Midea A1 4.5kg User manual

Service Manual
Drum Washing Machine
Http://global.midea.com.cn
Note:
Before serving the unit,please read this at first,
Always contact wih your service center if meet problem.
A1/D1(4.5/5.0/6.0/7.0kg)

1. …...................................................................................................................
2. INTRODUCTION ....................…...........…............................................
2.1 Characteristics of product ..................................................................................................................
2.2 .............................................................................................................................
SAFETY PRECAUTION
OF WASHING MACHINE
Working principle
3
4
5
5
P.02
TABLE OF CONTENTS
3.TROUBLESHOOTING
.3 3 Fault tree
3.3.1 non-heating malfunctionMaintenance
...........................................................................................
10
3.3.2 Door non-locked & its maintenance
..............................................................................................
11
3.3.3 No water inlet or water inlet overtime
............................................................................................
12
3.3.4. Heating beyond the setting temperature its maintenance
.......................................…....................
13
3.3.5. of non-drain or drain exceed the setting timeMaintenance
............................................................
14
3.3.6. Water inlet overflow malfunction maintenance
............................................................................
15
3.3.7. Drum non-rotating malfunction maintenance
................................................................................ 16
3.3.8. water inlet and water outlet at the same time Maintenance
............................................................
17
..........................................................................................................
4.1.1Undo the back cover .........................................................................................................................
4.1.2 Undo the top cover
.........................................................................................................................
4.1.3 Undo the control panel .....................................................................................................................
4.1.4 Undo the lower panel ...................................................................................................................
4.1.5 Undo the door lock ...........................................................................................................…..........
4.1.6 Undo the front panel .......................................................................................................................
4. UNPACKING WAYS OF MAIN PARTS
4.1 Overeview the unpacking step
........................…........................................................................................
6
3.1 Malfuction and solution
4.1.11 Undo the pressure switch
.............................................................................................................
4.1.12 Undo the pulley ............................................................................................................................
4.1.13 Undo the upper counterweight ......................................................................................................
4.1.14 Undo the absorber pin ..................................................................................................................
4.1.15 Undo the filter ..............................................................................................................................
4.1.16 Undo the drain pump ...................................................................................................................
4.1.7 Undo the gasket
..............................................................................................................…..........
4.1.8 Undo the PCB panel ...................................................................................................................
4.1.9 Undo the detergent box ....................................................................................................................
4.1.10 Undo the inlet valve .....................................................................................................................
4.1.18 Undo the NTC temperature sensor .............................................................................................
4.1.19 Undo the door glass .....................................................................................................................
4.1.20 Undo the panel support ................................................................................................................
4.1.21 Undo the drum tub assembly
........................................................................................................
4.1.22 Undo the absorber
......................................................................................................................
4.1.24 Undo the motor
19
19
19
19
20
20
18
22
23
23
24
23
23
21
21
22
24
24
25
25
26
...........................................................................................................................
26
24
4.1.17 Undo the heater
...........................................................................................................................
3.2 Schedule of failure alarm
.......................…....…...............................................................................
8
23
4.1.23 Undo the conterweight
................................................................................................................
26

P.03
TABLE OF CONTENTS
5. CIRCUIT DIAGRAM
6. EXPLORED VIEW & LIST OF PARTS
5.1 The failure diagnosing and changing components
6.1.5 Door_assembly
6.1.4 Dispenser_assembly
6.1.3 Top cover_sub
6.1.1 Cabinet_sub
6.1.2 Tub_sub
28
30
31
32
33
33
..........................................................................
...............................................................................................................................
..............................................................................................................................
.................................................................................................…......................
...............................................................................................................
...........................................................................................................................
6.1 Explored view & of PartsList 29
...................................................................................................

1.SAFETY PRECAUTION
P.04
1.Do not try to repair the machine by yourself. The machine may be damaged and its life be shortened.
What is worse, it will injure yourself.
2.Pull out its plug from the power socket before maintenance. Electricity!
3.Do not use several power plug with one socket.
To avoid fire, don’t use any socket with its actual current more than rated current.
4.Please check the power plug and socket whether damaged or not.
To avoid an electrical shock and fire, the power plug and socket should be replaced if they are damaged.
.Don’t try to clean up the washing machine with water, or else, it’s possible to cause an electrical shock or
and shorten its life. fire
6.Forbid the harness contact with water for avoiding wet and don’t extend it during maintenance. Don’t twist
the harness to avoid it distorted.
7.Please clean up the dirt and dust on the surface of the cabinet, harness and connection parts during
Please avoid fire because of the electric leakage of harness.
8.Check electrical parts, harness whether they have become moist and replace them if they are wet.
9.Check all parts of the machine and make sure to keep them in good condition after maintenance.
10.Fasten upon the power plug and pullit out .
Be careful of a fire and electric shock when power cord is damaged.
11.Pull out its power plug when this machine doesn’t work.
Be careful of an electric shock and fire because of levin.
12.Don’t put tinder or sprayer beside the washing machine.
Be careful of a fire and explosion because of electric spark.
13.Don’t put a basin of water or wet clothes on the washing machine.
It is possible to cause an electric shock or fire if water from wet clothes leaks in to the washing machine.
14.Do not place the washing machine in the place where it can be exposed to rain and snow. Or else, it may
cause an electric shock or fire, and therefore shorten its life.
15.Don’t press the button with sharp items such as nail, screw etc. Or else, it may cause an electric shock or
other damages.
16.This machine should be placed on the horizontal ground and installed correctly. The machine is liable to
shift on the gradient ground.
17.If the harness is damaged, it should be replaced completely.
18.It is necessary to put a mat on the floor and recline down the washing machine along its side when repair it.
It is possible to damage the electrical components if the front of the washing machine is placed at the ground.
19.During changing the heater of this machine, please check whether it is fixed on the blanket correctly and
whether the screw is fastened tight or not.
5
maintenance.

2.INTRODUCTION OF PRODUCTS
P.05
It is the latest designed machine, which have many advantages such as fashion, large rated washing
and large washing range. Specifically, its feature is as following:capacity
1.Large washing range from cotton to wool and silk.
2.Gentle washing: no twist and little abrasion.
3.Electron auto-balance system, that is, the PCB panel controls the speed of spin and ensures uniform
distribution of clothes to reduce the wear of textile caused by its vibration.
4.The drum of this machine is made of stainless steel of high quality and the cabinet is durable.
5.The maximum temperature of washing water could be controlled independently and it is up to 90℃.
6.Unique washing methods: rain, soak, throwing-knocking knead and so on, which can wash clothes
uniformly and improve washing performance.
7.Safety guard: water level control, door lock etc.
8.Anti-crease function: there is an automatic anti-crease and soak function in the synthetic program,
that’s, it doesn't drain at the end of washing and leave the clean extile in the water of the drum
to achieve the function of less crease, especially silk.
9.Function of adjusting speed : select different spin speed according to textile.
10.Electronic water distribution system: The machine uses PCB to control the inlet valve and
water properly at the different stages and dissolve detergent and softener distribute absolutely
to improve washing performance.
2.2.Working principle
Drum washing machine wash clothes mainly in virtue of mechanical friction, chemical force and
temperature force. When the machine works, the motor runs clockwise several seconds and runs
anti-clockwise several seconds to drive the drum whose three lifters hold up the clothes pressing
the inside of the drum. When clothes rise close to the against top, because the speed of motor is
low and the centrifugal force is not enough to overcome the gravity, clothes fall and impinge with
washing liquid (like manual throwing-knocking washing). The second force is the extrusion force
of clothes (like manual extrusion). The last force is the friction between clothes,clothes and
lifters(like manual knead). To improve washing performance, automatic drum washing machine
could automatically heat the washing liquid, whose temperature can be adjusted from 30℃ to 90℃.
The high temperature quickens the movement of the numerator of the washing liquid and speedups
2.1 haracteristics of product
C
the Chemical reaction. In a word, drum washing machine destroys bonding force between dirt and
clothes in virtue of intergraded force of water, detergent and mechanical force, to clean away the dust.

3.TROUBLESHOOTING
SolutionDescription
The washing machine does not work Close the washing machine's door.
Confirm and press the start key.
Water leakage Correctly connect the inlet water pipe.
The spin of the clothes is abnormal Reload and distribute the laundry evenly in the drum.
Thereis the peculiar smell in the
washing machine Run a Self-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. Plesae select 【rinse】 or【 spin 】programme
or brush away the fleck with the brush when the
clothes is dried.
The washing machine does not fill
The washing machine fills and
empties at the same time.
Make sure the end of the drainage pipe to be higher
than the water level of the inside the machine .
Check if the drainage pipe and sewage have been
sealed, if they have been, there will be the poor
ventilation to cause the siphonage effect.
No drainage of the washing machine
Check if the drainage pumps is blocked.
Check if the drainage pipe is bent or blocked.
Check the height of the drainage nozzle, make sure it is
0.6-1 meter from the bottom of the washing machine.
Vibration of the washing machine
Level the washing machine.
Fasten the footing.
To check if the internal packing for the transportation
have all been removed.
Check the selection of .the procedure
Check the water
Put through the feed-water.
To check it the inlet water pipe is bent or blocked.
Close the washing machine's door.
Pressure to seeif the water pressure is insufficient.
Open the water tap.
The bubble spills from the detergent
box
Check if the detergent is excessive, if it is the
specialized detergent for the cylinder washing machine.
Reduce the usage amount of the detergent in the next
time's wash.
Dip one scoop of the softener mixed with 1/2 liter of
water to the detergent box II.
3.1 Malfuction and solution
P.06

3.TROUBLESHOOTING
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
To stop for some time during the
wash procedure
contact the nearest service centre.
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
The washing machine adds water automatically.
Because there is too much bubble in the tube, the
washing machine is cleaning the bubble.
SolutionDescription
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.
P.07

P.08
3.2 Schedule of failure alarm
3.TROUBLESHOOTING
A1-D1 has no display screen; the alarm display is as below :
Status of Corresponding
Indicators
Off Off
Flash
Door lock
problem
Door is not closed properly. Restart after the door is closed
Reason Solution
Description
Please call up service line if there are still troubles.
OffFlash Off
Flash Flash
Drain problem
while washing
(drain time
exceeds 9 minutes)
Water injecting
problem when
washing (water
injecting time
exceeds 5
minutes)
Tap is not opened or water
flows too slowly.
Inlet valve filter is blocked.
Inlet pipe is twisted.
If water is not supplied
Open the tap or wait till
the water supply
becomes normal.
Check inlet valve filter.
Straighten the water pipe
Check the other taps in
the room.
Please call up service line if there are still troubles.
Please call up service line if there are still troubles.
Outlet hose is blocked or
twisted
Drain pump is blocked
Wash and straighten outlet
hose.
Wash drain pump filter
Please call up the service line if there is any other problem.
Temp.90
Temp.60
Temp.40
Temp.cold
Off
Off Off Off
It suitable for use these model :A1/D1

P.09
3.3Fault tree
Reliable connection
Y
N
Whether the connect
is well
Change NTC
Y
N
Whether NTC is short
or open circuit
Y
Whether the pressure
switch is well or not
N
YChoosing new heating
temperature
Y
Whether to set up
non-heating
Non-heating
Whether the heater
is well
NChange the heater
Y
Change the control panel
Maintenance non-heating malfunction1.
3.TROUBLESHOOTING

P.10
2. Door non-locked & its maintenance
Close the door correctly
Whether the door is
closed correctly
Y
N
NPush the start button
to start the program
N
Reliable connection
The door is
invalid and should
be replaced
lock
Y
Y
Y
Y
N
Door non-locked
Whether push the
start /pause button to
start theprogram
Change the control panel
Whether the voltage
between harness 1 and
harness 3 is about 220v
Whether the harness
connection between the
door lock and the main
board is well
3.TROUBLESHOOTING

P.11
Change main board
Y
Whether the
connection is well
N
Door is invalid and
should be replaced
lock
Y
N
Y
Whether the door
is closed correctly
N
Y
Y
Whether the tap is opend
Y
No water inlet or
water inlet overtime
N
Y
N
Y
Y
N
N
N
Change the inlet valve
N
N
Change the control panel
Whether the
switch is well
pressure
Y
N
Y
Push start/pause button
Cleaning with brush
Change the
switch
pressure
3. No water inlet or water inlet overtime
Whether press
start/pause button
after choosing the
program
Whether door
lock 3 and 2 is
connected correctly
Whether the voltage
between door lock 1
and 3 is 220V
Whether the
electromagnetic
valve buzz
Whether the
connections of inlet
valve is well
Whether the inlet pipe
is fold or the water is
cut off
Whether the
inlet valve coil is
well
Whether the inlet filter
net is blocked
Whether the
connection of
pressure switch is
well
Connect
connections
3.TROUBLESHOOTING
Y

P.12
4. Heating beyond the setting temperature its maintenance
Change NTC
Y
Whether the
connection is well
N
Whether NTC is
short circuit or
open circuit
Y
加热过度
Y
Change the control panel
Over heating
3.TROUBLESHOOTING

P.13
N
Y
N
Whether the
door lock is
well
Close the door Whether the
door is closed
Y
Y
Non-drain or
overtime drain
Change
panel
the control
N
Reliable connection
N
N
Y
Return to the normal station
Change the
drain pump
Y
Cleaning the
filter
N
Y
N
Y
Y
5. of non-drain or drain exceed the setting time Maintenance
Whether it is in
the state of pause Push start/pause button
Whether the
pump is vibrating
Whether the
connection between
the pump and the main
board is loosened
Whether the
pump is blocked
or burned out
Whether the filter
is blocked
Whether the drain
pipe is fold or hung
too high
3.TROUBLESHOOTING
The means of detecting door
switch refers to the paragraph
of "no water inlet".

P.14
6. Water inlet overflow malfunction maintenance
Hang the hose well
Whether the drain
hose is hung up
Y
N
YC
inlet valve
hange the inlet
Y
NReliable connection
Y
Y
N
Y
N
Water inlet overflow
Whether the electric
connection of pressure
switch is normal
Change the control panel
Whether the water
is in without power
Whether the gas pipe
or the connection is
leaking or deadlock
Change or revive
the gas pipe
Whether the
switch is well
pressure
3.TROUBLESHOOTING

P.15
7. Drum non-rotating malfunction maintenance
Change the control panel
NThe drum is blocked
Drum non-rotating
Y
Whether the door
is closed correctly Close the door
Whether the door
lock is well
Y
NChange the door lock
N
Y
Y
Y
Whether the motor
is well
Whether the
connection of main
and auxiliary wiring
harness is well
NReliable connection
Y
Whether the inlet
is correct
NWaiting inlet or inspect
overtime water inlet
malfunction
Whether the
switch is well
pressure
Y
Y
NReplace it
NReplace it
Detach strap,
whether the drum
is rotating flexibly
3.TROUBLESHOOTING

P.16
8. water inlet and water outlet at the same time Maintenance
Whether the washer is
disposing the foam in
the drum
Change the control panel
N
Y
Normal phenomenon
Y
Water inlet and water outlet
at the same time
Whether the drain hose
is hung too low
N
Y
Hang the hose well
3.TROUBLESHOOTING

P.17
4.UNPACKING WAYS OF MAIN PARTS
4.1 Overeview the unpacking step
1.
2. Undo top cover
3. Undo the control panel
4. Undo the lower panel
5. Undo the door lock
6. Undo the front plate
7.
8. Undo the gasket
9. Undo the PCB panel
10.Undo the detergent box
11.Undo the inlet valve
12.Undo the pressure
13.Undo the pulley
14.Undo the upper counterweight
15.Undo the absorber pin
16. Undo the filter
17.Undo the drain pump
18.Undo the heater
19.Undo the NTC
20.Undo the door glass
21.Undo the panel support
22.Undo the drum tub assembly
24.Undo the motor
Undo the back cover
Undo the facade counterweight
23.Undo the absorber

P.18
4.UNPACKING WAYS OF MAIN PARTS
Operation step Picture
1 Undo the back cover
Undo two screws fit
between back plate and
cabinet, and then pull out
the back plate .
2 Undo top cover
Undo 2 screws fit
between the top cover and
back cabinet
Push back the top cover
15mm until it leaves away
from, the control panel,
and then take it down.
①
.
②
3 Undo the control panel
Departing the top cover
(means as above)
Draw out the detergent
drawer
Loosen two screws fit
on the control panel
(facial).
Loosen two screws fit
on the control panel(top)
①
.
②
.
③
④
.
Press three clasps
between top control panel
and panel support.
Take out the control
panel inclined from the
cabinet
⑤
⑥
.
(5.0/6.0/7.0 counterweight)
(4.5kg counterweight)

P.19
Operation step Picture
4.UNPACKING WAYS OF MAIN PARTS
4 the lower panel
Open the filter cover,
release the screw on the
lower panel.
Turn the washing machine
back at an angle, pinch the
clasp ,and push it out.
Undo
①
②
5 Undo the door lock
Open the door of
washing machine.
Take the outer gasket
clamp to the drum.
①
②
Remove two screws on
the door lock, and take
down the door lock.
Take out the door lock
and draw out the plug; pay
attention to the position
of the plug so as not to
connect a wrong circuit
next time.
③
④
6 Undo the front plate
Undo the door lock
(methods as followed).
Remove the lower
cover(methods as
followed).
①
②

P.20
Operation step Picture
4.UNPACKING WAYS OF MAIN PARTS
Picture
③
④
Undo five screws in
the front plate.
Put the front plate up
to the clasp of the front
plate away from the
loading holder, and then
take off the front plate.
①
②
.
③ Loosen
8 Undo the gasket
Undo the top cover,
control panel, lower cover,
machine door and the front
plate(methods as
followed).
Remove the outer
gasket clamp between the
door seal and the front
plate
the inner gasket
clamp between the door
seal and the front of the
outer tub, and take out the
gasket.
9 Undo the PCB panel
Undo the top cover
and control panel(methods
as followed).
7Undo the facade counterweight
Undo the front plate
(methods as followed).
Remove six screws pull out
①
②
the facade counterweight.