5. FUNCTIONS
5-1 Display
Part
Initializing
General run
Defrost
(forecooling+
heating+
time-delay)
Fast refrigeration
Fast freeze
Forced Startup
Forced Defrost
Refrigeraing
Freeze
Refrigeraing
Freeze
Functions
Display the actual temparature. It will display the default temperature
when the refrigerating temperature falls into the setting range (+5,-3)
and when the freeze temperature falls into the setting range (+3,-3).
When the actual temperature is within the setting range (+5,-3), it will
display the default temperature. If the actual temperature exceeds the
setting vaule of +3, it will display the setting with flashes. if the actural
temperature is less than the setting value of -3, it will display the actual
temperature
When the actual temperature is within the setting range (+3,-3), it will
display the default temperature. If the actual temperature exceeds the
setting vaule of +3, it will display the setting with flashes. If the actual
temparature reaches the setting value of -4, it will display the actual
temperature -1. if the actural temperature is less than the setting value
of -5, it will display the actual temperature -2.
During the defrost forecooling, when the actual temperature is within
the setting range (+5,-3), lock the current display till the first stop due
to compactor defrosting;
During the defrost heating, lock the current display till the first stop due
to compactor defrosting;
During the defrost forecooling, when the actual temperature is within
the setting range (+3,-3), lock the current display till the first stop due
to compactor defrosting;
During the defrost heating, lock the current display till the first stop due
to compactor defrosting;
If the actual temperature is less than the setting of -3, it will display the
actual temperature;
Display FF (Forced Startup)
Display Fd (Forced Defrost)
5-2 Constant Temperature Control
A.Freeze Temperature Control
1) You may control the freeze temperature by setting the freeze temerature from -15 to -23
at 1 interval.
2) Whenever you press the temperature control key, the temperature will display in the following
sequence: -18 ,-19 ,-20 ,-21 ,-22 ,-23 ,-15 ,-16 ,-17 ,-18 .
3) The freeze temperature is initialized as -18 .
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B.Refrigerating Temperature Control
1) You may control the refrigerating temperature from 9 to 1 by pressing refrigerating temerature
key at 1 interval.
2) If pressing the temperature control button, the temperature will display in the following sequence:
5,4,3,2,1,9,8,7,6,5.
3) The refrigerating temperature is initialized as 5 .
Step
Display
Freeze temp.
Control
Power on 1 press 2 press 3 press 4 press 5 press 6 press 7 press 8 press 9 press 10 press
st nd rd th th th th th th th
5
5
4
4
3
3
2 1
2 1
9 6 5
9 6 5
8
8
7
7
C.Fast refrigeration
1) Press the Fast refrigeration key, the fast refrigeration light is on, leaving the gear air door open.
2) The state will display in the following cycle: fast refrigeration light on fast refrigeration light off
fast refrigeration light on. It will change with a press of the Fast refrigeration key.
Step Power on 1 press 2 press Comments
Display Fast refrigeration light off Fast refrigeration light on Fast refrigeration light off
st nd
3) If you select Refrigeration Off, Fast Refrigeration will end up abruptly with a new start of
Refrigeration Off .
4) If you select Fast refrigeration , the air door will be open until the end of fast refrigeration after
1.5 hours or the end by manual. The air door Open and Stop will be determined by the
refrigerating temperature.
D.Fast Freeze
1) Press the Fast Freeze key to activate the fast freeze light and run the compactor and fan motor.
2) The state will display in the following cycle: fast freeze light on fast freeze light off fast
freeze light on. It will change with the a press of the Fast freeze key.
Step Power on 1 press 2 press Comments
Display fast freeze light off fast freeze light on fast freeze light off
3) If you select Fast Freeze, the compactor and fan will keep running up to 2 hours (start within 10
mins after selection).
4) If the temperature meets the defrost condition during the operation of fast freeze, the fast freeze
defrost period will be prolonged to the end of fast freeze and the access to the defrost state.
st nd
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E.Standard Run
1) You may press the function key to select or give up this funciton.
2) If you select the Standard Run function, the freeze and refrigerating temperatures will be
controlled at -18 and 5 respectively.
F. Refrigeration Off
1) You may press the function key to select or give up this funciton.
2) If you select Refrigeration Off function , the gear air door will be closed and the refrigerating
temperature levels with the room temperature.
5-3 Defrost
A.General Function
1) Defrost consists of 3 sections: forecooling, heating, time-delay;
2) When the following conditions are met, the defrost period is set as 19 hours: the refrigerating
compartment door opening and closing opportunity is less than once; the refrigerating
temperature is under the setting of +6 and the freeze temperature is under the setting of +4 ;
No special functions are selected (Refrigeration Off, Fast refrigeration, Fast Freeze). The defrost
period become 6 hours under other conditions except the above.
3) When the appliance is initialized, the first defrost period is 4 hours.
4) The compactor and fan will stop during defrosting, the air door will be closed during heating, and
the air door will keep running during time-delay.
5) Prior to defrosting, the compactor will keep running for 50 mins for forecooling.
6) Heating is controlled by the evaporator's sensor. If the sensor breaks down or the evaporator
temperature exceeds -5 , heating fails to work and step into the next around.
7) The delayed time is 7 minutes.
B.Defrost During Fast Refrigeration
1) The defrost operation will be delayed during the fast refrigeration run until the end of the fast
freeze.
2) If the fast refrigeration function is cancelled by prior manual operation, the defrost function will
start up. The compactor running time during the fast freeze will be added to the total work time
3) If the Fast Freeze function is selected during the defrost operation, the fast freeze light will be on.
But the actual running will not begin until the end of the defrosting.
C.Heater ON/OFF During Defrosting
1) Defrost Heater ON Temperature
General Defrost Forced Defrost Comments
Lower than -5 Lower than -5 Remains same under all defrosting condition
2)Defrost Heater OFF Temperature
Difference 6 hours 19 hours 4 hours Comments
OFF
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5-4 Test Function
Test function is to check the product, PCB, process control and maintenance.
After the product function determined by selecting the test switch, you must re-electrify the
appliance to run the self-diagonisis function.
A.Forced Function
1) If you press the Refrigerating Temperature key and the Freeze Temperature key up to 5 minutes
at the same time, the compactor will start running with the display board highlighting FF .
2) If the Forced Function is selected, the compactor will start running without 5 minutes' time delay.
Defrost operation will stop if the appliance is at the state of defrosting.
3) If the forced function is selected, the compactor will keep running for 24 hours. But the
refrigerating temperature may be adjusted by pressing the Refrigerating Temperature key.
B.Forced Defrost
1) If you press the Refrigerating Temperature key and the Freeze Temperature key up to 5 minutes
simutaneously at forced startup state, the compactor will stop running and step into the forced
defrost state with the display board highlighting Fd .
2) If the evaporator sensor's temperature is higher than -5 under the forced defrost state, the
heater will fail to work and the compactor will resumes after the end of time-delay.
C. Test Quitting
1) If you press the Refrigerating Temperature key and the Freeze Temperature key up to 5 minutes
at the same time under forced defrost state, the forced defrost function will come to a sudden end.
The refrigerator will reset and Fd disappear.
5-5 Other Controlling Functions
A.Compactor Protective Function
1) Restart is not allowed within 5 minutes after the stop of the compactor.
2) For forced startup, the compactor may start working without 5 minutes' time-delay by pressing
the Forced Startup button.
3) When electrifying or switching on the power, this function will start working after 3 minutes'
defrost heating.
4) When opening the refrigerating door, the fan motor will stop running and the air door is closed.
5-6 Opening Alarm and Refrigerating Compartment Illuminating Control
A.Opening Alarm and Illuminator
1) Opening of the refrigerating door for 2 minutes will incur Buzzer (Ding).
2) The alarm will stop with light off after 2 minutes
3) If the door is closed, the alerm will stop at once.
5-7 Self-diagnosis
A. Self-diagnosis
1) The temperature sensor is considered malfunctional if its temperature go beyond -50 ~ +85 .
If the core chip input voltage exceeds 0.5V~4.5V, it will be deemed as short circuit or open circuit.
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Self-diagnosis Trouble Sheet
NO
1
Refrigerating sensor
2
Main evaporator sensor
Freeze sensor
3
4
External sensor
Magnetic switch
5
ITEM
DISPLAY
TROUBLE
Open circuit
short circuit
Open circuit
short circuit
Open circuit
short circuit
Open circuit
short circuit
Air door relay failure, or motor,
air door magnetic spring switch
or magnet trouble
COMMENTS
Test temp. lower than -50
Test temp. higher than +85
Test temp. lower than -50
Test temp. higher than +85
Test temp. lower than -50
Test temp. higher than +85
Test temp. lower than -50
Test temp. higher than +85
Magnetic spring switch ON/OFF
is unable to be detected after 1
minute's run
B.Initializing Self-diagnosis
1) The core chip will self-inspect the temperature sensor within 1 minute after power on.
2) Malfunctional sensors found by the self-diagnosis will be reflected on the display at 0.5S interval.
3) If bad sensors are detected, no press will be admitted. All electric loads will be set to the position
of OFF and the regular temperature control will be retained.
4) If the broken down sensors are repaired, the appliance will be reset to the original state.
C.Self-diagnosis During Normal Operation
1) If pressing the Fast Refrigeration key and the Function Selection key for 5 minutes simutaneously
during normal run, the appliance will select the self-diagnosis function with EC shown on the
display.
2) During the Self-diagnosis, key press does not work.
5-8 Buzzer
A.Key Press
1) If you press the key under normal work condition , each press will trigger a sound of Ding Dong
2) If you keep pressing the key, only Ding is heard.
3) Fault operation will bring about no sound.
B.Door Opening Alarm
1) Opening of the regrigerating door for 2 minutes will incur Didi alarm.
C.Forced Function
1) Simutaneous press of the Refrigerating Temperature key and the Freeze Temperature button for 5 minutes
will trigger Dudu sound at 0.5S interval.
D.Forced Defrost
1) Only simutaneous press of the Refrigerating Temperature key and the Freeze Temperature button for 5
minutes under forced defrost state will trigger Dudu sound at 0.5S interval.
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