ChiQ FCD418NE3 User manual

BCD-430WP Service Manual
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Refrigerator Service Manual
Applicable to
Model: FCD418NE3(BCD-430WP) (C1647)

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Contents
I. Product features............................................................................................................................ 3
II. Outer appearance and structure ................................................................................................. 4
III. Main technical parameters ....................................................................... 错误！未定义书签。
IV. Operating instructions.................................................................................................................. 5
V. Display rules................................................................................................................................... 8
VI. Cooling system .............................................................................................................................. 9
VII. Control system............................................................................................................................... 9
VIII. Maintenance guide .....................................................................................................................11
IX. Explosive view and spare parts list .......................................................... 错误！未定义书签。

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I. Product features
This is an inverter fridge-freezer adopting the cross-door design. Its upper part is the fridge
compartment for fresh food storage, such as fruits, vegetables, eggs, milk, cooked foods, etc.;
and its lower part is the freezer compartment where fish, meat, etc. can be frozen for the
long-term storage.
Real-time monitoring; The states of the fridge compartment, freezer compartment and
variable temperature chamber are monitored in the real-time manner to ensure they are
operating under the optimal conditions with the best humidity maintained, so that the food
preservation time can be extended.
Stylish appearance;Adopting the optimized man-machine engineering design, this hidden
handle refrigeratorhas an elegant and novel appearance.
Multi-airflow; The stereo multiple air outlets are adopted by the refrigerator, which
guarantees uniformity of the storage temperature.
Smart defrosting; Featuring the smart defrosting design, the refrigerator performs the
defrost operationaccording to the actual use frequency and frost formation speed, thus
more energy-saving.Before the defrost operation, the refrigerator internal temperatures are
automatically judged and pre-refrigeration is made, so that the internal temperatures before
and after defrosting do not change significantly, which is conducive to the food preservation.
More user-friendly designs; Such functions as wide working voltage range, automatic
temperature control, power-off memory, power-on delay, automatic alarm, fast freezing,
and fridge power-off, etc. are available.

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II. Outer appearance and structure
Note: Due to technological innovation, the product descriptions in this manual may not be completely consistent
with your refrigerator. Details are in accordance with the real product.

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III. Operating instructions
1. Keys
Temp.Zone
This is the key to select the temperature
zone, and the temperature zone changes
each time the key is pressed. When the
fridge zone is selected (with icons of both
the left and the right fridge doors flickering
at the same time), temperature digits starts
flickering. After temperature setting, press
the OK key to validate it. When the freezer
zone is selected (with icons of both the left
and the right freezer doors flickering at the
same time), set the temperature by
reference to the fridge temperature setup.
1) The temperature zone selection changes
through the following cycle:
Fridge → Freezer →Fridge;
Note: When the function program is enabled, temperature setting becomes invalid.
2) Every time when settings are finished (with no flickering any more), if the Temp.
Zonekey is pressed again, the Fridge icon starts flickering first.
3) Fridge OFF: When the fridge temperature is set, the temperature setting progresses
through the following cycle.
2℃→3℃→4℃→5℃→6℃→7℃→8℃→OF→2℃
(‘OF’ represents the OFF state, and when the OF setting takes effect, the fridge will be
shut off, with no refrigeration request.)
Temp. (temperature setting)
1）Under the temperature setting state, the temperature rises by 1℃( in case of integer
bit change )with each key response.
2）Adjustable temperature range for each compartment:
Fridge compartment : 2℃～8℃;
Freezer compartment: -16℃～ -24℃;
OK/Lock
1）Under the state of function selection or temperature setting, the selected function or
the set temperature value takes effect when this key is pressed, with the corresponding

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flickering stopped immediately.
2）Under the function selection or the temperature setting state, if this key is not pressed,
flickering will stop in 5 seconds, with the selected function or the set temperature value
invalid.
3）Under the state that the display is unlocked, if the Ok/Lock key is pressed for over 3s, all
keys will be locked. And under the state that keys are locked, holding this keydown for 3
seconds will unlock the keys.
Function
1）This is the key to select functions, and the function selected changes with each key
response.
2）Function selection changes through the following cycle:
LECO→ Fast Freeze→ Vacation→Smart→LECO;
3）The selected function takes effect after the ‘OK’ key is pressed. When a function has not
been set, press this key to select the function, and then press the OK key, the selected
function can be enabled; and if a function has been set, press this key to select the
function, and then press the OK key, the function will exit.
2. Function program rules
Refer to the operation of Keys, and press the keys to perform the corresponding function of
Vacation, Fast Freeze, Smart, LECO, or Child Lock.
‘Fast freeze’function
1) To enter ‘Fast Freeze’
Refer to the key operation;
2) To exit ‘Fast Freeze’
a) The ‘Fast Freeze’ function will exit automatically when the refrigerator total run
time reaches 26 hours, counting from the moment the fast freeze function is
enabled, with the character ‘Fast Freeze’ and its icon extinguished.
b) When the ‘Smart’ function is enabled, the ‘Fast Freeze’ function exits, with its
icon extinguished.
c) Refer to the key operation.
3) When the ‘Fast Freeze’ function is enabled, the freezer temperature can’t be
modified.
4) When the ‘Fast Freeze’ function gets exited, the freezer temperature restores to its
original temperature that is set before the ‘Fast Freeze’ function is enabled
’Smart’ function
1) To enter ‘Smart’.
Refer to the Key operation;
2) To exit ‘Smart’ (the following refers to the OR relationship):
a) Refer to the key operation.

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b) When the ‘Fast Freeze’ or ‘Vacation’ function is enabled, the ‘Smart’ function
exits.
3) When the ‘Smart’ function is enabled, the fridge temperature is set at 04℃and the
freezer temperature at -18℃, which are subject to no change.
4) When the ‘Smart’ function gets exited, the temperature of each compartment
restores to its original temperature that is set before the ‘Smart’ function is enabled
‘Vacation’function
1) To enter ‘Vacation’.
Refer to the key operation;
2) To exit ‘Vacation’ (the follows refer to the OR relationship)
a) Refer to the key operation.
b) When the ‘Smart’ function is enabled, the ‘Vacation’ function gets exited, with
the icon of Vacation extinguished.
3) When the ‘Vacation’ function is enabled, the fridge temperature is set at 14℃, which
is subjected to no change.
4) When the ‘Vacation’ function is exited, the fridge temperature is restored to its
original value that is set before the ‘Vacation’ function is enabled.
‘LECO’ function
1) To enter LECO.
a) Refer to the key operation.
b) The LECO function gets enabled automatically when the freezer starts
defrosting.
c) The LECO function gets enabled automatically when the fridge door is opened.
2) To exit LECO.
a) The LECO function gets exited automatically 20 minutes after it is enabled, with
the icon of LECO extinguished.
b) Refer to the key operation.
‘Child Lock’ function
1) To enter Child Lock.
a) Refer to the Key operation;
b) When the display is unlocked, the Child Lock function will be enabled
automatically if no key operation within 3 minutes.
2) To exit Child Lock.
Refer to the Key operation.
3) When the Child Lock function is enabled, the refrigerator temperature and function
are subject to no change.

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IV. Display rules
Under normal operation, the temperature of the
compartment whose icon lights up is displayed at the
digit zone.
The display fullylights up when the refrigerator is
energized for the first time, which will restore to the
normal display in 2 seconds.
When the display lights up, it will be off if no key
operation within 3 minutes.
When the display screen is off, a key can be
awakened when it is pressed for the first time, and
the function of the key can be enabled if it is pressed
again.
In the case of failure or any door open action, the display lights up.
In the case of temperature setting, temperature of the current corresponding compartment
is displayed, with the ‘2-digit’ and ‘-’ icons flickering.
Over-temperature alarm
When energized, if the freezer sensor temperature is higher than -10℃, its corresponding
icon and temperature gets flickering. The temperature of the freezer when it is energized
can be displayed by pressing any key. And the normal display is restored 10s later or by
pressing any key again.
Special function program display contents
When the ‘Smart’ function is enabled, the character ‘Smart’ and its icon light up, with the
fridge temperature and the freezer temperature displayed as 4℃and -18℃; when the ‘Fast
Freeze’ function is enabled , the character ‘Fast Freeze’ and its icon light up, with the freezer
temperature displayed to be ‘-32’; when the ‘Vacation’ function is enabled, the character
‘Vacation’ and its icon light up, with the fridge temperature displayed to be ‘14’.

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V. Cooling system
Schematic diagram of the cooling system
VI. Control system
(Including the control system diagram, main control board circuit layout diagram, each
component control）
1. Schematic diagram of the control system
Components output:
capillary
tube
filter
condenser
anti-condens
ation tube
connecting
tube
refrigerant flow
direction
compressor set
freezer
evaporator
assembly

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Compressor（~220V / 50Hz,200W）
Anti-condensation heater（~230V / 50Hz, 8W）
LECO（12VDC,1W）
Buzzer
LEDdisplay
Fridge lamp（12V,MAX2.5W）
Freezer fan（12VDC,3W）
Freezer defrosting heater（~230V / 50Hz,200W）
2. Diagram of the control board-the board integrating the inverter control with the main
control
控
制
板
简
图

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3. Components control rules
1) Compressor
Make sure to wait for at least 5 minutes before you start it again after it is shut down.
2) Lamp
a) If any refrigerator door switch is detected to be on, the corresponding
compartment lamp gets switched on.
b) If any refrigerator door switch is detected to be off, the corresponding
compartment lamp gets switched off.
c) The lamp gets switched off after keeping illuminated for more than 10
minutes
3) Fridge air damper
When the fridge is cooling, the fridge air damper is opened; and when the fridge is
not cooling, the fridge air damper is closed.
4) Freezer fan motor
a) When the fridge and the freezer are cooling, the fan motor gets started.
b) When the fridge and the freezer are not cooling, the fan motor gets stopped.
c) When defrosting gets started, the fan motor runs according to the defrosting
rules.
d) When the fridge door or the freezer door is opened, running of the fan motor
gets suspended for 5 minutes.
5) Power cut memory
a) The temperature setting of each compartment can be memorized.
b) Such functional state as Smart, Fast Freeze, Fridge OFF, Vacation can be
memorized.
c) Parameter settings (the original value or the modified value) can be
memorized
6) LECO
a) LECO starts working after the LECO function is enabled.
b) LECO lasts for up to 20 minutes after each start.
c) LECO gets started immediately after it is manually enabled.
Automatic sterilization: When the freezer is defrosting, LECO gets started, and
keeps running for 20 minutes before exiting. When the LECO function gets
started automatically, it can be exited if disabled manually.
VII. Maintenance guide
1. Fault alarms
a) Over-temperature alarm: When the refrigerator system is first powered on, if the
freezer sensor temperature is detected to be higher than -10℃, the freezer zone
icon and the freezer temperature get flickering. When any key is touched, the
flickering gets stopped, with the said freezer temperature (above -10℃)displayed.
The normal display can be restored after 5s.

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b) Door open alarm: When any door is open for more than 3 minutes, the buzzer will
issue alarms continuously until the said door is closed. The alarm can be stopped
when any key is pressed, but it will be restored after 3 minutes if the door keeps
open.
7) Fault indicators
The general information and item information displayed under different failure
categories are as follows:
S/N
Failure Type
Item Information
1
Fridge sensor fault
The graphic of the fridge zone lights up, with E0
displayed.
2
Freezer sensor fault
The graphic of the freezer zone lights up, with
E0 displayed.
3
Freezer evaporator
sensor fault
he graphic of the freezer zone lights up, with E1
displayed.
4
Communication fault
EC is displayed.
5
Ambient temperature
sensor fault
EH is displayed.
6
7
8
1) If the fault messages E0 and E1 need to be displayed at the same time, E2 will
be displayed instead.
2) In case the number of sensor faults or compartment sensor faults is more
than two, the number will be displayed.
2. Fault troubleshooting
(How to detect the fault is presented here only, and for details about disassembly and
assembly, see the next chapter.)
Note：Makesure to cut off power supply before servicing.
(1) Fridge sensor fault (The fridge zone icon is flickering, with E0 displayed)
a. Cut off power supply, remove the electrical box cover, check whether the
temperature sensor terminal on the control board is well connected, insert it
again, and then power on the system to observe whether there is alarm or
not.
b. If the alarm continues, cut off power supply, remove the fridge air duct
assembly, check whether the temperature sensor terminal iswell connected,
insert it again, and power on the system to observe whether there is alarm or
not.
c. If the alarm continues, cut off power supply, connect a new fridge
temperature sensor to the terminal inside the cabinet, and power on the
system to observe whether there is alarm or not; If thealarm gets stopped,

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replace the temperature sensor of the fridge air duct with a new one, insert
the terminal well, and then restore the assembly.
d. If the alarm continues, cut oft power supply, change the control board, and
power on the system to observe there is alarm or not on the display panel.
(2) Freezer sensor fault (the freezer zone icon gets flickering, with EO displayed.)
a. Cut off power supply, remove the electrical box cover, check whether the
temperature sensor terminal on the control board is connected in sound
condition, insert it again, and then power on the system to observe whether
there is alarm or not.
b. If the alarm continues, cut off power supply, change the control board, and
then power on the system to observe whether there is alarm displayed on
the panel.
(3) Freezer evaporator fault (the freezer zone icon gets flickering, with E1 displayed.)
a. Cut off power supply, remove the electrical box cover, check whether the
temperature sensor terminal on the control board is connected in sound
condition, insert it again, and then power on the system to observe whether
there is alarm or not.
b. If the alarm continues, cut off power supply, remove the freezer air duct
assembly, check whether the temperature sensor terminal is connected well,
insert it again, and then power on the system to observe whether there is
alarm or not;
c. If the alarm continues, cut off power supply, insert a new temperature sensor
into the cabinet terminal, power on the system to observe whether the
display panel will continue to alarm; If there is no alarm, replace the
temperature sensor, and restore the assembly after connectingthe
temperature sensor terminal well.
(4) Communication fault

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a. Cut off power supply, remove the electrical box cover, check whether the
temperature sensor terminal on the control board is connected in sound
condition, insert it again, and then power on the system to observe whether
there is alarm or not.
b. If the alarm continues, cut off power supply, dismantle the display panel to
observe whether its terminal is connected in sound condition, insert the
terminal again, and then power on the system to check whether there is
alarm or not.
c. If the alarm continues, cut off power supply, replace the display panel, power
on the system after inserting its terminal well, and observe whether there is
alarm or not.
d. If the alarm continues, cut off power supply, change the main board, power
on the system after insert the terminal well, and check whether there is
alarm or not.
(5) Ambient temperature sensor failure
a. Cut off power supply, change the display panel, and power on the system
after inserting the terminal well, checking whether there is alarm or not.
(6) Door open alarm
When the door is open for more than 3 minutes, the display panel lights up, and
the buzzer issues the alarm sound at the frequency of 1Hz, indicating the door is
not closed tightly.
a. Open all the doors and close them again, checking whether the refrigerator
alarm is lifted or not.
b. If the alarm continues, cut off power supply, remove the electrical box cover,
check whether all terminals (door lamp switch and LED lamp terminal) are
connected well, insert the terminals again, close the doors, power on the
system, and then wait for 3 minutes, observing whether the display panel
lights off and there is the buzzer alarm.
c. If the alarm continues, for the fridge doorsequipped with the mechanical
lamp switch, open the doorof each compartment one by one, and close the
door lamp switch (located on the door upper hinge) manually, observing
whether the LED lamp turns off as the door lamp switch is closed; if yes, the
said door lamp switch is tested as qualified.Check the mechanical lamp
switches, and replace the unqualified one(s) once detected. (For the
operation, refer to how to dismantle the hinge cover.)
d. If the alarm continues, for the compartment equipped with the proximity
switch, open the compartment door and then close it, leaving some gaps, and
observe whether the corresponding compartment LED lamp (if any)turns

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off;Ifthe LED lamp turns on/off as the door is opened/closed, the proximity
switch and magnet under test are qualified; otherwise, the proximity or
magnet is unqualified. Replace the unqualified proximity switch or magnet,
close the door, and then observe whether the door open alarm is eliminated
or not. For the compartment with no LED lamp, replace the proximity switch
or magnet directly, and then close the door, observing whether the door
open alarm is eliminated.
e. If the alarm continues, cut off power supply, change the display panel, and
wait for 3 minutes after power-on, observing whether the alarm is eliminated
or not.
3. Other fault phenomena and maintenance methods
(1) The refrigeratordoes not work. (The whole machineis not working, with the
compressor not started, the display panel not illuminatedand the LED lamp OFF
when the door is opened.)
a. Check whether the refrigerator plug is properly plugged in; whether the
socket is electrified; and whether the socket voltage is normal.
b. Cut off power supply, remove the electrical box cover, observing whether the
terminals are properly connected, reinsert the terminals, and then power on
the system to observe whether the refrigerator can work normally.
c. Cut off power supply, change the main board, insert the terminal well, and
power on the system to observe whether the refrigerator can work normally.
(2) The compressorcannot start. (Other devices are working normally)
The compressor shutdown duringthe normal operation of the refrigerator does
not belong to this type of failure. Be sure to wait for at least 5 minutes before
starting the compressor again in the case of compressor shutdown. During the
following maintenance operations, if a power failure occurs, please wait for 5
minutes, and then power on the system to observe the compressor working, or
wait for 5 minutes after the system is powered on to observe whether the
compressor can work normally or not.
a. Cut off power supply, remove the electrical box cover, check whether the
terminals are properly connected, insert them again, and then power on the
system to observe whether the compressor can start normally.
b. If it still cannot start, cut off power supply, remove the compressor cover, check
whether the compressor protector is properly plugged in, reconnect it, and then
power on the system, observing whether the compressor can start normally or
not.
c. If it still cannot start, cut off power supply, replace the control board, and power
on the system after inserting well the terminal, observing whether the

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compressor can start normally or not.
d. If it still cannot start, it is judged as the compressor fault, then replace the
compressor.
(3) LED lamp does not light up when the door is opened.
a. If the door opener alarm occurs, check whether the door is closed and the
door lamp switch gets broken. (The LED lamp goes off when the door is open
for 10 minutes.)
b. In the case of no door open alarm, cut off power supply, remove the electrical
box cover, check whether the terminals are properly connected, insert them
again, and then power on the system to observe whether the LED lamp lights
up.
c. If the LED lamp is still off when the door is opened, cut off power supply,
change the LED lamp, and then power on the system, observing whether the
LED lamp goes on.
(4) LECO does not light up when the door is opened.
a. If the door open alarm occurs, cut off power supply, remove the electrical box
cover, check whether the terminals are properly connected, insert them again,
and then power on the system, observing whether the LECO lamp is lit up
when the door is opened.
b. Open the door and hold the door lamp switch by hand to check if the LED
lampturns on and off as the door lamp switch is connected and disconnected.
If not, refer to the Door Open Alarm section to repair the door lamp switch; If
yes, go on with the following operations.
c. Cut off power supply, replace the LECO lamp, power on the system when the
door is opened, observing whether the LECO lamp is lit up.
d. Cut off power supply, remove the electrical box cover, replace the main board,
power on the system when the door is opened, observing whether the LECO
lamp is lit up.
e. Cut off power supply, replace the display panel, and power on the system
when the door is opened, observing whether the LECO lamp lights up.
(5) The freezer is cooling while the fridge is not cooling.
a. Hold down the combination keys of ‘Function’ and‘OK’ for 5 seconds to enter
the maintenance program, turn on the compressor, fan and air damper by
force, turn off the defrosting heater, and then open the door, put your hand
at the air duct outlet, checking whether there is cooling air blown out from it.
b. If there is no obvious cooling air blown outfrom it, cut off power supply,
dismantle the fridge air duct assembly and the freezer air duct assembly, with
the terminals not removed, and then check

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Whether there is frost jamming, whether there are heavy frosts formed
on the evaporator and air duct outlet. If yes, refer to the following Item
(8).
Power on the system,and check whether the fan is normal by reference
to Item (7).
Power on the system, enter the maintenance program, wait 2 minutes
before opening the air damper, and check whether the air damper can
be opened normally; if it cannot be opened normally, replace the air
damper; (It takes some time for the air damper to reset every time when
the system is powered on.)
c. Cut off power supply, replace the display panel, power on the system when
the door is opened, close the door for cooling 10 minutes, and then open the
fridge door, hold down the door lamp switch, checking whether there is cool
air blown out of the fridge air outlet.
d. Cut off power supply, replace the main board, power on the system when the
door is opened, close the door for cooling 10 minutes, and then open the
fridge door, hold down the door lamp switch, checking whether there is cool
air blown out of the fridge air outlet.
(6) The refrigerator is not cooling.
Cut off power supply, remove the electrical box cover, check whether the
terminals on the main board are properly connected, insert them well again, and
then power on the system when the door is opened, wait for 10 minutes to
observe whether the refrigerator compressor can be started. If not, refer to Item
(2); and if yes, touch the left and right-side plates by hand to check whether they
are hot or not. If not hot, it is judged to be the refrigerant leakage fault, then
conduct vacuum pumping and charge the refrigerant again.
(7) The refrigerator air fan is not running.
a. Cut off power supply, remove the electrical box cover, check whether the
terminals on the main board are properly connected, insert them well again,
power on the system, hold down the combination keys of ‘Function’ and ‘OK’
for 5 minutes to enter the maintenance program; turn the fan on, open the
freezer door, and place your hand on the air duct to check if there is cool air
blown out.
Cut off power supply, remove the freezer air duct assembly, check whether
the terminals are properly connected, and whether there is such interference
as ice, wire harness or other foreign matter. If the terminals are loose or
detached, reconnect them well; if there is ice, perform the maintenance
program first to confirm whether the fan is in good condition or not. Ifyes,

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refer to the operation of Item (8); and if there is the wire harness or foreign
object interference, reshape the wire harness or remove the foreign object.
Then, power on the system, hold down the combination keys of ‘Function’
and ‘OK’ for 5 minutes to enter the maintenance program, turn on the fan,
checking whether the fan can be started normally. If the fan cannot start,
replace the freezing air duct assembly, and enter the maintenance program
again to check whether the fan can be started normally.
b. Replace the main board, power on the system to enter the maintenance
program, and turn on the fan, checkingwhether the fan can be turned on
normally.
(8) The refrigerator does not defrost.
a. Cut off power supply, remove the electrical box cover, and check whether the
terminals on the main board are properly connected.
b. After the power is cut off, remove the freezer air duct assembly, checking
whether the defrosting heater terminal is properly connected, whether the
terminal is sealed properly, and whether the terminal is in good condition.
c. After the power is cut off, remove the temperature fuse, and test the
temperature fuse with a multimeter to determine whether it is damaged or
not.
d. After the power is cut off, remove the defrosting heater, and measure the
resistance of the defrosting heater with a multimeter to determine whether
the defrosting heater is damaged.
e. After the power is cut off, replace the main board.
f. After the power is cut off, replace the display panel.
How to check the heater.
1) Dismantle the freezer air duct assembly by referring to the disassembly
method of "freezer air duct assembly", unplug the heater terminal, and set
the multimeter as illustrated below to test the heater resistance:

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Test results should be between 250 ~ 280 Ω, beyond which the heater should be replaced.
How to check the fuse.
1) Dismantle the freezer air duct assembly by referring to the disassembly method
of "freezer air duct assembly", unplug the fuse terminal, set the multimeter as
illustrated below, and apply the electroprobe to the position as the picture
illustrates, so as to test whether the fuse is blown out.

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If the multimeter buzzes and displays as below, it is judged as normal andneeds not to be
replaced; and if the multimeter maintains unchanged, the fuse is judged to be blown out and
needs to be replaced.
4. Special programs
Maintenance program (by holding down the combination keys of ‘Function’ and
‘OK’)
(1) When you press the "Temp. Zone" key, the parameter items and adjustable
operating parameter values as listed in the following table will be displayed
from left to right and from top to bottom.