Midea C03 Service Manual

Service Manual

Washing Machine

Model:C03

Note：

Before service the unit, please read this manual first.
Contact with your service center if meet problem

Contents

2

1 PRECAUTION ………………….………………..…………………………………………………. 3

1.1 Safety Precautions

1.2 Servicing Precaution

1.3 Cautions For Safety

2 PRODUCT SPECIFICATIONS ……………………………………………………………….. 7

3 USER MANUAL …………………………………………………………………………………. 17

4 WIRING DIAGRAM /PCB LAYOUT ………………………………………………………… 18

5 FACTORY PATT DETECTION …………….…………………………………………………… 20

6 MALFUNCTIONS CODES AND EXPLANATIONS ……………………………………… 24

7 TROUBLESHOOTING …………………………………………………………………………… 27

7.1 Maintenance non-heating malfunction

7.2 Door non-locked & its maintenance

7.3 Door non-locked & its maintenance

7.4 Heating beyond the setting temperature its maintenance

7.5 Maintenance of non-drain or drain exceed the setting time

7.6 Water inlet overflow malfunction maintenance

7.7 Drum non-rotating malfunction maintenance

7.8 Maintenance water inlet and water outlet at the same time

8 CHECK POINT OF CIRCUIT …………………………………………………………………… 37

9 UNPACKING WAYS OF MAIN PARTS ……………………………………………………… 40

9.1. Undo the back cover

9.2. Undo top cover

9.3. Undo the control panel and PCB

9.4. Undo the door assembly

9.5. Undo the front plate

9.6. Undo the detergent box

9.7. Undo the inlet valve

9.8. Undo the pressure switch

9.9. Undo the drain pump

9.10. Undo the pulley and motor

9.11. Undo the absorber pin from the cabinet

9.12.Undo the drum tub assembly

9.13. Undo the absorber pin from the drum

9.14.Undo the heater and NTC

10 SERVICE TOOLS ……..…………………………………………………………………………. 47

3

When performing troubleshooting and part replacement during servicing, note the
following safety
precautions:

1.1 Safety Precautions

1.1.1 Use Genuine Parts
The components of the washing machine have safety features such as non-combustibility
and voltage with standing. Therefore, always use the same part as suggested by the maker.
In particular be sure
to use only designated parts in case of major safety parts identified by the marker.

1.1.2 Grounding
Connect the grounding wire to the shell plate ,and bury it under at least 25cm of earth:
alternatively, connect the ground wire to the appropriate pin on a properly grounded
power receptacle. Never connect the wire to a telephone line, lightning rod, or gas pipe.

1.2 Servicing Precautions

1.2.1Observe Warnings
Be sure to follow special warning and precautions that are described on part labels and in
the owner'
manual.

1.2.2 Parts Assembly and Wiring
Be sure to use insulation material(such as tube and tape).And be sure to restore all parts
and wires to their original position. Take special care to avoid contact with sharp edges.

1.2.3 Perform Safety Checks after Servicing
After servicing, check to see that the screws, parts, and wiring are restored to their
original positions, and check the insulation between the external metals and the socket
plug. In addition, place the washing machine in a level position (less than1 degree)to
prevent vibration and noise during operations.

1.2.4 Insulation Checks
Pull out the plug from the power receptacle, pour water into the spin tub, and then set
the timer.
Check to see that the resistance insulation between the terminals of the plug and the
externally
exposed metal is greater than 1M .

Note :When it is impossible to insulation check with a 500V insulation resistance
tester, use other testers for inspection.

1 PRECAUTION

1.3 CAUTIONS FOR SAFETY

• Please observe the following notes for safety.

• The symbols indicate as follows.

4

Symbol Meaning

WARNING

Indicates possibility of death or serious injury of a repair
technician and a person nearby through the misconducted
work , or of a user by a defect of the product after the work
performed by the technician.

CAUTION

Indicates possibility of injury or physical damages* of a
repair technician and a person nearby through the
misconducted work , or of a user by a defect of the product
after the work performed by the technician.

Symbol Meaning

ELECTRIC SHOCK

Indicates a caution (including a warning).
Specific instruction is followed by a graphic or characters in
or near.
Symbol left warns an electric shock.

DO NOT DISASSEMBLE

Indicates prohibition (act must not be conducted).
Specific instruction is followed by a graphic or characters in
or near.
DO NOT Symbol left warns not to disassemble.

UNPLUG

Indicates forcing (act must be conducted).
Specific instruction is followed by a graphic or characters in
or near .
Symbol left warns to unplug the power cord.

* Means secondary damages of property, furniture , domestic animal and pet.

Symbol Meaning

OUT OF CHILD

Advise the customer to keep children out of the work place.
Children may be injured with a tool or a disassembled part.

UNPLUG POWER

Unplug power cord for the work such as disassembling
which is not

unnecessary to power on . Do not hold the plug by a wet hand.

Failing to unplug may cause an electric shock.

USE REPAIR PARTS

Use the specified repair parts when repairing the product.
Otherwise , amalfunction or a defect may occur.
Also , a short circuit , ignition or other danger to the
customer may occur.

1 PRECAUTION

5

WARNING

CHECK INSULATION

RESISTANCE

After repair, measure insulation resistance between the
charging part(power cord plug) and the non-charging
metallic part (ground) with an insulation resistance meter
(500V).The resistance shall be 10M or more.
Failing to check the insulation resistance may cause a short
circuit, electric shock or other diseases to the customer.

DO NOT MODIF

Do not modify the product.
An electric shock or ignition may occur.

DO NOT MODIFY

Only a repair technician can disassemble and repair.
An electric shock, ignition or malfunction may cause injury.

USE EXCLUSIVE

SOCKET

Use an exclusive 110 VAC/15 A socket for the washing
machine.
Use an exclusive 220VAC/17A socket for the washing
machine.
Otherwise , an electric shock or ignition may cause. Sharing
the same socket with other instrument causes heating of a
branch socket and result in a fire.

CONNECT

GROUNDING WIRE

Connect the grounding wire.
Failing to do so may cause an electric shock when a short
circuit occurs.
Consult an electric work shop or a sales shop.

DO NOT USE WET

PLACE

Do not install in a bath room or a place exposed to wind or
rain.
An electric shock or a short circuit may cause a fire.

DO NOT SPLASH

WATER

Do not pour or immerse electrical parts into water or liquid
solution.
An electric shock or ignition may occur.

REMOVE DUST

Wipe off dust adhered to the plug of power cord.
Dust may cause a fire.

AVOID

INFLAMMABLE

Do not put inflammable into the washing tub.
Do not put cloths stained with kerosene, gasoline, benzene,
thinner, alcohol, etc. lt may cause a fire or explosion.

1 PRECAUTION

6

WARNING

DO NOT TOUCH

Do not touch the laundry before the spin basket stops
completely.
The laundry entangles your hand causing an injury even if
the basket rotates slowly. Pay special attention to children.

INSTALL

CAREFULLY

Ask an electric work shop to install the product.
Install the product securely and safely according to the
electrical equipment technical standard and the wiring
standard.
Incorrect work causes an electric shock and a fire.

DO NOT PULL

Do not pull the power cord when unplugging.
Hold the power plug to unplug.
An electric shock or short circuit may cause a fire.

DANGER HAND

Do not insert your hand under the washing machine during
operation.
There is a rotary part under the machine which may cause
an injury.

WATER LEAKAGE

Before starting washing, open the faucet and check water
supply hose joint which shall not be loosened for no water
leaks.
The loose screw or hose joint may cause water leakage
resulting in an unexpected damage.

1 PRECAUTION

7

Product Specifications

Model Series

C03

Model Name

EU(A3)-FC80-S12/C1903E
EU(A3)-FC80-S14/C1903E
IR(A3)-FC80-S14S/C1903E

Color

White

Features

Washing Capacity

8kg

Rated Spinning Capacity

8kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

2000W

Rated Current

10A

Max. Spin Speed

1200RPM/1400RPM/1400RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

A+++

Washing Performance Class

A

Spin-drying Efficiency Class

B

Annual energy consumption
(AEC)

196Kwh/annum

Weighted annual water
consumption (AWC)

11000L/annum

Specifications

Net Dimensions (W×D×H)

595 × 565 × 850mm

Net Weight

70Kg

Gross Weight

75Kg

2 PRODUCT SPECIFICATIONS

8

Product Specifications

Model Series

C03

Model Name

MFC80-S1403/C14E-AE(5)

Color

White

Features

Washing Capacity

8kg

Rated Spinning Capacity

8kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

2000W

Rated Current

10A

Max. Spin Speed

1400RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

UAE ★★★★★

Washing Performance Class

-

Spin-drying Efficiency Class

-

Annual energy consumption
(UAE)

187Kwh/year

Weighted annual water
consumption (UAE)

14300L/year

Specifications

Net Dimensions (W×D×H)

595 × 565 × 850mm

Net Weight

70Kg

Gross Weight

75Kg

2 PRODUCT SPECIFICATIONS

9

Product Specifications

Model Series

C03

Model Name

SA(4)-FC75-S12/C1903E
MFC75-S1403/C14E-SA(4)

Color

White

Features

Washing Capacity

7.5kg

Rated Spinning Capacity

7.5kg

Power Supply

220-230 V

Rated Frequency

60Hz

Rated Power

2000W

Rated Current

10A

Max. Spin Speed

1200RPM/1400RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

SA ★★★★

Washing Performance Class

-

Spin-drying Efficiency Class

-

Annual energy consumption
(SA)

665Kwh/year

Weighted annual water
consumption (SA)

55L/cycle 54L/cycle

Specifications

Net Dimensions (W×D×H)

595 × 565 × 850mm

Net Weight

70Kg

Gross Weight

75Kg

2 PRODUCT SPECIFICATIONS

10

Product Specifications

Model Series

C03

Model Name

EU(A3)-FC70-S12/C1903E
EU(A3)-FC70-S14/C1903E
IR(A3)-FC70-S14S/C1903E

Color

White

Features

Washing Capacity

7kg

Rated Spinning Capacity

7kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

2050W

Rated Current

10A

Max. Spin Speed

1200RPM/1400RPM/1400RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

A+++

Washing Performance Class

A

Spin-drying Efficiency Class

B

Annual energy consumption
(AEC)

175Kwh/annum

Weighted annual water
consumption (AWC)

10000L/annum

Specifications

Net Dimensions (W×D×H)

595 × 495 × 850mm

Net Weight

61Kg

Gross Weight

65Kg

2 PRODUCT SPECIFICATIONS

11

Product Specifications

Model Series

C03

Model Name

MFC70-S1203/C14E-AE(5)
AE(5)-FC70-S12/C1903E

Color

White

Features

Washing Capacity

7kg

Rated Spinning Capacity

7kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

2050W

Rated Current

10A

Max. Spin Speed

1200RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

UAE ★★★★★

Washing Performance Class

-

Spin-drying Efficiency Class

-

Annual energy consumption
(UAE)

163Kwh/year

Weighted annual water
consumption (UAE)

13650L/year

Specifications

Net Dimensions (W×D×H)

595 × 495 × 850mm

Net Weight

61Kg

Gross Weight

65Kg

2 PRODUCT SPECIFICATIONS

12

Product Specifications

Model Series

C03

Model Name

MFC60-S1203/C14E-SA(4)

Color

White

Features

Washing Capacity

6kg

Rated Spinning Capacity

6kg

Power Supply

220-230 V

Rated Frequency

60Hz

Rated Power

2000W

Rated Current

10A

Max. Spin Speed

1200RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

SA ★★★★

Washing Performance Class

-

Spin-drying Efficiency Class

-

Annual energy consumption
(SA)

535Kwh/year

Weighted annual water
consumption (SA)

42L/cycle

Specifications

Net Dimensions (W×D×H)

595 × 495 × 850mm

Net Weight

61Kg

Gross Weight

65Kg

2 PRODUCT SPECIFICATIONS

13

Product Specifications

Model Series

C03

Model Name

MFC60-ES1001/C1457E
MFC60-ES1201/C1457E
MFC60-ES1401/C1457E

Color

White

Features

Washing Capacity

6kg

Rated Spinning Capacity

6kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

2000W

Rated Current

10A

Max. Spin Speed

1000RPM/1200RPM/1400RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

A+++

Washing Performance Class

A

Spin-drying Efficiency Class

C/B/B

Annual energy consumption
(AEC)

153Kwh/annum

Weighted annual water
consumption (AWC)

9240/annum

Specifications

Net Dimensions (W×D×H)

595 × 470 × 850mm

Net Weight

54Kg

Gross Weight

58Kg

2 PRODUCT SPECIFICATIONS

14

Product Specifications

Model Series

C03

Model Name

MFC60-S1203/C14E-AE(5)

Color

White

Features

Washing Capacity

6kg

Rated Spinning Capacity

6kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

2000W

Rated Current

10A

Max. Spin Speed

1200RPM

Display Type

LED

Motor

Universal Motor

Energy Rating

Energy Efficiency Class

UAE ★★★★★

Washing Performance Class

-

Spin-drying Efficiency Class

-

Annual energy consumption
(UAE)

140Kwh/year

Weighted annual water
consumption (UAE)

13000L/year

Specifications

Net Dimensions (W×D×H)

595 × 470 × 850mm

Net Weight

54Kg

Gross Weight

58Kg

2 PRODUCT SPECIFICATIONS

15

Product Specifications

Model Series

C03

Model Name

EU(A31)-FC90-S14D/C1903E

Color

White

Features

Washing Capacity

9kg

Rated Spinning Capacity

9kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

2000W

Rated Current

10A

Max. Spin Speed

1400RPM

Display Type

LED

Motor

Inverter Motor

Energy Rating

Energy Efficiency Class

A+++

Washing Performance Class

A

Spin-drying Efficiency Class

B

Annual energy consumption
(AEC)

196Kwh/annum

Weighted annual water
consumption (AWC)

11800L/annum

Specifications

Net Dimensions (W×D×H)

595 × 565 × 850mm

Net Weight

71Kg

Gross Weight

76Kg

2 PRODUCT SPECIFICATIONS

16

Product Specifications

Model Series

C03

Model Name

EU(A33)-FC100-U16B/C1903E
EU(A33)-FC120-U14B/C1903E

Color

White

Features

Washing Capacity

10kg/12kg

Rated Spinning Capacity

10kg/12kg

Power Supply

220-240 V

Rated Frequency

50Hz

Rated Power

1950W/2000W

Rated Current

10A

Max. Spin Speed

1600RPM/1400RPM

Display Type

LED

Motor

Inverter Motor

Energy Rating

Energy Efficiency Class

A+++

Washing Performance Class

A

Spin-drying Efficiency Class

A/B

Annual energy consumption
(AEC)

167Kwh/annum 197Kwh/annum

Weighted annual water
consumption (AWC)

13000L/annum 14000L/annum

Specifications

Net Dimensions (W×D×H)

595 × 565 × 850mm(10KG)
595 × 585 × 850mm(12KG)

Net Weight

72Kg/73kg

Gross Weight

76Kg/78kg

2 PRODUCT SPECIFICATIONS

17

3 USER MANUAL

NOTE：
Please check the user manual about the installation，operation，and spec etc.

18

4 WIRING DIAGRAM/PCB LAYOUT

4.1 During the failure diagnosing and changing components, please do it as

following:

1)There is some static harm to the electrical parts from colophony in the

washing machine or humans. So it is better to eliminate the potential static by

grounding the humans or touching the plugs.

2)The rated voltage of the SCR in PCB is 220-240V, so it's possible to be electrical

shock. Please take care while strong and weak electricity is alternative. 3)The

design of PCB is out of failure, so prohibit to change the PCB panel according to

its alarm. Please do it according to the failure diagnose program.

4.2 The circuit program(Universal Motor)

4.3 The circuit program(Inverter Motor)

19

4.3 PCB Layout(Universal Motor )

1 Moto
2 Inlet Valve & Drain Pump & Door Lock
3 Moto Tacho
4 Temp Sensor & Water Sensor
5 Noise Filter & Heater
6 Noise Filter & Drain Pump & Door Lock

1

2

3

4

5

6

4.4 PCB Layout(Inverter Motor)

1 Inverter Motor communications
2 Inverter Motor
3 Inlet Valve & Drain Pump & Door Lock
4 Temp Sensor & Water Sensor
5 Noise Filter & Heater
6 Noise Filter & Drain Pump & Door Lock

1

2

3

4

5

6

4 WIRING DIAGRAM/PCB LAYOUT

5 FACTORY PATTEN DETECTION

20

5.1 Service mode

Before entering into service mode, make sure no water remains in the inner
drum, if not, select drain only program to drain them out.
Turn on the machine and take turns [K3] [K5] [K3] [K5] buttons in 10s.
Press [K1] or [K2] to select test program. Press [K8] to confirm your selection and
start the selected test. If you want to go back to test selection interface, press
the [K8] to cancel previous selection.

LED

Display

Check
Target

Check Method Check Item

t01

Version
switchover

1. Press [K8] button

2. Press [K2] to confirm switchover

3. Press [K3] to change version

4. Press [K2] button continuously for
3s to confirm your change

LED displays“0xx”

x means current
version

t02

Error code
checking

1. Press [K8] button

2. Press [K1] to show the last code and press

[K2] to show the next code

3. Press [K2] and [K3] button at the same

time continuously for 3s, after hearing the
beep, all the error codes records deleted,
LED displays E00.

LED displays
“Err”

t03

Version
information
checking

1. Press [K8] button Enter into service mode,

LED displays “cod”.

2. Press [K8], LED displays project number.

3. Press [K1] button, LED displays version

number

LED displays version

number

21

5.1 Service mode

LED

Display

Check
Target

Check Method Check Item

t04

UI Checking Press [K8] button

The whole LED
display flashes

t05

Drain-pump
checking

Press [K8] button to drain out all the
remaining water. If all water drained out, LED
displays “EP”，and 6 minutes later ,if there is
still water remains in it, LED displays “FP”

LED displays “PPt

”

t06

Pressure
switch
checking

1. Press [K8] button to activate inlet valve.

LED displays level frequency once water
lever get the main wash level.

LED displays LL

t07

Water
temperature
sensor and
heater
checking

Press [K8] button to activate the main inlet
valve and get the water lever to heating level
then turn on the heater and 5 mins

later turned

off automatically

LED displays the
current
temperature

t08

Inlet valve
checking

1. Press [K8] button, LED displays “uu”and

switch on the main wash inlet valve for 10
min.

2. Press [K1] button, LED displays “u1” and

switch on prewash valve for 5s.

3. Press [K1] button, LED displays “u2” and

switch on the main wash inlet valve for 5s.

4. Press [K1] button to switch on main wash

and prewash valve and get the water lever
to setting level, then drain out the water.

LED displays “UU”

5 FACTORY PATTEN DETECTION

22

5.1 Service mode

LED

Display

Check
Target

Check Method Check Item

t09

Rotating
checking

Press [K8] button, inner drum rotates in

45r/m clockwise for 15s and stop for 10s then

rotates counterclockwise for 15s, over and over

again.

LED displays
“tUB”

t10

Spin speed
checking

Press [K8] button , the number on the
display goes up in the same pace with the real
speed and when it reach 400rpm, you need to
press [K1] button to get the machine to reach
its target speed

LED displays “spn

”

5 FACTORY PATTEN DETECTION

23

- Turn on the machine , to take turns 【K3】【K5】【K3】【K5】,the door locked,
enter the test mode, display the T01, press the 【K1】or 【K2】 to show “T15”.

- Press [K8] button, put into the function test mode, display TST, then press again,
display version number and project number;

- Press 【K1】or 3 seconds later again, display the temperature of NTC;

- Press 【K1】or 3 seconds later again, display water level frequency;

- Press 【K1】or 3 seconds later again, display “U2”,main wash valve is open;

- Press 【K1】or 3 seconds later again, display “U1”,main wash valve is close ,pre­wash valve is open;

- Press 【K1】or 3 seconds later again, display “PuP”, pre-wash valve is close, drain
pump is open;

- Press 【K1】or 3 seconds later again, display “HEA”, drain pump is close , HTC is
open;

- Press 【K1】or 3 seconds later again, the heater is close ,the motor rotates forward 3
seconds, stop 2 seconds, display the motor speed, accelerate to 1000 rpm;

- Press [K8], display the “T15”, back to the function test mode. Exit need to close
the power.

5.3 Marketing-show (no-water testing)

The sales display mode can not be used in this PCB.

5.2 Self-check

5 FACTORY PATTEN DETECTION

6. MALFUNCTION CODES AND EXPLANATIONS

24

Malfunction

code

Reason Possible cause Solution

E10

In 3 minutes,
the water level
doesn’t
change with
valves open

The water level
doesn’t changed in 3
minutes during filling
the water.

If the washer fills very slowly, the
water pressure from the house
might be too low. If the water inlet
valve isn't leaking and there are
no other symptoms this problem
does not need to be corrected.

Water inlet hose

Make sure that water faucet is
turned on and that the screens on
the hoses are not restricted.

Water inlet
valve
(The voltage on
the water inlet
valve is normal)

If the water pressure is good, try
cleaning the screens inside the
water inlet valve hose connection
ports. If those are clean replace
the water inlet valve.

Water level
sensor or
control switch
(No voltage on
the water inlet
valve)

A water lever control switch
controls how much water enters
the washing machine by PCB. If
the water level control switch is
defective, or more commonly, if
the small air pipe attached to the
air bell restricted, The switch will
not be able to close the electrical
contacts to the washer fill valve.
CHECK THE AIR PIPE
CHECK THE WATER LEVERL
SENSOR
CHECK THE PCB and the inner
wire between PCB and the sensor

E12

The water
level in drum
exceed a
certain level
for alarm

Restart

Sometimes just restart the unit
can solve the problem.

Water inlet valve
(The voltage on the
water inlet valve is
normal)

If the washer is overflowing, the
water inlet valve has failed.
Replace it.

Water level
sensor or
control switch
(No voltage on
the water inlet
valve)

A water lever control switch
controls how much water enters
the washing machine by PCB. If
the water level control switch is
defective, or more commonly, if
the small air pipe attached to the
air bell restricted, The switch will
not be able to close the electrical
contacts to the washer fill valve.
CHECK THE AIR PIPE
CHECK THE WATER LEVERL
SENSOR
CHECK THE PCB and the inner
wire between PCB and the sensor

25

E21

In 3 minutes,
the water level
doesn’t
change with
pump started

Drain hose

If the washer won't drain water
check the drain hose. Be sure the
hose did not get kinked behind
the washer. Also, remove the
hose from the pump and check it
for obstructions.

pump

If the washer won't drain water
the drain pump might be
defective. It's also common for a
small sock or other article of
clothing to get caught in the drain
pump or in the drain hose. Check
both for an obstruction before
replacing the pump.

PCB Check the PCB

E30

Door can’t be
unlocked with
over 3 time’s
fail.

Door lock

Check the door hook and the door
lock to get correct location.

PCB

If the washer door won't unlock
the problem might be the main
The PCB. This is not common.
Check the inner wire between the
PCB and the door lock.

E33

The PCB can not
detect the signal
of the water level
sensor.

Water level sensor

Check the water level sensor
Check the PCB the inner
wire between PCB and the sensor

E34

Temperature
sensor fail

The temperature
sensor(NTC) get
broken

Check the NTC

E60

The motor don’t
drive

The motor don’t drive
for 5 times

1.Check the PCB and the motor

2.Check the motor communicate
wire

6. MALFUNCTION CODES AND EXPLANATIONS

26

E61

The speed don’t
transmit signal

The PCB can’t get
speed transmit signal
when the motor drive

1.Check the speed transmit line of
the motor to prevent fall of

2.Check the PCB and the motor

3.Check the motor communicate
wire

E62

The speed
don’t transmit
signal
abnormality

Triac get broken

1.Check the speed transmit line
of the motor to prevent fall of

2.Check the PCB and the motor

3.Check the motor
communicate wire

6. MALFUNCTION CODES AND EXPLANATIONS

7 TROUBLE SHOOTING

27

Fault tree

1. Maintenance non-heating malfunction

Change the PCB

Whether the

connection is

correct

Reliable connection

Whether NTC is

short or open

circuit

Change NTC

Non-heating

Change the heater

Whether the

heater is well

Y

Y

N

Y

N

N

Y

28

2. Door non-locked & its maintenance

Whether the inner

wire between the

PCB and the door

lock is correct

Connect the PCB and

door lock correctly

Whether the door

is closed correctly

Close the door

correctly

Door non-locked

Check the door

lock is well，or

not

N

Y

Y

N

Change the door lock

N

Y

Change the PCB

Y

7 TROUBLE SHOOTING

3. No water inlet or water inlet overtime
No water inlet or

water inlet

overtime

Y

Whether the water

pressure is between

0.05MPa~1MPa

Wait the water

pressure meet the

standard

Whether the tap is
open

Open the tap

Whether the Drain

Hose is hung up

beyond the height

of 100cm

N

N

Hang up the drain

hose

N

Y

Whether the inlet

filter net is blocked

Clean it with brush

Whether the inner

wire connection is

correct

Y

Y

Reliable the

connection

N

whether the inlet

valve is well

N

Change the inlet valve

N

Y

29

Change the PCB

Y

Y

7 TROUBLE SHOOTING

30

4. Over heating

circuit open

circuit

Change the NTC

Over heating

N

Y

Y

Whether NTC is well

Change the PCB

7 TROUBLE SHOOTING

31

5. Maintenance of non-drain or drain exceed the setting time

Whether the

pump is blocked

Non-drain or

overtime drain

Change the PCB

Clean the filter

N

Y

Y

Change the

drain pump

N

Whether the
pump is well

N

Whether the Drain

Hose is hung up

beyond the height

of 100cm

Hang up the drain

hose

N

Y

7 TROUBLE SHOOTING

32

6. Water inlet overflow malfunction maintenance

whether the inlet

valve is well

Change the PCB

Whether the

pressure switch is

well

Change pressure

switch

Water inlet overflow

Change the inlet valve

Y

Y

Y

N

N

7 TROUBLE SHOOTING

33

Whether the inner

wire connection is

correct

Change the PCB

Whether the belt is

installed correctly

Drum non-rotating

Installed the belt

correctly

The drum is blocked

Reliable the connection

N

Shut down the power,

open the door and

Rotate the drum .

check the drum rotate

flexibly or not.

N

N

Y

Y

Y

Y

7. Drum non-rotating malfunction maintenance

7 TROUBLE SHOOTING

34

8. Maintenance water inflow and drain off water at the same time

Whether the

washer is

disposing the

foam in the drum

Change the PCB

Normal phenomenon

Hang the hose well

Water inflow and drain

off water at the same

time

Whether the drain

hose is hung up

too low

N

N

Y

Y

Y

7 TROUBLE SHOOTING

35

Description Solution

The washing machine
does not work

Close the washing machine's door.

Water leakage Correctly connect the inlet water pipe.

The speed of the clothes is
abnormal

Reload and distribute the laundry evenly in the drum.

There is the peculiar smell
in the washing machine

Run a Self clean(Drum clean) cycle without any clothes.

No water is visible in the
drum

No fault-water is under the visible area.

There is the remaining
water in the softener's box

No fault- the effect of the softener will not be affected.

The remaining detergent
is left on the clothes

The water-fast component of the non-phosphorus.

detergent will be left on the clothes to form the line scale.

Please select 【rinse】 or【 spin 】programme or brush
away the fleck with the brush when the clothes is dried.

The washing machine
does not fill

Open the water tap.
Check the selection of the procedure.
Check the water.
Pressure to see if the water pressure is insufficient.
Put through the feed-water.
Close the washing machine's door.
To check it the inlet water pipe is bent or blocked.

The washing machine fills
and empties at the same
time.

Make sure the end of the drainage pipe to be higher.
Check if the drainage pipe and sewage have been sealed,
if they have been, there will be the poor ventilation to
cause the sip hon age effect.

No drainage of the
washing machine

Check if the drainage pump is blocked.
Check if the drainage pipe is bent or blocked.
Check the height of the drainage nozzle, make sure it
is0.6-1 meter from the bottom of the washing machine.

Malfunction and solution

7 TROUBLE SHOOTING

36

Vibration of the washing
machine

Level the washing machine.
Level the washing machine.
Fasten the footing.
To check if the internal packing for the transportation
have all been removed.

The bubble spills from
the detergent

Check if the detergent is excessive, if it is the specialized
detergent for the cylinder washing machine.
Dip one scoop of the softener mixed with 1/2 liter of
water to the detergent box II.
Reduce the usage amount of the detergent in the next
time's wash.

The machine stops when
the procedure has not
been finished

Power failure or water cut.

The drainage pump has
noise during the
operation when the water
has just been drained

The inner barrel water of the washing machine has been
drained but there is still a small amount of water in the
drainage pump and pipe. The drainage pump
continuously operates and takes in the air, and at this time
there is the noise, which is normal situation.

To stop for some time
during the wash
procedure

The washing machine adds water automatically.
Because there is too much bubble in the tube, the
washing machine is cleaning the bubble.

If you cannot solve the above abnormal situations, would you please:

1. To turn the procedure knob to 【OFF】, pull out the attachment plug;

2. To close the water tap, and contact the nearest service center.

7 TROUBLE SHOOTING

Before repairing, use multimeter to judge circuit stand of fail (Universal Motor)

8 CHECK POINT OF CIRCUIT

37

No Parts Picture Test Description

Parameter Remarks

1

Water
Level
Switch

1.Measuring two
straight line
terminals

2.Measuring two
vertical terminals

Break over after blow­PASS

2

Door
lock

Electrify the
resistance

2 seconds after the
power supply can
automatically locked
1-2 mins after the
power off can
automatically locked­PASS

3

Water
valve

measuring
resistance

Resistance value range
3-6KΩ-PASS

4 Pump

Measure the
resistance of the
toroids

Resistance value range
150-250Ω-PASS

5 Heater

measuring
resistance

Resistance value range
20-35Ω-PASS

6 NTC

measuring
resistance

Resistance value range

4.8kΩ±8%@25℃0­PASS

6 Motor

Measure the
resistance of the
toroids

Resistance value range
PIN5~PIN10

1.3±10%Ω-PASS

Before repairing, use multimeter to judge circuit stand of fail (Inverter Motor-9KG)

38

No Parts Picture Test Description

Parameter Remarks

1

Water
Level
Switch

1.Measuring two
straight line
terminals

2.Measuring two
vertical terminals

Break over after blow­PASS

2

Door
lock

Electrify the
resistance

2 seconds after the
power supply can
automatically locked
1-2 mins after the
power off can
automatically locked­PASS

3

Water
valve

measuring
resistance

Resistance value range
3-6KΩ-PASS

4 Pump

Measure the
resistance of the
toroids

Resistance value range
150-250Ω-PASS

5 Heater

measuring
resistance

Resistance value range
20-35Ω-PASS

6 NTC

measuring
resistance

Resistance value range

4.8kΩ±8%@25℃0­PASS

6 Motor

Measure the
resistance of the
toroids

Resistance value range
PIN5~PIN10

1.3±10%Ω-PASS

8 CHECK POINT OF CIRCUIT

Before repairing, use multimeter to judge circuit stand of fail (Inverter Motor-10/12KG)

39

No Parts Picture Test Description

Parameter Remarks

1

Water
Level
Switch

1.Measuring two
straight line
terminals

2.Measuring two
vertical terminals

Break over after blow-

PASS

2

Door
lock

Electrify the
resistance

2 seconds after the
power supply can
automatically locked
1-2 mins after the
power off can
automatically locked-

PASS

3

Water
valve

measuring
resistance

Resistance value range
3-6KΩ-PASS

4 Pump

Measure the
resistance of the
toroids

Resistance value range
150-250Ω-PASS

5 Heater

measuring
resistance

Resistance value range
20-35Ω-PASS

6 NTC

measuring
resistance

Resistance value range

4.8kΩ±8%@25℃0-

PASS

6 Motor

Measure the
resistance of the
toroids

Resistance value range
PIN5~PIN10

1.3±10%Ω-PASS

8 CHECK POINT OF CIRCUIT

UNPACKING WAYS OF MAIN PARTS

1. Undo the back cover

2. Undo top cover

3. Undo the control panel and PCB

4. Undo the door assembly

5. Undo the front plate

6. Undo the detergent box

7. Undo the inlet valve

8. Undo the pressure switch

9. Undo the drain pump

10. Undo the pulley and motor

11. Undo the absorber pin from the cabinet

12.Undo the drum tub assembly

13. Undo the absorber pin from the drum

14.Undo the heater and NTC

9 UNPACKING WAYS OF MAIN PARTS

40

414141

Operation Picture

1. Undo the back cover

Undo four screws fit
between back plate and
cabinet, and then pull out.

2. Undo the top cover

I.Undo 2 screws fit back
Cabinet.
II.Push back the top cover
15mm until it leaves away
from the control panel,
and then take it down.

3. Undo the control panel
and PCB

I.Departing the top cover
II.Draw out the detergent
drawer.
III.Loosen two screws fit
on the control panel .
IV.Loosen two screws fit
on the control panel.
V.Take out the control
Panel inclined from the
panel .
VI. Extract the cycle select
knob
VII.Pull out the wire and
press the buckle to take
out the PCB.

9 UNPACKING WAYS OF MAIN PARTS

424242

4.Undo the door assembly

Undo the door

I.Open the door of

washing machine.
II.Take the outer gasket
III.Remove two screws on

the door and take down

the door .

Undo the door gasket

I.Remove the outer
gasket clamp between the
door seal and the front
plate. Loosen the inner
gasket clamp between
the door seal and the
front of the outer tub.

Undo the door lock

I.Remove two screws on
the door lock, and take
down the door lock.
II.Take out the door lock
and draw out the plug.

5. Undo the front plate

I.Remove the lower cover.
II.Undo five screws in
front plate
III.Put the front plate up to
the clasp of the front plate
away from the loading
holder, and then take off
the front plate.

9 UNPACKING WAYS OF MAIN PARTS

4343

6. Undo the detergent box

I.Release the hose clamp

and pull out the inlet hose.
II.Release the hose clamp
and pull out the detergent
box hose, and then take
out the detergent box. 1.

7. Undo the inlet valve

I.Remove the top cover
II.Undo 2 screws between
cabinet and inlet valve.
III.Release the clamp fixing
the inlet valve and the
inlet hose, and then pull
out the inlet hose.

8. Undo the pressure switch

I. Pull out the plugs on the
pressure switch.
II.Undo a screws
between cabinet and
pressure switch
III.Take out the pressure
switch.

9 UNPACKING WAYS OF MAIN PARTS

444444

9. Undo the drain pump

I.Pull out the terminal
behind the drain pump.
II.Nip out clamp between
drain hose and the drain
pump, and then pull out
the drain hose.
III.Loosen the screws fitted
on the drain pump, and
then pull out the drain
pump.

10.Undo the pulley and
motor

Undo the pulley

Rotate the pulley and at

the same time pull out the
belt.

Undo the motor

I.Let the machine lie
down on the back and
then pull out the motor
wire and grounding wire.
II.Use spanner to remove
the motor screw, and lift
up the motor with the
other hand in case of
falling to the drain pump

9 UNPACKING WAYS OF MAIN PARTS

454545

11. Undo the absorber pin

from the cabinet

Use pliers to pinch the
absorber pin’s
protuberance, and knock
the absorber pin out from
back lightly; in the same
way, remove the other one

12.Undo the drum tub
assembly

Undo the upper and façade

counterweight
I.Remove 3 screws fit
on the upper
counterweight and then
pull out it.
II.Remove 6 screws pull

out the facade
counterweight.

Undo the panel support

Remove two screws
fixing the panel support,
and then remove it.

9 UNPACKING WAYS OF MAIN PARTS

464646

Undo the drum tub

Remove the screws
fixing the pulley, and th
V.Remove the screws fixing
the front and rear tub, and
then remove the tub.
VI.Remove the inner drum
kit.

13. Undo the absorber from
the drum

I.Lift out the outer tub kit.

II.Undo the absorber pin

between absorber and
rear tub, remove the
absorber.

14.Undo the heater and NTC

I.Pull out the heater plug.
II.Pull out the NTC .

9 UNPACKING WAYS OF MAIN PARTS

47

10 SERVICE TOOLS

The end!