Sharp SJ-XF50X-T User manual

SERVICE MANUAL
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
Refrigerator-freezer
MODEL
SJ-XF50X-T
No.S0311SJF50XTFT
DESTINATION F
CONTENTS
Refer to "REFRIGERATING-CYCLE REPAIR MANUAL" for handling this refrigerant.
Refrigerant; R600a
[1] PRODUCT SPECIFICATIONS
1. SPECIFICATIONS ………………………… 2
2. ACCESSORIES …………………………… 2
3. AUTOMATIC ICE MAKING ……………… 3
[2] DESIGNATION OF VARIOUS PARTS
1. PART NAMES ……………………………… 4
2. INTERNAL STRUCTURE ………………… 5
3. FLOW OF COOL AIR ……………………… 6
4. TEMPERATURE DISTRIBUTION………… 7
[3] DIMENSIONS
1. OUTER DIMENSIONS AND CLEARANCE …8
2. INNER DIMENSIONS ……………………… 9
[4] ELECTRICAL CIRCUIT DIAGRAMS…………10
1. WIRING DIAGRAM …………………………10
2. ELECTRIC ACCESSORIES LAYOUT …… 11
3. PRECAUTIONS FOR USING LEAD-FREE SOLDER ……12
[5] ELECTRICAL SYSTEM SPECIFICATIONS…13
1. FUNCTIONAL PART SPECIFICATIONS…13
2. MODE FOR DISPLAY………………………14
[6] REFRIGERATION CYCLE SYSTEM SPECIFICATIONS
1. R600A PRECAUTIONS ……………………15
2. TABLE OF R600A CHARACTERISTICS …15
3. REFRIGERATION CYCLE DIAGRAM……15
[7] TROUBLESHOOTING
1. SELF-DIAGNOSIS MODE …………………18
2. FORCED STOPPING OF DOOR ALARM BUZZER …22
3. THERMISTOR CIRCUIT CHECK METHOD …22
4. INSPECTION FLOWCHART AND REPAIR ITEMS …23
5. PLASMACLUSTER OK/NG JUDGMENT …25
[8] DISASSEMBLY/ASSEMBLY
1.
GENERAL DISASSEMBLY SEQUENCE …26
2.
REFRIGERATOR COMPARTMENT DISASSEMBLY …27
3. FREEZER COMPARTMENT/ICE
COMPARTMENT DISASSEMBLY ………29
4. VEGETABLE COMPARTMENT DISASSEMBLY …31
5. HOW TO REMOVE OP. PWB ASS'Y ……32
6. HOW TO REMOVE TERMINAL BOX ……33
7. HOW TO INSTALL R-SUB PACKING ……33
8. HOW TO INSTALL DUCT RT ASS'Y COVER …34
9. ADJUSTMENT OF R-DOOR (DOUBLE DOOR) …35
10 .MAIN PARTS ASSEMBLY…………………36
Parts Guide

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[1] PRODUCT SPECIFICATIONS
SPECIFICATIONS1.
Item SJ-XF50X-T
Rated voltage/Rated frequency 110V~60Hz
Rated current (W) 118
Rated power input of heating systems (W) 171
Defrosting input (W) 130
Defrosting heater input (W) 130
O u t e r d i m e n s i o n s
Width×Depth×Height (mm) 685 x 699 x 1820
Rated total storage volume 501L (17.7 cu.ft.)
Refrigerator compartment 268L (9.47 cu.ft.)
Freezer compartment (upper) 28L (0.99 cu.ft.)
Freezer compartment (lower) 96L (3.39 cu.ft.)
Ice compartment 19L (0.67 cu.ft.)
Vegetable compartment 90L (3.18 cu.ft.)
Weight (kg) 89
Refrigerant (Charging quantity) [Flammable] R600a (68g)
Insulation blowing gas [Flammable] Cyclo pentane (HC)
Cabinet
Inner box material ABS plastic
Outer shell material PET steel
(Hot dipped zinc plated steel sheet with baked polyester resin coating)
Door Door shell material Steel
Door inner material ABS plastic
Temperature control Automatic(adjustable)
Defrosting system Heater system
(automatic start, automatic finish)
Refrigerator lamp LED (8 pcs)
Adjustable legs 2
Casters 4
Climate class ST
PLUG TYPE
Plug cord 2pin
Plug type A-1
Destination mark F
COLOR
Items -T
Outside color Brown
Inside color White
ACCESSORIES2.
Refrigerator Compartment
R shelf 2
Free set shelf (front/back) 1 each
Chilled case 1
Chilled case tray 1
Case 1
Door pocket (left) 2
Door pocket (right) 2
Egg case 1
Egg tray 1
Bottle pocket (left/right) 1each
Water tank (Tank cap, Lock lever, Slide
cap, Filter case, Water tank, Water filter) 1

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Freezer compartment (Upper)
Freezer case (Upper) 1
Stainless tray 1
Freezer compartment (Lower)
Freezer case (top) 1
Freezer case (bottom) 1
Ice compartment
Ice storage box 1
Noise-proof sheet 1
Ice scoop 1
Vegetable compartment
Vegetable case 1
Fruit case 1
Pet case 1
Stainless tray 1
Other Accessories and Printed Materials
Foot grille 1
Operation manual 1
Warranty card 1
AUTOMATIC ICE MAKING3.
Water supply method: Storing water in tank/Direct water supply to ice cube maker•
Water tank volume: Approx. 1.0 L•
Ice making capacity (External air temperature: 30ºC, No door opening/closing, Temperature control: “• 中”, Ice-making mode: “ 通常 ”)
Ice cube size Standard Large
Daily Approx. 1.2 kg Approx. 1.5 kg
Once (8 pieces) Approx. 100 g Approx. 230 g
Ice-making time/once•
Ice cube size Standard Large
Ice making
mode
通常 Approx. 2 hours Approx. 3 hours and 30 minutes
明亮 Approx. 6 hours Approx. 8 hours
急速 Approx. 1 hour and 20 minutes Approx. 2 hours
Others: Water filter is attached.•
Ice scoop is provided.
Enables test operation with the cleaning function.
Heat-resistant temperature of water tank: Approx. 60ºC•
Ice storage quantity•
Ice cube size Standard Large
Normal Approx. 4
0
0 to 64 pcs. Approx. 24 to 32 pcs.
Maximum (when leveled) Approx. 88 to 104 pcs. Approx. 40 to 48 pcs.

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[2] DESIGNATION OF VARIOUS PARTS
PART NAMES1.
Parts names in parentheses "[ ]" are denominations used in the Operation manual.
>@
Ice compartment Freezer compartment (upper)
Freezer compartment (lower)
Freezer compartment (lower)
Noise-proof sheet
Ice storage box
Ice scoop F case sus
F case s
F top case
F bottom case Vegetable case
Fruit case
V case sus
Pet case
Vegetable compartment
Vegetable compartment
Free set shelf
Egg case
Egg tray
Water tank
Cool plate
Case
Chilled case
C case tray
LED
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ] [ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
[ ]
Plasmacluster unit
R shelf
Bottle pocket(left) Bottle pocket(right)
Door pocket(left) Door pocket(right)
[ ]
[ ]
[ ]
[ ]

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INTERNAL STRUCTURE2.
Catalyzer
Humidity sensor
OP. PWB
Proximity switch
Thermo fuse
Catalyzer
Ice compartment Freezer compartment (upper)
Vegetable compartment
Refrigerator compartment
R-shower duct ass’y D-fan motor PCI
Damper ass’y
Thermistor
Ice cube heater
Evaporator
V-thermistor (G-thermistor) V heater
Damper
Terminal box
(Main PWB, EECON-INV PWB, REACTANCE)
Compressor, protector, valve turret
Fan motor g Condensor unit
Caster
Evaporating pan
Side view
Adjustable leg ass’y
F proximity switch
Ice maker ass’y
R door switch
LED PWB ass’y
Cool plate
LED PWB ass’y
R-thermistor
Gear pump
Water pipe ass’y
Water pipe heater
Tank heater
F-thermistor
Evaporator
Heater
Front view
Temp.control PWB
Fan motor f
DEF thermistor Duct heater
Freezer
compartment (lower)

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FLOW OF COOL AIR3.
Flow of Cool air
Ice compartment
Refrigerator compartment
Freezer
compartment (lower)
Freezer
compartment (upper)
Vegetable compartment
Side view
Front view
Freezer
compartment (lower)
Freezer
compartment (upper)
Refrigerator compartment
Ice compartment
When Plasmacluster ion is in operation.

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TEMPERATURE DISTRIBUTION4.
●The temperatures above are indications under the condition of no
food inside, doors closed and surrounding temperature is 30 after
stabilized the inside temperature. (Temperature adjustment is "中")
Approx.3 ~ 7°C Approx.2 ~ 5°C Approx.3 ~ 7°C
Approx.0 ~ 2°C
Approx.-17 ~ -19°C
Approx.-18 ~ -20°C
Approx.-18 ~ -20°C
Approx.3 ~ 8°C

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[3] DIMENSIONS
OUTER DIMENSIONS AND CLEARANCE (UNIT:mm)1.
198 281
699
285 396
551
632.5
661.5
608
68
626.5
4
685
1820
853.2180.8
335
365
8
8
15.5
90
50
709
930
1043
705
60 60
Moving wheels
back side
Moving wheels
front side
(Adjustable feet)
More than More than
More than
135°135°
60
More than More than
60

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INNER DIMENSIONS2.
The dimensions between shelves can be changed by setting the shelves on the other rails.•
311
292
311
562
292
282
118
156 118
67
95
95
96
246
226
355.5
79.5
70
70
398.8
392
383
235
139
44
112
558 543 542
135 269
269
236
268
144
144
75
75
144
75
144
75
138
123
123
183
135
94
163
398.8
89
81
98 68
311
811651
292
123 138
116
145
22
mm
311
106
354
172
206
211
301 213
238
88
253
310
63
218
519
532
393
94.5
109.5
137.5
172
57

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[4] ELECTRICAL CIRCUIT DIAGRAMS
WIRING DIAGRAM1.
Source cord
Reactance
Main PWB
OP
PWB
EECON-INV
PWB
Protector Compressor
Fan
motor g
Fan
motor f
LED
PWB
(left)
Temp.
control
PWB
Indicator
PWB
Plasmacluster
unit
Motor
D-fan motor PCI
Gear
pump
Damper
R
thermistor
F thermistor
DEF
thermistor Ice maker unit
Motor
Switch
Thermistor
Proximity
switch
F proximity
switch
Ice cube
heater
R door
heater
V heater
Duct
heater
V thermistor
V damper
Door
switch
(left)
Door
switch
(right)
LED
PWB
(right)
Terminal box
Valve turret
Humidity sensor
Heater
Thermo fuse
Tank heater Water
pipe
heater

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ELECTRIC ACCESSORIES LAYOUT2.
Harness
Harness
Harness
Harness
Harness
Harness
Earth harness
G-fan
Source cord
Black
White
Green Green
Reactance Reactance
WhiteWhite
Heater
V thermistor
V damper
YellowBrown
F-proximity switch
Duct heater
V-heater
V-heater
Humidity sensor
R door heater
OP.PWB
Valve turret
Tank heater
Ice cube heater
Water pipe heater
EECON-INV PWB
Green
MAIN PWB
TEMP.CONTROL PWB
Terminal box Compressor room
Red
Black
Gray Yellow
Indicator PWB Orange
White
Blue
Motor
Red
Black
Gray
Yellow
Orange
White
Brown
Red
Orange
Yellow
Light green
Blue
Brown
Brown
Black
White
Gray
Red
Red
Orange
Yellow
Light green
Damper harness
Orange
Yellow Blue
Light green
R door switch (left)
R door switch(right)
White
White Orange
Brown
R thermistor
Red
Red
Yellow
Black
Gear pump Purple
Purple
Gray Gray
Blue Blue
Light green
Light green
R-damper
Brown
White Orange
Orange
Water pipe
Water pipe heater
Ice cube tray
Ice cube heater
Brown
Light green
TEMP. CONTROL PWB
Thermistor
Ice maker unit
Harness
SW
Motor
Red
Brown
Red
Blue Orange
Light green
Yellow
Yellow
White
White
White
White
White Light green
Proximity
switch
Black
Black
Red
Orange
Yellow
Light green
Blue
Purple
Gray
White
Black
Brown
Red
Orange
Yellow
Light green
Blue
Tank heater
LED PWB (left) LED PWB
(right)
White
Gray
White
Gray
Humidity sensor
Brown
Red
Orange
Yellow
R door heater
White White
Purple
Blue
OP PWB
Brown Brown
Red Red Red
Orange
Orange
Orange
Yellow
Yellow Yellow
Light
green
V damper
V thermistor
Black White
Gray
Purple
Blue
Light green
White
Brown Black
Black
Red
White
White Gray
Black
Brown
Heater
F proximity switch
Thermo fuse
Blue Blue
Orange
Blue
Brown
Yellow Black Brown
Fan motor
F thermistor DEF thermistor
Duct heater
Red
Red
Orange
Yellow
Light green
White
White
White White Blue Blue Black
Black
Brown
Indicator PWB
LED PWB(right)
LED PWB(left)
R door switch(left)
R door switch(right)
Brown
Brown
Brown
Brown
White
White
White
White
Orange
Orange
Orange
Orange
Orange
Purple
Light green
Light green
Light green
Red
Red
Red
Red
Yellow
Yellow
Yellow
Yellow
Blue
Blue
Blue
Black
Black
Gray
Gray
Gray
Gray
Gear pump
R damper
Purple
Light green
Brown
Brown
White
Orange
Orange
Light green
Light green
Red
Yellow
Blue
Red
Red
Black
Yellow
Yellow
Blue
Gray
Proximity switch
Moter
Moter
Inverter DC harness
Yellow
Green
Blue
Black
Blue
Brown
White
Red
Gray
Compressor ass’y
Comp. harness
Compressor
Blue
Protector
Black
Brown
Red
Blue
Gray
Purple
Black
Valve turret
Valve turret
Brown
Orange
Light green
Red
Yellow
Brown
Orange
Light green
White
White
White
White
White
Black
Brown
Brown
Orange
Light green
Light green
Light green
Red
Yellow
Brown
Orange
Brown
Brown
Orange
Red
Red
Yellow
Orange
Red
Yellow
Purple

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PRECAUTIONS FOR USING LEAD-FREE SOLDER3.
1) Employing lead-free solder
The PWB of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the
service manual. The suffix letter indicates the alloy type of the solder.
Example:
Indicates lead-free solder of tin, silver and copper
2) Using lead-free wire solder
When repairing a PWB with the "LF" symbol, only lead-free solder should be used. (Using normal tin/lead alloy
solder may result in cold soldered joints and damage to printed patterns.)
As the melting point of lead-free solder is approximately 40°C higher than tin/lead alloy solder, it is recommend that a
dedicated bit is used, and that the iron temperature is adjusted accordingly.
3) Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is higher and has poorer wettability, (flow), to prevent damage
to the land of the PWB, extreme care should be taken not to leave the bit in contact with the PWB for an extended
period of time. Remove the bit as soon as a good flow is achieved.The high content of tin in lead free solder will
cause premature corrosion of the bit. To reduce wear on the bit, reduce the temperature or turn off the iron when it is
not required.
Leaving different types of solder on the bit will cause contamination of the different alloys, which will alter their
characteristics, making good soldering more difficult. It will be necessary to clean and replace bits more often when
using lead-free solder. To reduce bit wear, care should be taken to clean the bit thoroughly after each use.

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[5] ELECTRICAL SYSTEM SPECIFICATIONS
FUNCTIONAL PART SPECIFICATIONS1. Part Name Specifications Function
Fan motor F
Model No.: 4715JL-09W-S37
Rating: DC15V
Power Input: 1.05W (Vs:2.6V)
For cooling
(For freezer compartment)
Fan motor g
Model No.: 4515JL-09W-S10-G01
Rating: DC12V
Power Input: 1.2W
For condensing
(Out side refrigerator)
D-fan motor PCI
Model No.: D09F-12SM20(EX)
Rating: DC12V 0.13A
Power Input: 1.56W
For ion releasing
(For refrigerator compartment)
Damper ass'y (R damper) 415 ± 50Ω(25°C) For refrigerator compartment temperature control
Damper (V damper) 415 ± 50Ω(25°C) For vegetable compartment temperature control
Motor Rating: DC12V 0.13A 300ΩDeodorant/bacteria elimination switching damper
Door switch 5mA 5V DC For detection of opening or closing of the door
(For refrigerator compartment)
Proximity switch DC15V 100mA 1W For detection of opening or closing of the door
(For Ice compartment)
F proximity switch DC15V 100mA 1W For detection of opening or closing of the door
(For freezer compartment (bottom))
Compressor
Model No.: VESD9C+
Rating: 100V 50/60Hz
Resistance value: 9.6Ω(at 25°C)
Protector MODEL: MSP59AMN-6
Operating temperature: 120°C For compressor overload prevention
Main PWB For main control
OP.PWB
3.3V 4mA 12mW (Green)
2.3V 10mA 22mW (Red)
3.3V 5mA 16mW (Blue)
For operation panel control (door panel)
LED PWB 15V 72mA x 1.125W For refrigerator compartment illumination
Indicator PWB 3.2V 20mA 38mW For display of Plasmacluster operation
Source cord 125V 7A Source cord (2 Pin + earth)
F thermistor Resistance: 6.4kΩ(at 0°C) For detection of the freezer compartment temperature
R thermistor Resistance: 6.4kΩ(at 0°C) For detection of the refrigerator compartment temperature
DEF thermistor Resistance: 15kΩ(at 0°C) Senses when defrosting is completed
Thermo fuse Rating: 250 V 10 A
Rated operating temperature: 77°C For defrosting temperature excessive rise prevention
Thermistor Resistance value: 6.0kΩ(at 0°C) For detection of ice tray temperature
G-thermistor (V-thermistor) Resistance: 1.94Ω(at 0°C) For detection of vegetable compartment temperature
Gear pump Supplies water to the ice cube maker
Heater 110V 130W 93ΩFor defrosting
Plasmacluter unit DC12V 20mA For bacteria elimination in compartment
Reactance 9mH±10% Class E wiring
Temp. control PWB For operation panel control (inside)
EECON-INV PWB 100V 50/60Hz For compressor drive
Duct heater 6.0W 1666Ω±7% For prevension of frosting
Humidity sensor 0.5mA DC5V For detection of outside temperature and humidity
Ice cube heater 12W 833ΩFor making clear ice cube
Partition heater(R door heater) 3.4W/2910ΩFor refrigerator compartment door condensation prevention
Water pipe heater 2.8W/3565ΩFor water pipe freezing prevention
Tank heater 1.0W/9638ΩAvoid the water tank from freezing
V heater ass'y 9.0W/1110ΩFor vegetable compartment temperature compensation
Valve turret For switching refrigerant
:Unexchengeable parts or Independently unexchangeable parts.

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MODE FOR DISPLAY2. How to set the product in this mode2-1.
Open the doors of the refrigerator compartment and the ice compartment within 2 minutes after turning ON the•
power to the main unit, and press and hold the [ 冷凍 ] button for 5 seconds or longer.
How to cancel this mode2-2.
With the doors of the refrigerator compartment and the ice compartment opened, press and hold the [• 冷凍 ]
button for 5 seconds or longer.
Even if the main power supply is turned OFF, the display mode will be maintained. (not be cancelled)
Operation in the display mode2-3.
Each load (compressor, each fan motor, all heaters, damper, ice release motor, water pump motor) stops.1)
The damper is normally kept opened.2)
Even if the ice compartment or the freezer compartment (lower) door is opened, the door-open buzzer does3)
not sound.
When the refrigerator compartment door is opened:4)
The refrigerator compartment illumination lamp and indicator LED are lit.•
The cooling/refrigerator compartment PCI fan motor operates.•
The door-open buzzer does not sound.•
Operation panel5)
<Inside of compartment>
The temperature control lamps (five lamps) will blink in sequence one by one.•
If the operation panel button is operated, ordinary operation is executed until the refrigerator compartment door•
is closed.
Note: For indication only. Each mode operation is not executed.
<Outside of compartment>
The operation panel lamps on the door will blink in sequence one by one.•

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[6] REFRIGERATION CYCLE SYSTEM SPECIFICATIONS
R600A PRECAUTIONS1.
• Do not use any refrigerant other than R600a.
• Gas leak testers for HFC-134a, CFC-12, HCFC-22, etc., cannot be used.
• A special tool is used for the R600a cycle.
TABLE OF R600A CHARACTERISTICS2.
Refrigerant saturated vapor pressure table R600a
(Unit) Temperature: °C, Pressure: kgf/cm abs
Temperature
Pressure
-20 -15 -10 -5 0 10 15 20 25 30 35 40 45 505
0.74 1.601.340.91 1.11 1.91 2.25 2.64 3.08 3.58 4.13 4.74 5.42 7.006.17
(Unit)Temperature:°C, Pressure: MPa abs
Temperature
Pressure
-20 -15 -10 -5 0 10 15 20 25 30 35 40 45 505
0.073 0.1570.1310.089 0.109 0.187 0.221 0.259 0.302 0.351 0.405 0.465 0.532 0.6860.605
REFRIGERATION CYCLE DIAGRAM3. Piping Diagram3-1.
①
②
③
⑤
⑨
⑬
⑭
⑮
⑪
⑧
④
⑯
⑫
⑥
⑩
⑱
⑰
⑦
Charge pipe
←（①～⑱）
Show the order of the refrigerant flow
Back
condenser
Dryer
Capillary
tube A
Evaporator
Capillary
tube B
Suction
connector
Suction
pipe
Charge pipe
Compressor
Discharge pipe
ass’y
Side condenser R
Dew proofing condenser
Bottom condenser
Side condenser L
Extension
barrel
Extra
cond.
unit
ass’y

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Schematic diagram3-2.
R-valve ass’y
Charge pipe
(Low presure side)
Side condenser L
Side
condenser R
Dryer
Back condenser
Bottom condenser
Charge pipe
(High presure side)
D.P
condenser
Suction connector
Suction pipe
Compressor
Evaporator
Discharge pipe kit
Extra cond. unit kit
Extra cond.
unit
Capillary tube A I. D.0.55
Capillary tube B I. D.0.7
Piping detail drawing3-3.
: Pinch point
Compressor
R-valve ass’y
Side condenser R
Inlet
Dew proofing
condenser Inlet
Side condenser R Outlet
Back condenser ass’y Outlet
Bottom condenser ass’y Outlet
Bottom condenser ass’y Inlet
Capillary tube B
Capillary tube A Back condenser Inlet
Extra cond.unit
ass’y
Dryer
Dew proofing
condenser Outlet
Side condenser L Outlet
Side condenser L Inlet
Discharge pipe
ass’y

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Specifications of Refrigerant Valve Operation3-4.
Modes and operating conditions of refrigerant valve (3-way valve)1)
Valve is fully closed:1.
• This mode is used in compressor OFF status.
Only fine capillary is opened:2.
• During normal cooling operation
Only wide capillary is opened:3.
• During cooling operation under large load
Both capillaries are opened4.
• The refrigerator is set in this mode for only one minute after the power supply is turned ON. This mode is used
for vacuuming. During cooling operation, this mode is not used.
• Differentiation between fine capillary and wide capillary
- Fine capillary: Capillary tube A
- Wide capillary: Capillary tube B
- The fine capillary is identified with a yellow mark.
Fault and status of refrigerant valve2)
• There is no method to give an instruction from the PWB and confirm the valve position.
Refrigerant valve status Problem
1Both capillaries are opened, and the valve does not operate.
No problem on cooling operation No problem
2Only the fine capillary is opened, and the valve does not operate.
Cooling performance deteriorates under large load.
Refrigerant shortage may occur, causing frost around
the evaporator inlet to increase.
3Only the wide capillary is opened, and the valve does not operate.
No problem on cooling operation No problem
4Both capillaries are closed, and the valve does not operate.
Cooling operation is disabled.
Cooling operation is disabled even when the
compressor is ON.
• Fault of the refrigerant valve cannot be displayed in the self-diagnosis mode.

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[7] TROUBLESHOOTING
SELF-DIAGNOSIS MODE1.
Outline1-1.
The self-diagnosis mode stores fault data for 5 days in the past (including “today”), and displays them by the date•
in the order of occurrence.
Self-diagnosis data to be displayed Storage of self-diagnosis result
Current fault Fault history
All faults that have currently occurred
(Displayed in the order of fault number)
Faults that occurred in the past five days
(Displayed by the date in the order of occurrence)
Storage of fault data for the past five days
(Up to 9 items per day)
Self-diagnosis display•
Mode input “Current”
fault display “Today” fault history display
“1-day before”
fault history display “2-days before”
fault history display “3-days before”
fault history display “4-days before”
fault history display
Button
operation Button
operation Button operation Button operation Button operation
Display priority is given to the upper stages
of self-diagnosis display (Table 1) (All items) The last fault on that day is displayed first, and the older ones
are displayed in the order of occurrence. (Up to 9 items per day)
(Note 1) Self-diagnosis result data for 5 days (including “today”) are stored. 24 hours from the time when the
refrigerator power supply turned ON is defined as “one day”.
24 hours 24 hours 24 hours 24 hours 24 hours 24 hours
Today
Current time
1-day before 2-days before
Stored data
3-days before 4-days before n-days before
Refrigerator power supply
is turned ON
(Note 2) How to clear stored data
After turning ON the power to the main unit, open the doors of the refrigerator compartment and the ice1)
compartment within 2 minutes, and press and hold the [ 冷凍 ] button for 5 seconds or longer.
With the doors of the refrigerator compartment and the ice compartment opened, press and hold the [2) 冷凍 ]
button for 5 seconds or longer again.
Self-diagnosis mode1-2.
Mode input method1)
With the refrigerator compartment door opened1)
(the temperature control lamp unlit), press and hold the
[ 冷蔵室 ] button for 5 seconds.
(The buzzer sounds, “beep, beep”.)
Open and close the refrigerator compartment door three2)
times.
(within 10 seconds after keeping the [ 冷蔵室 ] button
pressed for 5 seconds)
The buzzer sounds “beep”, and the refrigerator enters the3)
self-diagnosis mode.
* The self-diagnosis mode will be automatically canceled
when the status with no button operation continues for 3 minutes.
* If the refrigerator does not enter the self-diagnosis mode, a fault with the door switch system can be considered.

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Operation in the self-diagnosis mode2)
The compressor is forcedly turned ON. (Excepting a period of defrosting operation and compressor ON delay•
time)
The cooling, condenser and R-fan motors are forcedly turned ON.•
(These motors will be forcedly turned ON even while the compressor is OFF. However, when the door is opened,
the motors other than the condenser fan motor are kept OFF.)
The refrigerator compartment/vegetable compartment PCI fan and the PCI are forcedly turned ON. (However,•
when the door is opened, the PCI and fan are kept OFF.)
When the refrigerator compartment door is opened, the R damper is forcedly closed. When the refrigerator•
compartment door is closed, the R damper is forcedly opened. (Opening/closing the refrigerator compartment
door activates the R damper operation.)
During execution of the self-diagnosis mode, and for 20 minutes after cancellation of this mode, self-diagnosis•
data serial output is executed.
During execution of the self-diagnosis mode, and for 20 minutes after cancellation of this mode, the door-open•
buzzer does not sound.
Operation during self-diagnosis mode, and self-diagnosis display3)
Self-diagnosis data is displayed on the temperature control panel. (Refer to self-diagnosis display [Table 1].)1)
Self-diagnosis display can be switched by operating the temperature control panel buttons.2)
Temperature control panel button Operation
[冷凍室 ] Fault data forward scroll
[冷蔵室 ] Fault data reverse scroll
[冷凍 ] Fault occurrence date forward scroll
To return to the previous
display (Reverse scroll) To proceed to the next display.
(Forward scroll)
Self-diagnosis (fault) display
To change fault occurrence
date to be displayed.
To indicate occurrence date
of displayed fault.

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<Example of button operations and self-diagnosis display>
* During self-diagnosis mode input, the “current” fault is displayed.
・
・
・ ・
・
・
・
・
・
[During mode input]
“Current” fault
Display of the fault
at the top of Table 1
Press [冷蔵室].
Press [冷凍室].
Press [冷蔵室].
Press [冷凍室].
Display of the fault at
the second top of Table 1
Display of all faults
that have occurred
Press
[冷凍].
Press
[冷凍].
Press
[冷凍].
“Current” fault history
Press
[冷凍].
Press
[冷凍].
Press
[冷凍].
Display of the
latest fault
Display of the
second latest fault
Press [冷蔵室].
Press [冷凍室].
Press [冷蔵室].
Press [冷凍室].
Press [冷蔵室].
Press [冷凍室].
Press [冷蔵室].
Press [冷凍室].
Display of up to 9 items Display of up to 9 items
“1-day before”
fault history
“2-day before”
fault history
Display of the
last fault
Display of the fault just
before the last
“3-days before”
fault history
“4-days before”
fault history
* During forward/reverse scroll of fault display with [ 冷凍室 ]/[ 冷蔵室 ] button, if fault data to be displayed next
does not exist, the buzzer sounds “beep-beep”, and the display will not change.
* To display a fault occurrence date for currently displayed data, press the [ 冷凍 ] lamp.
Fault occurrence date [ 冷凍 ] lamp.
Current Unlit OFF
Today Lit O N
1-day before Blink once. Repeat "2-sec. OFF"/"0.5-sec. ON/0.5-sec. OFF".
2-days before Blink twice. Repeat "2-sec. OFF"/"0.5-sec. ON/0.5-sec. OFF" twice.
3-days before Blink three times. Repeat "2-sec. OFF"/"0.5-sec. ON/0.5-sec. OFF" three times.
4-days before Blink four times. Repeat "2-sec. OFF"/"0.5-sec. ON/0.5-sec. OFF" four times.
Example of lamp indication: “2-days before”
0.5-sec. 0.5-sec. 0.5-sec. 0.5-sec. 0.5-sec. 0.5-sec. 0.5-sec. 0.5-sec.
2-sec. pause 2-sec. pause
Repeat
ON
OFF