Hisense BCD-440WPZ/HC1(H) User manual

Refrigerator
Service Manual
Model:BCD-440WPZ/HC1(H)

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1Contents
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1.Warnings and precautions for safety
2.Appearance and structure
2.1 View of the appliance
2.4 Compressor room structure
3.Basic parameters
4.Operation and functions
5.Troubleshooting
6.2 Mainboard and display panel
6.3 Compressor
5.1 Common problem and checking
5.2 Faulty start
5.3 Refrigeration failure
5.4 Thick frost in freezer compartment
5.5 Dew in refrigerator compartment
6.Circuit and checking
6.1 Circuit diagram
6.4 Fan motor
7.Cooling system repairing
7.2 Summary of repair
7.3 Regulation of repair
7.4 Practical work of repair
7.5 Brazing reference drawing
2.3 Evaporator structure
4.1 Display controls
4.3 Defrost mode
4.4 Compulsory defrost mode
6.6 Light
6.8 Temperature fuse
4.5 Error code
5.6 Low temperature of vegetable vase
5.7 Breaking of light
5.8 Noise
6.9 Defrost heater
7.1 Refrigeration system
2.2 Wind channel structure
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6.10 electromagnetic valve
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4.2 Ice maker...............
6.11 Ice maker........................

21.Warning and precautions for safety
Please observe the following safety precautions in order to use safely
and correctly the refrigerator and to prevent accident and danger
during repair.
1. Be care of an electric shock. Disconnect power cord from wall outlet
and wait for more than three minutes before replacing PCB parts.Shut
off the power whenever replacing and repairing electric components.
2. When connecting power cord, please wait for more than five
minutes after power cord was disconnected from the wall outlet.
3. Please check if the power plug is pressed down by the refrigerator
against the wall.If the power plug was damaged, it may cause fire or
electric shock.
4. If the wall outlet is over loaded, it may cause fire.Please use its own
individual electrical outlet for the refrigerator.
5. Please make sure the outlet is properly earthed, particularly in wet
or damp area.
6. Use standard electrical components when replacing them.
7. Make sure the hook is correctly engaged.Remove dust and foreign
materials from the housing and connecting parts.
8. Do not fray, damage, machine, heavily bend, pull out or twist the
power cord.
9. Please check the evidence of moisture intrusion in the electrical
components.Replace the parts or mask it with insulation tapes if
moisture intrusion was confirmed.
10. Do not touch the icemaker with hands or tools to confirm the
operation of geared motor.
11. Do not let the customers repair, disassemble and reconstruct the
refrigerator for themselves.It may cause accident, electric shock, or
fire.
12. Do not store flammable materials such as ether, benzene, alcohol,
chemicals, gas, or medicine in the refrigerator.
13. Do not put flower vase, cup, cosmetics, chemicals, etc., or
container with full of water on the top of the refrigerator.
14. Do not put glass bottles with full of water into the freezer.The
contents shall freeze and break the glass bottles.
15. When you scrap the refrigerator, please disconnect the door
gasket first and scrap it
1 Warning and precautions for safety

32.Appearance and structure
2 Appearance and structure
2.1 View of the appliance

2.2 Wind channel structure
42.Appearance and structure

2.3 Evaporator structure
52.Appearance and structure
Sensor
Evaporator
Fuse
Heater
Accumulator
Capillary

6
2.4 Compressor room structure
2.Appearance and structure
Dry filter
Electric box
Compressor
Power cord
Evaporation dish
1 2 3456
1
2
3
4
5
6Motorized value

73.Basic parameters
Content Unit Value
Voltage / frequency V/Hz
Rated current A
Rated input power W 170
Defrost power W
230
Net capacity L 431
Net capacity fridge compartmen
(Fridge/Chill) L 71
Net capacity free zer compartme nt L 289
Energy efficiency class
Climate class (SN=10~32°C,
N=16~32°C, ST=16~38°C, T=16~43°C) SN、N、ST
Refigerator room temperature °C
Freezer room temperature °C -24~-18
Freezer compartment star rating 4 Star
Energy consumption / 24 hou rs kWh/24h
Freezing capacity / 24 hours kg/24 h
Max noise level dB(A) =43
Kind of coolant / Charge
(R134a/R600a) / grammes R / g
3 Basic parameters
110-115/60
2.8
DOE
1~7
1.590
/
R600a/65g
224

84.Operation and functions
4.1 Display controls
4 Operation and functions
Use your appliance according to the
following control regulations , your
appliance has the corresponding functions
and modes as the control panels showed
in the pictures below.
When the appliance is powered on for the
first time, the backlighting of the icons on
the display panel will start working. If no
buttons have been touched or the doors
are closed, the backlighting will turn off
after 60 seconds.
The temperature can be changed
between
℃ and ° F by pressing "Fridge"
button for 3 seconds.
CAUTION
When you set a temperature, you set an
average temperature for the whole
refrigerator cabinet. Temperatures inside
each compartment may vary from the
temperatures displayed on the panel,
depending on how much food you store
and where you place it. High or low room
temperature may also affect the actual
temperature inside the appliance.
Ice Control
This button controls the ice maker.
You can touch the "Ice On/Off"
button to control the ice maker. When the
"Ice On/Off" function light is on, the ice
maker is working. If you want to lock the
ice maker, please touch the "Ice On/Off"
button again until the button light is off.
Fridge Temperature Control
Press the "Fridge" button to turn on the
refrigerator temperature control, then
press and hold the Fridge button to select
a temperature setting. If you have set the
temperature type to Fahrenheit, the
temperature settings cycle from 45°F to
34°F in one degree increments.
If you have set the temperature type to
Celsius, the temperature settings cycle
from 1°C to 7°C in one degree increments.
Soft Freeze
Press "Soft Freeze" button to set the soft
freeze compartment temperature between
23°F and 0°F to suit your desired
temperature, and the compartment
temperature indicator will display
corresponding value according to the
following sequence.
Super Cool
Use the
“ Super Cool ” feature
to cool food faster. Good for
cooling food when you add a lot of food.

94.Operation and functions
4.1 Display controls
The “ Super Cool ” icon “ ” will be
illuminated and the fridge temperature
setting will display 34 ℉ .
“Super Cool” automatically switches off
after 6 hours. The refrigerator temperature
setting will revert back to the previous
setting.
When the “Super Cool” function is on, you
can touch the button again to switch it off.
The fridge will not retain the “Super Cool”
function when powered off.
Freezer Temperature Control
Press the Freezer button to turn on the
freezer temperature control, then press
and hold the Freezer button to select a
temperature setting. If you have set the
temperature type to Fahrenheit, the
temperature settings cycle from 5°F to
-13°F in one degree increments.
If you have set the temperature type to
Celsius, the temperature settings cycle
from -14°C and -24°C in one degree
increments.
Super Freeze
Use the “ Super Freeze ”
feature to freeze food faster.
Good for cooling food when you add a lot
of food. The “ Super Freeze ” icon “ ”
will be illuminated and the freezer
temperature setting will display -13 ℉ .
Super Freeze can quickly lower the
temperature and freeze your food faster
than usual. This can retain more of the
vitamins and nutrients in fresh food and
keep your food longer.
The super freeze mode allows you to
freeze items inside with maximum speed.
We recommend that you let the appliance
operate for 24 hours first. “Super Freeze”
automatically switches off after 52 hours.
The freezer temperature setting will revert
back to the previous setting.
When the “Super Freeze” function is on,
you can touch the button again to switch it
off. The freezer will not retain the “Super
Freeze” function when powered off. If
power cutoff happens while super freeze
is activated, the super freeze will not be
reactivated after power resupplied.
Energy Saving
You can touch this button to turn
Energy Saving mode on and off.
When you turn Energy Saving on, the
Energy Saving icon “ ” lights up.
The temperature of the fridge is
automatically switched to 43 ℉ and the
freezer to 1 ℉ .If Energy Saving is off, the
icon “ ” will go off and the temperature
setting will revert back to the previous
setting.
Note:
The control panel will light up when the
fridge door is open, or you touch any
button.
The light will go off without touching any
buttons or the doors have been closed
over one minute.
When the refrigerator is powered on, all
the icons of the control panel will light up
for 3 seconds, and a buzzer sounds. And
the temperature setting reverts back to the
previous setting.
Alarm
When fridge or freezer door has been
opened for over 2 minutes, door alarm will
sound. In case of door alarm, buzzer will
sound 3 times every 1 minute and will stop
alarming automatically after 8 minutes.
To save energy, please avoid keeping the

10 4.Operation and functions
4.1 Display controls
door open for a long time when using the
appliance. The door alarm can also be
cleared by closing the door.

4.2 Ice Maker
11 4.Operation and functions
2. Disassemble two fixed screws with a
cross screwdriver (+).
3. Pull out the ice maker part.
4. Unplug two terminals, then take out the
ice maker part.
2. Disassemble two fixed screws with a
3. Pull out the ice maker part.
4. Unplug two terminals, then take out the
5
. Remove the water pipe connector
part
1. Remove the ice maker part.
2. Unplug the terminal.
. Remove the water pipe connector
1. Remove the ice maker part.
4.2.1 Remove ice maker
1. Open the freezer door, take the ice
storage box and ice maker cover out.

12 4.Operation and functions
5. Pull the b
lue water tube out in the
direction of arrow.
. Disassemble the fixed screw with a
cross screwdriver (+).
7. Pull the water pipe connector part out
with pliers.
lue water tube out in the
. Disassemble the fixed screw with a
7. Pull the water pipe connector part out
3. Remove wire line from two buckles in
the direction of arrow one by one.
4. Disassemble the fixed screw with a
cross screwdriver (+), then pull the ice
maker inlet cover down.
3. Remove wire line from two buckles in
the direction of arrow one by one.
4. Disassemble the fixed screw with a
cross screwdriver (+), then pull the ice
maker inlet cover down.

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4.3 Defrost mode
4.Operation and functions
4.3.1 Start condition
When compressor accumulated running time reach the setting point
(depends on the environment temperature) it will enter defrost mode
automatically.
,
4.3.2 Defrost flow
Compressor stops
Evaporator fan stops
Damper stops
Defrost heater works
Evaporator temperature reach the
setting point,exit defrost mode
Defrost heater stops
Compressor starts
several minutes delay
Evaporator fan starts
several minutes delay
Damper starts
Start

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4.4 Compulsory Defrost mode
4.Operation and functions
4.4.1 Start condition
When buttons are unlocked,touch and hold fridge button and fresh choice
button at the same time for 5 seconds,it will enter special function
selecting mode after a buzzing sound.There will be a signal blinks at
freezer display area,touch the unlock button,when only the longest
square blinks,stop touching the button.It will enter compulsory defrost
mode after 10 seconds.
Compressor stops
Evaporator fan stops
Damper stops
Defrost heater works
90 seconds later,
evaporator temperature
reach the setting point
exit defrost mode
until
Defrost heater stops
Compressor starts
several minutes delay
Evaporator fan starts
several minutes delay
Damper starts
Start
4.4.2 Compulsory defrost flow

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4.5 Error display
4.Operation and functions
4.5.1 Error code
C ode D isp lay ar ea Pr oble m
Ec Fridge tempe rature dis play area
Comm unication sending
malfunctions
F2 Fridge tempe rature dis play ar ea
Refrigerator fan mo tor
malfunctions
E1 Fridge tempe rature dis play ar ea
Refrigerator sensor
malfunctions
E2 Fridge tempe rature dis play ar ea
Refrigerator defrost sensor
malfunctions
E0 Fridge tempe rature dis play ar ea
Environmen t sens or
malfunctions
Er Freezer tempa ratu re display area
C om munica tio n receiving
malfunctions
F1 Freezer tempa ratu re display area Freezer fan motor m alfunctions
E3 Freezer tempa ratu re display area Freezer s ensor malfunctions
E4 Freezer tempa ratu re display area
Freez er defrost sensor
malfunctions
E5
M y Fresh C hoice tem paratu re
dis play are a
Two-star compa rtm ent s ensor
malfunctions

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4.5 Error display
4.Operation and functions
4.5.2 Checking method
Start
Change the mainboard
Is the sensor connecting
wiring open circuit
or short circuit?
Repair the wiring
Is the sensor OK? Change the sensor
Is the sensor connector
plug well?
Plug the terminal well
4.5.2.1 Refrigeartor&freezer&evaporator sensor error

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4.5 Error display
4.Operation and functions
4.5.2 Checking method
4.5.2.1 Refrigeartor&freezer&evaporator sensor error
Note:
1.Refrigerator sensor corresponding pin No.2 and No.6 on CN11
connector of mainboard.
2.Freezer sensor corresponding pin No.2 and No.7 on CN11
connector of mainboard.
3.Environment sensor corresponding pin No.2 and No.5 on CN11
connector of mainboard.
4.corresponding pin No.1 and No.9 on CN11
connector of mainboard.
5. Refrigeratorsensor corresponding pin No.1 and
No.10 on CN11 connector of mainboard.
6.corresponding pin No.2 and No.8 on
CN11 connector of mainboard.
Two-star compartment sensor
defrost
Freezer defrost sensor

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4.5 Error display
4.Operation and functions
4.5.2 Checking method
Start
Change the mainboard
Is the connecting wiring
between display panel and
mainboard broken?
Repair the wiring
Is the display panel OK? Change the display
panel
4.5.2.3 Communication error

Note:
Communication sensor corresponding pin
connector of mainboard.
No.1~4 on CN8
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4.5 Error display
4.Operation and functions
4.5.2 Checking method
4.5.2.3 Communication error