Whirlpool WWA-780 User manual

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