Midea C01 Service Manual

Page 1
Service Manual
Washing Machine
Model:C01
Note
Before service the unit, please read this manual first. Contact with your service center if meet problem
Page 2
1 PRECAUTION………………….………………..…………………………………………………. 3
1.2 Servicing Precaution
1.3 Cautions For Safety
2 FACTORY PATTEN DETECTION …………….………………………………………………. 7
3 UNPACKING WAYS OF MAIN PARTS……………………………………………………… 10
4 MALFUNCTIONS CODES AND EXPLANATIONS ……………………………………… 18
5 TROUBLESHOOTING …………………………………………………………………………… 20
5.1 Maintenance non-heating malfunction
5.2 Door non-locked & its maintenance
5.3 Door non-locked & its maintenance
5.4 Heating beyond the setting temperature its maintenance
5.5 Maintenance of non-drain or drain exceed the setting time
5.6 Water inlet overflow malfunction maintenance
5.7 Drum non-rotating malfunction maintenance
5.8 Maintenance water inlet and water outlet at the same time
6 CHECK POINT OF CIRCUIT …………………………………………………………………… 30
7 SERVICE TOOLS……..………………............................................................................... 31
8 APPENDIX………………………………………………………………………………………….. 32
Contents
2
Page 3
1 Precaution
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
1.2.1 Observe 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 than 1 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.
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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
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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. It may cause a fire or explosion.
1 Precaution
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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
Page 7
2 FACTORY PATTEN DETECTION
7
2.1 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 30s.
Press [K1] or [K2] to select test program. Press [K8] button to confirm your selection and start the selected test. If you want to go back to test selection interface, press the [K8] button to cancel previous selection.
2.1.1 Version switchover (t01)
1) Enter into service mode, LED displays “t01”
2) Press [K8] button, LED displays “0xx”.x means current version.
3) Press [K2] to confirm switchover.
4) Press [K3] to change version.
5) Press [K2] button continuously for 3s to confirm your change.
6) Press [K8] button to close all output and exit this program. LED displays “t01”.
2.1.2 Error code checking (t02)
1) Enter into error code mode, LED displays “Err”. Press [K8] button and LED displays EXX(x=1,2,3….)
2) Press [K1] to show the last code and press [K2] to show the next code. The latest 10
error codes
can be found in system, and same error code is recorded one time even if it occurs
more than one time
3) If no error information found, LED shows E00.
4) 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.
5) Press [K8] button to exit, LED display t02.
2.1.3 Version information checking (t03)
Version information checking is used to show the current version information stored in nonvolatile memory applications.
1) Enter into service mode, LED displays “cod”.
2) Press [K8], LED displays project number.
3) Press [K1] button, LED displays version number.
4) Press [K8] to go back to version information checking status, LED display “t03”.
K1 K2 K3 K4 K5 K6
K7
K8
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2.1.4 UI Checking (t04)
1) Press [K8] button to illuminate the whole LED display.
2) Press [K1] button, the whole LED display flashes.
3) Press [K8] to stop flash, LED display “t04”
2.1.5 Drain pump checking (t05)
1) Enter into service mode, LED displays “pup”.
2) Press [K8] button to drain out all the remaining water. If all water drained out, LED
displays “god”,and 6 minutes later ,if there is still water remains in it, LED displays “FP”.
3) Press [K8] button to exit, LED displays “t05”
2.1.6 Pressure switch checking (t06)
1) Enter into service mode, drain out the water, LED displays LL.
2) Press [K8] button to activate inlet valve. LED displays level frequency once water lever get the main wash level,after the water level reaching the overflow line, drain out all the water.
2.1.7 Water temperature sensor and heater checking (t07)
1) Press [K8] button to activate the main inlet valve and get the water lever to heating level then turn on the heater and 5 min later turned off automatically.
2) After heater turned on, LED displays the current temperature. Detect the real temperature of inner drum and check with the numbers on the display.
3) Press [K8] button to exit, LED displays “t07”
2.1.8 Inlet valve checking (t08)
1) Enter into service mode, drain out the water, LED displays “UU”. Press [K8] button, LED displays “out”.
2) Press [K1] button, LED displays “u2” and switch on prewash valve for 5s.
3) Press [K1] button, LED displays “u1” and switch on the main wash inlet valve for5s.
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.
2.1.9 Rotating checking (t09)
1) Enter into service mode, LED displays “tUB
2) Press [K8] button, inner drum rotates in 45r/m clockwise for 10s and stop for 10s, over and over again.
3) Press [K8] button to turn off the motor and exit, LED displays “t09”.
2.1.10 Spin speed checking (t10)
1) Press [K8] to enter into service mode, LED displays “spn”.
2) Press [K8] button again, 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.
( If declared speed ≥1000rpm, target speed is 1000rpm and if declared speed <
1000rpm,target speed is its declared speed)
3) Press [K8] button to exit and LED displays “t10”.
2 FACTORY PATTEN DETECTION
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2.2 Self-check
- Turn on the machine , to take turns K3】【K5】【K3】【K5,the door locked, enter the test mode, display the T01, press the K1or K2to show T15.
- Press [K8] button, put into the function test mode, display TST, then press again,
display version number and project number;
- Press K1or 3 seconds later again, display the temperature of NTC;
- Press K1or 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 ,pre- wash 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 K1or 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.
2.3 Marketing-show (no-water testing)
The sales display mode can not be used in this PCB.
2 FACTORY PATTEN DETECTION
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3. UNPACKING WAYS OF MAIN PARTS
1. Undo the back cover
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. Undo the facade counterweight
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 absorber pin
15. Undo the filter
16. Undo the drain pump
17. Undo the heater
18. Undo the NTC
19. Undo the door glass
20. Undo the panel support
21. Undo the drum tub assembly
22. Undo the absorber
23. Undo the motor
3 UNPACKING WAYS OF MAIN PARTS
10
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111111
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
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 .
3 UNPACKING WAYS OF MAIN PARTS
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1212
4
. Undo the service plate
box
I.Open the filter
cover,
release the screw on
the
lower panel. II.Turn the washing
machine back at an angle,
pinch the clasp ,and push it out.
5
. Undo the door lock
I.Open the door of washing machine.
II.Take the outer gasket
Take the outer gasket III.Remove two screws on the door lock, and take down the door lock. IV.Take out the door lock and draw out the plug.
6
. Undo the front plate
I.Remove the service
plate
box
. 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.
7.
Undo the lower counterweight I.Undo the front plate II.Remove
four screws pull out the lower counterweight.
3 UNPACKING WAYS OF MAIN PARTS
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13
3 UNPACKING WAYS OF MAIN PARTS
1313
8. Undo the gasket I.Undo
the top cover,
control panel, service
plate box, machine door
and the front plate.
II.Remove
the outer gasket clamp between the door seal and the front plate. III.Loosen
the inner gasket clamp between the door seal and the front of the outer tub.
9. Undo the PCB panel
I.Undo the control panel II.remove 5 screws
between the control panel
and PCB panel
10
. Undo the detergent box
I.Undo
the top cover and
the control pane II.Release the hose clamp
and pull out the inlet hose.
III.Release
the hose clamp
and pull out the detergent
box hose, and then take out the detergent box.
11
. 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. IV.Take out the inlet valve
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141414
12
. Undo the pressure switch
I.Undo the top cover II.Pull out the plugs on the
pressure switch.
II.Loosen the pressure switch hose clamp, and pull out the hose from the pressure switch interface. III.Rotate the pressure switch anticlockwise by 90º, and then pull out the pressure switch.
13
.Undo the pulley
I.Undo the back cover II.Rotate the pulley and at the same time pull out the belt. II.Remove the screw on
the
pulley and then take
down
the pulley.
14
.Undo the upper
counterweight I. Undo the top cover II. Remove four screws fit on the upper counterweight and then pull out the upper counterweight.
15
. Undo the absorber pin
I.Undo the front plate II.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
two.
3 UNPACKING WAYS OF MAIN PARTS
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151515
16
.Undo the filter
Open the filter cover. Rotate the filter knob anticlockwise, and then pull out the filter.
17. Undo the drain pump
I.Undo the top cover, control panel, service plate box
and front plate.
II. Remove four screws
and
plug and nip out clamp between drain hose and the drain pump, and then pullout the drain hose.
18
.Undo the heater
I.Undo the top cover II.Undo control panel, service plate box, motor and front plate III.Remove the bolt and pull out the heater plug.
3 UNPACKING WAYS OF MAIN PARTS
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161616
19
. Undo the NTC
I.Undo the top cover, control panel, service plate box and front plate. II.Undo the NTC with
special tools.
20
.Undo the door glass
I. Open the door, remove two screws fixing the hinge and front plate,
and then remove the door. II. Remove eleven
screws on the inner door. III. Remove the outer
door
and the inner door
with
special tool.
21
.Undo the panel support
I. Undo the top cover II.Undo the control panel. III.Remove two screws fixing the panel support, and then remove it.
22.Undo
the drum tub assembly I.Remove the motor II.Pull out the heater. III.Remove the belt. VI.Remove the screws fixing the pulley, and then take out the pulley. V.Remove the screws
fixing
the front and rear tub,
and then remove the tub. VI.Remove the inner drum kit.
3 UNPACKING WAYS OF MAIN PARTS
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171717
23
.Undo the absorbers
I.Lift out the outer tub kit.
II.Undo the absorbers pin
between absorber and rear tub, remove the absorbers.
24
.Undo the motor
I.First let the machine lie
down on the back and
then pullout the motor wire and grounding wire. II.Use spanner to remove the motor screws, and lift up the motor with the other hand in case of falling to the drain pump
3 UNPACKING WAYS OF MAIN PARTS
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18
Malfunction
code
Reason Description Solution
E10
Inlet water overtime
The water level
doesn’t changed in 3
minutes during filling
the water.
Open the water tap, to check if the inlet hose is squashed or kinked, check the filter in the inlet valve is blocked or not; check if the water pressure is too low.
E12
Overflow
The water level is higher than the overflow water level.
Check the water inlet valve, Valve fail
E20
Fault connection of the drain pump
The
water level
doesn’t changed in 3
minutes during drain the water.
Check the drain pump. Check the filter of the drain pump to prevent jam. Check the drain hose to prevent jam.
E21
Overtime 3min of the drainage
The
water level.
Overtime draining
E30
The door has not been closed over
3 times
Fail to lock the door lock for 6 times when the PCB ties to lock the door lock after you press the Start keys.
Check the door hook and the door lock to get correct location.
E31
Don’t unlock the
door lock
Fail to unlock the door lock 6 times
Check the door Lock
E33
Water level
sensor fail
The frequency of the water level sensor is out of the spec.
Check the water level sensor
E34
Temperature sensor fail
The temperature sensor(NET) get broken
Check the PCB and the motor
E60
The motor don’t
drive
The motor don’t drive
for
5 times
Water temperature sensor
cutting
­out Check the PCB and the motor Check the motor communicate
wire
E61
The speed don’t
transmit signal
The PCB can’t get
speed transmit signal when the motor drive
Check the speed transmit line of the motor to prevent fall
of Check the PCB and the motor Check the motor communicate
wire
4 MALFUNCTION CODES AND EXPLANATIONS
Schedule of failure alarm
Page 19
19
Malfunction
code
Reason Description Solution
E62
The speed don’t transmit signal abnormality
Triac
get broken
Check the speed transmit line of the motor to prevent fall of Check the PCB and the motor Check the motor communicate wire
E70
The button get stuck when press it over 10 second The Power
button
lodge in the panel
Check the button install
and
control
4 MALFUNCTION CODES AND EXPLANATIONS
Page 20
5 TROUBLESHOOTING
20
Fault tree
1. Maintenance non-heating malfunction
Whether the pressure
switch is well or not
Change the control
panel
Whether the
connect is well
heating
Reliable connection
Whether NTC is
short or open
circuit
Change NTC
Whether to set up
non-heating
Choosing new heating
temperature
Non-heating
Change the heater
Whether the heater
is well
Y
Y
Y
Y
Y
N
N
Y
N
N
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21
2. Door non-locked & its maintenance
Whether push the
start /pause
button
Whether the harness
connection between the
door lock and the main
board is well
Whether the voltage open
between harness 1 harness 3
is about 220vand circuit
The door lock is
invalid and should be
replaced
Whether the door
is closed correctly
Close the door
correctly
Door non-locked
Change the heater
Change the
control panel
Push the start button
to start the program
N
N
N
N
Y
Y
Y
Y
Y
5 TROUBLESHOOTING
Page 22
3. No water inlet or water inlet overtime
Connect
connections
Whether press
start/pause button
after choosing the
program
Change main
board
No water inlet or
water inlet
overtime
Change the
pressure switch
Push start/pause
button
Change the inlet valve
Whether the door is closed correctly
Whether door lock 3
and 2 is connected
correctly
Whether the electromagnetic valve buzz
Whether the connections of inlet valve is well
Whether the inlet
valve coil is well
Whether the connection of pressure switch is well
Door lock is invalid
and should be
replaced
Whether the voltage between door lock 1 and is 220V
Whether the tap is opened
Whether the inlet
pipe is fold or the
water is cut off
Whether the inlet filter net is blocked
Whether the
pressure switch is
well
Change the control panel
Whether the
connection is well
Cleaning with
brush
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
N
N
N
N
N
N
N
5 TROUBLESHOOTING
22
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23
4. Cleaning with brush
Whether the
connection is well
circuit open
circuit
Change NTC
Over heating
N
N
Y
Y
Whether NTC is short circuit or open circuit
Whether the
connection is well
or not
5 TROUBLESHOOTING
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24
5. Maintenance of non-drain or drain exceed the setting time
Change the drain
pump
Whether the filter
is blocked
Reliable
connection
Whether the door
lock is well
Whether it is in
the state of pause
Push start/pause
button
Non-drain or
overtime drain
Whether the drain
pipe is too high
The means of detecting
door switch refers to the
paragraph of "no water
inlet".
Whether the
connection
between the
pump and the
board is
loosened
Change the
control panel
Close
the
door
Cleaning
the filter
button
N
Whether the
pump is blocked
or burned out between the door lock and the main board is well
Whether the
door is closed
Whether the
pump is
vibrating
Return to the normal
station
N
N
N
N
Y
Y
Y
Y
Y
Y
N
N
Y
Y
5 TROUBLESHOOTING
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25
6. Water inlet overflow malfunction maintenance
Whether the
water is in
without power
Change the control
panel
Whether the electric connection of pressure switch is normal
Reliable connection
Whether the gas
pipe or the
connection is
leaking or dead
lock
Change or revive the
gas pipe
Whether the drain
hose is hung up
Hang the hose well
Water inlet overflow
Change the inlet valve
Whether the
pressure switch is
well
N
N
N
N
Y
Y
Y
Y
Y
Y
5 TROUBLESHOOTING
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26
Whether the door
lock is well
Change the control panel
Whether the door is
closed correctly
Drum non-rotating
Whether the motor
is well
Close the door
Waiting inlet or inspect
overtime water inlet
malfunction
Replace it
Reliable connection
Detach strap,
whether the drum is
rotating flexibly
Change the door lock
Replace it
The drum is blocked
N
Whether the inlet is
correct
Replace it
N
N
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
5 TROUBLESHOOTING
7. Drum non-rotating malfunction maintenance
Whether the inner
wire connection is
correct
Shut down the power,
open the door and
Rotate the drum .
check the drum rotate
flexibly or not.
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27
8. Maintenance water inflow and drain off water at the same time
Whether the
washer is
disposing the
foam in the drum
Change the control
panel
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
5 TROUBLESHOOTING
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28
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
rinseorspin 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
5 TROUBLESHOOTING
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29
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.
5 TROUBLESHOOTING
Page 30
Before repairing, use multimeter to judge circuit stand of fail
.
6 CHECK POINT OF CIRCUIT
30
No
Parts Picture Test Description Parameter remarks
1
NTC
Check the resistance
Resistance
value range
4
-6KΩ–PASS
2
Water Level Sensor
Check the resistance between 1 and 3
Resistance value range about 10
-50 Ω -PASS
3
Door lock
Check the resistance
2 seconds after the power supply can automatically locked
Resistance
value range
30
-300Ω-PASS
4
Water valve
Check the resistance
Resistance value range 3-
6KΩ
-PASS
5
Drain pump
Check the resistance
Resistance
value range
15
0-250Ω-PASS
6
Heater
Check the resistance
Resistance
value range
20
-35Ω-PASS
Page 31
31
7 SERVICE TOOLS
Page 32
32
8 APPENDIX
Page 33
The end!
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