Whirlpool WWA-780, WWA-880 Service 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 RCUI T BOARD
CAPACI TOR
P
Y
R
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 REMEDY INSPECTION
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.
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