Chapter 5 Control principal and related test functions
5-1 Refrigerator controls
(1) Refrigerator compartment control: When the refrigerator sensor temperature is no lower than the
start temperature, the refrigerator compartment will start working (the damper on and the fan
working); when it is no higher than the start temperature, the refrigerator compartment will stop (the
damper closed).
(2) Freezer compartment control: When the freezer sensor temperature is no lower than the start
temperature, the freezer compartment will start working and it will stop when the temperature is no
higher than the shutdown temperature.
(3) Power Cool control: The refrigerator compartment will start super cooling when the refrigerator
enters Power Cool mode and it will exit the Power Cool mode in approximately 180min.
(4) Power Freeze control: The refrigerator will exit Power Freeze when the Power Freeze mode
works for about 50h.
(5) SMART control: When the refrigerator enters SMART mode, the refrigerator compartment and
freezer compartment will operate respectively at the temperature of 5° C and -18° C.
(6) Holiday function: When it enters Holiday mode, the refrigerator compartment will work at the
temperature of 17° C while the freezer compartment is not affected.
(7) Door open alarm: The alarm will be activated when the refrigerator compartment door is open for
60s. The buzzer will beep 3 times at the interval of 0.5s and it will beep 3 times at the interval of 0.5s
every 30s if the switch remains turned on until the switch is turned off or the switch-on time exceeds
10min.
(8) Power off memory: The refrigerator has power off memory and it will preserve the specific state
before power is off.
Power off memory : defrost state, set fridge and freezer storage temperatures, Power Freeze,
Power Cool, SMART, refrigerator compartment shut;
Power off memory does not include: Lock state, defrosting time, exhibition room
(9) Ceiling lamp control: The lamp illuminates when the refrigerator compartment door is opened
and goes out when the door is closed. It will automatically go out when the door is open for more
than 7min.
(10) Damper and fan control: When the freezer compartment requires refrigeration, the freezer fan
and compressor will operate simultaneously. When the refrigerator compartment requires
refrigeration, the fan and damper will start. When the refrigerator compartment alone requires
refrigeration, the freezer fan will work and the damper opened.
(11) State of initial powering on: When the refrigerator is turned on for the first time, the refrigerator
compartment temperature is set at 5° C and that of the freezer compartment at -18° C.
(12) Display panel control: With the refrigerator compartment door closed, the display panel will go
out when no key is pressed within 30s.It will illuminate when any key is pressed or the door is
opened. When the door is open for over 30s, the LED will go out.
(3) Compressor protection: The compressor will not start within 7min each time after it stops and the
compressor can only be properly controlled when the 7min delay ends. If the freezer sensor