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21

The ECO-NAVI control can be turned off.
(The memory of the learning data continues.)
For details, refer to “Service Mode”
HOW TO SET (Disable)

1. Set in SERVICE MODE.

(Press [FRESH FREEZING] button for 5 seconds.) 

2. Press [FRESH FREEZING] button for 1 second. 
3. Press the buttons as follows.

1. Set in SERVICE MODE.

(Press [FRESH FREEZING] button for 5 seconds.) 

2. Press [FRESH FREEZING] button for 1 second. 
3. Press the buttons as follows.

Storage sensor on the Control panel detects the volume of stor-
age at the time of PC Door opening and closing.
Then, it is automatically switched between Normal mode and
Powerful mode depending on the volume of storage.

1.  Normal mode

• Cooling inside air pass through AG filter to remove bac-

teria from the air by the effect of Silver ion on the surface
of filter.

2. Powerful mode

• AG filter is exposed to LED, and OH radical is produced

in a chemical reaction. OH radical and Silver ion on the
AG filter remove bacteria from cooling air.

3. Switching control

• When PC door is opened and closed, if Storage sensor

detects an increase in the volume of storage or a high
volume of storage in PC, it is changed to Powerful mode.

• Powerful mode has continued for 24 hours from the

beginning.

4. Ability of sterile filtration

(the time required to 99% sterile filtration)

•  Normal mode : Approx. 24 hours
•  Powerful mode : Approx. 16 hours

The cycle of the defrosting is decided according to the state of
the defrosting and the ambient temperature.
Termination is detected by Defrost sensor, but maximum
defrosting time is 60 minutes (Defrosting forcibly stops).

• After 3 minutes, Compressor restarts.
• After 8 minutes, Fan motor (FC) starts.

 It depends on Ambient temperature (AT). 
Defrost sensor

•  +9 °C OFF ..... AT 29 °C or above
•  +10 °C OFF ..... AT 14 - 28 °C
•  +11 °C OFF  ..... AT 13 °C or below

• When the temperature of Defrost sensor doesn't reach a

defined value within 60 minutes, the defrosting is forcibly
stopped by the microcomputer.

• Thermal fuse (AT 73 °C, it becomes blown.)

For details, refer to “Test Mode”
HOW TO SET

1. Set in SERVICE MODE.

(Press [FRESH FREEZING] button for 5 seconds.) 

2. Press the buttons as follows.

The cycle of the defrosting

Sensor

4 or 13 hours

Power on state

FCC

13 hours

Normal operating

ATC

4 - 8 hours

Powerful operating

13 - 24 hours

ECO-NAVI operating

22

When to pour water in the tank and set, ice cubes are stored in the ice server by Automatic ice-maker. Ice tray is washable.

23

Detection of the Ice tray is carried out mechanically using the
Ice check lever.
CAUTION

• When removing the Ice tray, the refrigerator always need to

set to {AUTO ICE OFF}.

• If the Ice tray is removed during ice release operation, the

Ice tray may be broken.

When you need to make ice cubes quickly, activate the {QUICK 
ICE MAKING} function.

• {QUICK ICE MAKING} makes ice cubes in a minimum time 

of approximately 80 minutes*1 per Ice-making operation by 
the controls such as forced operation of the Compressor, 
and it will automatically finished in approximately 6 hours.
(After approximately 6 hours, it will return to normal Auto ice-
making.)
*1. AT 20°C, without door opening.

Press [QUICK ICE MAKING] button

(beep)turn on the

lamp.

• When the {QUICK ICE MAKING} flashes, it is in a state of 

defrosting.

• After defrosting is completed, it will start automatically 

{QUICK ICE MAKING}.

• If {QUICK ICE MAKING} selects while {FRESH FREEZING} 

is performed, {FRESH FREEZING} is canceled.

Press [QUICK ICE MAKING] button

(beep)turn off the

lamp.

When you do not want to make ice cubes or before cleaning the
Ice Tray, it can be stopped the Auto ice-making.
HOW TO SET (Disable)

Press [AUTO ICE OFF] button for 3 seconds
(beep)turn on the lamp (beep)(beep...)turn on the
lamp (beep).

• Button operations cannot be performed while the beep is 

sounding and the lamp is flashing.

• While setting in AUTO ICE OFF control, if it comes to ice

release timing, Ice-making operation is stopped right before
ice release.
(When AUTO ICE OFF control is canceled, it starts ice
release soon.)

Press [AUTO ICE OFF] button for 3 seconds
(beep)turn off the lamp.

The following tests can be confirmed operations of ICE MAKER
ASSY and PUMP MOTOR ASSY. 

• ICE-MAKING TEST-1; For service engineer

It is possible to confirm by sight the operation of the Ice-
maker unit with IC door opened. 

• ICE-MAKING TEST-2; For customer and service engineer

After starting test, operation is stopped temporarily when the
door is opened, then it will restart when the door is closed.

(For details, refer to “Test Mode”)

The power control of the Inject tube heater is as follows.

• Compressor: ON.....100%
• Compressor: OFF.....100%
• When any of the following conditions are met, 

Inject tube heater : OFF.....0%

- FC temperature: 7.5°C or above
- Ice release motor is working.
- Water supply motor is working.

According to changing compartment temperature, the motor
runs at the different speed. In normal, the motor runs at the
lower speed. (Energy saving & lower noise.)
When powerful cooling is required, motor runs at rapid speed.

For details, refer to “Service Mode”.

• Vibration inhibition mode
• Sound (noise) inhibition mode

*1 When the following all of conditions are met, Compressor
rotational speed is changed to R6.

• AT 34°C or above
•  {FRESH FREEZING} and {QUICK ICE MAKING} are operating
• Compartment temperature rises largely.

To restart the Compressor smoothly after Compressor stops
and after defrosting, it does not actuate the Compressor for cer-
tain period.

At once unplug, wait for 7 minutes, and then plug in.

CONDITION

ROTATIONAL SPEED (Setting level)

Power on state

R3, R4, R5, R6

FRESH FREEZING

QUICK ICE MAKING

R3, R4, R5, R6

Normal operation

R1, R2, R3, R4, R5, R6

Setting 

level

Vibration 

inhibition mode

Normal

Sound 

inhibition mode

R1

Same as 

on the right.

C30 (1,800)

Same as 

on the left.

R2

C30 (1,800)

R3

C42 (2,520)

R4

C52 (3,120)

R5

C62 (3,720)

R6

C71 (4,260)

-----*1

Waiting time for restarting the Compressor

3 minutes

After defrosting

10 minutes

After Compressor stops

24

The Fan motor (CT) is controlled for cooling the Compressor.

• Rotational speed of Fan motor changes on 4 degrees

according to rotational speed of the Compressor.

• If malfunction signal is detected for a second when Fan

motor turns on, the Fan motor has turned off for 2 minutes
and then it will turn on again.

• When malfunction signal is detected 10 times in a row, {H28}

is displayed in the Notice indicator (Fan motor (CT) is abnor-
mal).
When setting in SERVICE MODE during malfunction signal,
the voltage of Fan motor is turning on and off every 3 sec-
onds repeatedly.

• Even after the {H28} is displayed, it will return to normal con-

trol when the malfunction signal is not detected for 5 sec-
onds or above.

Fan motor (FC) is controlled to adjust the optimum temperature
and save energy.

• Rotational speed changes on 6 degrees according to rota-

tional speed of the Compressor.

• If malfunction signal is detected for 2 seconds when Fan

motor turns on, the Fan motor has turned off for 2 minutes
and then it will turn on again.

• When malfunction signal is detected 60 times in a row, {H29}

is displayed in the Notice indicator (Fan motor (FC) is abnor-
mal).
When setting in SERVICE MODE during malfunction signal,
the voltage of Fan motor is turning on and off every 3 sec-
onds repeatedly.

• Even after the {H29} is displayed, it will return to normal con-

trol when the malfunction signal is not detected for 5 sec-
onds or above.

• If one of the following conditions are met, {H38} is recorded

in the memory.

- After waiting for restarting compressor, it detects that the

rotational speed command signal is opened.

- There is a 30% or more disparity between command

speed and detection speed.

AT

Compressor

Fan motor

26°C or below

ON

OFF

OFF

27°C or above

ON

ON (OFF*1,*2)

OFF

OFF

During SERVICE MODE

ON*3

*1. When the following all of conditions are met, Fan motor turns 
off.

• AT19°C - 33°C
• Rotational speed of Compressor :R2, R3, or R4
• PC Damper : closed

*2. When the following all of conditions are met, Fan motor turns 
off.

• AT19°C - 33°C
• Rotational speed of Compressor :R2, R3, or R4
• FCC sensor : -10°C or below
• PC Damper : opened

*3. The Fan motor stops while defrosting.

AT

Compressor

Fan motor

22°C or below

ON

ON *1

OFF

OFF

23°C or above

ON

ON *1

OFF

OFF

Power supply ON (2 min)

ON *2

While defrosting

OFF

Ice release motor ON

OFF

Water pump ON

OFF

During SERVICE MODE

ON *2 *3

When any door is opened

OFF *4

During {FRESH FREEZING} and 

{QUICK ICE MAKING} 

ON 

*1. The Fan motor is operated for 5 minutes after the Compressor
runs.
*2. When the Ice release motor or the pump motor operates, the Fan
motor is stopped.
*3. The Fan motor is stopped while defrosting.
*4. It is unrelated to the SERVICE MODE.