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16
HK07TVE SERIES
Error Display and Trouble shooting
Error message:Door is not properly shut 20s after program is started.
Troubleshooting:
N
Shut the door properly
Y
Pushing the door to Check Whether Door
is properly shut or not
Y
Door
lock
is
broken
and
need
replacing,then make sure wire is
connected properly.
Check the voltage between gray wire and
red wire of
power driver PCB,
is it
between AC 220-240V?
Cut off the power and then turn on
again.Check the voltage between brown
wire and blue wire of
door lock, is it
between AC 220-240V?
N
N
Replace
Power driver
PCB
220-240V
Y
N
Check if the wire connecting door lock
and power driver PCB is loose
Connect the wire properly
Error message:Drainage error, water not emptied within 4 min.
Y
Check if drain pump or
drian pipe is jammed ,And
open the filter and clean
Replace drain pump
Cut off power and water level pressure switch wire
connection,measure the resistance of 1 and 3 pin, is it
infinite?If not ,it is water leverl pressure switch failure
and replace it.If it is ,then repair and check PCB and wire
as followed.
Y
Y
Troubleshooting:
N
Check if water is emptied
N
N
Cut off the power and choose spin program to
start ,then check the import voltage of drain
pump, is it
between AC 220-2240 V?
Check if drain pump acts by touching
pump position
The wire between
PCB and drain
pump is not
connected
properly.
Replace the wire.
Y
N
Cut off power and pull out water level
pressure switch wire connection. Set spin
program to start.Check the export voltage to
drain pump, is it between AC 220-240V?
220-240V
Repalce power driver
PCB
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Front Load Washing Machine
17
Error message:Temperature sensor is not properly connected or damaged (display at the end of a
program).
Troubleshooting:
Cut off power and measure the resisitance
of temperature sensor by multimeter,is
it between 5-14k ?
Y
N
NTC exist open circuit .Replace it
Connect NTC well
Y
Check if NTC is connected properly
N
Disconnect the white wire and black wire
from PCB
,and measure if the resistance
between white wire and black wire
of
PCB ,is it
infinite?
N
Check the black wire and blue wire of NTC,
are they connected well ?
Y
Repalce power driver PCB
Connect all wires well
N
Repalce wire
Y
Error message:The heater may be broken
Troubleshooting:
Y
Cut off power,check the resisitance of
two
pins
of
heater
elelment
by
multimeter, is it between 32-35?
N
Heater elelment
must be
broken,please
replace it
Turn on power, and set wash mode ,then start.
Check the export voltage of power driver
PCB ,is it between AC 220V-240V?
Power
driver PCB
must be
broken ,plea
se replace it.
220-240V
Y
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Front Load Washing Machine
18
Error message:The required water level is not reached within 10 min, or the water level exceeds the
protection value
Troubleshooting:
N
N
N
Check if water is leaking from washer
bottom . inlet pipe.drain pipe or other
pipe connection
Check if tap is closed
or water pressure is
too low (usual between0.2 -1 MPa)
Check if inlet vavle is jammed
Readjust or replace the broken parts
Y
Y
Open the tap or wait for normal water pressure to use
Clean inlet vavle
Y
Observe if the height of
drain pipe
not reach
80 cm. If
water level
pressure switch and the
hose is leaking gas
N
N
N
Check if export voltage from power driver
PCB
to
electromagnetic vavle, is it
between AC 220-240V?
Replace Power driver
PCB
Turn on power, and set pre-wash mode ,then
start.
Check
the
import
voltage
of
electromagnetic vavle by multimeter
, is it between AC 220-240V?
Draw out the dispenser and check if water is
entering
Y
Electromagnetic vavle must be broken,please replace
it.
Y
The wire connected power driver PCB and inlet vavle
is not properly. Please reconnect it or replace it.
Y
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Front Load Washing Machine
Error message:Motor speed error. It may be not properly connected or damaged.
Troubleshooting:
19
Error message. Motor overheat protection or is damaged.
Troubleshooting:
Y
Y
Check if the wire of motor is connected well
with computer driving board
Cut off
power,and check if motor wire is
connected well
Connect them well and test.
Connect them properly and test.
Reconnect well
N
N
N
Y
Y
Replace power driver PCB
Put the motor in nomal temperature about
ten minutes,and then test again.If the
resistance is natural,
it is caused by
overheated protection.Then check
and
deal with
overload,abnormal voltage.If
not,please replace motor
Replace
Power
driver PCB
Y
N
Repair wires
N
Y
Pull out the motor insert string,and check the
resistance of motor speeed measurer and
the winding of the motor, is it as followed?
1-2£º3-4 4-5£º0.2-0.4
5-6£º0.2-0.4
4-6£º0.4-0.8
Check the import voltage between red wire
and white wire, is it between AC 220-240V?
Replace the motor.
Y
Cut off power and check if motor wires
are connected well
Y
Measure if resistance of motor winding by
multimeter,is it as followed? 4-5:0.2-0.4
5-6:0.2-0.4
4-6:0.4-0.8
N
Turn on power and set spin mode,then
start.Check the import voltage of driving
board between red wire and white wires,
is it between 220-240V?
Pull out the wire connection of motor and
driving computer board.Then check if circuit
is open by multimeter
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Front Load Washing Machine
20
Error message. Water level exceeds protection value.
Troubleshooting:
Clean water switch hose and air
collector
Y
N
Check if water switch hose and air collector
are jammed
N
N
Without power ,connect inlet pipe to inlet
vavle,then open the tap and observe if water
is entering in dispenser
Without starting but electrifying,measure the
import voltage of inlet vavle, is it between
AC 220-240V?
Pull out water switch inserts and turn on
power ,then set wash mode.while water
is entering at the position of 1/4 glass
window, check the resistance between ¢Ù
and ¢Ú, is it 0 ? Check the resistance
between ¢Ùand ¢Û ,is it infinite?
Replace
water
pressure
switch
Y
Replace inlet vavle
Y
Replace
Power driver
PCB
Y
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Front Load Washing Machine
21
HK1407 I Examination & Troubleshooting
Failure:Display nothing
Troubleshooting:
Repair power
supply
N
N
Press the power switch
Y
Y
Cut off power and check if
plugs are
connected well by pulling the plug of
PCB.
Press power switch and check the voltage
between two pins of power switch. Is
there 220-240V AC voltage?
Y
Is
power
switch
on ?
Check if power plug exists 220V-240V AC
voltage at the import pin
Y
Measure the power supply ,is it exists
220V-240V AC voltage£¿
Make sure power supply cabel assembly is
connected well and then replace power
switch.
N
Insert the plug well and test
N
Replace Power driver
PCB
N
Failure:no water inleting
Troubleshooting:
N
N
N
N
N
Is
there
open
circuit
between
electromagnetic vavle and PCB?
Choose pre-wash program and start£¬
Check if there is 220-240V at import pin
of electromagnetic vavle
Choose pre-wash program and start£¬
then check if there is 220-240V at export
pin of electromagnetic vavle
Check if filter of electromagnetic vavle
is jamed
Check if water is leaking from washer
connection ,especially between inlet pipe
and tap.to make sure of no bends.
Is the tap shut off or the water pressure
too low?
Open tap or wait for normal water pressure
Y
Reconnect inlet pipe.
Y
Clean filter
Y
Replace electromagnetic vavle
Y
Y
Reconnect the wire
Replace Power driver
PCB
N
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Front Load Washing Machine
22
Failure:no draining
Troubleshooting:
Y
Adjust the height of drain pipe to
80-100 cm
N
Is the height of drain pipe too high?
N
N
N
N
Cut off and check if the connection between
drain pump and PCB is open
Turn on power and choose spin program to
start.Measure if import voltage of drain
pump is 220-240V
Check if
hose connecting cylinder to pump
is bent or jammed
Turn on and choose spin program to
start.Measure if export voltage of PCB to
drain pump is 220-240V
Turn filter anticlockwise£¬open and check if
filter is jamed
Clean and tighten filter clockwise.
Y
Y
Arrange hose and clean
Replace drain pump
Y
Y
Replace the wire .
Replace
Power
driver
PCB
N
220-240V
Failure :abnormal noise and vibration
Troubleshooting:
N
Y
N
Is there
foreign material
in the washer ?
N
N
N
Remove belt and turn belt pulley by
hand,and then check if there is different
Are the screws of counterweight and
motor loose?
Is belt loose or worn?
Turn on power and set spin program,then
start£¬check if there is different noise from
motor
Y
Is washer in balance?
Is the pack screws dismantled?
Dismantle the screws
Clean
Y
Y
Y
Y
N
Y
Adjust adjustable feet
Replace it
Fasten them
Dismantle triangle and check
the
bearig
.If it
is
broken ,replace it.
Replace motor
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Front Load Washing Machine
23
Failure:water leaking
Troubleshooting:
N
N
Check if water is leaking from the inlet pipe
or the tap
N
N
N
Check if all tubes and tie-in is leaking
water, including the connecting of tube
and
vavle,
dispenser,
tube
and
dispenser ,outer cylinder-cushion of sight
window-hose and outer cylinder, drain
pump and gas vavle
Check if there is foreign material nipped
between cushion of sight window and
sight window
Is water leaking from outer cylinder?
Is cushion of sight window broken?
Is drain pipe broken£¿
Readjust it .
Y
Y
Y
Y
Y
Y
Replace drain pipe
Remove clothes
Reassemble or repair
Replace
cushion
of
sight
window
Replace outer cylinder