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SERVICE MANUAL

Automatic Washer WWA-780

(Philippines)

SPECIFICATION

Power source

Overall dimension(Net dimension)

Net weight

Power consumption

Motor output

Marked capacity of washing/spinning

Washing method

Water capacity

Water consumption

Pulsator speed

Spinner tub speed

AC 220V, 60Hz

540mmX562mmX940mm

33kg

380W

180W

7.8kg

Automatic reverse turn

52Liters

127 Liters (Regular wash cycle

Water level: High)

170 rpm(DELICATE 60 rpm)

850 rpm

Specification: Subject to change without notice.

WWA-780

ABNORMAL CONDITION

When the washer is abnormal, the washer stops as the every actions turns off, beep tone

sounds ON-0.1 second and OFF-0.1 second for 6 seconds and number window LED display

abnormal code and blink on and off. The washer judges the following six conditions as abnormal

condition.

1) Abnormal condition of water supply

In supplying with water, the water level does not reach 1 level within 10 minutes or does not

reach your chosen water level within 20 minutes.

The number window LED display abnormal code: and begin blinking on and off at the

same time and the electric buzzer sounds to indicate a problem.

2) Abnormal condition of drain

In draining, the water level does not go down below the reset level of the water level sensor

within 8 minutes.

The number window LED display abnormal code: and the electric buzzer sounds to

indicate a problem at the same time.

3) Abnormal condition of spin-dry

• The safety switch works 3 times continuously during the program of rinse-spin or works 1

time in the single program of spin-dry.

The number window LED display abnormal code: and the electric buzzer sounds to

indicate a problem at the same time.

• The washer lid is opened.

The number window LED display abnormal code: and the electric buzzer sounds to

indicate a problem at the same time.

4) Abnormal condition of wash（child lock）.

Running in setting child lock, the washer lid is opened beyond 4 seconds.

The number window LED display abnormal code: and the electric buzzer sounds to

indicate a problem at the same time.

5) Abnormal condition of water level sensor.

The water level sensor malfunctions or the water level is overrunning the alert level when the

water does not stop.

The number window LED display abnormal code: and the electric buzzer sounds to

indicate a problem at the same time.

6) Abnormal condition of load sensor.

The number window LED display abnormal code: and the electric buzzer sounds to

indicate a problem at the same time.

WWA-780

CIRCUIT DIAGRAM

Br Y RLB V Bl W Gr

B

P. S

FUSE

5 A

LB

Br

MOTOR

LB

SWI TCH

PRESSURE

TUB

SWI TCH

PRI NTED CI RCUIT BOARD

CAPACI TOR

P

YR

2P W2P Bl2P O 1P P

2P Br 2P R

SWI TCH

LI D

2P B

B B

B

W. V

LB

WATER

VALVE

T. M

MOTOR

TORQUE

LB

TROUBLE SHOOTING

a. Power Source

Yes

No

COLOR SYMBOL

Gr

Bl

G

B

LB

Br

O

P

R

W

Y

V

GRAY

BLUE

GREEN

BLACK

LIGHT BLUE

BROWN

ORANGE

PINK

RED

WHITE

YELLOW

VIOLET

TROUBLE INSPECTION CAUSES REMEDY

Any indications

and beep do not

work when

power switch is

on and the start

button is pressed

INSPECTION

Is fuse blown? Deterioration of fuse. Replace.

Poor connect of

connectors

Control circuit board is

defective

Motor is defective.

Capacitor is defective.

Repair or replace.

Replace.

Replace.

Replace.

Feed hose assembly

Cushion

Does water stop

when the plug

is removed or

power switch is

OFF

Filter

WWA-780

b. Water Supply

Yes

No

Low

High

Note: When removing the flow sheet, reinstate the filter in place correctly.

Yes

No

TROUBLE INSPECTION CAUSES REMEDY

Water does not

flow when the

power switch is

on and start

button is pressed.

INSPECTION

Does humming

noise come on

from water

Valve

Something on the filter of

the water valve or

feed hose assembly.

Clean the filter.

Water valve is defective.

Water level sensor is

defective.

Control circuit board is

defective.

Poor connect of

connectors

Replace.

Replace.

Replace.

Repair or replace.

Water is not

supplied normally. Check water

pressure.

Remove the flow

sheet of the water

valve.

Replace the water

valve.

Clean the filter on

the water valve or

feed hose assembly.

Replace the water

valve.

Water

does not stop

Something in the air trap

hose or air leaks from a

part related water level

sensor system.

Water level sensor is

defective.

Control circuit board is

defective

.

Something on the

diaphragm on the water

valve.

Diaphragm is deformed

Clean or replace.

Replace .

Replace.

Replace or

disassemble the

valve and clean

the diaphragm

Replace

Bearing ass

'

y is defective. Replace.

Motor wires are

dis-connected.

Capacitor wires are

dis

-

connected

.

Capacitor is defective.

Motor coil shorten.

Brake lining on bearing ass

’

y

is

worn out.

Brake lever ass

’

y is defective.

Brake lining

is

worn out.

Brake lever ass

’

y is defective.

Torque motor is broken.

Foreign matter in valve.

Valve spring is deformed.

Valve bellows is

deformed.

Torque motor lead wire is

disconnected.

Control circuit board is

defective.

WWA-780

c. Wash/Rinse

No

Yes

No

Yes

No

Yes

Yes

No

No

d. Drain

Yes

No

TROUBLE INSPECTION CAUSES REMEDY

Washing cycle does

not start even if

water keeps the

selected water level.

INSPECTION

Does the spin tub

rotated normally

when the

WASH OPTIONS

button is set t

o

SPIN?

Bearing ass

’

y is defective.

Poor connect of

connectors

Thermostat on motor is

opened.

Control circuit board is

defective.

Replace.

Replace.

Repair or replace

after cooling down.

Replace.

Does the pulsator

rotate by hand?

Does humming

noise come on

from motor?

Replace or repair.

Replace or repair.

Replace.

Replace.

The spin tub rotates

together with the

pulsator during

washing or rinsing

cycle.

Replace bearing ass

’

y.

Replace bearing ass

’

y.

Note:

Break-work is

normal when spin

tub stops within 10

sec. under no-load.

Does brake-work

normally?

Replace bearing ass

’

y.

Replace

bearing

ass

’

y.

Is the torque motor

working normally?

Replace.

Water does not

drain out.

Clean valve inside.

Replace spring.

Replace bellows or

replace valve.

Repair or replace.

Replace.

Is the torque motor

working normally?

WWA-780

e. Spin Drying

Yes

No

TROUBLE INSPECTION CAUSES REMEDYINSPECTION

Note: In draining, the water lever sensor can

not reset in 8minutes.

The number window LED display

abnormal code: and begin blinking

on and off at the same time and the

electric buzzer sounds to indicate a

problem.

Note: In draining, the water level sensor can

not reset in 10 minutes.

The number window LED display

abnormal code: and begin blinking

on and off at the same time and the

electric buzzer sounds to indicate a

problem.

Spin drying cycle

does not work.

INSPECTION

Does safety

device work?

Machine inclines. Replace with level.

The V-belt is slipping.

The V-belt is snapped.

Small pulley mounting

screw is loosed.

Motor is disconnected or

burnt.

Capacitor is broken or

disconnected.

Bearing ass

’

y is defective.

Torque motor is defective.

Brake lever is defective.

Thermostat on motor is

opened.

Poor contact of

connectors

Control circuit board is

defective.

Adjust the motor

position.

Replace.

Tighten up.

Replace.

Replace.

Replace.

Replace.

Repair or replace.

Repair or replace

after cooling down.

Repair or replace.

Replace.

Note:

1.

The safety switch works 3 times

continuously

or works 1 time in the

single program of spin-dry

.

The

number window LED display abnormal

code: and begin blinking on and off

at the same time and the electric buzzer

sounds to indicate a problem.

2. Do not disconnect the wire from the

capacitor, because this wire acts as

de-pressing noise from outside to the

micro-computer.

Drain takes time too

long. Valve bellows is deformed.

Drain hose ass

’

y is

deformed.

Hose is connected in the

wrong way.

Hose is too long or position of

hose is too high.

Replace.

Repair or replace.

Repair.

Repair.

• If the Drain Hose is too long or high, it may

make draining impossible.

• The extend Drain Hose to a maximum long of

3 meters and maximum high of 10

centimeters.

WWA-780

Operation of safety device

When the safety device works by abnormal swing of spin drum, machine works automatically to

stop Spin-Dry cycle and operates water supply valve to pour water into the Wash/Spin Tub and

then starts washing cycle for replacing washing clothes evenly.

After above operation has down twice, if safety device works again, machine will stop, and the

number window LED display abnormal code: and begin blinking on and off at the same time

and the electric buzzer sounds to indicate a problem.

• Open the Wash Lid and rearrange the clothes evenly around the Wash/Spin Tub.

• Close the Wash Lid and press the START/PAUSE button again.

f. Buzzing and rattling

Low

High

TROUBLE INSPECTION CAUSES REMEDYINSPECTIONINSPECTION

Start of spin-dry. Normal spin.Safety device work.

Electric circuit

counts operation

of safety device.

Electric circuit works to stop

spin when safety device

detects continuously three

times of abnormal swing of

spin drum.

Automatic

adjustment or

load. Stop of Spin-Dry

Agitation of load (Rinsing

for 2 minutes).

Buzzing/rattling

during water

supply.

INSPECTION Nut of water supply hose

is loose.

Something in water valve.

Tighten nut.

Replace.

INSPECTION

Is high water

pressure (more

than 4kg/cm

2

)?

Faucet open too far. Adjust faucet

turning.

Water supply

WWA-780

Yes

No

TROUBLE INSPECTION CAUSES REMEDYINSPECTION

Buzzing/rattling

during washing

or rinsing.

Does some noise

sound during

spin drying?

Belt is slipping.

Pulley is loose.

Some part touch motor

Adjust.

Tighten.

Repair or replace

Something underneath

pulsator.

Pulsator is rubbing.

P

ulsator shaft is burnt.

Remove.

Adjust bearing ass

’

y.

Replace bearing ass

’

y.

Buzzing/rattling

during spin-dry. Is sound in

low-pitched

monotone?

Bearings of bearing ass

’

y

is defective.

Replace.

Is variable sound

happened by

vibration?

Does noise sound

when the washer

begins to work?

Is clattering on

maximum

rotation?

Is flapping?

Machine is in unbalance.

Suspension rod ass

’

y is

worn out.

Belt is slipping.

Motor pulley is loose.

Wire and/or air trap hose

is loose.

Place machine

evenly on base.

Replace.

Adjust.

Tighten up.

Tighten.

WWA-780

PART LIST

Key No.

Part No.

Description

部件名称规格•用途

Q

’

ty

1 301285150T140

Wire bunch

洗衣机线束 1

2 3012811203140

Nylon Wire fix

尼龙扣

固定洗衣机线束在电脑板盒上

2

3 3012175656140

Shielding plate A

电脑板盒盖 A 阻燃等级 5VA 1

4 3010874579040

Control Circuit Board Complete

电脑板完成 1

5 3012175657140

Board lid B

电脑板盒盖 B 1

6 STATN408R0SE-

SCR 4×8E

螺钉 4×8E 固定电脑板盒盖 B 1

7 ST1TN40160SE-

SCR 4×16E

螺钉 4×16E 固定电脑板完成 7

8 301217670N140

Panel sticker

控制塑贴印刷完成

1

9 STATN40100SE-

SCR 4×10E

螺钉 4×10E 紧固磁性开关 1

10 3012152514140

Reed Switch fixture

压线片固定磁性开关 1

11 3014292S04140

Reed Switch

磁性开关 1

12 3012160510145

Screw Lid

螺钉盖亮灰色，贴在面架上

2

13 ST1TN40120SE-

SCR 4×12E

螺钉 4×12E 固定面架 2

14 3012160141040

Top Plate

面架亮灰色 1

15 3012143454140

Cushion

橡胶垫安装在面架上 2

16 3012256137141

Detergent Tray 粉末盒印刷完成

1

17 3012161334040

Lid assembly

洗涤上盖组件 1

17-1 3012161418044

Washer Lid A

洗涤上盖 A 透明灰 4

17-2 3012161419040

Washer Lid B

洗涤上盖 B 亮灰色 4

17-3 3012160454140

Lid Handle A

盖板把手 A 亮灰色 1

17-4 3012160455140

Lid Handle B

盖板把手 B 亮灰色 1

17-5 ST1TN40120UK-

SCR 4×12

螺钉 4X12E 固定把手，不锈钢 1

18 3012160613140

Hinge Shaft

上盖轴销 1

19 3012160717140

Lid Spring

盖板弹簧 1

20 3012161202140

Gradienter Cover

水平仪罩无色透明 1

21 3010161102140

Gradienter

水平仪黄绿色 2

22 ST1TN40140SE-

SCR 4×14E

螺钉 4×14E 固定桶开关 1

23 3010571005140

Safety Device Switch

桶开关组件 1

24 3014291S03140

Water Level Sensor

水位传感器 1

25 3012334002140

Hose Band

软管卡簧

通气软管水位传感器端用

1

26

3012324212140

Air Trip Hose

通气软管 L=580 1

27 3012143414140

Cushion

海绵套环保护通气软管用 2

28 ST1TN40120SE-

SCR 4×12E

螺钉 4×12E 固定面架 2

29 ST1TN40120SE-

SCR 4×12E

螺钉 4×12E 固定后板 2

30 301213144V140

Norms nameplate

规格铭牌贴于面架后端中间 1

31 3012131726140

Notice Label

注意铭牌贴于后板右上面 1

32 3012175137140

Back Plate

后板亮灰色 1

33 3010317129040

Pour Inlet Complete

进水盒完成

33-1 ST1TN40120SE-

SCR 4×12E

螺钉 4×12E

固定进水阀与进水盒组件用

3

33-2 3014294S37140

Water Valve connecter

进水阀 1

33-3 3012324905140

Water Valve tie-in

进水阀连接器 1

33-4 3012212701140

Pour Inlet assembly

进水阀接头 1

33-5 3010317128040

Water Valve connecter

进水盒组件 1

WWA-780

Key No.

Part No.

Description

部件名称规格•用途

Q

’

ty

34 ST1TN40120SE-

SCR 4×12E

螺钉 4×12E 固定进水盒完成 3

35 3012914201140

Stopping Pin

止退销电气镀锌 4

36 3012234201140

Spring Damper Base

吊杆球座白色 4

37 3010111033045

Frame Complete

箱体铆接组件亮灰色 1

38 3016942S01140

Fiber Tape

纤维胶带

贴于箱体后边缘（辅料，BOM 中不出现）

1

39 3012122201140

Back Cover

后罩盖亮灰色 1

40 3012912223140

SCR 4×8E

螺钉 4×8E 固定后罩盖 6

41 3012122101142

Frame Handle

箱体把手亮灰色 2

42 3012334001140

Hose Band

软管卡簧紧固排水阀-排水内管

1

43 3010324702140

Drain Hose assembly(Inside)

排水内管组件 1

44 3012334004140

Hose Band

软管卡簧紧固排水内管-排水管

1

45 3010325103141

Drain Hose assembly(Outside)

排水软管组件 1

46 3012152302141

Leg

底托淡灰色 1

47 ST1TN40120SE-

SCR 4×12E

螺钉 4×12E 固定底托 4

48 3010143002140

Adjuster Assembly

可调脚组件 1

49 ST1TN40160SE-

SCR 4×16E

螺钉 4×16E 固定底托前端 5

50 ST2TN60200SE-

SCR 6×20E

螺钉 6×20E 固定缓冲垫 3

51 3012143401140

Cushion

缓冲垫 3

52 3012234301140

Sound-Proof Board

底托屏蔽板淡灰色，安装于底托上

1

53 ST1TN40140SE-

SCR 4×14E

螺钉 4×14E 固定底托屏蔽板 1

54 3010812012140

Cord Assembly

电源线组件 J2 插头 1

55 ST1TN40100SE-

SCR 4×10E

螺钉 4×10E 固定电容器组件 1

56 3012152501140

Cord Stay

电源线束缚 1

57 3010856501140

Earthing Wire Assembly

地线组件 1

58 SFSPG40100SA-

SCR 4×10A

螺钉 4×10A 箱体接地用 2

59 SVCNN40KA----

Washer SPR 4

垫片箱体接地用 2

60 3012152502140

Wire Stay

导线束缚

L=160，线束与箱体固定用

2

61 3010868006140

Capacitor Assembly

电容器组件 10.5μF/500V Ac 1

62 3012871103140

Compressed Connector

压接套管阻燃 V-0 4

63 3012871102140

Compressed Connector

压接套管阻燃 V-0 1

64 3012234109140

Sound-Proof Board

防音板

阻燃不织布 150×157 包裹扎线塑料袋

1

65 3012813007140

Part Bag

扎线塑料袋阻燃 150×105 1

66 3012152502140

Wire Stay

导线束缚

L=160L 通气软管与外桶固定用

2

67 3012152503140

Lead Stay

导线卡线束固定用 2

68 3012122301145

Drain Cap

排水口盖淡灰色 1

69 3012411301140

Pulsator Screw

波轮螺钉 1

70 3012411401140

Pulsator Screw Washer

波轮螺钉衬垫 1

71 3012411007044

Pulsator

波轮亮灰色 1

72 3012411501140

Pulsator Screw Washer

波轮垫片 1

73 ST1TN40140SE-

SCR 4×14E

螺钉 4×14E 固定外桶盖 4

74 3012221202140

Outer Tub Cover

外桶盖亮灰色 1

75 3010240022040

Spin Tub Complete

脱水桶完成 1

75-1 3010240103045

Balance Weight Assembly

平衡环组件亮灰色 1