LG GCWF1069CS1 User manual

WASHING MACHINE
SERVICE MANUAL
MODEL : GCWF1069CS1/GCWF1069CD1/GCWF1069QS1/
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, 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
GCWF1069QD1/GCWF1069CS3/GCWF1069CD3/
GCWF1069QS3/GCWF1069QD3

2
CONTENTS
1.IMPORTANT SAFETY INSTRUCTIONS ............................................................................. 3
2. SPECIFICATIONS ............................................................................................................... 4
3. FEATURES AND TECHNICAL EXPLANATION .............................................................. 5~6
4. PARTS IDENTIFICATION ..................................................................................................... 7
5. INSTALLATION INSTRUCTIONS .................................................................................. 8~13
6. OPERATION ................................................................................................................ 14~16
7. WIRING DIAGRAM/PROGRAM CHART/PCB LAYOUT ............................................. 17~18
8.TROUBLESHOOTING .................................................................................................. 19~22
8-1. BEFORE PERFORMING SERVICE ......................................................................... 19
8-2. QC TEST MODE . ..................................................................................................... 19
8-3. HOW TO CHECK THE WATER LEVEL FREQUENCY ............................................ 19
8-4. HOW TO CHECK THE RPM ..................................................................................... 19
8-5. ERROR DISPLAY ............................................................................................... 20~21
8-6. DISPENSER .............................................................................................................. 22
9. DIAGNOSIS AND TROUBLESHOOTING .................................................................. 23~35
10. DISASSEMBLY INSTRUCTIONS .............................................................................. 36~44
11. EXPLODED VIEW ....................................................................................................... 45~48
11-1. CABINET & CONTROL PANEL ASSEMBLY - COIN TYPE ................................... 45
11-2. DRUM & TUB ASSEMBLY ...................................................................................... 46
11-3-1. CABINET&CONTROL PANEL ASSEMBLY(FOR SINGLE MODEL) ................... 47
11-3-2. CABINET&CONTROL PANEL ASSEMBLY(FOR STACK MODEL) ..................... 48
Copyright © 2016 - 2017 LG Electronics Inc. All rights
reserved. Only training and service purposes.

3
1. IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE
!
WARNING
For your safety, the information in this manual must be followed to minimize the risk of fire
or explosion, electric shock, or to prevent property damage, injury to persons, or death.
IMPORTANT SAFETY INSTRUCTIONS
• Read all instructions before using the washer.
• Do not wash articles that have been previously
cleaned in, washed in, soaked in, or spotted with
gasoline, dry cleaning solvents, or other flammable
or explosive substances, as they give off vapors
that could ignite or explode.
• Do not add gasoline, dry cleaning solvents, or
other flammable or explosive substances to the
wash water. These substances give off vapors that
could ignite or explode.
• Under certain conditions, hydrogen gas may be
produced in a hot water system that has not been
used for 2 weeks or more. HYDROGEN GAS IS
EXPLOSIVE. If the hot water system has not been
used for such a period, before using the washing
machine, turn on all hot water faucets and let the
water flow from each for several minutes. This will
release any accumulated hydrogen gas. As the gas
is flammable, do not smoke or use an open flame
during this time.
• Do not allow children to play on or in the washer.
Close supervision of children is necessary when
the washer is used near children.
• Before the washer is removed from service or
discarded, remove the door to prevent children
from hiding inside.
• Do not install or store the washer where it will be
exposed to the weather.
• Do not tamper with controls.
• Do not repair or replace any part of the washer or
attempt any servicing unless specifically
recommended in the user-maintenance
instructions or published user-repair instructions
that you understand and have the skills to carry
out.
• See Installation Instructions for grounding
requirements.
• ALWAYS follow the fabric care instructions
supplied by the garment manufacturer.
• Do not place items exposed to cooking oil in your
washer. Items contaminated with cooking oils may
contribute to a chemical reaction that could cause
a load to catch fire.
• Do not use fabric softeners or products to
eliminate static unless recommended by the
manufacturer of the fabric softener or product.
WARNING : To reduce the risk of fire, electric shock, or injury to persons when using the washer, follow
basic precautions, including the following:
SAVE THESE INSTRUCTIONS
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 electric current. This appliance is equipped with
a cord having an equipment-grounding conductor and 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.
• Do not use an adapter or extension cord.
• Do not remove ground prong.
• If you don’t have the proper outlet, consult an electrician.
GROUNDING INSTRUCTIONS
WARNING: Improper connection of the equipment-grounding conductor can result in risk of electric shock. Check
with a qualified electrician or serviceman if you are in doubt as to whether the appliance is properly
grounded. Do not modify the plug provided with the appliance - if it does not fit the outlet, have a proper
outlet installed by a qualified electrician.
!
!

2. SPECIFICATIONS
4
MODEL GCWF1069CS1/GCWF1069CD1/
GCWF1069QS1/GCWF1069QD1
GCWF1069CS3/GCWF1069CD3/
GCWF1069QS3/GCWF1069QD3
COLOR
BLUE WHITE STAINLESS SILVER
POWER SUPPLY 120V, 60Hz
PRODUCT WEIGHT 190 lbs. (87kg)
ELECTRIC POWER
CONSUMTION
WASHING
500W
DRAIN MOTOR 80W
CIRCULATION
MOTOR 45W
FUSE 250V, 12A (Time Delay)
REVOLUTION SPEED WASH
45 rpm
SPIN 1150 RPM (Default : 1150 RPM)
CYCLES 4
OPTIONS ADD SUPER WASH Cycle (OPL:Custom PGM)
OPERATIONAL WATER PRESSURE 20 - 120 psi (138 ~ 827 kPa)
CONTROL TYPE Electronic
WASH CAPACITY 3.73 cu.ft (IEC : 4.3 cu.ft)
DIMENSIONS 686 mm (W) X 767 mm (D) X 983 mm (H), 1337mm (D with door open)
DOOR SWITCH TYPE PTC + Solenoid
WATER LEVEL 10 steps (by sensor)
LAUNDRY LOAD SENSING Incorporated
ERROR DIAGNOSIS Incorporated

5
3. FEATURES & TECHNICAL EXPLANATION
3-1. FEATURES

Direct Drive System
The advanced Brushless DC motor directly drives the drum
without belt and pulley.

The Tilted Drum and Extra Large Door Opening
Tilted drum and extra large door opening make it possible
to load and unload easily.

Ultra Capacity
The larger drum enables not just higher head drop and stronger centrifugal
force, but also less tangling and wrinkling of the laundry. Heavier loads, such
as king size comforters, blankets, and curtains, can be washed.

SEE-THROUGH DOOR AND BIG DOOR
You can see the laundry throughout the cycle.
Stainless steel drum offers extreme durability.
 STAINLESS STEEL DRUM
 Magnetic Door Plunger
Safely and conveniently secure the door slightly ajar with the magnetic door plunger. This will
promote air circulation and allow the interior of the machine to dry. To use this feature, after the
load has been removed, do not close the door completely. When the magnetic door plunger
comes into contact with the metal washer cabinet, it will secure the door slightly open allowing the
interior of the washer to dry.

TUB CLEAN
Regular cleaning of the tub on a monthly basis using TUB CLEAN can help
keep the tub clean and fresh.

6

(-)
(+)
4. PARTS IDENTIFICATION
Drain Hose
Dispenser
(for single model)
Dispenser
(for stack model)
Door
Lower Cover Cap
Drain Plug Drain Pump Filter
Adjustable Feet
Power Plug
Control Panel
Shipping Bolts (4)
Cold Water Inlet
Hot Water Inlet
Air Vent for Safety
· If the supply cord is damaged,
it must be replaced by the
manufacturer or an authorized
service technician in order t
avoid a hazard.
Name: Front-loading Washing Machine
Power supply: 120V, 60Hz
Size: 686 mm (W) X 767 mm (D) X 983 mm (H), 1337mm (D with door open)
27"(W) X 30 3/16"(D) X 3811/16"(H), 525/8" (D with door open)
Weight: 190 lbs. (87 kg)
Wash capacity: 3.73 cu.ft (IEC:4.3 cu.ft)
Spin speed: 1150 rpm max.
Permissible water pressure: 20 - 120 psi (138 ~ 827kPa)
Back of Washer
Specifications subject to change by manufacturer.
Note
Accessories
Hot and Cold Water
Hoses
Elbow Bracket
(for securing
drain hose)
Tie Strap
(for securing drain
hose)
Hole cap (4)
(for securing auto
dosing hole)
Wrench
(for removing shipping
bolts and adjusting
leveling feet)
Caps (4)
(for covering shipping
bolt holes)
Harness
(for connecting auto
dosing)
Non-skid pads
Drum
7
Magnet Door
Plunger
(see page 5)
Auto dosing hole

8
5. INSTALLATION INSTRUCTIONS
Unscrew the 4 bolts with the wrench supplied
Take out the 4 bolts by twisting the braces slightly
※ Keep the
4 bolts and the wrench for future use
(Whenever the appliance is transported, the
shipping bolts and braces must be replaced.)
Close the holes with the caps supplied.
The appliance is fitted with shipping bolts to prevent
internal damage during transportation.
Packing and all shipping bolts must be removed
before using the washer.
☞ When unpacking the base, be sure to remove
the additional packing support in the middle of
the base packing.
 Shipping bolts
• Washer is heavy. Two or more people may be needed to install and move the appliance.
Failure to do so can result in back or other injury.
• Store and install the washer where it will not be exposed to temperatures below freezing or exposed to
outdoor weather conditions. Failure to follow this warning can cause serious injury, fire, electric shock, or
death.
• This appliance must be properly grounded for personal safety. Properly ground washer to conform with
all governing codes and ordinances. Failure to follow this warning can cause serious injury, fire, electric shock,
or death.
• Do not install the washer in humid spaces to reduce the risk of electric shock. Failure to follow this
warning can cause serious injury, fire, electric shock or death.
• The base opening must not be obstructed by carpeting when the washer is installed on a carpeted floor.
• Do not remove ground prong. Do not use an adapter or extension cord. Plug into a grounded 3 prong outlet.
Failure to follow this warning can cause serious injury, fire, electric shock or death.
• Keep the area underneath and around your appliances free of combustible materials such as lint,
paper, rags, chemicals, etc. Failure to do so can result in fire.
• 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. Failure to follow all of the safety warnings in this manual could
result in property damage, injury to persons or death.
 Removing shipping bolts
Wrench
CAP
!
WARNING

9
 Installation clearances
The location must be large enough to open
the washer door completely.
 Washer dimensions
The following dimensions shown are for the minimum
spacing allowed.
Additional spacing should be considered for
installation and servicing.
• Additional clearances might be required for wall,
door, and floor moldings.
•
Additional spacing of 4"(10 cm) on back,
1"(2.5 cm) on all sides of the washer is
recommended to reduce noise transfer.
Companion appliance spacing should also be
considered.
 Minimum installation spacing for
recessed area installation.
Front view
Side view
52 5/8"
133.7 cm
30 3/16"
(76.7cm)
30 3/16"
76.7 cm
52 5/8"
133.7 cm
30 3/16"
(76.7cm)
30 3/16"
76.7 cm
52 5/8"
133.7 cm
30 3/16"
(76.7cm)
30 3/16"
76.7 cm

10
 Installation of Auto dosing system
 Auto dosing interface
CH DetergentInput period
£Main wash Main wash phase
¤Bleach Main wash (Remaining w
ashing me: 5 Minutes)
¥SoenerFinal rinse phase
¦Pre-wash Pre-wash phase
ʹ͹ ΅ΪΡΖ ΈΚΣΖ
ʹΠΝΠΣ
΄ΚΘΟΒΝ
΅ΪΡΖ
ྙ;ΒΚΟΈΒΤΙ΃ΖΕ +
ྚͳΝΖΒΔΙ ͳΝΦΖ +
ྛ΄ΠΗΥΖΟ ΖΣ ΊΖΝΝΠΨ +
ྜ΁ΣΖΈΒΤΙ ΀ΣΒΟΘΖ +
ྜྷͳΣΠΨΟ +
ྠͳΝΒΔΜ -
123 4 5 8
Skip
Auto dosing interface
Back of Washer
Wire Color
Black: Jump wire (- signal)
Red: Main Wash (+ si gnal)
Blue: Bleach (+ si gnal)
Yellow: Soener (+ signal)
Oran ge: Pre-Wash (+ signal)
Brown: Not Used (+ si gnal)
1
2
3
4
※ Dosing time should be set according to the flow rate of the pump. We recommend not exceeding 30mL
for detergent and 50mL for Bleach/Softener. Refer to detergent/chemical instructions to determine the
dosing time for optimal performance.

11
• Must be within 60 (1.5 m) of either side of the
washer. Do not overload the outlet with more
than one appliance.
• Time-delay fuse or circuit breaker is recommended.
NOTE: It is the personal responsibility and obligation
of the customer to have a proper outlet
installed by a qualified electrician.
Level floor
• Allowable slope under entire washer is 1°.
• To minimize noise and vibration, the washer
MUST be installed on a solidly constructed
floor.
• Carpeting and soft tile surfaces are not
recommended.
• Never install the washer on a platform or
weakly supported structure.
NOTE: A firm, solid floor is even more critical to a
front-loading washer than to a top-loader.
If your floor is wood and/or frame
construction, you may need to reinforce it.
Front-loaders use substantially faster spin
speeds than top-loaders, causing greater
vibration. If the floor is not solid, your washer
will vibrate. You will hear and feel the
vibration throughout your house.
Connect the power plug to the wall outlet.Avoid connecting several electric devices, as
doing so may cause a fire.
CONNECT POWER PLUG
INSTALL THE APPLIANCE
ON A FLAT AND FIRM SURFACE

12
 Level adjustment
• Leveling the washing machine properly prevents
excessive noise and vibration.
Install the appliance on a solid and level floor surface,
preferably in a corner of the room.
• If the floor is uneven, adjust the adjustable feet as
required. (Do not insert pieces of wood, etc. under the
feet.)
NOTE: Extend the feet no more than necessary to
level the washer. The more the feet are
extended, the more the washer will vibrate.
• Make sure that all four feet are stable and resting on
the floor and then check that the appliance is
perfectly level (Use a level).
• After the washer is level, tighten the lock nuts up
against of the base of the washer. All lock nuts must
be tightened.
• It is critical to adjust the feet perfectly. This must be
done while the washer is spinning with a load. Use
the wrench (supplied) to adjust the feet until there is
no vibration. Then tighten the lock nuts to prevent
further adjustment.
NOTE: If there is vibration and noise during the
spin cycle, re-check the leveling of the
washer, adjust the feet as required, and
tighten the lock nuts securely to prevent
changes in adjustment.
Run the washer with a test load to make
certain your washer is properly leveled. Put
an unbalance weight part in the machine.
You can check noise and/or vibration on
high speed spin rpm through the QC test
mode
(Refer to page 20).
When the machine spins at high speed,
verify that it is stable. If not, adjust the feet
accordingly.
※ Diagonal Check
When pushing down the edges of the washing machine
top plate diagonally, the machine should not move up
and down at all. (Please, check both directions.)
Lock nut
Adjustable feet
Lock nut
Adjustable feet
Lock nut
Adjustable feet
Lock nut
Adjustable feet
Lock nut
Adjustable feet
Lock nut
Adjustable feet

13
Electrical connection
WARNING! Concerning the power cord
· Do not use an extension cord or double adapter.
· If the supply cord is damaged, it must be replaced by a qualified person in order to avoid a hazard.
· If the machine will not be used for an extended time, unplug it, shut off the water supply and open the door to
provide ventilation.
· Connect the machine to a grounded outlet in accordance with current wiring regulations.
· The appliance must be positioned so that the plug is easily accessible.
· If fuse blows, it can be replaced with FUSE ASSEMBLY (Fusing requirements: Ceramic 250V 12A)
· Water supply pressure must be between
20 psi and 120
psi (138~827kPa).
· Do not crossthread when connecting the inlet hose to
the valve.
· If the water supply pressure is more than 120psi, a
pressure reducing device should be installed.
· Two sealing washers are supplied with the water inlet
hoses to prevent water leaks.
· Check for leakage of washing machine connections
by turning the tap completely on.
· Periodically check the condition of the hose and
replace the hose if necessary.
· Make sure that there is no kink in the hose and that it
is not crushed.
· Be sure that the two water input ports are connected
to the correct water faucets. The connector for hot
water is colored red; the cold is blue.
Connecting the water supply hoses
Most appliances recommend they be placed upon a dedicated circuit; that is, a single outlet circuit which powers only that
appliance and has no additional outlets or branch circuits. Check the specification page of this owner's manual to be
certain.
Do not overload wall outlets. Overloaded wall outlets, loose or damaged wall outlets, extension cords, frayed power cords,
or damaged or cracked wire insulation are dangerous. Any of these conditions could result in electric shock or fire.
Periodically examine the cord of your appliance, and if its appearance indicates damage or deterioration, unplug it,
discontinue use of the appliance, and have the cord replaced with an exact replacement part by an authorized servicer.
Protect the power cord from physical or mechanical abuse, such as being twisted, kinked, pinched, closed in a door, or
walked upon. Pay particular attention to plugs, wall outlets, and the point where the cord exits the appliance.
NOTE: Use new hoses when installing a washing machine. Replace them periodically.
Old hoses should not be used.
Do not install your washing machine in a room where temperatures below freezing may occur.
Frozen hoses may burst under pressure. The reliability of the electronic control unit may be impaired
at temperatures below the freezing point.
If the appliance is delivered in the winter months and temperatures are below freezing,
store the washing machine at room temperature for a few hours before putting it into operation.

14
 Installation of drain hose
about 78"(2.0m)
about 45"(1.1m)
about 70"(1.8m)
about 45"(1.1m)
about 70"(1.8m)
about 55"(1.4m)
max 39"(1.0m)
min 24"(0.6m)
max 39"(1.0m)
min 24"(0.6m)
about 78"(2.0m)
about 45"(1.1m)
about 70"(1.8m)
about 45"(1.1m)
about 70"(1.8m)
about 55"(1.4m)
max 39"(1.0m)
min 24"(0.6m)
max 39"(1.0m)
min 24"(0.6m)
about 78"(2.0m)
about 45"(1.1m)
about 70"(1.8m)
about 45"(1.1m)
about 70"(1.8m)
about 55"(1.4m)
max 39"(1.0m)
min 24"(0.6m)
max 39"(1.0m)
min 24"(0.6m)
a˛˛˛˛ ˛˛˛˛˛˛˛˛ ˛
a˛˛˛˛ ˛˛˛˛˛˛˛˛ ˛
a˛˛˛˛ ˛˛˛˛˛˛˛˛ ˛
a˛˛˛˛ ˛˛˛˛˛˛˛˛ ˛
a˛˛˛˛ ˛˛˛˛˛˛˛˛ ˛
a˛˛˛˛ ˛˛˛˛˛˛˛˛˛
˛a˛ ˛˛˛˛˛˛˛˛ ˛
˛˛˛ ˛˛˛˛˛˛˛˛ ˛
˛a˛ ˛˛˛˛˛˛˛˛ ˛
˛˛˛ ˛˛˛˛˛˛˛˛ ˛
• Place the end of the drain hose in the hole of the
floor drain system.
• When installing the drain hose at a sink, secure it so it
cannot break away and cause flooding and damage.
• The drain hose should not be placed higher than
96 in. from the bottom of the washer.
• Properly securing the drain hose will protect the floor
from damage due to water leakage.
• Properly securing the drain hose will protect the
floor from damage due to water leakage.
about 78"(2.0m)
about 45"(1.1m)
about 70"(1.8m)
about 45"(1.1m)
about 70"(1.8m)
about 55"(1.4m)
max 39"(1.0m)
min 24"(0.6m)
max 39"(1.0m)
min 24"(0.6m)
about 78"(2.0m)
about 45"(1.1m)
about 70"(1.8m)
about 45"(1.1m)
about 70"(1.8m)
about 55"(1.4m)
max 39"(1.0m)
min 24"(0.6m)
max 39"(1.0m)
min 24"(0.6m)
• Make sure that the hose is not twisted.
• Do not submerge the end of the hose.

15
6. OPERATION
1 25
4 3
CONTROL PANEL FEATURES
Coin type (GCWF1069QS1/GCWF1069QS3)
Card / OPL Ty pe (GCWF1069CS1/GCWF1069CS3/
GCWF1069CD1/GCWF1069CD3
1 25
43
Coin type (GCWF1069QD1/GCWF1069QD3)
1 25
4 3
1. Display LED
2. Cycle button
3. Optional function button
4. Start/Pause button
5. Status LED

16
Display LED
T
he display shows the vend price and
remaining time and programming options. Error
codes are also displayed here.
Optional function button
Add Super Wash: Wash time or rinse cycle
can beadded when additional coin is inserted
or a valid cash card is entered.
Custom PGM: Customized cycle program
Start/Pause button
The Start/Pause LED ashes when the full vend
price has been satised and the cycle has been
chosen.
Status LED
Cycle button
Press the CYCLE button to select the desired
cycle based on laundry types and conditions.
Hot
Use for hot washing for heavy fabrics, such as
white clothes, table linens, and heavily soiled
clothes.
Warm
Use for warm washing for heavy fabrics, such
as jeans, corduroys, or work clothes.
Cold
Use for cold washing for sturdy fabrics, such
as casual work.
Delicates
Use for cold washing for synthetic fabrics, such
as washable knit fabric and no-iron nishes.
Start/Pause button
Display LEDStatus LEDCycle button
Optional function button
LED Description
LED ashes whenever the
Washing cycle is in operation.
LED ashes whenever the
Rinsing cycle is in operation.
LED ashes whenever the
Spinning cycle is in operation.
LED ashes whenever the
door lock is activated.
can be used. Only available in OPL type.

Select cycles designed for different types of fabric and soil levels
Add super wash
- Adds an additional 3 minutes of washing time and an extra rinse.
Custom PGM
- Customized cycle program can be used. Only available in OPL type.
17
CYCLE Fabric Type Wash / Rinse
Temp.
Hot Cotton, Linon, Towels, Shirts, Sheets Hot/Cold
Warm Mixed Loads, Work Clothes, Jeans, Shirts Warm/Cold
Cold Dress Shirts/Pants, Wrinkle Free Clothing,
Poly/Cotton Blend Clothing, Tablecloths. Cold/Cold
Delicates Dress Shirts/Blouses, Nylons, Sheer or Lacy
Garment Cold/Cold

18
7. WIRING DIAGRAM/PROGRAM CHART/PCB LAYOUT
Program Chart
Course
PREWASH(A+B+C) WASH (D+E)RINSE ((G+H+I+J+K +L)*n) SPIN (M+N +O +P )
De faultW
orking Ti m
e
(A)
Wate r
Supply
(B)
Tumble
(C)
Drain
(D)
Wate r Supply
(E)
Tumble
(CCCC -D+ Super Wash)
(G)
Drain
(H)
Inte rm ien
t Spin
(I)
Spin
(J)
Wave F
orce
(K)
Wate r Supply
(L)
Tumble
(rt-G-H-J)
(M)
Drai
n
(N)
Inte rm ient
Spin
(O)
Spin
(O)Disenta
ngle
CCCCSuper
Wash
Non-stop
Wash Rt tSSd
(High, Middle
/ Low)
5~15
(High, Middle
/ Low)
SPCt:
Uut
/both
XO
(High, Middle
/ Low)
8~16
(High, Middle
/ Low)
0123456
Hot
12~4 1
3 / 2
2~12 / 3~13 +3
13
01
1
3 / 2
1~9 / 2~9
13
6554222
1
Wash (8)
Rinse (17)
Spin (11)
Total (3 6)
Warm
Cold
Delicate
0
3
Wash (8)
Rinse (17)
Spin (11)
Total (3 6)
Tub Cle
an -300
35
60
Wiring Diagram

19
( P/N : EBR81121312)
X131 :
1. AC1
2. Heater Relay
X132:
1. AC2
2. Heater Relay
YL1:
1. DrainValve
2. Bleach Valve
3. Door Lock
4. Hot Valve
NA4:
1.
2. Circulation
3. Atomizing Valve
4. Door Switch 3
5. Door Switch 2
6. Main Valve
PIN3:Card Reader
1. CARD TX +
2. CARD TX -
3. CARD RX +
4. CARD RX -
5. VCC
6. G
BL4: E-suds
1. TX +
2. TX -
3. RX +
4. RX -
NA2:
1.G
2. VCC 5V
3.
4. Thermistor
5. G
6. Pressure Switch
7. Pressure Switch
8. G
PIN2:Coin
1. 5V
2. COIN1
3. G
4. COIN 2
5. G
6. COIN BOX
7. COIN SVC
8. G
9. 16.5V
CON1:
1.RX
2. TX
3. G
4. 12V
5. 5V
6. Boot
7. Reset
GR : Motor Stator Control
1. U
2. V
3. W
PCB Layout (Main)

8. TROUBLESHOOTING
20
8-1. BEFORE PERFORMING SERVICE
8-2. QC TEST MODE.
Be careful of electric shock when disconnecting parts while troubleshooting.
Card Type
The washer must be empty.
1. Insert Service Card
2. Display
3. Press the Start button repeatedly to cycle through the test modes.
8-4. HOW TO CHECK THE RPM
Press the ADD SUPER WASH AND HOT button simultaneously.
Under 200 rpm: The display indicates the rpm. (Under 200 rpm)
Over 200 rpm: The display indicates the rpm. (x 10 rpm)
So, for example a display indicating 050 : rpm of 050 x 10 rpm = 500rpm
Coin Type
1. Turn on/off toggle switch
2. Display
3. Press the Start button repeatedly to cycle through the test modes.
The voltage of each terminal is 120V- when the unit is plugged in.
All Types
1. Push the Hot and Cold button at the same time.
2. Push the Warm button 3 times.
3. Lpc1 Display
4. Press the Start button repeatedly to cycle through the test modes.
8-3. HOW TO CHECK THE WATER LEVEL FREQUENCY
Press and hold the ADD SUPER WASH+Delicate and WARM buttons simultaneously.
When you check the water level, the first digit is a 0 which means 2.
A display indicating 041 is a water level frequency of 241 multiplied by 0.1 KHz , for an
actual frequency of 241 KHz.
Number of times the
START button is pressed
yalpsiDtnioP kcehC
None
1 time
2 times
3 times
4 times
5 times
6 times
7 times
8 times
9 times
10 times
12 times
13 times
14 times
15 times
16 times
Turns on all lamps and locks the door Displays 1U:XX, 1g:XX and 12:XX alternatly
(Version)
rpm (40~50)
rpm (600)
rpm(1150)
Water level frequency (255~)
Water level frequency (255~)
Water level frequency (255~)
Water level frequency (255~)
rpm (40~50)
Water level frequency (255~)
Displays 1U:XX, 1g:XX and 12:X0
alternatly (Version)
rpm (1150)
Tumble Clockwise.
Low Speed Spin
High Speed Spin
Inlet valve for main water turns on.
Inlet valve for hot wash turns on.
Inlet valve for atomizing turns on (single model).
Inlet valve for softener turns on (stack model).
Inlet valve for bleach turns on (single model).
Inlet valve for atomizing/bleach turns on (stack model).
Tumble counter clockwise.
Drain Pump turns on
Turns on all lamps.
Displayed 0XX
Turn on Circulation Pump
Button Checks.
High Speed Spin
PDA Signal Check This function is not applied in this
11 times( )
*
machine