Cycles
Mixed-Fabric cycles

(Note) press the "Gentle" button for heat-sensitive items

Cotton (Whites and coloreds)
(Note) press the "Gentle" button for heat-sensitive items

Time Cycles for selected length of time

Special Fabrics

Cycle Selection Table

PROGRAM CYCLE

4

9

Course Quick Gentle

Iron-dry Buzzer

Anti-Crease Time left

Cottons Very dry O O O O 120

Cupboard dry O O O O 115
Light dry O O O O 103
Iron dry O O O O 97

Mixed Fabric Very dry O O O O 53

Cupboard dry O O O O 48
Iron dry O O O O 41

Timed Drying

Warm 20min. OOXO20
Cool Air 20min. XXXO20

Special Fabric

Delicate X X O O 69

INSTALLATION INSTRUCTIONS

5

10

Level the dryer

Adjustable feet

Adjustable feetAdjustable feet

Raise Lower

1. Leveling the dryer is to prevent undesirable

noise and vibration.
When placing your dryer in an solid and level

area where water is not dripping and freezing,
flammable materials are not stored.

2. If the dryer is not properly level, adjust the front
leveling legs up and down as necessary.

Turn them clockwise to raise and
counterclockwise to lower until the dryer is not
wobbling both front-to-back and side-to-side.

Diagonal Check
When pushing down the edges of the washing machine,
the machine should not move up and down at all. (Please,

heck both of two directions)
If machine rocks when pushing the machine top plate
diagonally,adjust the feet again.

INSTALLATION INSTRUCTIONS

5

11

GROUNDING INSTRUCTION

This appliance must be grounded. In the event of
malfunction or breakdown, grounding will reduce
the risk of electric shock by providing a path of
least resistance for the electric current.
This appliance is equipped with a cord having an
equipment grounding conductor and a grounding
plug. The plug must be plugged into an appropriate
outlet that is properly installed and grounded in
accordance with all local codes and ordinances.

Additional Grounding Procedure

Some local codes may require a separate ground. In
such cases, the required accessory ground wire,
clamp and screw must be purchased separately.

Condensate Drain

The dryer can drain water without delivering to
water container. Water is directly pumped out of
the dryer.

Improper connection of the equipment
grounding conductor can result in a risk of
electric shock. Check with a qualified electrician
or a service person if you are in doubt as to
wether the dryer is properly grounded.

WARNING !

Installed Stacking kit­side view

Installed Stacking kit ­rear view

Stacking Kit

In order to stack this dryer on a LG washing
machine, a stacking kit is needed.

Built-in Installation

Your dryer can be built-in. You can fit the dryer
under-counter in a kitcken cabinet opening.
Opening dimensions are shown as follows.

For your safety, metal cover must be tightly fitted.
This must be placed by an experienced service

person and installed under a continuous worktop.

600

850

595

MAINTENANCE INSTRUCTIONS

6

12

Front Ventilation Grille

Vacuum the front ventilation grill 3~4 time a year to
make sure there must be no build-up of lints or dirts
which cause improper intake air flow.

Normally, condensed water is pumped up to water
container where water is collected until emptied.
Not only using water container, but water can be drained
out directly to drain hose especially when dryer is stacked
on top of washing machine.
With connecting kit for drain hose, you can simply change
water path and water reroute to the drainage facility.
Please follow the below steps.

Condensed water Drain-out

Moisture Sensor?

This device functions to sense the moisture
remaining contents of the laundry during operation
which means it must be cleaned all the time. The
main reason of cleaning this part is to remove the
build-up of lime scale on the surface of sensor. Wipe
the sensors inside drum (Shown in the picture).

1.Unscrew
cover.

3. Separate water
container hose
from the kit.

2. Take
connecting kit
out.

4. Connect drain
hose to the kit.

MAINTENANCE INSTRUCTIONS

6

13

Reverse the door

The door can be reversed to fit to your own
installation conditions. From the factory, the door
hinge is located on the right side.

1. This work may cause the injury of your
hands so you must be careful to handle
some sharp devices like torque screwdriver or
slotted screwdriver.

2. When the door is revered, the hand sticker
on the door also must be replaced.
Do not use a machine screwdriver.

Caution !

1. Unscrew the bottom hinge of the door first
and top hinge. And then place on the blanket
to prevent scratches.

2. Remove the
door lock
cover.

3. Remove the
door lock and
replace where
door lock
cover is

4. Detach both
hinge point
covers.

5. Unscrew two
door hinges.

6. Replace both
hinge point
covers where
door hinge is
located.

7. Replace the
door catch to
the reverse
location.

8. Screw the
door hinges.

MAINTENANCE INSTRUCTIONS

6

14

Change the Bulb

The bulb itself could be very hot when the dryer just
finishes its operation. So before changing the bulb,
be sure that the inside of the drum is cool down.

1. Open the door, put a hand into the drum and
grasp a bulb cover.

2. With bulb held by a hand, turn the bulb to the
clockwise direction with a certain amount of
force.

3. Separate bulb cover from the socket housing.

Power cord must be unplugged before this
work to avoid danger of electric shock.

Caution !

4. Remove the current bulb turning it to Counter
clockwise direction.
Be careful that it does not fall off.

5. Screw in the new bulb in the reverse
unscrewing direction.

Do not need any special tool for this work.
All steps can be done manually.

COMPONENT TESTING TIPS

7

15

1. Thermostat
(Manual type)

2. Thermistor
(Low temp.)

3. Heater,
Thermistor

4. Motor

5. Capacitor

6. Pump

Measure resistance of
Terminal to terminal

1)Open at 170°C (-10/+5°C)

Measure resistance of
Terminal to terminal

Measure resistance of
Terminal to terminal

Measure resistance of
Therminal to terminal

Measure resistance of
Terminal to terminal

Measure capacitance of
Terminal to terminal

Measure resistance of
Terminal to terminal

Measure resistance by pressing
button When resistance becomes

Resistance value < 5 Ω

Resistance value :
10K Ω±5% (at 25°C)

Resistance value :
Yellow/White : 28.96 ±1 Ω
Blue/White : 56.29 ±2 Ω

Resistance value :
200K Ω±5% (at 25°C)

Resistance value :
White/Blue : 24.8 ±2.5 Ω
Blue/Red : 21.5 ±2.0 Ω

Capacitance value : 10 ±0.2 µF

Resistance value :
205 ±10 Ω

Safety
Thermostat

Cover, Front

Heater

Component Test procedure Check result Remark

Thermistor

COMPONENT TESTING TIPS

7

16

7.Door S/W

8.Lamp holder

Measure resistance of the
Following terminal

1) Door switch knob :open
Terminal : “COM ”-“NC ”

(1-3)

Terminal : “COM ”-“NO ”

(1-2)

2) Door switch push :Push
Terminal : “COM ”-“NC ”

(1-3)

Terminal :“COM ”-“NO ”

(1-2)

Measure resistance of
terminal to terminal

Resistance value <1 Ω
Resistance value ÷

Resistance value ÷
Resistance value <1 Ω

Resistance value :
80 Ω~100 Ω
AC 230V,15W

The state that
knob is Pressed is
opposite to open
condition

Component Test procedure Check result Remark

COM

NC

NO

CONTROL LAY-OUT

8

17

PWB ASSEMBLY DISPLAY LAY-OUT

PWB ASSEMBLY LAY-OUT

WIRING DIAGRAM

9

18

With ELB model

ELECTRIC DRYER WIRING DIAGRAM

PUMP
SENSOR

PUMP
MOTOR

TRANS

WHITE

WHITE

COM

EARTH

BROWN

BROWN

BLACK

BLACK

BLUE

SWITCH

NO
CLOSE

DOOR

NC
OPEN

LAMP

RLY1

THERMAL
PROTECT

TH2

OUTER COIL

INNER COIL

HEATER

MOTOR

WIRE COIL

CAPACITOR

CW

WHT1

1

BL3

INLET THERMISTOR

4 3

NA4

2

1

4 3

2

1

BROWN BLACK

BLACK

WHITE

RED

L1

N

TR2TR1

ELECTRONIC CONTROL

RLY2

RLY3

OUTLET THERMISTOR

ELECTRODE

SENSOR

TH1

23

YL3

1 42

RD4

31

RLY4

BLUE

BLACK

RED

YELLOW

BROWN

BROWN

BROWN

BROWN

BROWN

BLUE

CCW

ORANGE

WHITE

WHITE

WHITE

SKY-BLUE

WHITH

ELB

GRAY

SKY BLUE

WHITE

PINK

THERMAL
FUSE

THERMOSTAT

3

2

1

BLUE

P/No.:3854EL4007B

1

2

231

231

21

2 1

1 2 3 41 2 3 2 1

WHT3

3

1

2

Pressing the CHECKING

DISPLAY

CHECKING

REMARK

“START/PAUSE”button

ACTION POINTS

TROUBLESHOOTING

10

19

1. This TEST should be used for Factory test/Service test. Do not use this DIAGNOSTICTEST other than specified.

2. Activating the Heater manually with Door open may trp the Thermostat attached to the Heater, therefore do not
activate it manually, (Do not press the door switch to operate the heater while the door is open)

Activating the diagnostic test mode

1. Unit must be in Standby (unit plugged in, display off)

2. Press “POWER”while pressing “Iron-dry Buzzer”and “Anti-crease” simultaneously .

Data Display

- Tested under normal operation mode.

- Press the “Quick” and “Anti-Crease” button as follows.

None

Once

Twice

3 times

4 times

5 times

6 times

7 times

8 times

Electric control

Motor

Motor

Motor +

Heater 1

Motor+Heater 1

+Heater 2

Motor off +

Pump on

Motor

Motor &

Heater off

Buzzer On
Control Off

70~245

Measured

Moisture Value

70~245

Measured

Moisture Value

Current

temperature

Current

temperature

Water level in

sump

70~237

Measured

Moisture Value

ELE

Check all LEDs for operation.

Motor run counterclockwise.
Displays Moisture Sensor Operation:If

moisture sensor is contacted with damp
cloth. The display number is below 180,
in normal condition.

Motor run clockwise.
Displays Moisture Sensor Operation:If

moisture sensor is contacted with damp
cloth. The display number is below 180,
in normal condition.

Motor run clockwise.
Heater run(Display the temperature of

low temperature themirstor located
under door.)

Motor run clockwise.
Heater run(Display the temperature of

high temperature thermistor located in
heater assembly.)

Pump run
Motor runs

Displays Moisture Sensor Operation:If
moisture sensor is contacted with damp
cloth.The display number is below 180,
in normal condition.

ELB Sensor
If ELB Sensor is in normal condition,
“ELE” is displayed.

Auto Off

No.of Button pressing Display

1 time Moisture data
2 times Temperature sensed by low temperature thermistor (located under door)
3 times Temperature sensed by High temperature thermistor (located in heater assembly)
4 times Remaining water data by water level sensor

TROUBLESHOOTING

10

20

Error Mode

: LED displays “ ” in case of the door open. The door must be closed and start

Button must be pressed for re-operation. (See the 22page)

Case 1. When black out or irregular current occurs.

- After removing ELB Connector, operate full time 1Cycle.
Case 2. EHE (ELE) message expresses continuously because of aging items.

- Change the old items.
: The resistance of thermistor not normally out put.

Case 1. The Circuit of thermistor is troubled.

- Repair the Circuit of thermistor.

Case 2. Thermistor is troubled.

- Replace the Thermistor.

Case 3. The Controller is troubled.

- Repair or replace the Controller.

Power-On

NO

YES

YES

NO

NO

NO

NO

YES

YES

Power-Off

Power button press

Plugged in

Start button Lock:
No buzzer

Door is not closed
(" ")display

Drum Belt broken

Check Filter sign
glitters

Water container
sign

Over clothes Load

Motor malfunction

Replace PCB

Replace Belt

Clean Filter
and Condenser

Empty Water
Container

Power button
Lock:No buzzer

Circuit breaker
trip

Low temperature

LED-SEG ON

drum not
Rotating

Door Open?

(Rotating)

Lamp on?

Lamp Broken
Connector malfunction

Check Heater Power

Thermostat trip

Check thermistor open/short

Fan

Properly
Drying?

Check Red 4P Housing

Check Test Mode

Check Thermistor resistence

Replace PCB

DIAGOSTIC TEST

11

21

NO

NO

YES

YES

NO

YES

123

WH3

Test 1 : ELECTRIC SUPPLY & CONTROL CHECK

Trouble Symptom : No power to the dryer or the controller

Measurement condition : Power is on.

[Caution] Electric shock. Please test after grounding check.

Power voltage is within
standard range
(AC 215V~245V)?

• Check after pulling white 3 pin
connector out from controller.

• Check the range of white pin

is within

AC 215~245V?

• Check connection of power
cord and harness assembly.

• Check white 1pin-black 1pin of
connector and secure that
range is between AC
215~245V?

Check the short of harness
assembly(white and white wire)
and the connection(WH3)

• Check the

- Circuit breaker

• Check or replace the
controller

• Check or replace the
power cord

In the case that the dryer is not working, when controller is
powered and display button is properly working, Check
RLY1 in the controller.

DIAGOSTIC TEST

11

22

123 123

WH3 YL3

Hook

YES

YES

YES

NO

NO

NO

NO

NO

YES

YES

Test 2 DOOR SWITCH / LAMP CHECK

Trouble Symptom : Malfunction of lamp operation and door switch

No operation of pump motor
Displays in case of the door closed.
The door must be closed and start.

Measurement condition : Check if they are working while being connected to power supply.

When door is opened, lamp
turns on?
(Tumbling stops)

When door is closed, lamp
turns off?

When "Start" button is on, the
dryer is working?

When door is opened or
closed, door switch hook is
not broken?

• With door closed, check voltage of
connector WH3 and YL3
which are pulled out from controller
in advance. The voltage range is
between AC 215~245V?

Check or replace Controller Assembly
Replace Harness and connector

• With door closed, check

voltage of connector WH3
and YL3 which are pulled
out from controller in
advance. The voltage range
is between AC 215~245V?

Check the short of harness
assembly(white and white wire)
and the connection(WH3)

Check door switch
movement.

- See the left picture.
Check and replace lamp.

- See the x page

• Door switch is working
normally.

• Replace door hook and
close the door.

• Door frame is distorted

• Check door switch

- See x page

• Check Harness

• Check and replace

Controller

DIAGOSTIC TEST

11

23

Capacitor

YES

YES

NO

NO

NO

YES

Test 3 Motor check

Trouble Symptom : Motor malfunction, ventilation error

Measurement condition : • Power cord is unplugged.

• Door is closed.

• Pre-Check door switch

(If door switch has contact problem, pump motor is not working.)

• When power is on, motor is
rotating.

• During operation, motor noise
is generated. And drum and
blower are not working.

With WH2, BL2 being unplugged
from Controller,

WH2 - BL2 resistance
WH2 - BL 2 resistance

measurement ranges 18 Ω~26 Ω??

• Check controller

- See page 15
(PCB Assembly Lay-out)

• Check or replace
Controller

- TR1, TR2 broken

• Check Capacitor volume.

- See component test page.

- See the left picture.

• Check belt is burst.

• Check structural

restriction.

• Check or replace Motor

- Check Motor TP

• Check Harness
connection

WH2 BL2

12 12

DIAGOSTIC TEST

11

24

123 123

WH3 RD3

YES

YES

NO

NO

Test 4 Heater check Trouble Symptom : Motor malfunction, ventilation error

Trouble Symptom : Heater is not working. Drying failure. The designated

temperature is not reached.

Measurement condition :

Power cord is unplugged.

With WH3, RD3 disconnected
from Controller,

WH3 - RD3 resistance

ranges 26 Ω~32 Ω ?

WH3 - RD3 resistance

ranges 53 Ω~59 Ω ?

When check thermostat to
Heater,

it is less than 1 Ω?

Manually get Thermostat
back (Press button )

1. Clean Condensing unit :

2. Check if Lint filter is
damaged or clogged

Heater On/Off occurs
frequently

• Check and replace
controller.

• Relay RTY2, RTY3

• See page 15, PCB

assembly lay-out.

• Replace Heater

• Check Harness

connection

DIAGOSTIC TEST

11

25

12

YL2

YES

NO

NO

YES

Test 5 Pump check

Trouble Symptom : Check if pump is out of order. "Empty water" Error signals.

Measurement condition : Power cord is unplugged.

(Measure with power on)
On QC test mode, when Pump
is on,
Electric noise doesn’t occur
Electric noise doesn’t occur
while pumping?

(Measure after power is off.)
With YL2 disconnected from
Controller,
YL 2 -YL 2 resistance
ranges 205 ±10 Ω ?

• Check Pump sensor

• Check and replace Controller

-TR3

• Disassemble Pump

- Check foreign objects

- Check impeller

restriction

- Check connection hose

clogged

• Check or replace pump

• Check Harness

connection

DIAGOSTIC TEST

11

26

4 3

2

GN1(RD4) GN4(WH4)

1

4 3

21

YES

NO

NO

NO

YES

YES

Test 6 Thermistor check

Trouble Symptom : Poor drying performance (over-drying or no drying). Abnormal

thermistor operation.

Measurement condition : Power cord is unplugged.

With CN1(RED4), CN4(WH4)disconnected
from Controller, check

TH-Heater
CN4 - CN4 resistance ranges table
data according to surrounding
temperature?
TH-Drum
CN1 - CN1 resistance ranges table
data according to surrounding
temperature?

• When measuring "TH-Heater"
Thermistor, they range Table
data ?

• When measuring "TH-Drum"
Thermistor, they range Table
data ?

• Check Harness

• Check and replace

Controller

• Replace "TH-Heater"
Thermistor

• Replace "TH-Drum"
Thermistor

10°C 19~111kΩ 40~50°C 113~75kΩ 5~4kΩ
20~30°C 250~180kΩ 11~8kΩ 50~60°C 75~50kΩ 4~2.5kΩ
30~40°C 180~113kΩ 8~5kΩ 60°C 50kΩ 2.5kΩ

Dryer
Temperature

Resistance

TH-Heater TH-Drum

Dryer
Temperature

Resistance

TH1 TH2

Remark

DIAGOSTIC TEST

11

27

40% ~ 60%

5% ~ 20%

-3 ~ +5 %

50 ~ 130

100 ~ 200

205 ~ 240

After Spinning

Iron dry

After normal dry

IMC DISPLAY NOTE

4 3

2

GN1(RD4)

1

Metal Wire

NO

NO

NO

YES

YES

Test 6 Thermistor check

Trouble Symptom : Drying Failure

Measurement condition : Power cord is unplugged.

With CN1(RED4)
disconnected from Controller,
CN1 -CN1 resistance is
unlimited?

With metal tape attached to
Sensor tips, CN1 -CN1
resistance is less than 10 Ω?

After damp clothes touch
Sensor tips,
the range are within the
below table when QA-test?

• Check Harness

• Check if Sensor tips

have foreign objects

- Refer to the left picture

• Check Harness

- Open, Connector is
disconnected

• Check and replace
Controller

DISASSEMBLY INSTRUCTIONS

12

28

TOP PLATE

1. Disassemble top plate by unscrewing 2
screws on the rear of the dryer.

2. After pulling drawer assembly out,
unscrew 1 screw.

3. After releasing 4 hooks of control panel
assembly, separate connectors from
PWB assembly for disassembling
control panel assembly.

DRAWER

DISASSEMBLY INSTRUCTIONS

12

29

DOOR

COVER, LOWER

COVER, SAFETY

1-1. Disassemble door assembly by

unscrewing 2 screws.

1-2. Disassemble lower cover by releasing

hook.

1-3. After releasing 2 levers, disassemble

safety cover.

2. Disassemble 3 screws.

3. Disassemble the case with a Philips
driver by releasing hook.

CASE

DISASSEMBLY INSTRUCTIONS

12

30

GRILLE

1. Disassemble grille by releasing 3

hooks.

2. Disassemble cabinet cover by releasing

9 screws.

3. Disassemble cabinet by unscrewing 2

at the top and 3 at the rear
(left and right are the same)

CABINET
COVER

CABINET

DISASSEMBLY INSTRUCTIONS

12

31

FRAME, BODY

1. Disassemble Body frame by
unscrewing 4 screws.

2. Disassemble Harness by unscrewing 2
Earth screws and disassemble
connectors.

3. Disassemble Holder and Spring by
pressing down and pulling the low hook
of holder.

HOLDER

DISASSEMBLY INSTRUCTIONS

12

32

COVER BASE

HOOK

1. Disassemble Blower cover by

unscrewing 2 screws.
(Note : Make sure that hook is properly
fit after assembling Cover Base
Wrong assembly will cause abnormal
noise.)

2. Disassemble Motor Supporter from

Base by rotating after unscrewing 2
screws.

3-1. Disassemble Air Guide.

Assembly direction of Air Guide should be
same as belows.
Wrong assembly will cause abnormal
noise.

Note !

Motor

Grille

GUIDE AIR

DISASSEMBLY INSTRUCTIONS

12

33

1. Disassemble Harness of Motor

2. Disassemble Duct by unscrewing.

3. Disassemble Nut by grasping the edge
of left motor shaft at the same time.

"*"marked 3 screws on the lower position
of Duct are only used for molding parts.
Be careful of not using them for other
holes. Otherwise, the holes will be
exposed to water leak.

Note !

DUCT

DISASSEMBLY INSTRUCTIONS

12

34

1. Disassemble Motor.

CAPACITOR

2. Disassemble Capacitor by unscrewing Nut.

3. Disassemble Heater Housing by

detaching inner Connector harness and
unscrewing.

4. Disassemble Heater by unscrewing 2

screws.

HOUSING

HEATER

DISASSEMBLY INSTRUCTIONS

12

35

FRAME
TOP

1. Disassemble Frame Top by unscrewing
4 screws. (Left and right are same)

2. Unscrew 4 screws at the left and right.

3. Unscrew 1 screw at the front.

BASE

COVER, FRONT

DISASSEMBLY INSTRUCTIONS

12

36

COVER FRONT

1. Disassemble Cover Front by pulling the

top area out.

2. Disassemble Hose from hose holder at

the base.

3. Disassemble Dispenser by unscrewing.

HOSE HOLDER

DISPENSER

DISASSEMBLY INSTRUCTIONS

12

37

BACK
COVER

1. Disassemble Back cover from the Base
by unscrewing 2 screws.

2. Disassemble Drum

3. Disassemble Drain Pump by
unscrewing 2 screws.

DRAIN
PUMP

EXPLODED VIEW

13

38

A100

A110

A111

A120

A160

A114

A115

A113

A112

A130 A140

A150

: NON SVC Parts

: SVC Parts

Control Panel & Top plate Assembly

EXPLODED VIEW

13

39

: NON SVC Parts

: SVC Parts

B101

B107

B105

B103

B104

B102

B106

B108

B100

B141

B140

B121

B136

B120

B122

B123

B130

B131

B128

B150

B142

B129

B127

B126

B125

B134

B133

B132

B160

B124

Cabinet Cover & Door Assembly

EXPLODED VIEW

13

40

C100

C120

C110

C130

C140

C160

C142

C150

C180

C170

C200

C240

C230

C210

C220

C250

C260

C270

C280

C290

C300

C190

: NON SVC Parts

: SVC Parts

Base & Motor Assembly

EXPLODED VIEW

13

41

D152

D210

D230

D155

D200

D190

D151

D157

D140

D160

D131

D170

D180

D130

D220

D201

D153

D156

D124

D150

D100

D120

D121

JOURNAL BEARING

SERVICE KIT

D122

D123

: NON SVC Parts

: SVC Parts

Back Cover & Drum Assembly

REPLACEMENT PARTS LIST

42

A100 TOP PLATE ASSEMBLY 3301ER1001F 1
A110 HARNESS, PWB 6877EL1016A 1
A111 DISPENSER 4924EL1001A 1
A112 CONNECTOR (MECH), HOSE 4932EL3001A 1 BASE
A113 HOSE, PUMP 5214EL3001C 1 OVER FLOW
A114 HOSE, PUMP 5214EL3001B 1 DRAIN
A115 CONNECTOR (MECH), HOSE 4932EL3002A 1 DISPENSER
A120 PANEL ASSEMBLY, DRAWER 3721EL1016A 1
A130 KNOB, ROTARY 4940ER3015B 1
A140 PANEL ASSEMBLY, CONTROL 3721EL1015B 1 PANEL+BUTTONS
A150 PWB(PCB) ASSEMBLY, DISPLAY 6871EL1005A 1
A160 PWB(PCB) ASSEMBLY, MAIN 6871EL1006A 1
B100 DOOR ASSEMBLY 3581EL1002A 1
B101 HINGE ASSEMBLY 4775EL2001A 2
B102 BODY 3070EL1001A 1
B103 LATCH, HOOK 4026EL3008A 1
B104 SCREW TAPPING, COUNTER SUNK HEAD 1TCL0403132 2 LATCH HOOK
B105 SCREW, DRAWING 1SZZEL4001A 2 HINGE
B106 GASKET 4986EL1002A 1
B107 CAP, HOLE 5006EL3008A 1
B108 CAP, HOLE 5006EL3006A 2
B120 COVER ASSEMBLY, FRONT 3551EL1001A 1
B121 BODY 3070EL2001A 1
B122 CONNECTOR ASSEMBLY 6631EL2003B 1 THERMISTOR
B123 CONNECTOR ASSEMBLY 6631EL1003B 1
B124 SERVICE PARTS 383EEL3001A 1 SLIDE+FELT+SEAL
B125 COVER, LAMP 3550EL3005A 1
B126 HOLDER 4930ER4001A 3
B127 FRAME, FRONT COVER 3210EL1002A 1
B128 LAMP ASSEMBLY 6913EL3001B 1
B129 HOLDER 4930EL3017A 1
B130 SWITCH ASSEMBLY, SAFETY 6601EL3001B 1
B131 GASKET 4986EL1003A 1
B132 THERMISTOR ASSEMBLY 6323EL2001C 1
B133 SCREW, DRAWING 1SZZEL3002C 2
B134 SCREW, DRAWING 1SZZEL3002B 3
B136 GASKET 4986EL2003A 1
B140 COVER ASSEMBLY, CABINET 3551EL1002A 1
B141 CAP, HOLE 5006EL3007A 2
B142 CAP, COVER 5006EL3005A 1
B150 LATCH ASSEMBLY 4027EL3001A 1
B160 GRILLE 3530EL1001A 1
C100 COVER, LOWER 3550EL2006A 1
C110 CASE 3110EL2001A 1
C120 COVER ASSEMBLY, SAFETY 3551EL2001A 1
C130 CONDENSER ASSEMBLY 5403EL1001A 1
C140 BASE ASSEMBLY, CABINET 3041EL1002A 1
C142 LEG ASSEMBLY 4779EA3001B 4
C150 SPRING, COIL 4970EL3003A 1
C160 HOLDER 4930EL3015A 1

LOC DESC TD-C70140E QTY REMARKS

CAUTION : Before replacing any part of these components read carefully the safety precautions in this manual

Nate : S (Safety Parts), AL (Alternative Parts)
LG MODEL : TD-C70140E

REPLACEMENT PARTS LIST

43

C170 NUT, DRAWING 1NZZEL4002B 1 LEFT TURN
C180 BLOWER, IMPELLER 5834EL2002A 1 COOLING
C190 SUPPORTER ASSEMBLY 4981EL1001A 1
C200 MOTOR ASSEMBLY, WM 4681EL1003A 1
C210 BLOWER, IMPELLER 5834EL2001A 1 DRYING
C220 NUT, DRAWING 1NZZEL4002A 1 RIGHT TURN
C230 SLIDE 4276EL3002A 1
C240 CUSHION 4850EL3002A 1
C250 PUMP ASSEMBLY, DRAIN 5859EL2001A 1
C260 SENSOR ASSEMBLY 6501EL3003A 1
C270 HOSE ASSEMBLY, CONNECTOR 5215EL3001A 1 WITH HOSE CLAMP
C280 CONNECTOR ASSEMBLY 6631EL2001A 1
C290 COVER ASSEMBLY, BASE 3551EL2002A 1
C300 GUIDE, AIR 4974EL3004A 1
D100 BELT, POLY-V 4400EL1001A 1
D120 TUB ASSEMBLY, DRUM 3045EL1003A 1
D121 LIFTER 4432EL1003A 2
D122 SERVICE PARTS 383EEL3003A 1
D123 WASHER, DRAWING 1WZZEL3001A 1
D124 WASHER, DRAWING 1WZZFR4148A 1
D130 CABINET 3090EL1001B 1 SPONGE
D131 CABINET 3090EL1001A 1
D140 CAPACITOR ASSEMBLY 6121EL2001B 1
D150 COVER ASSEMBLY, BACK 3551EL1003A 1
D151 HOLDER 4930EL1002A 1
D152 PACKING ASSEMBLY 3921EL1001A 1
D153 SUPPORTER, TOP TABLE 4980EL2005A 1 RIGHT TURN
D155 SUPPORTER, TOP TABLE 4980EL2005B 1 LEFT
D156 SUPPORTER, HOLDER 4980EL4001A 1
D157 SCREW, DRAWING 1SZZEL3002A 8
D160 GUIDE, AIR 4974EL3006A 1
D170 DUCT ASSEMBLY 5209EL1005B 1
D180 POWER CORD ASSEMBLY 6411ER1001K 1
D190 CAP, COVER 5006EL3010A 1
D200 HEATER ASSEMBLY 5301EL1002C 1
D201 THERMOSTAT ASSEMBLY 6931EL3001D 1
D210 HOLDER 4930EL3020A 1
D220 FRAME, BODY 3210EL1001A 1
D230 FRAME, TOP 3210EL1003A 2

LOC DESC TD-C70140E QTY REMARKS

CAUTION : Before replacing any part of these components read carefully the safety precautions in this manual

Nate : S (Safety Parts), AL (Alternative Parts)
LG MODEL : TD-C70140E

P/No.:3828EL9001CJUL. 2005 PRINTED IN KOREA