Mitsubishi Electric MR-B46Z-W-C User manual

CONTENTS
1. SPECIFICATIONS••••••••••••••••••••••••••••••••••••••••••••••••••••••••••2
2. WIRING DIAGRAM ••••••••••••••••••••••••••••••••••••••••••••••••••••••••4
3. OUTLINES AND DIMENSIONS •••••••••••••••••••••••••••••••••••••••••6
4. REFRIGERANT CIRCUIT ••••••••••••••••••••••••••••••••••••••••••••••••7
5. TROUBLESHOOTING•••••••••••••••••••••••••••••••••••••••••••••••••••••8
5-1 FUNCTION OF OPERATION PANEL•••••••••••••••••••••••••••••8
5-2 FLOWCHART OF SELF-CHECK•••••••••••••••••••••••••••••••• 23
5-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD•••••••• 27
5-4 AUTO ICE-MAKER ••••••••••••••••••••••••••••••••••••••••••••••••• 27
5-5 FLOWCHART OF TROUBLE CRITERION •••••••••••••••••••• 31
5-6 TROUBLE CRITERION OF MAIN PARTS •••••••••••••••••••••••• 39
5-7 TEST POINT DIAGRAM OF CONTROL BOARD•••••••••••• 44
5-8 TROUBLESHOOTING FOR SUPERCOOL FREEZING OPERATION •••• 45
6. NAMES OF THE PARTS ••••••••••••••••••••••••••••••••••••••••••••••• 49
7. DISASSEMBLY INSTRUCTIONS ••••••••••••••••••••••••••••••••••••• 50
NOTE:
• RoHS compliant products have <G> mark on the spec name plate.
PARTS CATALOG (OAB162)
C ••••••Taiwan
Model name
indication
(Inside this door)
SERVICE MANUAL
No. OAH162
Models
MR-B46Z-W-C
MR-B46Z-P-C

2
SPECIFICATIONS
1
SPECIFICATIONS
110V, 60 Hz
455
1821 × 600 × 699
104
110
Polyester resin coated steel
ABS resin
Foamed polyurethane (Cyclopentane)
Foamed polyurethane (Cyclopentane)
Foamed polyurethane (Cyclopentane)
Forced air convection
Forced air convection
Fin and tube type
Cabinet, sides, back, front flange and ceiling
Automatic heater defrost
Automatic drainage, Forced evaporation method
Automatic control
LED
183(FREOL S5HFP)
9
kg
kg
mm
g
g
g
V,Hz
L
mm
Unit
Shipping
Weight
Accessories
Evaporator
Condenser
Defrost system
Drain
Temperature control system
Refrigerator compartment interior light
Power supply
Total capacity
Dimensions (H × W × D)
Cabinet
Food liner
Cabinet
Freezer door
Refrigerator door
Freezer
Refrigerator
Insulation
Cooling system
Capillary tube
Desiccant (molecular sieve)
Refrigerant filling capacity R600a
Refrigerating oil (model)
Glass shelf
Two-way flexishelf (Front)
Two-way flexishelf (Back)
Upper case cover
Upper case
Lower case
Water tank (with leadcleaning filter)
Adjustable pocket (Large)
Adjustable pocket (Middle)
Adjustable pocket (Small)
Egg shelf
Bottle pocket
Ice storage box
Soundproof mat
Ice server
Ice tray
Versa compartment case
Aluminum tray (Versa compartment case)
Freezer case (Upper)
Freezer case (Lower)
Vegetable case (Upper)
Vegetable case (Lower)
Adjustable support cover
2 pcs.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
2 pcs.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1 pc.
1.6 × 0.7 × 2720
78
MR-B46Z-C
OAH162

3
ELECTRICAL PARTS SPECIFICATIONS
MR-B46Z-C
Temperature control
Model
NTC thermistor
Freezer Refrigerator Chilled Versa Ice making Vegetable Chilled Vegetable
Compressor Motor damper Heater Heater
Dial position ON OFF OPEN SHUT OPEN SHUT OPEN SHUT OPEN SHUT OPEN SHUT OFF ON OFF ON
HI °C −20.8 −23.5 1.9 0.7 1.8 0.6 – – – – 9.0 7.7 −2.5 −3.7 5.8 4.5
MID °C −18.4 −21.1 4.8 3.5 – – – – – – 10.0 8.7 – – 6.7 5.4
LOW °C −14.3 −17.1 7.7 6.4 – – – – – – 11.1 9.7 – – 7.7 6.4
LOW (Soft freezing) °C––––––−5.3 −6.4––––––––
MID (Soft freezing) °C ––––––−6.4 −7.7––––––––
HI (Soft freezing) °C ––––––−8.3 −9.5––––––––
LOW (FREEZER) °C ––––––−15.1 −16.5 ––––––––
MID (FREEZER) °C ––––––−19.7 −21.2 ––––––––
HI (FREEZER) °C ––––––−23.4 −24.9 ––––––––
ICE MAKING °C ––––––––−17.1 −19.9 ––––––
ICE MAKING STOP °C––––––––−17.1 −19.9 ––––––
ELECTRICAL PARTS SPECIFICATIONS
MR-B46Z-C
Compressor
Model TKA91E23DAH
Power supply 110V, 60 Hz
Rated input W 33.7 (1620 rpm)
Starting current A 4 (Current limiter)
Running current A 0.78 (1620 rpm)
Winding resistance (A.T. 20 ºC) 12.4 Ω
Motor protector
Model MM3-71CCV or KA-122-LATL00
Ambient temperature ºC 25
Time Sec. 16 or less
Current A 17
Defrosting
control
Defrosting
timer
Model Control board
Specification Microcomputer
Freezer
compartment
Defrost finish ºC Thermistor 14 ± 1.5
Thermal fuse ºC 70 ± 2
Defrost heater-2 81 Ω(110 V,150 W)
Deodorizing function of
defrost heater Not equipped
Defrost heater-1 110 V, 81 W
Fan motor
Refrigerator
Model 12539JH-12L-BU-F2
Type DC brushless motor
Input W 4.2
Revolution rpm 2300
Number of poles 4 P
Machine
chamber
Model 4715JL04WS16G51
Input W 1.44
Revolution rpm 1450
Number of poles 4 P
Heater
(Rating)
Water pipe heater 110 V - 4.0 W
Water tank heater 110 V - 3.0 W
Vegetable compartment
heater 110 V - 6.0 W
Duct heater 110 V - 6.0 W
Drain pipe heater 110 V - 4.0 W
Chilled heater 110 V - 6.0 W
OAH162

4
GRAY
VIOLET
BLACK PINK
RED
BLUE
GRAY
BLACK
BLACK
SKY BLUE
BROWN
TEMP. CONTROL BOARD
(ON DISPLAY PANEL)
ICE GEAR BOX
RED
WHITE WHITE/RED
YELLOW
SKY BLUE
BLUE
BLACK
WHITE
BLUE
DRAIN PIPE HEATER
GRAY
REACTOR
WHITE
WHITE
RED
GRAY
WHITE
GRAY WHITE
WATER TANK HEATER ORANGE
LED BOARD IN VEGETABLE ROOM
( WHEN THE DOORS ARE CLOSED.)
PINK
DOOR SW. ( FOR V-COMPARTMENT)
SKY BLUE
LIGHT BROWN
ICE TRAY DETECTION SWITCH
LIGHT BROWN
SKY BLUE
SKY BLUE
BLUE
DOOR SW. ( FOR ICE COMPARTMENT)
SKY BLUE
YELLOW
DOOR SW. ( FOR VERSA COMPARTMENT)
SKY BLUE
LIGHT BROWN
DOOR SW.( R-COMPARTMENT)
SKY BLUE
DOOR SW.( F-COMPARTMENT)
SKY BLUE WHITE/RED
YELLOW GREEN
WHITE
BROWN
RED
WATER PUMP
BROWN
VIOLET
WHITE
RED
FAN MOTOR (FOR COMPRESSOR)
BROWN LIGHT GREEN
WHITE
BLACK
ORANGE
YELLOW
FAN MOTOR
RED
VIOLET
BROWN
YELLOW
WHITE
BLACK
BRIGHT YELLOW
YELLOW
LED BOARD IN
REFRIGERATOR
ROOM
WHITE/RED
WHITE/BLUE
BROWN
GRAY
THERMAL FUSE (73 Û&)
WHITE VIOLET WHITE
WHITE BLUE
DEFROST HEATER 2 DEFROST HEATER 1
BLUE BLACK
RED
PINK
BLUE
COMPENSATIONAL HEATER FOR CHILLED CASE
BLUE
WATER PIPE HEATER
COMPENSATIONAL HEATER FOR VEGETABLE ROOM
BLUE LIGHT GREEN
GRAY GRAY
BLUE BLUE
GRAY GRAY DUCT HEATER GRAY YELLOW
GRAY
RED
WHITE
BLACK
VIOLET
GRAY
MOTOR PROTECTOR
YELLOW VIOLET
PLUG
CONTROL BOARD
INVERTER
F1: 10A FUSE
ON THE BOARD
SKY BLUE SKY BLUE SKY BLUE SKY BLUE SKY BLUE SKY BLUE SKY BLUE
WHITE WHITE WHITE WHITE WHITE WHITE WHITE
WHITE WHITE WHITE WHITE WHITE WHITE
C.THERMISTOR
I.THERMISTOR
V.THERMISTOR
S.THERMISTOR
DEF.THERMISTOR F.THERMISTOR R.THERMISTOR
ORANGE
LIGHT GREEN
YELLOW
BRIGHT YELLOW
WHITE
PINK
BLUE LIGHT BROWN
SKY BLUE
WHITE
BLUE
YELLOW
RED
WHITE/RED
WHITE
BLUE
YELLOW
RED
WHITE/RED
I./C.
MOTOR DAMPER
R
MOTOR DAMPER
WHITE
BLUE
YELLOW
RED
WHITE/RED
S./V.
MOTOR DAMPER
BLACK RED GRAY
YELLOW RED
WHITE
BLACK
SKY BLUE
I.
THERMOPILE
WHITE
t ° t ° t ° t ° t ° t ° t °
MM
M
U
V
W
MS
3~
M
( SKELETON WIRING DIAGRAM )
The wiring diagram in the dashed line is the
same as the one attached to the products.
Although the following parts are called in different names here,
they are identical with the parts shown in the service manual.
C.THERMISTOR (Chilled thermistor)
I.THERMISTOR (Ice making compartment thermistor)
V.THERMISTOR (Vegetable compartment thermistor)
S.THERMISTOR (Versa compartment thermistor)
DEF.THERMISTOR (Defrost thermistor)
F.THERMISTOR (Freezer compartment thermistor)
R.THERMISTOR (Refrigerator compartment thermistor)
TEMP. CONTROL BOARD (ON DISPLAY PANEL): (Operation P.C. board)
COMPENSATIONAL HEATER FOR VEGETABLE ROOM: (Vegetable compartment heater)
COMPENSATIONAL HEATER FOR CHILLED CASE: (Chilled heater)
LED BOARD IN VEGETABLE ROOM: (Vegetable compartment LED)
LED BOARD IN REFRIGERATOR ROOM: (Interior LED)
DOOR SW. (R-COMPARTMENT): Door switch (for refrigerator compartment)
DOOR SW. (F-COMPARTMENT): Door switch (for freezer compartment)
DOOR SW. (FOR V-COMPARTMENT): Door switch (for vegetable compartment)
DOOR SW. (FOR ICE COMPARTMENT): Door switch (for ice making compartment)
DOOR SW. (FOR VERSA COMPARTMENT): Door switch (for versa compartment)
FAN MOTOR (FOR COMPRESSOR): (BOX FAN)
S./V.MOTOR DAMPER: Motor damper (for versa and vegetable compartment)
R.MOTOR DAMPER: Motor damper (for refrigerator compartment)
I.THERMOPILE: Ice tray thermopile
I./C.MOTOR DAMPER: Motor damper (for ice making compartment and chilled)
WATER PUMP: Water supply pump
DEFROST HEATER 1: Defrost heater-1
DEFROST HEATER 2: Defrost heater-2
WIRING DIAGRAM
2
MR-B46Z-C
OAH162

5
5
SKY BLUE
WHITE/RED
WHITE/RED
YELLOW GREEN
ORANGE ORANGE
PINK PINK PINK
LIGHT
BROWN
LIGHT
BROWN
LIGHT
GREEN
WHITE
BRIGHT YELLOW
BRIGHT YELLOW
YELLOW
YELLOW
YELLOW
BROWN
BLACK BLACK
BLUE BLUE BLUE BLUE
WHITE/BLUE
WHITE/RED WHITE/RED WHITE/RED
LIGHT BROWN
LIGHT GREEN
WHITE
YELLOW YELLOW YELLOW YELLOW
BROWN BROWN
RED RED RED
BLACK
BLUE
BLUE BLUE
WHITE WHITE
REACTOR
VIOLET
PINK
YELLOW
BLUE
LIGHT
GREEN
RED RED
WHITE
BLACK BLACK
WHITE
BLACK
PLUG
ELECT BOX CONTROL BOARD
BLACK
VIOLET
SKY BLUE
WHITE
RED
GRAY
TEMP. CONTROL BOARD (ON DISPLAY PANEL)
SKY BLUE
BLACK
RED
GRAY
VIOLET
WHITE
SKY BLUE
GRAY
PINK
BLUE
BROWN
WHITE
REFRIGERATOR COMPARTMENT DOOR
REFRIGERATOR
COMPARTMENT
LIGHT
BROWN
SKY BLUE GRAY
PINK
WHITE WHITE
BLUE BLUE
YELLOW
GREEN
BROWN
BLUE
GRAY
GRAY ORANGE
WHITE WHITE WHITE
RED
BLUE BLUE
R.THERMISTOR
CHILLED
HEATER PIPE HEATER
TANK
HEATER
WATER
PUMP
MOTOR
YELLOW
WHITE
RED BLUE
R
MOTOR
DAMPER
I/C
MOTOR
DAMPER
YELLOW
WHITE
RED
BLUE
I.THERMISTOR
BLUE
RED
WHITE
WHITE
YELLOW
WHITE
BLUE
RED
SKY BLUE
WHITE/RED
YELLOW
BRIGHT YELLOW
C.THERMISTOR
ICE
GEAR BOX
ICE TRAY
DETECTION SWICH
BLUE
RED
WHITE WHITE
YELLOW
WHITE
BLUE RED
SKY BLUE
WHITE/RED
YELLOW
ORANGE
WHITE
WHITE/RED
SKY BLUE
BLUE LIGHT BROWN
SKY BLUE
WHITE
RED
YELLOW
BLUE
LIGHT BROWN LIGHT BROWN
BLACK
RED
SKY BLUE
YELLOW
WHITE
GRAY
SKY BLUE
RED
I.
THERMOPILE
REFRIGERATOR
LED
WHITE/BLUE
WHITE/RED
ICE/VARSA COMPARTMENT DOOR
ICE
COMPARTMENT
YELLOW
SKY BLUE
BULE LIGHT BROWN
R./I./S.COMPARTMENT
DOOR SWITCH
F.COMPARTMENT DOOR SWITCH
WHITE/RED
SKY BLUE
FREEZER
COMPARTMENT
FREEZER COMPARTMENT DOOR
DEF.THERMISTOR
DEFROST HEATER 1
DEFROST HEATER 2
WHITE
WHITE
BLUE
BLUE WHITE
BLACK
PINK
SKY BLUE
WHITE WHITE
RED
SKY BLUE
VERSA
COMPARTMENT
S/V
MOTOR
DAMPER
S.THERMISTOR
YELLOW
WHITE
RED
BLUE
BLUE
RED
WHITE
WHITE
YELLOW
WHITE
BLUE
RED
SKY BLUE
WHITE/RED
YELLOW
BRIGHT YELLOW
ICE
COMPARTMENT
DUCT HEATER
THERMAL FUSE
(73ºC)
F.THERMISTOR
FAN MOTOR (FREEZER)
GRAY
GRAY
GRAY
WHITE
WHITE
WHITE
YELLOW
BLUE
VIOLET
SKY BLUE
GRAY
GRAY
BRIGHT YELLOW
BLACK
YELLOW
VIOLET
YELLOW
BLACK
WHITE
RED
PINK
SKY BLUE
V.COMPARTMENT DOOR SWITCH
VEGETABLE COMPARTMENT DOOR
VEGETABLE
COMPARTMENT
V.THERMISTOR
WHITE
VIOLET
LIGHT GREEN
GRAY
BLUE
BLUE
SKY BLUE
YELLOW
BROWN
VIOLET
WHITE
WHITE
WHITE WHITE
V.HEATE R
MACHINE CHAMBER
COMPARTMENT
BROWN
LIGHT GREEN BLACK
ORANGE
RED
WHITE
BLACK
YELLOW
FAN MOTOR
(COMPRESSOR)
RED
WHITE
BLACK
GRAY
VIOLET
RED
WHITE
BLACK
VIOLET
YELLOW
WHITE
RED
BLACK
COMPRESSOR
(VIEW FROM REAR LEFT SIDE)
MOTOR PROTECTOR
DRAIN PIPE HEATER
GRAY
GRAY
GRAY
RED
ORANGE
GRAY
LED BOARD IN
VEGETABLE ROOM
CN4ACN2A
5V
15
3
4
5
29 25
2
23 21
3
12 10 8 2 20 10 13
4
t °
M
4
16
2
14
3
11 9 7 6 5 4
2
4
24 2223 21 19
4
17 16
t °
851113 79
4
15
4
3
MS
3~
M
t °
M
CN3A
t °
t °
2628 18 135 2224
CN9S
6
79
18 12
t °
13 3
CN50G
531
4
1
t °
CN5D
11
CN1A
4
31
M
4
3
2630
2
1
25
23 546
1
6
612345
12 12 1
4
1
4
11
2
3
4
5
6
165432 123456
12
4321
41
1
4
4
1
1
2
3
1
2
4
1
4
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
1
2
2
1
2
1
6
3
2
1
4321
54321
3
1
1
4
5
113
448
( ACTUAL WIRING DIAGRAM )
( When the doors are closed. )
V.THERMISTOR (Vegetable compartment thermistor)
DEF.THERMISTOR (Defrost thermistor)
R.THERMISTOR (Refrigerator compartment thermistor)
V.HEATER (Vegetable compartment heater)
LED BOARD IN VEGETABLE ROOM: Vegetable compartment LED
REFRIGERATOR LED: Interior LED
R.MOTOR DAMPER (Motor damper for refrigerator compartment)
S/V.MOTOR DAMPER (Motor damper for versa compartment and
vegetable compartment)
I./C.MOTOR DAMPER (Motor damper for ice making compartment
and chilled)
WATER PUMP MOTOR: Water supply pump motor
TANK HEATER (Water tank heater)
DEFROST HEATER 1: Defrost heater-1
DEFROST HEATER 2: Defrost heater-2
C.THERMISTOR (Chilled thermistor)
I.THERMISTOR (Ice making compartment thermistor)
S.THERMISTOR (Versa compartment thermistor)
F.THERMISTOR (Freezer compartment thermistor)
TEMP. CONTROL BOARD (ON DISPLAY PANEL): (Operation P.C.
board)
R./I./S. COMPARTMENT DOOR SWITCH: Door switch (for refrigera-
tor compartment, ice compartment and versa compartment)
F.COMPARTMENT DOOR SWITCH: Door switch (for freezer compart-
ment)
V.COMPARTMENT DOOR SWITCH: Door switch (for vegetable com-
partment)
FAN MOTOR (COMPRESSOR): (BOX FAN)
FAN MOTOR (FREEZER): (Refrigerator fan motor)
I.THERMOPILE: Ice maker thermopile
MR-B46Z-C
OAH162

6
(Pitch between the front wheels)
(Pitch between the rear wheels)
(Including the adjustable support cover)
(Excluding the adjustable support cover)
(Max.)
(Min.)
(Max.)
(Min.)
(Max.)
(Min.)
(Max.)
(Min.)
(Max.)
(Min.)
(Max.) (Min.)
(Display)
(Display)
(Display)
(Cabinet)
OUTLINES AND DIMENSIONS
3
R : Refrigerator compartment
I : Ice making compartment
S : Select compartment [Versa compartment]
F : Freezer compartment
V : Vegetable compartment
DOOR DIMENSION
Unit: mm
MR-B46Z-C
R I SFV
Height 839 207 207 324 367
Width 600 284 310 600 600
REQUIRED SPACE FOR INSTALLATION
Distance between the
refrigerator body and
the wall to open the door
to 90 degrees
(Including the
adjustable support cover)
100
7.5
1,726
2,240
1,821 50
974
708
699
1,270
5600 5
411
OAH162

7
REFRIGERANT CIRCUIT
4
MR-B46Z-C
Back-side condenser
Left-hand side condenser Right-hand side condenser
Charge pipe
(Low pressure side) ø 6.35
Charge pipe
(High pressure
side) ø 4
Dryer
#150
Muffler
Cabinet pipe
Evaporator
Suction pipe
Capillary tube
ø 1.6 x ø 0.70 x 2720
Compressor
OAH162

8
TROUBLESHOOTING
5
5-1 FUNCTION OF OPERATION PANEL
MR-B46Z-C
(1) Function of normal operation
Icon Display
Operation
Compartment
Function General description Time restriction
•Supercool
chilling
•Supercool chilling stores and preserves meat or
fish for a long time at a temperature lower than the
refrigerator compartment or upper case without
freezing them.
•No restriction
•Quick ice
making
•Cooling in the ice making compartment is given pri-
ority, and ice is made rapidly.
•About 10 hours
or
•Ice making has been
completed 10 times.
•Supercool
freezing
•Food is supercooled and moisture in the food is
frozen while its particles are maintained under the
supercooling phenomenon.
*This function is available when the versa compart-
ment is set to soft freezing.
•About 8 hours
•Hot
freezing
•After the button is pressed, it cools rapidly until the
heat of the food is dissipated then the supercool
freezing control is performed.
*This function is available when the versa compart-
ment is set to soft freezing.
•About 9 hours
•Room
select
button
•Detailed settings (existing setting operation) can be
performed.
•
The display will return to the op-
eration panel screen if there is no
operation for about 30 seconds.
* To initialize the settings, touch for 10 seconds. The settings will become as follows.
• Rapid ice, Rapid cool, Fast cooling (Quick ice making),
Supercool Freezing, Power Save Mode … Canceled
• Refrigerator compartment, vegetable compartment, freezer compartment … set to "Middle"
Touching will cause the operable icons to light up.
To save power, all displays other than are usually turned off (it turns
off if there is no operation for about 30 seconds).
When setting or cancelling settings (or
cancelling in the middle), touch one of
these.
Touch an icon to display its setting details.
The refrigerator's ECO level is
indicated with the number of
marks.
ECO GUIDE
Touch to go to
compartment selection;
Touc h
to go to various settings.
The display will return to the
operation panel screen if there is no
operation for about 30 seconds.
Detail Setting
Example: When setting the
refrigerator compartment to "M"
The operation panel employs the touch screen which is operated by touching the screen with your finger.
* The operation panel or your finger is wet or dirty.
* The operation panel is touched with a gloved finger or a finger with a bandage.
*
The operation panel is touched with a sharp-pointed instrument.
,FRQVDQGRWKHUGLVSOD\HGLWHPVH[FHSW are not normally lit for saving energy.
To check the settings, touch to light up those icons and items.
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touch it again.
Touching the screen again without pause may result in false detection. Touching on the screen strongly
does not enhance the detection sensitivity.
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of the user, and operating conditions of the electric appliances around the refrigerator.

The operation panel may not work properly in the following cases.
* During fast cooling, the compartment is cooled
more powerfully by adjusting the rotational speed
of the compressor and the refrigerator fan.
OAH162

9
(2) Demonstration mode for shop display
Setting
Within 1 minute after power is turned on, touch , , and simultaneously for 5 seconds.
When the setting is complete, 2 short beeps sound and is lit.
Demonstration mode is not available when the temperature of freezer compartment is –7°C or lower.
Panel operation mode during demonstration mode
During the demonstration mode, is continuously lit.
Manual mode: By touching the icons, display on the operation panel changes as it is normally operated.
Auto mode: Panel display automatically changes.
When any icon is touched, the panel operation switches to the manual mode.
When no icon is touched for 10 seconds after the operation panel turns off, it switches to the auto mode.
Release
1) Open the ice making compartment door during demonstration mode, and leave it open.
2) Touch to light up the icons.
3) Touch , , and simultaneously for 5 seconds. In about 5 seconds, 2 short beeps sound and is turned off.
Make sure that the room display and the temperature adjustment display on the operation panel do not light up alternately
a minute after the above 3 steps are performed.
Note: Follow the procedure above to release demonstration mode as it cannot be released by simply turning
on/off the power supply.
(3) Ice making test/Self-check
Setting
Touch for 5 seconds.
Operation and its display
While the automatic ice making test is performed, " ", " ", and " " blink on display.
When something is faulty, the error code is indicated.
Release
The test automatically finishes in 10 minutes.
(4) Temperature adjustment for lower case (when supercool chilling is set)
Outline
The lower case in the slide cases can be set to only when it is set to supercool chilling.
When the food is frozen, set it in the ambient temperature of 5 degrees or less.
Setting
1) Touch to light up the icon.
2) Repeatedly touch to light up . (When it does not light up, supercool chilling ( ) has been released.)
3) Touch to light up .
Release
It is almost the same as the setting procedure. Turn off the light of in procedure 3) above.
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(5) Fine adjustment of temperature
(Fine adjustment of temperature is available for refrigerator compartment, the freezer compartment and the
versa compartment. )
Setting the Temperature Fine
Adjustment Mode
Touch to light up icons.
Touch and select the compartment
you would like to set to temperature ¿ne
adjustment mode.
Touch for at least 5 seconds (until the
buzzer sounds).
The refrigerator compartment, freezer
compartment, and versa compartment
can all be set with a single operation.
To Cancel
The same operation as above.
If the setting is reset, it will be cancelled.
Performing the Temperature Fine Adjustment
Touch to light up icons.
Touch to select the compartment to perform
temperature ¿ne adjustment.
Repeatedly touch to perform temperature ¿ne
adjustment.
The temperature can be set to 19 different levels for the refrigerator compartment and freezer compartment,
while it can be set to 24 different levels for the versa compartment (5 levels when set to Soft-Freezing and
19 different levels for Freezing).
When temperature ¿ne adjustment mode is set, the compartment display blinks about every 10 seconds.
To Control the Temperature More Precisely (Temperature Fine Adjustment Mode)
Display Example: When the refrigerator compartment is
set to Temperature Setting 5.
“ ” blinks about
every 10 seconds
“ ” blinks
* The versa compartment can be consecutively set to the Soft-Freezing setting
and the Freezing Setting.
Temperature
setting
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Temperature
setting
1
2
3
4
5
Refrigerator Compartment / Freezer
Compartment / Versa Compartment
(Freezer Setting)
Versa Compartment
(Soft-Freezing Setting)
* represents a blinking display.
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(6) Service Diagnostics Function
1) Outline
• The chart below shows the outline of service diagnostics function.
• “Service diagnostics function entry” needs to be set in order to perform each check mode.
• After the service diagnostics function entry, Touch to select the serial number for the check mode to be performed.
Press for 3 seconds to start the selected check mode.
• blinks while service diagnostics function is performed.
• When one of the check modes is in operation, the other modes cannot be set. The mode in operation needs to be cancelled
before setting another mode.
• After one of the check modes starts, the mode continues operating even if the door gets closed.
(Open the door when releasing the check mode.)
• Refer to the next sections about the operation procedure and the display of each check mode.
• In order to release “service diagnostics function entry,” follow the same procedure as that for setting operation during
“service diagnostics function entry” or each check mode.
Touch to light up the icons.
1. Enter the service
diagnostics function.
(Service diagnostics
function entry)
Setting/releasing method Display
Door Operation Blinking
Open the ice
making compart-
ment door.
Touch and simultaneously for 3
seconds.
2. Select the check mode.
Selecting method Display
Door Operation
Any of the following/blinking Blinking
Open the ice
making compart-
ment door.
Touch .
Each touch of changes the blinking indicator(s) between , , and .
Each combination of , , and indicates the serial number for each check mode.
The service diagnostics function entry starts from the serial number 1, blinking of .
No. Mode
1
Compressor rotational speed change mode
…The rotational speed of the compressor can be changed.
The box fan can be switched on and off.
2
Damper operation mode
…Each damper can be opened and closed. Refrigerator fan
can be switched on and off.
3Thermistor temperature check mode
…
The detected temperature of each thermistor can be checked.
4Error history display mode
…The error occurred in the past can be checked.
5
Set temperature adjustment mode
…The set temperature and the energization rate in each
compartment can be adjusted.
6 - 8
The serial numbers from 6 to 8 can be selected, but do not set
the mode to any of them. Those modes are for factory use only.
Selecting method Display
Door Operation Any of the following/lit Blinking
Open the ice
making compart-
ment door.
Touch for 3 seconds.
The indicators of the serial number ( )for the selected check mode stop blinking and remain lit.
3. Set the check mode.
1
2
3
4
5
6
7
8
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2) Compressor rotational speed change mode
Setting
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
blinks.
With the ice making compartment door open. Touch to select blinking .
With the ice making compartment door open, touch for 3 seconds until 2 short beeps sound.
The compressor rotational speed change mode has started. The mode continues operating even if the door is closed.
The compressor rotational speed change mode is not available during the demonstration mode, the thermistor temperature
check mode, the set temperature adjustment mode, the error history display mode, or when the child lock is enabled.
Display during the compressor rotational speed change mode
During compressor rotational speed change mode, blinks and is lit.
Display of rotational speed
• The ones place and tens place of the compressor rotational speed is displayed separately.
• One of the values (8, 4, 2, and 1) is assigned to each indicator of both tens place and ones place on the display.
The sum of the values corresponding to the lit indicators is the compressor rotational speed.
Rotational speed change mode
Tens place of the compressor
rotational speed
Display Corresponding
values
8
4
2
1
Ones place of the compressor
rotational speed
Display Corresponding
values
8
4
2
1
e.g.) Compressor rotational speed 56 rps, Box fan ON.
“ ” Lit
Tens place of the
compressor
rotational speed
Ones place of the
compressor
rotational speed
Box fan
ON/OFF
Blinking
Maximum rotational
speed of compressor,
Level 9 or Level 10.
“ ” Lit
Box fan
ON
Blinking
Tens place "5"
(=4+1)
Ones place "6"
(=4+2)
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Switching the maximum rotational speed of the compressor between Level 9 and Level 10
During this mode, the maximum rotational speed of the compressor can be switched between level 9 and level 10 by
touching
for 3 seconds.
The maximum rotational speed of the compressor is represented by .
Maximum rotational speed of compressor Display of
Level 9 Lit
Level 10 Not lit
While the maximum rotational speed of the compressor is set to Level 9, the rotational speed cannot be changed to Level
10 by following the method described in “ Changing the rotational speed”.
When high load is applied to the refrigerator such as in summer, setting the maximum rotational speed to Level 9 may not
obtain adequate cooling.
The maximum rotational speed of the compressor that was set to Level 9 will remain the same even after this mode is released .
The maximum rotational speed of the compressor will be memorized in the control board. So, if the control board is
replaced, the set maximum rotational speed will be reset to Level 10.
Release
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
The operation panel returns to the normal temperature display.
The function is automatically released in 1 hour.
Although unplugging and plugging the power code can release this function, it is recommended to follow the procedure
above for protection of the compressor.
* The set maximum rotational speed of the compressor will remain the same even after the power is turned off.
Changing the rotational speed
After setting this mode, rotational speed of the compressor changes every time is touched.
The ones place and tens place of the rotational speed (rps) is displayed separately.
(Basically the compressor starts operation at level 10, however, it may be different depending on models, or as a result of
specification change.)
<Change of rotational speed>
Rotational speed can be changed only when the compressor is in operation. While the compressor stops, rotational speed is
not displayed and the touching operation of is disabled. When the compressor stops, unplug the power code, and wait for
several minutes, then plug it again.
Operation sound may increase in the process of changing rotational speed, but that is not dysfunction. Check the sound
level when rotational speed is stabilized.
Switching ON/OFF the box fan motor
During this mode, touching turns on the box fan motor and touching turns it off.
Box fan
The ON/OFF state is represented by .
ON
OFF
Lit
Not lit
Level 1 Level 2 Level 3 Level 4 Level 5
Normal
Level 6 Level 7 Level 8 Level 9
Level 0 Level 1 Level 2 Level 3 Level 4 Level 5
Normal
Low speed
High speed
Level 6 Level 7 Level 8 Level 9 Level 10
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3) Damper Operation Mode
Setting
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
blinks.
With the ice making compartment door open, touch to select the blinking .
With the ice making compartment door open, touch for 3 seconds until 2 short beeps sound.
The damper operation mode has started. This mode continues operating even if the door gets closed.
The damper operation mode is not available during the demonstration mode, the thermistor temperature check mode, the
compressor rotational speed change mode, the temperature adjustment mode, the error history display mode, or when
the child lock is enabled.
Display during the damper operation mode
During damper operation mode, blinks and is lit.
Control state display of each damper
b) State of damper
on the left represents the current state and on the right represents the next state of the damper operation.
Both buttons indicate that the damper is open when they are lit, and they indicate that the damper is closed when they are
not lit.
a) Damper serial number
The indicators which are normally used for setting
the versa compartment correspond to the values
representing the damper type.
Each serial number is assigned to each compartment
(thermistor), which is used in thermistor temperature
mode and set temperature adjustment mode besides
damper operation mode.
The values (8, 4, 2, and 1) are assigned to each indicator.
The sum of the values corresponding to the lit indicators
is the damper serial number.
Display Corresponding values
8
4
2
1
Serial number Assigned compartment Damper operation mode
1 Refrigerator compartment
2 Chilled
3 Ice making compartment
4 Versa compartment
5 Vegetable compartment
6 Freezer compartment
7 Defrosting
8 Ice tray
9 Outside air
10 Deodorization
11 Versa compartment
thermopile
12 Defrosting-2
13 Ceiling R
/ : SW operation is effective/ineffective
Chilled: For lower case
Present Next
c) ON/OFF state of refrigerator fan motor
The display of represents the ON/OFF state of the refrigerator fan.
“ ” Lit
a) Damper
serial number
c) Refrigerator
fan ON/OFF
d) Display during the
damper operation
“Blinking”
Blinking b) State of damper
: present state
: next state
( When the damper of
the selected compart-
ment is in operation,
the indicator in the
present state blinking.)
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Switching ON/OFF the refrigerator fan motor
During this mode, touching turns on the box fan motor and touching turns it off.
The ON/OFF state of the refrigerator fan motor is represented by .
display Fan motor in the unit
Lit ON
Not lit OFF
Release
With the ice making compartment door open, touch and simultaneously for 3 seconds until, 2 short beeps sound.
The function is automatically released in one hour.
Although unplugging and plugging the power code can release this function, it is recommended to follow the procedure
above for protection of the compressor.
<Present and next states of the damper of the selected compartment>
<The damper of any compartments is in operation>
Blinking
Opening and closing dampers
(1) Touch to select the damper to be set.
Each touch of changes the damper type along with a short beep. The serial number described in a) indicates the selected
damper.
The selected damper is displayed using the serial number (1: refrigerator ~ 13: ceiling R) in numeric order repeatedly.
Damper operation indicators
on the left represents the current state and on the right represents the next state of the damper operation.
Both buttons indicate that the damper is open when they are lit, and they indicate that the damper is closed when they are
not lit.
When the selected damper is in operation, the indicator for the present state brinks.
When any damper including those which are not selected is in operation, blinks.
(2) To open the damper, light up by touching . To close the damper, turn off by touching again.
(3) Touch for 3 seconds to operate the damper until 2 short beeps sound.
The setting of the operating damper cannot be changed. The operation of the dampers which are not selected will be
locked. During the damper operation mode, the dampers will not be controlled to open or close based on the detected
temperature of the thermistor.
The damper operation stops automatically. (The indicator stops blinking and remains lit.)
e.g.) To open the damper of the ice making compartment, which is currently closed, select the items shown below and touch
for 3 seconds.
Blinking
a) Serial number
“3” : Ice making
compartment b) State of damper
Present: (Not lit)
Next:
c) Refrigerator fan
Lit: ON
Present Next
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a) Thermistor
Serial number
c) Ones place of the
thermistor temperature
b) Tens place of the
thermistor temperature
d) Plus and minus sign of the
thermistor temperature
“ ” “ ” Lit
Blinking
4) Thermistor temperature check mode
Setting
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
blinks.
With the ice making compartment door open, touch to select the blinking .
With the ice making compartment door open, touch for 3 seconds until 2 short beeps sound.
The thermistor temperature check mode has started. This mode continues even if the door gets closed.
The thermistor temperature check mode is not available during the demonstration mode, the compressor rotational speed
change mode, damper operation mode, the set temperature adjustment mode, the error history display mode, or when the
child lock is enabled.
Display during the thermistor temperature check mode
During thermistor temperature check mode, blinks and and are lit.
Displaying the thermistor temperature
The kind and temperature of thermistor are displayed on the operation panel.
The outside air temperature detected by thermistor may be a little different from the actual temperature due to the influence
of the temperature in the refrigerator.
a) Thermistor serial number
Each serial number is assigned to each compartment (thermistor), which is used in thermistor temperature mode and set
temperature adjustment mode besides thermistor operation mode.
The values (8, 4, 2, and 1) are assigned to each indicator. The sum of the values corresponding to the lit indicators is the
thermistor serial number.
Display Corresponding values
8
4
2
1
b) Tens place of the thermistor temperature
Display of , , and corresponds to the values 8, 4, 2, and 1 respectively. The sum of the values
corresponding to the lit indicators is the tens place of thermistor temperature.
Display Corresponding
values
8
4
2
1
Serial number Assigned compartment Thermistor temperature check mode
1 Refrigerator compartment
2 Chilled
3 Ice making compartment
4 Versa compartment
5 Vegetable compartment
6 Freezer compartment
7 Defrosting
8 Ice tray
9 Outside air
10 Deodorization
11 Versa compartment ther-
mopile
12 Defrosting-2
13 Ceiling R
14 Ice maker thermopile
15 Chilled compartment ther-
mopile
/ : SW operation is effective/ineffective
Chilled: For lower case
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c) Ones place of the thermistor temperature
Display of , , and corresponds to the values 8, 4, 2, and 1 respectively. The sum of the values
corresponding to the lit indicators is the ones place of thermistor temperature.
Display Corresponding
values
8
4
2
1
Changing the thermistor on display
While thermistor temperature is displayed, touch .
Each touch of changes the thermistor type along with a short beep.
Each thermistor is displayed using the serial numbers described in a) in numeric order repeatedly (1: refrigerator
compartment ~ 15: Chilled compartment thermopile).
Release
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
The screen returns to the normal temperature display.
The function is automatically released in 1 hour.
Although unplugging and plugging the power code can release this function, it is recommended to follow the procedure
above for protection of the compressor.
d) Plus and minus sign of the thermistor temperature
Plus and minus signs of thermistor temperature are represented by .
display Thermistor temperature signs
Lit -
Not lit +
e.g.) The freezer compartment thermistor reads –25 ºC.
d) Ones place
“5” (=4+1)
b) Tens place
“2”
c) Sign “ - ”
“ ” “ ” Lit
Blinking
a) Serial number
“6” : Freezer
compartment
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5) Error history display mode
The errors occurred in the past can be observed as an error history. Use this mode when the actual problem of the
refrigerator is different from the error that was displayed when the service-call received.
The error history display mode offers two ways of display. One of the two is “history display mode,” which shows all errors
occurred in the past in numeric order of the error code; the other is “order of occurrence mode,” which shows the newest 5
errors (at the maximum) from the newest to the older.
The error history display mode starts with “history display mode.”
Setting
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
blinks.
With the ice making compartment door open, touch to select the blinking .
With the ice making compartment door open, touch for 3 seconds until 2 short beeps sound.
The history error mode has started. This mode continues operating even if a door gets opened.
Display during the error history display mode
During error history display mode, blinks and is lit.
Display of error history information.
a) Mode display
Display the selected mode, “history display mode” or “order of occurrence mode.”
b) Tens place of the error code
It displays the tens place of error code.
It applies the same representative method as the error display of self-check.
c) Ones place of the error code
It displays the ones place of error code.
It applies the same representative method as the error display of self-check.
24, 25, 26
24, 25, 26
a) Mode display
b) Tens place
of the error code
c) Ones place of the
error code
“ ” Lit
Blinking
Switching over the mode
Touch to select the preferred error history display mode.
Each touch of switches the mode between “history display mode” and “order of occurrence mode” along with a
short beep.
Display Error history display mode
History display mode All errors occurred in the past are displayed in numeric order of the error code.
Order of occurrence mode The newest 5 errors (at the maximum) are displayed from the newest to the older.
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Tens place
Ones place
Error code Pre-display
3sec.
0.5
sec.
Repetition
0.5
sec.
0.5
sec. 0.5 sec.
5sec. 5sec. 5sec.
E01 E13 E31
3sec.
Pre-display
Display method
Display method of the error code is the same as self check error display. (Refer to 5-2(3)); however, all indicators used for
the display of error code light up simultaneously for 3 seconds before the first error code is displayed (“pre-display”).
e.g.) When errors occurred in the following order:
Refrigerator
fan motor error (E31) Communication error of operation panel (E01) Refrigerator thermistor error (E13)
• Display during the history display mode
Errors are displayed in numeric order.
•Display during the order of occurrence mode
Errors are displayed from the newest to the older.
Tens place
Ones place
Error code Pre-display E13 E01 E31
3sec.
0.5
sec.
Repetition
0.5
sec.
0.5
sec.
0.5
sec.
5sec. 5sec. 5sec. 3sec.
Pre-display
Points to be checked and resetting the error history
Check and take appropriate measures according to the procedures as stated in 5-2(1).
Conduct self-check again to make sure there is no malfunction. (Make sure all connectors are connected properly and
there is no loose connection.)
Refer to “ Setting” and set the error history mode again. With the ice making compartment door open, touch
for 3 seconds to reset the error history. If it is completed correctly, no error code will be displayed.
Release
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
The screen returns to the normal temperature display.
The function is automatically released in one hour.
Although unplugging and plugging the power code can release this function, it is recommended to follow the procedure
above for protection of the compressor.
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6) Setting adjustment mode
The temperature of each compartment and the energization rate of the heaters can be adjusted by touching the
buttons on the operation panel. There are two modes. In the “setting adjustment mode”, the setting temperature of
the compartment is adjustable. In the “heater energization rate adjustment mode”, you can adjust the energization
rate of the pipe heater. Start the setting adjustment mode first to operate these modes.
Setting
With the ice making compartment door open, touch and simultaneously for 3 seconds until 2 short beeps sound.
blinks.
With the ice making compartment door open, touch to select the blinking .
With the ice making compartment door open, touch for 3 seconds until 2 short beeps sound.
The set temperature adjustment mode has started. This mode continues operating even if the door gets closed.
Display during the set temperature adjustment mode
During set temperature adjustment mode, blinks and and are lit.
a) Compartment serial number
Each serial number is assigned to each compartment that will be used in the set temperature adjustment mode besides
damper operation mode and thermistor temperature check mode.
The values (8, 4, 2, and 1) are assigned to each indicator. The sum of the values corresponding to the lit indicators is the
compartment serial number.
Display Corresponding values
8
4
2
1
b) Set temperature adjustment level
3 indicators of , and display the adjustment level of the setting temperature.
(2) Adjusting the set temperature
i. Select the compartment with .
Each touch of changes the compartment of which set temperature will be adjusted along with a short beep.
Each compartment will be displayed using the serial numbers (1: Refrigerator compartment~ 6: Freezer
compartment) in numeric order repeatedly.
a) Compartment
serial number
b) Adjustment level
“–” signs
b) Set temperature
adjustment level
Blinking
Mode display
(Not lit): Setting adjustment mode
“ ” “ ” Lit
Switching the mode
Select the mode to adjust with .
Each touch of switches the mode between “setting adjustment mode” and “heater energization rate adjustment mode”
along with a short beep.
display Setting adjustment mode
Not lit Setting adjustment mode Adjusts the temperature of each compartment.
Lit Heater energization rate adjust-
ment mode
Adjusts the heater energization rate of the
pipe heater.
Setting adjustment mode
(1) Display
Serial number Assigned compartment Set temperature adjustment mode
1 Refrigerator compartment
2 Chilled
3 Ice making compartment
4 Versa compartment
5 Vegetable compartment
6 Freezer compartment
/ : SW operation is effective/ineffective
Chilled: For lower case
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