C7S
FAILURE FLOWCHARTS
Revisions:
Rev.01
Rev.02
14.01.2019
26.03.2019
First edition
Listen to the
customer's
complaint
PICTURE _1: Supply voltage is being
measured on the mains connector. (KN6)
Close the machine door, if open. Switch to service
mode. To enter the service mode, switch off the
machine by pressing the On/Off button.
While pressing the "1st auxiliary function" and "2nd
auxiliary function" keys at the same time, switch on
the machine using the "On/Off" key.
KN6
Is there 220 VAC between the
suppression filter terminals 1
and 2 (grey-grey)?
No
Check the mains cable and fuses.
Change the mains cable if
defective.
No
When you turn on the machine,
are the display and programme
selection key LEDs powered?
Yes
Yes
Yes
Remove the mains connector and
check if the socket is powered.
PICTURE: first_1
Is the front door locked? Check
by trying to open it.
Yes
No
Check the error code.
Is there an E9 error code?
No
Safety switch cannot be locked. Check
the cabling between the control board
and safety switch.
Open circuit on door
triac. Replace the
control board
Yes
1)Continue testing machine
functions in the service mode.
Is there an error
code?
No
OR
2)Proceed to the error codes
page to find the error code
matching the customer's
complaints.
Yes
Go to the relevant error
code page. Carry out the
checks about the error
code.
OR
3)Switch the machine back to the
customer mode and run it. Wait for the
error that the customer experienced.
Try to see the error code while the
programme is running.
No
Check the cable
between the
suppression filter and
the board, and make
sure that sockets are
securely fitted.
Replace the control
board
Replace the safety
switch. Try again.
* Machine washes
poorly
CUSTOMER'S
POTENTIAL
COMPLAINT
* Machine does
not heat water
* Programme
takes too long.
ERROR CODE
*Does not heat.
NAME OF
ERROR
*Machine boils the
water.
*Machine boiled
water once, but
now does not heat
at all.
* No washing
movement
*Laundry comes
out very hot; they
get worn.
* Door cannot be
opened
* Programme does
not end.
E1
E2
* NTC short
circuit
or
* NTC open
circuit
error
* Machine takes in
water continuously
and does not
discharge.
* Heateropen
circuit error
E3
E4
* Valve triac
short circuit
or
* Valve triac
diode error
* Heater
continuously
active error
Important Note:
*Programme takes
too long.
*Machine does not
drain.
*Machine does not
spin
E5
*Pump triac
open circuit
or
*Pump clogged
or
*Pump triac
diode
or
*Pump rotor
locked and not
rotating error
Error codes given do not necessarily mean that the error
is always caused by components.
Socket and cable connections must be checked first.
Make sure that the problems do not arise from loose
contact.
* Machine washes
poorly.
CUSTOMER'S
POTENTIAL
COMPLAINT
ERROR CODE
NAME OF
ERROR
* Machine
discharges every
time it is turned
on.
* Programme does
start.
E7
*Water level
sensor reading
error
Programme takes
too long.
*Machine does not
end the
programme
*Machine does not
take in water.
*Machine does not
function.
*It does not spin
or drain
*Machine drains
continuously.
E8
*No water
or
*Valve triac
open
or
*Pump triac
short circuit
error
* Washing ends
before the
displayed washing
time is over.
* Programme is
not completed.
Door jammed
Program is not
completed.
**Machine drum
does not rotate at
all.
* Machine leaves
water inside.
*Laundry comes
out with
detergent.
E9
*Door lock
triac open
circuit error
E10
*Door lock
triac short
circuit error
E11
*Motor phase
open circuit
CUSTOMER'
S
POTENTIAL
COMPLAINT
ERROR
CODE
NAME OF
ERROR
*Programme
is not
completed.
*Machine
does not
rotate.
E13
*BLAC motor
communicati
on cable
open circuit
error
* Machine
failed to spin.
* Time
extended.
* Although I did
not select
extra rinse,
machine
performed
another rinse
cycle.
* Machine
failed to spin.
, * Time
extended.
E17
E18
*Programme
finished
without
spinning due
to foam
*Programme
finished
without
spinning due
to unbalanced
load
*Machine door
won't open.
E20
*Door solenoid
triac or relay short
circuit
* Machine
does not
function.
*Machine does
not take in
water.
* Programme
ended in a
longer time.
* Machine did
not heat well.
E28
E29
*Door locked
signal (zero
cross) cannot
be received
Important Note:
Error codes given do not necessarily mean that the error
is always caused by components.
Socket and cable connections must be checked first.
Make sure that the problems do not arise from loose
contact.
*Operating
voltage out of
limit
* Machine washes
poorly
* Machine does
not heat water
* Programme
takes too long.
Is there an E1 error?
PICTURE E1-1: There is an NTC cable on the
KN9 socket (Display board)
(6th and 7th pins green-green / Display board)
Yes
E1
Attach the KN9
socket.
(Picture E1-1)
* NTC short
circuit
or
* NTC open
circuit
error
No
Is the KN9 socket on the
control board attached?
KN9
Yes
PICTURE E1-3: The NTC socket on the heater
is removed and the NTC resistance is
measured
Take out the KN9 socket and
measure the resistance on
the socket between the 6th
(green) and 7th (green) pins
(Picture E1-2)
PICTURE E1-2: The socket connected to the
KN9 connector is removed and the NTC
resistance is measured
KN9
Yes
Replace the control board.
PICTURE E1-4: NTC resistance to be
measured must be around 5.6K ohm at 25
degrees (Display board)
The measured value is
NTC resistance value.
Does it show approx. 5.6K under 25°C
temperature? (Picture E1-3)
(There should not be open
circuit/short circuit)
No
Open the rear cover of the
machine. After removing the
NTC socket on the heater,
measure the NTC value
directly on the NTC.
(Picture E1-4)
Important Note:
In case of NTC open circuit/short circuit and
heater open circuit on the washing machine,
i.e. if there is E1, E2 or E3 error, machine
performs cold washing and ends the programme
without the heater activated.
Yes
As the value measured on
the control board socket is
wrong, cabling is improper;
check it. There should not
be any loose or defective
cable or socket.
INFORMATION: NTC resistance
decreases as its temperature
rises. For example, it shows a
resistance of 9500 Ohm under
10°C, and
1700 Ohm under 50°C. These
values are not faulty.
Does it show approx.
5.6K Ohm under 25°C
temperature?
(There should not be open
circuit/short circuit
No
Replace the NTC. Re-attach
the removed sockets into
their places
*Does not heat.
*Machine boiled
water once, but
now does not heat
at all.
Is there an E2 error?
Yes
PICTURE E2-1: Heater socket on the KN1
board is removed. (Power board)
E2
PICTURE E2-2: Short circuit check is being
carried out between KN1 pin 1 and pin 2. (Power
board)
For easy
measurement,
remove the panel and
KN1 Heater socket.
(Picture E2-1)
KN1
KN1
* Heateropen
circuit error
Yes
PICTURE E2-3: Heater socket on the KN15
board is removed to check the cable. (Power
board)
Check for short circuit between KN1
connector pins 1 and 2.
(Picture E2-2)
Replace the control
board.
No
KN1
Measure the resistance of the heater on
the KN1 heater socket pins, is it approximately
27 ohm?(Picture E2-3) If not, check the heater cable
and socket.
Open the rear cover of the machine. Remove at least
one of the heater terminals and measure the heater's
resistance; is it approximately
27 Ohm? (Picture E2-4)
Yes
No
Replace the heater
PICTURE E2-4: One of the cables on the
heater is removed (left) and heater resistance
is being measured.
Does the heater
work although there is
no water?
No
You may start the washing
programme.
Yes
Check the water level sensor. Measure
the frequency between pins 1 and 2
(Blue-White) while the machine is empty
and powered. It should be around 625
Hertz. (Picture 2-5)
If faulty, replace the water level sensor.
Important Note:
In case of NTC open circuit/short circuit
and heater open circuit on the washing
machine, i.e. if there is E1 or E2 error,
machine performs cold washing and ends
the programme without the heater
activated.
PICTURE E2-5: Water level sensor is being
checked.
Machine is boiling
the water.
Laundry comes
out very hot; they
get worn.
Is there an E3 error?
E3
PICTURE E3-2: Short circuit check is being
carried out between KN1 pin 1 and pin 2. (Power
board)
Yes
For easy measurement,
remove the panel and the
heater socket. KN1
(Picture E3-1)
* Heater
continuously
active error
KN1
PICTURE E3-1: Heater socket on the KN15
board is removed. (Power board)
No
KN1
Check for short circuit between KN24
connector pins 1 and 2.
(Picture E3-2)
Yes
Does the heater work
although there is no water?
Check the water level
sensor. While machine is
empty and powered,
measure the frequency
between pins 1 and 2. It
should be around 625 Hertz.
(Picture E3-4)
Replace the control
board.
Yes
Open the rear cover
of the machine. Remove at
least one of the heater terminals
and measure the heater's
resistance; is it approximately
25 Ohm? (Picture E3-3)
No
Replace the heater
PICTURE E3-3: One of the cables on the
heater is removed (left) and heater resistance
is being measured.
PICTURE E3-4: Water level sensor is being
checked.
You may start the washing
programme.
Important Note:
In case of NTC open circuit/short circuit
and heater open circuit on the washing
machine, i.e. if there is E1 or E2 error,
machine performs cold washing and ends
the programme without the heater
activated.
* Machine takes in
water
continuously and
does not
discharge.
* No washing
movement
* Door cannot be
opened
* Programme does
not end.
E4
PICTURE E4-1: Water inlet valves
Is there an E4 error?
Yes
Is the machine taking
water continuously?
PREWASH
VALVE
MAIN WASH
VALVE
Yes
* Valve triac
short circuit
or
* Valve triac
diode error
Unplug the machine and
check if it continues taking
in water.
Yes
Does the machine
continue taking in water
although it is not
powered?
Yes
Replace the control board.
No
Replace the valve with a
water inlet (Picture E4-1)
*Programme takes
too long.
*Machine does not
drain.
*Machine does not
spin
Is there an E5 error?
Yes
E5
Check the machine's supply
voltage. If there is low supply
voltage, the pump will not
work.
*Pump triac open circuit
or
*Pump clogged
or
*Pump triac diode
or
*Pump rotor locked and
not rotating error
Yes
Start the machine after switching to the pump
programme.
PICTURE E5-1: Measuring the voltage going
from KN8 on the board to the pump (Power
board)
Is the pump motor running? (It
can be understood by touching
the filter cover.)
*Check and clean the pump filter
* Check if the drain hose's height and
length are appropriate, and correct if
necessary.
* Make sure that the drain hose is not
twisted or kinked.
Restart the pump programme after
taking in water.
Yes
No
KN8
While the
Nopump programme is running,
check if there is 220 VAC between KN8 pin
1 and pin 2 (purple-purple) without
removing the control board or any socket.
Picture E5-1
Can the pump drain water?
(Pump may be in triac diode. The
pump cannot pump even if it
creates vibration.)
PICTURE E5-2: Pump resistance is being
measured on the pump connector
Is there 220
VAC voltage?
No
Replace the control
board.
Yes
Switch off machine and remove its front
wall in order to check its pump coil
resistance. There should be approx. 180
Ohms between the two pins (purple-green)
of the pump connector. Check Picture E5-2.
There should not be any open circuit or
short circuit
Is the pump
resistance correct?
No
Replace the pump.
Yes
Repair the cables
and/or cable
terminals.
Yes
Is there any loose connection or
break on the socket terminals or
connections between the control
board and pump motor?
No
Assemble and restart
the machine
PICTURE E7-1: The socket on the level sensor
must be fitted
Is there an E7 error?
* Machine
discharges every
time it is turned
on.
* Programme does
start.
E7
Yes
Are the Level Sensor
socket (Picture E7-1)
and control board
KN9 socket fitted
(Picture E7-2) and are the
connections secure?
No
Repair the socket and cables
PICTURE E7-2: Socket to which the KN9 level
sensor cables are attached (Display board)
Yes
*Water level
sensor error
While machine is empty and
powered, measure the
frequency between pins 1 and
2 (Pink-Orange). It should be
around 625 Hertz (Picture E73). Is the measured value equal
to the required value?
No
Yes
KN9
Replace the level sensor
PICTURE E7-3: Water level sensor is being
checked.
Try to start a programme
again.
Programme takes too
long.
*Machine does not end
the programme
*Machine does not
take in water.
*Machine does not
function.
*It does not spin or
drain
*Machine drains
continuously.
PICTURE E8-1: AC voltage is being measured
on the valve connectors
Is there an E8 error?
Yes
Yes
Is the machine taking in
water?
E8
No
*No water
or
*Valve triac
open
or
*Pump triac
short circuit
error
Yes
Is the machine
continuously pumping
and discharging water
although it takes in
water?
PICTURE E8-2: KN10 connector on the board
(Power board)
Check taps and filters, check if
they are on. Is the tap turned off
or the filter clogged?
KN10
Yes
No
Turn the taps on
and try again.
Replace the main board
and try to run a
programme again except
spinning or pump.
INFORMATION: For KN10
Main wash pin 1-3 blue
Main wash pin 4-6 yellow
PICTURE E8-3: AC voltage is being measured
on the valve connectors (Power board)
Make sure that the valve
connectors (Picture E8-1) and
control board KN10 (Picture E8-2)
are fitted. Are the connectors
fitted?
No
Attach the
connectors and
try again.
KN10
Yes
Replace the valve.
Try again.
No
Is there 220 VAC between
the connectors of the valve
that has to run?
(Picture E8-1)
Yes
Is there 220 VAC
between KN10 connector
pins 1 and 3 on the control
board?
(Picture E8-3)
Yes
Replace the
control board and
try again.
Important Note:
In the softener step, prewash and main
wash valves are activated together.
Thus, water is sent to the softener
compartment.
Correct and check
the connections.
Try again
Yes
Is there any error on the
cable connections between
the control board and the
water inlet valves?
* Machine washes
poorly.
* Washing ends
before the
displayed washing
time is over.
* Programme is
not completed.
* Machine leaves
water inside.
Laundry comes
out with
detergent.
Is there an E9 error?
Door jammed
Yes
Replace the control board and
try again.
E9
*Door lock
triac open
circuit error
Is there an E10 error?
Yes
Replace the control board and
try again.
E10
*Door lock
triac short
circuit error
Program is not
completed.
*Machine
makes sudden
startups.
*Machine drum
does not rotate
at all.
Is there an E11 error?
Picture E11_1: Motor sockets
Yes
Motor
3-phase socket
E11
Are the motor sockets
(3-phase) fitted?
(Picture E11-1)
Yes
*Motor phase
open circuit
Are the cables between
the motor and the motor control
board secure?
(The 3-phase cables must be checked)
Picture E11_2: Motor
Yes
Replace the motor
(Picture E11-2)
Try to start a program again. Does
the error persist?
Picture E11_3: Motor control board
Yes
Replace the motor control board
(Picture E11-3)
Motor board
3-phase socket
Try to start a programme again.
Picture E13-1: Connector connection on the
display board (KN9)
*Machine
washes poorly.
, * It ends the
programme.
Is there an E13 error?
Yes
KN9
E13
Are the display board
communication KN10
socket (Picture E13-1),
Motor sockets (Picture E13-2) and Motor
driver board KN3 socket
(Picture E13-3) fitted and are
the connections secure?
Picture E13-2: 3-phase sockets on the motor
(ATLAS MOTOR)
*Communicatio
n cable open
circuit.
Yes
Motor
3-phase socket
Check if the motor coil and
thermal measurement
values are correct through the inlet points
on the motor using a measuring device.
Are the measurement
values correct? (See E13_Motor coil
Yes
measurement)
PICTURE-E13-3: ATLAS Motor driver board
sockets
KN3- COMMUNICATION KN5- MOTOR
THREE-PHASE KN6- MOTOR BOARD AC
INPUT
No
Replace the
motor
KN 3
Yes
Check the socket inlets on the
motor driver board and replace
the motor driver board
Does the error persist?
KN 5
Yes
KN 6
Also check the socket inlets on
the display and power boards
and replace.
Does the error persist?
No
Start a programme again to
check the motor movement.
No
Check the sockets and the
cablesand repair if there is
any loose contact.
Picture E17-1: Valves and drawer hose connection
* Machine failed
to spin.
* Time extended.
* Although I did
not select extra
rinse, machine
performed
another rinse
cycle.
E17
Is there an E17 error?
Yes
*Programme
finished without
spinning due to
foam.
PREWASH VALVE
Check if the main wash and prewash
valves are correctly connected to
the related compartment of the detergent
drawer. If prewash is selected, water fills in the
prewash compartment when the machine takes in first
water. If prewash is not selected, first water
is taken from the main wash
compartment. Is it so?
(Picture E17-1)
Yes
Explain the customer the following
antifoam measures.
Foam formation reasons and prevention methods
1) If you add detergent in the prewash compartment although you have not
selected prewash, detergent will be taken from this compartment while rinsing
the laundry and cause foam formation.
2) You should use detergents designed for automatic machines.
3)Laundry can remain with detergent as a result of using excessive detergent.
You should try to use only adequate amount of it.
4) Keep your detergent in a closed and dry place.
5) You should use less amount of detergent than ever for your lacy laundry.
6) You should not use too much softener.
No
MAIN WASH VALVE
Correct the water intake
hoses.
Is there an E18 error?
* Machine failed
to spin.
* Time extended.
Yes
E18
Explain the customer the
following methods for
preventing unbalanced load.
Reasons of ending the programme without spinning as a result of detecting
unbalanced load
*Programme
finished without
spinning due to
unbalanced
load.
1) When you use the machine with less laundry, laundry may pile up on one side
of the drum. There is the risk of damaging the washing machine when it is
operated at higher speeds with unbalanced load. Therefore, when the
unbalanced load in the machine exceeds the limit value, the machine will not
spin for safety reasons.
2) The possibility of piling up of laundry at one point in the drum will be higher
when the machine is operated with a single pullover, bathrobe or towel. Avoid
washing such laundry as one piece as much as you can.
Is there an E20 error?
*Machine door
won't open.
Yes
Replace the solenoid door lock
Does the error persist?
E20
Yes
Replace the main board
*Door solenoid triac
or relay short circuit
Start a programme again and
check.
Is there an E28 error?
* Machine does not
function.
*Machine does not
take in water.
Yes
Replace the solenoid door lock
Does the error persist?
E28
Yes
Replace the main board
*Door locked signal
(zero cross) cannot
be received
Start a programme again and
check.
Is there an E29 error?
* Programme
ended in a longer
time.
* Machine did not
heat well.
Yes
E29
Measure the supply voltage. Is the operating
voltage lower than 150 VAC or higher than 290
VAC?
*Operating voltage
out of limit
Yes
Brief the customer about operating voltage of
the product and making necessary changes on
the electrical installation to enable the
customer to use the product within the
specified operating voltage range.
Programme selection key does not select,
or
the selected programme is not the same as the running
programme,
or
Some programmes cannot be selected.
For example, machine takes in water although spin is
selected
Replace the control board
Picture 1: Valves socket connection
Machine takes in water from the wrong
detergent compartment
Are the valves connected to
KN18 - Prewash (Blue),
KN18 - Main wash (red)
(Picture-1)
terminals?
PREWASH VALVE
MAIN WASH VALVE
Fix the connections. Check with a
function test.
Picture 2: Valves drawer hose connection
Yes
Perform a function test on the machine
to check compartments of the detergent
box. (Picture-2)
Check if there is 220V AC on the
relevant valve during the test steps
PREWASH VALVE
DRAWER HOSE INLET
Yes
Is there 220VAC voltage on the relevant
valve during water intake from each
compartment?
No
Replace the control board
Replace the valve
MAIN WASH VALVE
DRAWER HOSE INLET
Is the machine continuously
blowing the fuse and is there not
an error code?
Make sure that water is not
coming upon the control board,
motor, heater, pump, door lock
or valves of the machine.
Yes
Remove the heater sockets to
check if there is short circuit on
the heater.
Replace the heater.
Yes
Is there short circuit on
the heater?
No
Fix the cabling.
Yes
Check the cabling of the
machine; is there any stripped,
broken, burnt or melted cable?
Run the
machine one more time;
can it operate for a
while without blowing
the fuse?
Yes
During the function test, check
which component blows the fuse.
Remove the connected socket
terminals of the part that blows
the fuse and perform a short
circuit check. Replace that part if
there is short circuit. If not,
recheck the cabling.
No
Is there any trace of
burning-blowing on the
control board?
Yes
No
Does the machine
continue blowing the
fuse?
Yes
Replace the control board
C7S Bluetooth setup
Add / Remove Products
Select a product
Which product do you want to
add?
There is no product in your
Homewhiz account or network.
Connect new product to the
network>
Select a product
Enter the product code of the
product.
Open the door of your washing machine. The
product code can be found on the label on the
inside of the door.
Start waiting
C7S Bluetooth setup
Bluetooth setup
1 Step
HomeWhiz setup
cancel
HomeWhiz setup
Connecting with Bluetooth
2 Step
Completed !
Last step: name your product.
Press the temperature and distance
control buttons at the same time.
Press and hold the temperature and
remote control keys on the product
for 3 seconds
Usage tip 1
If your product is connected, you can
follow it at any time.
Temperature button
To control the product, set the product to
the downloaded program and press the
remote control button.
Remote control
button
Name of the product
Remote control button
Usage tip 2
Go to the next step.
Add the white goods
HomeWhiz
It can be connected to the product with
only one mobile device at the same
time.
PICTURE-1 Power board and display board
PICTURE-2 Power board sockets
POWER BOARD
KN 10
KN 8
KN 1
KN 3
KN 6
DISPLAY
BOARD
PICTURE-3 Power board sockets
PICTURE-4 Power board sockets
KN 11
KN 10
KN 8
KN 1
KN 3
KN 6
KN 9
KN 7
POWER BOARD SOCKET CONNECTIONS
KN1- HEATER - MOTOR BOARD 220 VAC
KN3- DOOR LOCK
KN6- MAINS 220 VAC
KN7- POWER BOARD GROUNDING
KN8- DRAIN PUMP
KN9- COMPONENTS POWER BOARD HIGH
KN10- PREWASH - MAIN WASH VALVE
KN11- COMPONENTS POWER BOARD HIGH
PICTURE-5 Display board socket connections
KN 9
DISPLAY BOARD SOCKET CONNECTIONS
KN9- MOTOR COMMUNICATION – NTC – WATER LEVEL SENSOR
KN23- COMPONENTS DISPLAY BOARD LOW
KN24- COMPONENTS DISPLAY BOARD LOW
KN7- POWER BOARD GROUNDING
KN8- DRAIN PUMP
KN10- PREWASH - MAIN WASH VALVE
KN 24
KN 23
KN 7