LG TD-C70040E User manual

1
CONDENSING DRYER
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : TD-C7004** Series
CAUTION

2
A R. 2004 RINTED IN KOREA
/No.:3828EL9001A

2
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 !
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.
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
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. DIASSEMBLE INSTRUCTIONS ...........................................................................................28
13. EXPLODED VIEW ..............................................................................................................38
CONTENTS

4
SPECIFICATIONS
1
ITEMS
MATERIAL & FINISHES
DRYING TY E
WEIGHT
DIMENSION
STANDARD DRYING CA ACITY
CONTROL TY E
OWER SU LY
MOTOR
HEATER
LAM
DOOR SWITCH
THERMOSTAT
CONTROL TY E
DRUM CA ACITY
SAFETY DEVICES
SENSING TY E
FILTER
DRUM S EED
REVERSIBLE DOOR
DRUM
DRYER RACK
CHILD LOCK
TEM ERTURE CONTROL
BUZZER
ANTI-CREASE COURSE
FAVOURITE COURSE
TIME DELAY
DRUM INTERIOR LIGHT
LED DIS LAY
TD-C70040E
Condenstation
40 kg (Gross : 46 kg)
595(W) x 850(H) x 600(D)
7.0 kg
Electronic Control
AC 220~230V, 50Hz (16A)
250W
2500W(22.5)
15W(125mA)
250V(10A)
240V(25A)
Electronic
116 Liter
Thermal Fuse (Motor)
Over current protect (Motor)
Thermostat
Micom electronic Control
1. Temperature : 2 thermistors
2. Humidity : Electrode Sensor
Removable (Double screen)
56~57 rpm
Available
Stainless steel
Available
Available
Available (High/Low temp buttons)
Available
Available
Available
Available
Available
TIME DIS LAY
RUNNING STATUS INDICATOR
EM TY WATER
CLEAN FILTER
CHILD LOCK
REMARK
LGEUK:13A, LGEA :10A
LGEUK:2350W, LGEA :1900W
Default : ON
Dafault : OFF
3~19 hours

5
FEATURES AND LOOK
2
Ultra big Capacity Drum
IntelloDryer has 7.0kg capacity which is the ultra big capacity.
Lower Energy Consumption
Energy is saved by Sirocco & Radial 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.
Energy
save
Control Panel
Additional function buttons
• High Temp/Low Temp
• Buzzer-Off
• Anti-Crease
• Favourite
• Time Delay
LED Display
• Time Display
• Indicator lamps
Start/PauseProgram selector

6
PART IDENTIFICATION
3
Panel, ControlDrawer
(Water container
Door
Cover, Lower
Grille
1. Drain Hose Assembly
/No. : 5001EL2001A /No. : 3751EL1002B
/No. : 5001EL2001C
2. Dryer Rack Assembly
3. Stacking kit Assembly ( urchased Seperately)
Accessories

7
4PROGRAM CYCLE
High Temp. / Low Temp.
These are functioning to shorten or lengthen
the cycle time by increasing or decreasing
temperature.
Buzzer Off
This is about buzzer sound on/off.
After power is on and you select cycle, buzzer
will sound when you press a certain button on
the panel.
If you don’t like to hear that sound, just press
Buzzer Off button. The Buzzer is then turned -off.
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.
Favourite
If there is some cycle you would like to make
based on your own drying habit, use “Favourite”.
Once favourite cycle is stored, you can repeatedly
use next time before changing the stored setting.
For instance, you turn power on and select Extra
Dry in Cotton Cycle and Low temp and Anti-
Crease in series and then lastly press “Favourite”
until the dryer beeps. It’s about 3 seconds. That’s
all you have to do.
The next time, when turning the dryer on and
pressing “Favourite” you can see the above
options you select displays on the panel.
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
Child Lock
For the safety of your children, press High Temp
and Low Temp buttons at the same time for about
3 seconds. You can check this function by seeing
the dryer display “ ” on LED window.

8
PROGRAM CYCLE
4
Cycle Selection Table
Electronic Auto Dry Cycles Standard
rogram
Mixed-Fabric cycles
Note: press the "Low temp." button for heat-sensitive items
Bed linen and table linen, tracksuits, For thick and quilted fabrics which do not need to be ironed. Very Dry
anorak, blankets
shirts, blouses and sportswear For fabrics which do not need to be ironed. Cupboard dry
Trousers, dressers, skirts, blouses For fabrics which do need to be ironed. Iron Dry
Cotton (Whites and coloureds)
Note: press the "Low temp." button for heat-sensitive items
Towelling, dressing gowns For thick and quilted fabrics. Extra Dry
and bed linen
Terry towelling, tea towels, towel, For thick and quilted fabrics which do not need to be ironed. Very Dry
bed linen
Bath towels, tea towels, For fabrics which do not need to be ironed. Cupboard dry
underwear, cotton socks
T-shirts, trousers, underwear, For fabrics which do need to be ironed lightly, not completely. Light Dry
work clothes
Bed linen, table linen, towels, T-shirts For fabrics which do need to be ironed. Iron Dry
olo shirts and work clothes
Bed linen, table linen, towels For fabrics which do need to be pressed. Machine Iron
Time Cycles for selected length of time
Bath towels, bath robes, dishclothes, Small clothes & pre-dried laundry Normal Warm (20min.)
Quilted fabrics made of acrylic Normal fabrics using hot temperature for 20minutes
Small clothes & pre-dried laundry
Normal fabrics using hot temperature 40minutes Warm (40min.)
All fabrics needing freshing, tumbles without heat Cool Air (20min.)
sweater, delicate, fabrics, sportshoes For the fabrics you do not want tumble dry. Rack dry
Special Fabrics
Wool For wool fabrics. Wool
Silk, Women's thin clothes, lingerie For fabrics which are heat-sensitive like synthetic fabrics. Delicates
CAUTION !
If the load is less than 1kg, please use "Timed Drying Course“
Your wool should be used in Wool program and heat-sensitive fabrics including silk, underwears,
lingerie should be used in delicates courses.
Otherwise, these clothes can cause undesirable drying results.

9
PROGRAM CYCLE
4
Extra dry
Very dry
Cupboard dry
Light dry
Iron dry
Maching Iron dry
Extra dry
Cupboard dry
Iron dry
20 min.
40 min.
Cool-Air
Rack
Wool
Delicate
O
O
O
O
O
O
O
O
O
O
O
X
X
X
X
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
121
117
115
109
103
101
123
87
79
20
40
20
40
73
69
O
O
O
O
O
O
O
O
O
O
O
X
X
X
X
High Temp. Low Temp. Buzzer Off Anti-Crease Time left
Cottons
Mixed Fabric
Timer
Special
Fabric
Course

10
5INSTALLATION INSTRUCTIONS
Level the dryer
1. Levelling 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
levelling 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,
check both of two directions)
If machine rocks when pushing the machine top plate
diagonall , adjust the feet again.
Adjustable feet
Adjustable feetAdjustable feet
Raise Lower

11
5INSTALLATION INSTRUCTIONS
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.
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 kicken 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.
WARNING !
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.
600
850
595
Installed Stacking kit-
side view
Installed Stacking kit -
rear view

12
MAINTENANCE INSTRUCTIONS
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.
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.
2. Take
connecting kit
out.
3. Separate water
container hose
from the kit.
4. Connect drain
hose to the kit.
Condensed water Drain-out
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.

13
MAINTENANCE INSTRUCTIONS
6
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.
Caution !
1. This work may cause the injury of your
hands so you must be careful to handle
some sharp devices like tork 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.
4. Detach both
hinge point
covers.
5. Unscrew two
door hinges.
6. Replace both
hinge point
covers where
door hinge is
located.
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
located.
7. Replace the
door catch to
the reverse
location.
8. Screw the
door hinges.

14
MAINTENANCE INSTRUCTIONS
6
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.
Caution !
ower cord must be unplugged before this
work to avoid danger of electric shock.
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.
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.
3. Seperate bulb cover from the socket housing.
Do not need any special tool for this work.
All steps can be done manually.

15
COMPONENT TESTING TIPS
7
Component Test procedure Check result Remark
1. Thermostat
(Manual type)
Measure resistance of
Terminal to terminal
1) Open at 170°C (-10/+ °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 < Ω
Safety
Thermostat
Cover, Front
Heater
Resistance value :
10KΩ±% (at 2 °C)
Resistance value :
Yellow/White : 28.96±1Ω
Blue/White : 6.29±2Ω
Resistance value :
200KΩ±% (at 2 °C)
Resistance value :
White/Blue : 24.8±2. Ω
Blue/Red : 21. ±2.0Ω
Capacitance value : 10±0.2µF
Resistance value :
20 ±10Ω
3. Heater,
Thermistor
4. Motor
. Capacitor
6. Pump
2. Thermistor
(Low temp.)
Thermistor

16
COMPONENT TESTING TIPS
7
Component Test procedure Check result Remark
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 < 1Ω
Resistance value ÷ ∞
Resistance value ÷ ∞
Resistance value < 1Ω
The state that
knob is Pressed is
opposite to open
condition
Resistance value :
80Ω~100Ω
AC 230V, 1 W
COM
NC
NO

17
CONTROL LAY-OUT
8
PWB ASSEMBLY DISPLAY LAY-OUT
PWB ASSEMBLY LAY-OUT
OPTION PART
SEGMENT DISPLAY
OP4 OP OP6 OP7 OP8 OP9
TD-C70040E x x x x x x
18:88
6871EC1114*
Option Part
Op2 Op9
MODEL P/NO
Option Part

18
WIRING DIAGRAM
9
ELECTRIC DRYER WIRING DIAGRAM
Without ELB model
With ELB model

19
TROUBLESHOOTING
10
1. This TEST should be used for Factory test/Service test. Do not use this DIAGNOSTI TEST 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 “Buzzer” and “Anti-crease” simultaneously.
Data Displa
-Tested under normal operation mode.
- Press the “High Temp.” and “Anti-Crease” button as follows.
Pressing the
“START/PAUSE”button
No. of Button pressing Displa
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 off
Motor
Motor &
Heater off
Buzzer On
ontrol Off
18:83~18:87
70~245
Measured
Moisture Value
70~245
Measured
Moisture Value
urrent
temperature
urrent
temperature
Water level in
sump
70~237
Measured
Moisture Value
ELE
1 time
2 times
3 times
4 times
Moisture data
Temperature sensed by low temperature thermistor (located under door)
Temperature sensed by High temperature thermistor (located in heater assembly)
Remaining water data by water level sensor
heck 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 themistor 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
CHECKING
ACTION DISPLAY CHECKING
POINTS REMARK
Model
TD- 70040E/41E/45E
TD- 70040E/45E
TD- 70042E/46E
TD- 70042E/46E
TD- 70040E/45E
Model
Europe
England
Europe
England
Australia
Displa
18:83
18:84
18:85
18:86
18:87