Order No. PHAT110901CE
(Revision : Feb. 2012)
Service Manual
Refrigerator
NR-BY552XS
NR-BY552XW
NR-BY602XS
NR-BY552XS, XW NR-BY602XS
Product Colour
Stainless Touch (XS)
Korean White (XW)
Destination
Thailand, Malaysia, Singapore
Indonesia, Vietnam, India
Philippines, GULF, PGF
Australia/New Zealand
CFCs have been used in refrigerant as refrigerator and the insulation materials for many years. But it is now known that these compounds which once seemed so ideal for use as cleaning agents and in refrigeration systems, destroy the earth’s ozone layer as a result, an international body decided on a total worldwide ban of harmful CFCs by the end of 1995.
WARNING
The service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt within this service information by anyone else could result in serious injury or death.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of manufacturer.
© Panasonic Appliances (Thailand) Co., Ltd. 2012.
All rights reserved. Unauthorized copying and distribution is a violation of law.
CONTENT
1. Safety Cautions for Repairing
1.1 Warning
1.2 Caution
2. Specification and Components
2.1 NR-BY552XS, XW
2.2 NR-BY602XS
3. Performance Data
3.1 NR-BY552X (AT 32 ± 1°C)
3.2 NR-BY602X (AT 32 ± 1°C)
4. Display Specification
5. Self Protecting Function
5.1 Protecting for IC
5.2 Protection for compressor locked
5.3 Protection for power supply droping
6. Self Diagnoising Function
7. Temperature Control
8. Inverter Control Display
9. Refrigerator Instruction Guideline
10. Troubleshooting Guide
10.1 Not cool at all [ Both PC & FC (compressor does not operate) ]
10.2 Cool, not enough [ Both PC & FC (compressor operates) ]
10.3 Eco-Navi operation doesn’t work (PC/FC/IC cooling condition is normal)
11. Schematic Diagram
11.1 Wiring Diagram : NR-BY552XS, XW
11.2 Wiring Diagram : NR-BY602XS
12. Disassembly Instruction
12.1 LCD Cover
12.2 Cover Control
12.3 PCB Control
12.4 Feature of Crisper
12.5 Maintain method : Take off Crisper handle
12.6 Maintain method : Crisper handle ass’y
13. Parts Exploded View and Replacement Parts List
13.1 Part Exploded View : Body
13.2 Part Exploded View : Door
13.3 Part Exploded View : Packing
13.4 Replacement Parts List : NR-BY552XS, XW / NR-BY602XS
NR-BY552 / NR-BY602
Page
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23 - 24
24 - 25
26
27
28
29 - 31
- 2 -
NR-BY552 / NR-BY602
1. SAFETY CAUTIONS FOR REPAIRING
When you repair the refrigerator, please kindly take care for the following cautions.
1.1 Warning
Before repairing unit, unplug supply cord
• Before you repair the refrigerator, please unplug the supply cord.
Use authentic parts when repairing
• When you replace the parts, please use authentic parts to replace defective parts.
Caution during brazing
• When you use touch for brazing, please ensure ventilation.
Otherwise, you will be poisoned by carbon monoxide.
Pay attention to using refrigerant
• If refrigerant touches fire, the gas becomes poisonous gas.
Pay attention to getting electricity shock
• When you check the voltage of terminal, please do not touch the electricity part terminal.
• When you replace the parts, please wait for 3 minutes at least for discharging capacitor.
Check safety after repairing
• Check the screws, parts, lead wires to take in place.
• Check the repairing portion whether circumferential parts are damaged or not.
• Check insulation resistance between supply plug and earth.
• When install refrigerator, check condition of supply cord and plug.
• Wipe off the dust on plug.
• Cutting and seal the electric device carefully.
1.2 Caution
Watch the hot parts
• During operation and after operation, compressor and pipes are hot.
• Also, under these condition, heater are hot.
• Do not burn your fingers when you touch it.
Pay attention to refrigerant
• Do not touch liquid refrigerant. Otherwise your hands may be burnt.
Pay attention to edge of parts
• Otherwise, your fingers may be cut.
Pay attention to fins of evaporator and condenser
• Otherwise, your fingers may be cut.
Before transportatin, adjust the bolt
• Otherwise, the floor may be damaged.
Do not touch the pipe after brazing
• Otherwise, your hands may be burnt.
- 3 -
NR-BY552 / NR-BY602
2. SPECIFICATION AND COMPONENTS
2.1 NR-BY552XS, NR-BY552XW
MODEL
Destination
Code Attached Model
Material Spec.
System Spec.
Plug
Power Source
Thailand
TH
Malaysia
MY
Singapore
SG
Indonesia
1D
NR-BY552XS
Vietnam
VN
Stainless
India
1N
NR-BY552XW
Philippines Australia/New Zealand Australia/New Zealand
PH AU/NZ AU/NZ
White
C3P S3P S3P C2P C2P
Inverter
B3P A2P
220V/50Hz 240V/50Hz
230V/50Hz
220~240V/50Hz
220V/50Hz 230V/50Hz 230V/60Hz
K3P
240V/50Hz
K3P
240V/50Hz
Specification
Capacity
(Total Gross Volume)
Capacity
(Total Storage Volume)
External Dimension Width (mm)
Depth (mm)
Height (mm)
Temperature Control
551L
(FC : 153L, PC : 398L)
461L
(FC : 99L, PC : 362L)
775
745
1714
FC : Electronic control (PCB)
PC : Baffle damper thermostat
Full-automatic heater defrost with Micro Controller
Vacuum Formed ABS resin
Polyurethane foam (cabinet and door)
80 Kg
Defrosting
Inner Liner
Insulation
Net Weight
Sealed Unit
Evaporator
Condenser
Compressor
Dryer
Refrigerant
Lubricating Oil
Model Name
Cylinder Capa.
REF. Capa.
Power Input
Type
Charging Amt.
Type
Charging Amt.
Type
Charging Amt.
Electric Part
Door Switch Type
Fan Motor
Defrosting Control /
Electronic PCB
Control
Rating
Type
Rating
Type
Defrost Cycle
Fin Tube Type
Wrapper Type (concealed condenser)
EFI100E13DGH-COECS
27 / 52r / s, 75 / 193W
40.5 / 112W
Molecular Sieves (XH-9)
5g.
R600a
65 ± 5g
Freol S -10
215 ± 5ml
Heating Device for Defrosting
Overload Protector
Automatic Temp.
Control Device (PC)
(Baffle Damper)
Defrost Sensor (DFC)
FC Sensor (FCC)
Ambient Temp.
Sensor (ATC)
Type
Rating
Type
Opening Temp.
Closing Temp.
Impression I.
Type
Rating
Kind
Type
Rating
Type
Rating
Type
Rating
Defrost Thermal Fuse Type
Rating
Light Irradiation
Device (PC)
Type
Rating
Light Irradiation
Device (Crisper)
Type
Rating
D3D-121 (S.P. - S.T.)
250V / 0.5A
FBA11J14VXA Ø 110mm. prop fan (Box Type)
DC 14V / 1.54W
PAS - BY602X (Control)
(1) Ambient Temp. over 34°C 8h
(2) Ambient Temp. 2 3°C ~ 33°C 8h
(3) Ambient Temp. under 22°C 13h
(4) Power on 4h (Rated time)
MM6-8V41
230V / 216W
MM3-20DCW
105 ± 5 °C
61 ± 8 °C
2.0 A ± 75% (AT 70 °C)
MM1-6187
Closed Temp. (normal) -6.0 ± 1.5
°C
Gas Charge Type
NTC
B = 3819K ± 2%
R10 = 3.899K
Ω
± 3%
NTC
B = 3850K ± 2%
R-20 = 18.9K
Ω
± 1.8%
NTC
B = 3435 ± 1%
R25 = 10.0K
Ω
± 3%
Micro Temp.
250V / 10A / 73 °C
LED Lamp PCB
12V / 100mA
LED Lamp PCB
5V / 30mA
- 4 -
NR-BY552 / NR-BY602
2.2 NR-BY602XS
MODEL
Destination
Code Attached Model
Material Spec.
System Spec.
Plug
Power Source
Specification
Capacity
(Total Gross Volume)
Capacity
(Total Storage Volume)
External Dimension Width (mm)
Depth (mm)
Height (mm)
Temperature Control
Thailand
TH
C3P
220V/50Hz
Malaysia
MY
S3P
240V/50Hz
Singapore
SG
S3P
230V/50Hz
Indonesia
1D
C2P
220~240V/50Hz
NR-BY602XS
Vietnam
VN
Stainless
Inverter
C2P
220V/50Hz
India
1N
Philippines
PH
GULF
AE
PGF
WG
B3P A2P S3P C2P (Shuko)
230V/50Hz 230V/60Hz 220V/50Hz 220V/50Hz
602L
(FC : 153L, PC : 449L)
511L
(FC : 99L, PC : 412L)
775
745
1846
FC : Electronic control (PCB)
PC : Baffle damper thermostat
Full-automatic heater defrost with Micro Controller
Vacuum Formed ABS resin
Polyurethane foam (cabinet and door)
86 Kg
Defrosting
Inner Liner
Insulation
Net Weight
Sealed Unit
Evaporator
Condenser
Compressor
Dryer
Refrigerant
Lubricating Oil
Model Name
Cylinder Capa.
REF. Capa.
Power Input
Type
Charging Amt.
Type
Charging Amt.
Type
Charging Amt.
Electric Part
Door Switch Type
Fan Motor
Defrosting Control /
Electronic PCB
Control
Rating
Type
Rating
Type
Defrost Cycle
Fin Tube Type
Wrapper Type (concealed condenser)
EFI100E13DGH-COECS
27 / 52r / s, 75 / 193W
40.5 / 112W
Molecular Sieves (XH-9)
5g.
R600a
65 ± 5g
Freol S -10
215 ± 5ml
Heating Device for Defrosting
Overload Protector
Automatic Temp.
Control Device (PC)
(Baffle Damper)
Defrost Sensor (DFC)
Type
Rating
Type
Opening Temp.
Closing Temp.
Impression I.
Type
Rating
Kind
Type
Rating
FC Sensor (FCC)
Ambient Temp.
Sensor (ATC)
Type
Rating
Type
Rating
Defrost Thermal Fuse Type
Rating
Light Irradiation
Device (PC)
Type
Rating
Light Irradiation
Device (Crisper)
Type
Rating
D3D-121 (S.P. - S.T.)
250V / 0.5A
FBA11J14VXA Ø 110mm. prop fan (Box Type)
DC 14V / 1.54W
PAS - BY602X (Control)
(1) Ambient Temp. over 34°C 8h
(2) Ambient Temp. 2 3°C ~ 33°C 8h
(3) Ambient Temp. under 22°C 13h
(4) Power on 4h (Rated time)
MM6-8V41
230V / 214W
MM3-20DCW
105 ± 5 °C
61 ± 8 °C
2.0 A ± 75% (AT 70 °C)
MM1-6187
Closed Temp. (normal) -6.0 ± 1.5
°C
Gas Charge Type
NTC
B = 3819K ± 2%
R10 = 3.899K
Ω
± 3%
NTC
B = 3850K ± 2%
R-20 = 18.9K
Ω
± 1.8%
NTC
B = 3435 ± 1%
R25 = 10.0K
Ω
± 3%
Micro Temp.
250V / 10A / 73 °C
LED Lamp PCB
12V / 100mA
LED Lamp PCB
5V / 30mA
- 5 -
NR-BY552 / NR-BY602
3. PERFORMANCE DATA
3.1 NR-BY552 (AT 32 ± 1°C)
Thermostat Dial Setting
Mean Fresh Food Compartment Temp.
Mean Freezer Load Temp.
Vegetable Crisper Temp.
PC Door Shelf Upper Temp.
Egg Tray Temp.
PC Door Shelf Bottom Temp.
Chilled Case Temp.
Running Ratio t3 (°C)
(°C)
(°C)
(°C)
(°C)
(°C)
(°C)
(%)
“ 3 ”
1.5 ± 2.5
-22.0 ± 2.5
-
-
-
-
-
85 ± 15
3.2 NR-BY602 (AT 32 ± 1°C)
Thermostat Dial Setting
Mean Fresh Food Compartment Temp.
Mean Freezer Load Temp.
Vegetable Crisper Temp.
PC Door Shelf Upper Temp.
Egg Tray Temp.
PC Door Shelf Bottom Temp.
Chilled Case Temp.
Running Ratio t3 (°C)
(°C)
(°C)
(°C)
(°C)
(°C)
(°C)
(%)
“ 3 ”
1.5 ± 2.5
-22.0 ± 2.5
-
-
-
-
-
85 ± 15
“ 2 ”
4.0 ± 2.5
-20.0 ± 2.5
4.0 ± 2.5
7.0 ± 2.5
4.0 ± 2.5
5.0 ± 2.5
0.0 ± 2.5
80 ± 15
“ 1 ”
7.0 ± 2.5
-15.0 ± 2.5
-
-
-
-
-
65 ± 15
“ 2 ”
4.0 ± 2.5
-19.5 ± 2.5
5.0 ± 2.5
8.0 ± 2.5
5.0 ± 2.5
5.5 ± 2.5
1.5 ± 2.5
80 ± 15
“ 1 ”
7.0 ± 2.5
-15.0 ± 2.5
-
-
-
-
-
65 ± 15
- 6 -
NR-BY552 / NR-BY602
4. DISPLAY SPECIFICATION
NR-BY602
PROCESS INSPECTION DISPLAY
FREEZER
LED (3 pcs)
QUICK FREEZING
LED
FREEZING CONTROL
BUTTON
QUICK FREEZING
BUTTON
ECONAVI
LED
IN-PROCESS INSPECTION
START
CONDITION
END
CONDITION
CONTENTS
FOR CONTROL
MANUAL DEFROST
AUTOGNOSIS
JUDGEMENT
Operate the following controls within 3 sec., within 30 sec., after power-on while PC and FC door are open.
QUICK FREEZING BUTTON FREEZER CONTROL BUTTON
QUICK FREEZING BUTTON
① Hold down QUICK FREEZING BUTTON for over a second.
(Manual defrost)
② After 4 hours (Defrost start)
COMP
FC FAN
HEATER
LED
: R 6 (71rps)
: VF4 (Ultrahigh Speed)
: DEFROST HEATER OFF
: ECONAVI LED and FREEZER LED [ NORMAL ]
BRINKING (ON_1sec/OFF_1sec)
Hold down QUICK FREEZING BUTTON for over a sec.
During in-process inspection.
Indicate AUTOGNOSIS in which case abnormal condition.
NOISE MODE
CONTENTS
For 45 sec., of the start of IN-PROCESS INSPECTION
COMP : R 7 (80rps)
For 30 min., of the start of IN-PROCESS INSPECTION INSPECTION OF TEMP.
JUDGEMENT
Normal or abnormality is displayed according to the range of drop of FCC
ALL FREEZER LED LIGHTING..........GOOD
ALL FREEZER LED BRINKING..........BAD
INSPECTION OF
ILLUMINANCE SENSOR
JUDGEMENT
During IN-PROCESS INSPECTION
After 1 min., of the start of IN-PROCESS INSPECTION.
Abnormality is judged according to variation width of input voltage of illuminance sensor.
ECONAVI LED EXTINCTION..........GOOD
ECONAVI LED LIGHTING...............BAD
Contents of discussion
< In-process inspection of illuminance sensor >
① ECONAVI LED blinks at the start of in-process inspection check whether ECONAVI LED blinks.
② ECONAVI LED lights up after 1 min., of the start of in-process inspection (because if there is less input variation,
microcomputer judge that as abnormal) check whether ECONAVI LED lights up.
③ Lighting of illuminance sensor shall be varied manually or automatically after the completion of aging. (If there is
input variation corresponding to a dark area and a bright area, microcomputer judges that as normal)
In Japan, a dark area and a bright area have been created in the place for inspection process.
④ As long as the illuminance sensor is normal, ECONAVI LED goes out check whether ECONAVI LED goes out.
- 7 -
NR-BY552 / NR-BY602
5. SELF PROTECTING FUNCTION
5.1 Protection for IC
1 Does IC receive IPM protect signal?
YES
2
IC orders to stop compressor for 10 min.
NO
• Normal operating.
3
After 10 min., does PCB check if IPM protect signal is normal?
NO
YES
4
IC cancels to stop compressor.
Normal operating?
5
After restarting, does “Stop compressor” occure 10 times within 2 min?
NO
6
IC cancels to stop compressor.
Normal operating?
8 Does system protection cycle for 333 times?
YES
9
IC order to stop compressor completely.
YES
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
7 After 1 hour.
SYSTEM PROTECT CONTROL CYCLE
1st time
OPERATE each 7min X 10 times COMPRESSOR 1hour STOP
SYSTEM PROTECT CONTROL CYCLE
333rd time
STOP COMPRESSOR
OPERATE each 7min X 10 times
- 8 -
NR-BY552 / NR-BY602
5.2 Protection for compressor locked
1
• After starting 2 sec., does IC detect
rpm < 5r/sec.?
• After starting from 2-10 sec., does PCB
detect rpm over 120r/sec.?
YES
2
IC orders to stop compressor for 10 min.
NO
• Normal operating.
3
IC cancels to stop compressor after 10 min.
4
After restarting, does “Stop compressor” occure 10 times within 2 min.?
YES
5
7
8
IC cancels to stop compressor.
Normal operating?
NO
Does system protection cycle for 333 times?
YES
IC order to stop compressor completely.
NO
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
6 After 1 hour.
SYSTEM PROTECT CONTROL CYCLE
1st time
OPERATE each 7min X 10 times COMPRESSOR 1hour STOP
SYSTEM PROTECT CONTROL CYCLE
333rd time
STOP COMPRESSOR
OPERATE each 7min X 10 times
- 9 -
NR-BY552 / NR-BY602
5.3 Protection for power supply droping
1
Does power supply voltage drop as condition
> 0.1 sec. and < 160V AC?
NO
YES
2
IC orders to stop compressor for 10 min.
• Normal operating.
3
After 10 min., does PCB check power supply voltage if it is > 180V AC?
NO
YES
4
IC cancels to stop compressor.
Normal operating?
5
After restarting, does “Stop compressor” occure 10 times within 2 min?
NO
6
IC cancels to stop compressor.
Normal operating?
YES
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
• IC continues to stop compressor until 1 hour.
• IC indicates Self Diagnosing sign.
7 After 1 hour.
- 10 -
NR-BY552 / NR-BY602
6. SELF DIAGNOSING FUNCTION
When abnormalist is cased in the refrigerator, the sign is displayed on LED as below chart.
How to use “Self Diagnosing” function
1. Opening PC door and FC door,
Push “Quick Freezing” bottom more than 5 sec.
2. After blinking at sec., each LED show as below.
3. “Self Diagnosing” function will be automatically
cancel after 7 min., from start operation.
“Freezer Control” button
“Quick Freezing” button
ECONAVI
LED
QUICK
LED
MAX
Lighting Blinking
FC CONTROL LED
MED MIN
Off
FCC
DFC
ATC
FC FAN MOTOR
DEFROST HEATER
INV COMP
PCB
HC LEAK (HIGH PRESSURE)
HC LEAK (LOW PRESSURE)
ILLUMINANCE SENSOR
- 11 -
NR-BY552 / NR-BY602
7. TEMPERATURE CONTROL
This refrigerator is special design for appropriate use, which can adjust the temperature level to details
“9 Levels” with the following details.
How to operate the “9 Levels” mode
1. Set LED display to “MIN” with the “Freezer Control” button.
2. Press the “Freezer Control” button (for 10 seconds) until the LED display return to show at “MIN” position.
3. Set “9 Levels” mode following below table by pressing the “Freezer Control” button.
To reset the setting “9 Levels” mode
Repeat step 1 & 2, then the refrigerator return to normal operation mode.
Cooling
Level
Step
Freezer
Control
LED
Display
Minimum
1 2 3 4 5
Cooling
Level
Step
Freezer
Control
LED
Display
Lighting
6
Blinking
7 8
Maximum
9
- 12 -
NR-BY552 / NR-BY602
8. INVERTER CONTROL DISPLAY
How to operate the “Quick Freezing” mode
￭
Quick Freezing
ON
Press the button “Quick Freezing”
(Blue light LED turns on)
150 MIN. “Quick Freezing” mode
OFF
The system will stop operating automatically when it runs for 150 min., and return to normal mode. (Blue light LED turns off)
Remarks
- If you want to stop the operation, press the button “Quick Freezing”.
- Blue light LED flashing means that the defrosting system is now working “Quick Freezing”
mode will start right after the defrosting operation is finished.
- Freezer temp. control does not operate during “Quick Freezing” mode.
(The compressor rotation is at the maximum level for “Quick Freezing” mode)
- 13 -
NR-BY552 / NR-BY602
9. REFRIGERATOR INSTRUCTION GUIDELINE
1. Do not open the refrigerator frequently or leave it open for a long time. This is to prevent water dripping
inside the refrigerator which will cause the waste of coolness and consumpting of energy.
2. Do not refrigerate unnecessary items or hard-to-rot foodstuff such as pumpkin, shallot, garlic, potato as it
will make the refrigerator to work over load and waste the storage space without necessity.
3. Adjust the temperature according to the actual operating condition for energy saving.
4. Do not refrigerate the bottles bigger than the door shelf or the tray as the door will not close completely,
which will cause the leakage of coolness.
5. Frequently check the door opening seal, it must be closed to the refrigerator’s body completely. Do not
leave the seal dirty or damaged or deteriorated as the coolness will leak and will cause the consumption
of the energy without necessity.
6. If you will not be at home for several days or there are nothing refrigerated in the refrigerator, the plug
should be disconnected for energy saving. In this case, clean the refrigerator and leave it half-open to
prevent bad odor.
7. Clean the drain tray located over the compressor at the back of the refirgerator every 3 months to prevent
the odor generated from humidity.
8. Energy saving dryer pipes and heating pipes embedded around the refrigerator cabinet are helping to
prevent “Condensation” on the outer surface of the cabinet without consuming energy. This will make the
outer wall of the refrigerator get warm and that is not a malfunction.
9. Drinking water bottles, beverage bottles such as soft drinks and fruit juices should be sealed closely to
prevent odor gets into the bottles.
Troubleshooting
Before calling for servicing, please check as follows.
The refrigerator does not operate.
* Check to be sure that the plug and its socket are in good conditions.
* Check that there is any problem on main fuse and electricity system in the house or not.
The cooling does not function properly.
* Check to be sure that the temperature control button is at the proper position.
* Check that the refrigerator is overloaded with stuff of there is any hot foodstuff refrigerated in it or not.
* Is the refrigerator located exposing directly to sunlight or heat source?
* Is the refrigerator door closed completely? Is the refrigerator opened frequently?
Vapor generated inside and outside the cabinet.
* The Vapor will generated outside the cabinet when the humidity is high (e.g. during rainy season) or the air
circulation is not good.
* If the vapor generated inside the cabinet, check that the door is completely closed or not. Is the refrigerator
frequently opened or left opened for a long time? Is there is any hot foodstuff refrigerated in it?
The refrigerator generates noise.
* Check if the refrigerator is located on a stable floor or is installed properly.
* Check if there is any object in contact with the refrigerator.
- 14 -
NR-BY552 / NR-BY602
10. TROUBLESHOOTING GUIDE
10.1 Not cool at all [ Both PC & FC (compressor does not operate) ]
NO
1
Does room light turn on?
YES
• Check power supply.
Ex. Connect power cord in inlet
Ex. Check ELCB
• Defect of over load relay.
Ex. Does fuse blow?
• Check control PCB.
Ex. Does fuse blow?
Ex. Defect of IC (IC205), Diode (BD201), etc.
2
Pushing PC door switch and room light turns off, and after release PC door switch, does room light turn on?
YES
NO
3
To start self diagnosing function by opening
PC door and FC door and pushing
“Quick Freezing” SW for 5 seconds.
4
Does “Econavi Led” and “Quick Freezing” blink?
NO
5
Does the “Econavi Led” turn on and
“Quick Freezing” blinking?
NO
YES
YES
• Defect of control PCB.
• Defect PC door switch.
• Defect of control PCB.
• Communication error between IC1 & IC201
6
Does the “Econavi Led” turn off and
“Quick Freezing” blink?
NO
YES
7
Does the “Econavi Led” turn off, “Quick
Freezing” turn off and “Freezer Control” LED
“MAX” blink?
YES
NO
8
Does the “Econavi Led” turn off, “Quick
Freezing” turn off and “Freezer Control” LED
“MIN” blink?
YES
NO
• Defect of control PCB.
• Abnormal connecting of compressor.
• Compressor lock.
• Chock.
• Leakage.
• Droping voltage of power supply.
• Rising voltage of power supply.
• Break FC thermistor.
• Poor connection between FC thermistor and
PCB.
• Gas leakage at high pressure side.
• Poor compression.
• Defect of control PCB.
• Gas leakage at low pressure side.
• Defect of control PCB.
• Faulty compressor motor.
• Compressor lock.
- 15 -
NR-BY552 / NR-BY602
10.2 Cool, not enough [ Both PC & FC (compressor operates) ]
To confirm when compressor is operating.
1
When FC door opens and FC door SW pushes, does cold air spout out from exhaust?
YES
NO
2
When PC door opens and PC door SW pushes, does cold air spout out from exhaust?
YES
NO
3
To start self diagnosing function by opening PC door and FC door and pushing “Quick Freezing” SW for 5 seconds.
4
4
5
7
9
Does “Econavi Led” and “Quick
Freezing” turn on?
NO
Does “Econavi Led” turn off and
“Quick Freezing” blinking?
NO
Does “Econavi Led” turn off and
“Quick Freezing” turn on?
NO
Does “Econavi Led” turn off and
“Quick Freezing” turn off?
NO
Does “Econavi Led” and “Quick
Freezing” blink?
NO
• Defect of FC fan motor.
• Poor connection between FC fan
motor and IC 1 on PCB.
• Defect of FC door SW.
• Defect of damper.
• Defect of PC door SW.
YES
• Defect of FC fan motor.
• Poor connection between FC fan
motor and IC 1 on PCB.
YES
YES
• Break of FCC thermistor.
• Poor connection between FCC
thermistor and IC 1 on PCB.
• Abnormal of spec of DFC thermistor.
* Resistor of thermistor is bigger as
like as 5.9 - 6.5 K
Ω at 0°C
6
Does thermal fuse blow out?
NO
• Short of DFC thermistor.
• Poor connection between DFC
thermistor and IC 1 on PCB.
YES
YES
• Break of DFC thermistor.
• Poor connection between FFC
thermistor and IC 1 on PCB.
8
Does thermal fuse blow out?
NO
• Break of DFC thermistor.
• Defect of PCB as like as defect of
relay, etc.
YES
• Termal fuse blows.
• Abnormal of spec of DFC thermistor.
* When resistor of thermistor is
bigger as like as 6.1 - 6.7K
Ω at 0°C,
there is some case to blow thermal
fuse out due to becoming defrost
time longer.
YES
• Defect of communication circuit and
EEPROM circuit of control PCB.
• Plug out and after 7 minute plug in
again.
- 16 -
NR-BY552 / NR-BY602
To confirm when compressor is operating.
NO
10
Does frost adhere to evaporator much?
NO
YES
11
Does the “Econavi Led” turn off, “Quick
Freezing” turn off and “Freezer Control”
LED “MAX” blinking?
NO
YES
12
Does the “Econavi Led” turn off, “Quick
Freezing” turn off and “Freezer Control”
LED “MIN” blinking?
YES
• Gap of door.
• Defect of control PCB.
• Gas leakage at high pressure side.
• Poor compression.
• Defect of control PCB.
• Gas leakage at low pressure side.
• Defect of control PCB.
- 17 -
NR-BY552 / NR-BY602
10.3 Eco-Navi operation doesn’t work
(PC/FC/IC cooling condition is normal)
1
Is the temperature control set to
{ 2 (Middle) } for FC?
YES
2
Does LED indicate “Econavi Led” or
“Quick Freezing” or “Freezer Control”
LED lighting and blinking?
NO
3
Does “Quick Freezing” function operating?
NO
NO
YES
YES
4
Is the FC temperature -17 °C or below?
YES
NO
5
Does “Freezer Control” LED turn on
MAX blink?
NO
YES
Unlit (ECO-NAVI)
6
Press “Freezer” button 5 seconds.
Turn off setting
• FC set to { 2 (Middle) }
• Some LED indicator is displayed on
the notice indicator area, ECO-NAVI
will not operate.
• Quick Freezing is operating,
ECO-NAVI will not operate.
• The internal temperature is high,
ECO-NAVI will not operate.
• Faulty operation panel PCB.
• Faulty control PCB.
• Faulty operation panel PCB.
7
It is normal (keep a wait and see)
If it meets the above condition, ECO-NAVI operation begins and the lamp lights when the door opening and closing is not done for 3 hours. (with some exceptions)
Test of ECO-NAVI operation. (Quickly confirms for turning on the { ECO-NAVI } lamp)
White in service mode, shield the sensing part of ECO-NAVI sensor from the light.
Keep 1 minute without door opening and closing to turn on the { ECO-NAVI } lamp.
Precondition : The refrigerator compartment and freezer compartment are set to { 2 (Middle) }.
- 18 -
NR-BY552 / NR-BY602
11. SCHEMATIC DIAGRAM
11.1 Wiring Diagram : NR-BY552XS, XW
- 19 -
11.2 Wiring Diagram : NR-BY602XS
NR-BY552 / NR-BY602
- 20 -
NR-BY552 / NR-BY602
12. DISASSEMBLY INSTRUCTION
12.1 LCD Cover
Locks
Fig. 1 Fig. 2
- Take off LCD cover by use screwdriver put between gaps of LCD cover with liner at the lock point as Fig. 1.
- Check the locks point by see at “Arrow Mark” as Fig. 2.
- Use screwdriver push up the LCD cover for lock loose.
Fig. 3 Fig. 4 Fig. 5
- After change LCD lamp or LCD cover, put LCD cover at one side (left or right) and set locks in position
as Fig. 3.
- Set LCD cover by see at the bottom of LCD cover as Fig. 4.
- Use hand hit carefully at LCD cover from the top pass to bottom as Fig. 5.
- 21 -
NR-BY552 / NR-BY602
12.2 Cover Control
Fig. 1 Fig. 2
- Take off Cover sheet at PC door by use cutter as Fig. 1.
- Take off screw at PC door by use screwdriver as Fig. 2.
- Push Cover control up and try to push it in front slowly for locks loose as Fig. 3.
Fig. 3
12.3 PCB Control
Fig. 1 Fig. 2 Fig. 3
- Take off Lead wire socket which contact at PCB control as Fig. 1.
- Take off screw at PCB control as Fig. 2.
- Use screwdriver push up PAS-Control for loosing from locks slowly and prevention crack as Fig. 3.
- 22 -
NR-BY552 / NR-BY602
12.4 Feature of Crisper
Fig. 1
- Explode part of Crisper As. as Fig. 1.
12.5 Maintain method : Take off Crisper handle
Fig. 2 Fig. 3 Fig. 4
- Actual part of Crisper handle as Fig. 2.
- Take off by use both thumbs press at buttons under Crisper handle for unlock (can hear 1 click each side)
as Fig. 3 and Fig. 4.
- 23 -
NR-BY552 / NR-BY602
Fig. 5 Fig. 6
- Both hands hold Crisper handle and press down (about 45 degree) for unlock as Fig. 5.
- Both hands hold Crisper handle and carry up for unlock as Fig. 6.
- After take off Crisper handle and remain new piece as Fig. 7.
Fig. 7
12.6 Maintain method : Crisper handle ass’y
HANDLE SUB AS.
SHAFT CRISPER
SPRING CRISPER
PIECE CRISPER HANDLE
Fig. 8
- Explode parts of Crisper handle as Fig. 8.
- To lock Spring crisper with Handle sub as. as Fig. 9.
SHAFT MUST BE ASS
’Y
CENTER
Fig. 9
Fig. 10 Fig. 11 Fig. 12
- To ass’y Shaft crisper from hole, left side through Spring crisper and finish at hole, right side as Fig. 10.
- To check Shaft crisper must be ass’y center as Fig. 11.
- Shaft crisper must be lock with hole complete as Fig. 12.
- 24 -
NR-BY552 / NR-BY602
Fig. 13 Fig. 14
- To check both hole of Piece crisper handle as Fig. 13.
- To carry up Handle sub as. with Spring crisper for ass’y lock as Fig. 14.
- To use finger with Spring crisper for ass’y lock with Piece crisper handle as Fig. 15.
Fig. 15
Fig. 16 Fig. 17 Fig. 18
- Must be checked inside of Crisper handle to lock complete before use Piece crisper handle double lock
(must be ass’y Piece crisper handle correct way as Fig. 16 & Fig. 17.
- To push down by both hands at Piece crisper handle for lock inside as Fig. 18.
Fig. 19 Fig. 20
- To push Crisper handle by both hands for lock it complete as Fig. 19.
- To check Crisper handle for lock complete as Fig. 20.
- 25 -
NR-BY552 / NR-BY602
13. PARTS EXPLODED VIEW AND REPLACEMENT PARTS LIST
13.1 Parts Exploded View : Body
5
6
3
4
1
2
8
7
16
15
32
33
11
9
10
14
13
11
12
20.1
20
21
19
18
22
31
34
30
36
35
39
38
37
40
48
41
23
47
42
43
44
46
45
53
24
25
28
29
26
49
50
51
52
27
54
55
- 26 -
NR-BY552 / NR-BY602
13.2 Parts Exploded View : Door
57
56
58
62
60
59
61
69
70
71
72
73
65
66
67
68
64
74
75
76
77
89
88
85
87
84
86
85
78
78
79
79
87
84
81
82
86
(For NR-BY552)
80
83
81
82
(For NR-BY602)
80
83
- 27 -
13.3 Parts Exploded View : Packing
STICKER BARCODE
PACKING BELT
(FOR PROTECT GLASS TRAY SLIDE)
MAX
MIN
INS. PC PAD 552
FOAM TOP PAD L, R
PLASTIC COVER
PROTECTOR DOOR AS.
SHEEL SIDE PAD
BOTTOM TRAY AS.
INS. PC PAD 602
- 28 -
NR-BY552 / NR-BY602
NR-BY552 / NR-BY602
Important safety notice :
Components identified by mark have special characteristics important for safety.
When replacing any of these components, use only manufacturer’s specified part.
13.4 Replacement Part List : NR-BY552XS, XW / NR-BY602XS
Parts List
REF. NO.
1
25
26
27
28
21
22
23
24
29
30
31
32
33
15
16
18
19
20
20.1
9
10
11
12
7
8
5
6
13
14
2
3
4
34
35
36
37
PART NAME
COVER HINGE TOP - XS
COVER HINGE TOP - XW
HINGE TOP
PAS-BW/BY (LED PCB)
COVER LED LAMP R
COVER LED LAMP L
GLASS TRAY TS AS.
GLASS TRAY T AS.
GLASS TRAY CRISPER AS.
CRISPER AS.
GLASS TRAY CHILLED AS.
CHILLED CASE
DOOR SW.
CASE SW. FC - W
HINGE CENTER
CASTER L AS.
CASTER R AS.
CAP PAN H. 4TS (ST)
CAP PAN H. 4TS (W)
SENSOR DEF.
COIL
TEMP. FUSE AS.
SENSOR FCC
COVER RADIANT
HEATER AS. DEFROST
INS. COVER COIL F
COVER COIL
PLATE FC
CASE FCT
CASE FCB AS.
ICE CUBE TRAY AS.
BOX ICE TRAY
HOLDER ICE TRAY
HANGER SHELL R
HANGER SHELL L
LABEL HC BACK
WIRING DIAGRAM
PAN WATER EVA. AS.
CLAMP PIPE WATER EVA.
PAS-BY602X (CONTROL)
PART. NO.
CNRAH-269291
CNRAH-269301
CNRAH-297820
CNRAH-293810
CNRAH-293820
CNRAH-293830
CNRAH-293840
CNRAH-293850
CNRAH-293860
CNRAH-293870
CNRAH-293890
CNRAH-293720
CNRAH-293730
CNRAH-293740
CNRAH-293750
CNRAH-293760
CNRAH-293770
CNRAH-293780
CNRAH-293790
CNRAH-293800
CNRBF-150371
CNRAF-175252
CNRBG-182680
CNRAE-139331
CNRAE-140950
CNRAE-139022
CNRBG-181511
CNRAH-291582
CNRAH-290283
CNRBH-139562
CNRBH-138623
CNRBH-138873
CNRBH-138642
CNRBH-138880
CNRAH-261152
CNRAG-153290
CNRAC-201540
CNRAE-139010
CNRBC-324010
CNRBC-324020
CNR39-162720
CNR39-162431
CNRAG-140111
CNRAF-177440
CNRBG-180841
CNRAG-164250
CNRAG-163050
CNRAG-163041
CNRAF-177452
CNRAF-177372
CNRAH-261411
CNRAH-261171
CNRBH-138860
CNRBH-135250
CNRAH-227460
CNRAH-261194
CNRAC-206002
CNRAC-206012
SAFETY
S
S
S
S
S
S
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
XS
1
MODEL / Q’TY
BY552 BY602
XW XS
1
2
1
1
1
1
1
3
1
2
1
1
1
1
1
1
2
1
1
1
1
3
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SIDE : RIGHT
SIDE : LEFT AND UPPER
SIDE : LEFT
SIDE : RIGHT
REMARK
SIDE : RIGHT
SIDE : LEFT
LANGUAGE : ENGLISH
LANGUAGE : THAI
FOR XSTH
FOR XSMY
FOR XSSG
FOR XS1D
FOR XSVN
FOR XS1N
FOR XSAU/NZ
FOR XSPH
FOR XWAU/NZ
FOR XSTH
FOR XSMY
FOR XSSG
FOR XS1D
FOR XSVN
FOR XS1N
FOR XSPH
FOR XSAE
FOR XSWG
- 29 -
Parts List
78
79
80
81
82
83
84
85
86
74
75
76
77
58
59
60
61
62
63
64
65
66
67
68
69
70
71
55
56
57
50
51
52
53
54
46
47
48
49
42
43
44
45
REF. NO.
38
39
40
41
PART NAME
REACTOR
RUBBER REACTOR
COVER CASE BOARD (GI)
SUPPLY CORD AS. - S3P
SUPPLY CORD AS. - C2P
SUPPLY CORD AS. - B3P
SUPPLY CORD AS. - K3P
SUPPLY CORD AS. - A2P
SUPPLY CORD AS. - C3P
SUPPLY CORD AS. - C2P (SHUKO)
HEXAGON NUT 8
SPRING WASHER 8
8 WASHER
COMPRESSOR EFI100E13DGH
MOTOR PROTECTOR
PROTECTOR COVER
EARTH WIRE AS. COMP. 230
5 DRYER W
RUBBER GROMMET
CLAMPER DRYER
CROSSRAIL REAR
SLEEVE COMP.
PIN CASTER
ROLLER 40
FAN MOTOR FC
INS. DUCT PC
PLATE DUCT PC
PLATE DUCT PCB
LED KIBAN (VC)
COVER VC LED
AG BIO FILTER
PIECE DUCT PC
CONTROL PANEL AS.
INS. CONTROL PANEL PCB
BAFFLE DAMPER THERMO AS.
INS. CONTROL PANEL PCF
CONTROL PANEL
GASKET DOOR PC
72
73
EMBLEM
DOOR AS. PC (FOAM) - XS
DOOR AS. PC (FOAM) - XW
DOOR AS. PC (FOAM) - XS
PAS-CONTROL (DOOR)
COVER CONTROL (SUB) AS. BY552
COVER CONTROL (SUB) AS. BY602
LATCH DOOR
STOPPER DOOR
GASKET DOOR FC
DOOR AS. FC (FOAM) - XS
DOOR AS. FC (FOAM) - XW
SHELF EGG
TRAY EGG 10
SHELF PC R
SHELF PC L
SLIDE STOPPER BOTTLE
SHELF BOTTLE
FRAME AS. FC R
FRAME AS. FC L
SUPPORT REAR
PART. NO.
SAFETY
CNR01-249530
CNR39-163082
CNRAF-177400
CNRAJ-112932
CNR02-325701
CNRAC-116280
CNRAG-145641
CNRAH-261251
CNRAH-261241
CNRAH-261212
CNRAH-261202
CNRAH-261223
CNRAG-163022
CNRAH-261301
CNRAH-245521
CNRAH-261460
CNRBH-145150
CNRBG-165910
CNRAF-156140
CNRAC-214821
CNRBG-176222
CNRBG-172281
CNRBG-172271
CNRBG-185900
CNRBG-172291
CNRBG-170952
CNRBG-176610
CNR38-8170A1
CNR38-4270A0
CNR38-4170A0
CNR91-236420
CNR06-598070
CNRAG-170460
CNRBG-156650
CNR39-340920
CNRAH-261291
CNRBG-184010
CNRAH-261282
CNRAH-261231
CNRAD-330972
CNRAD-330962
CNRAD-330991
CNRBD-365781
CNRBD-365792
CNRBD-365771
CNRBG-182670
CNRBG-182660
CNRBD-374340
CNRBD-374880
CNRBD-374330
CNRAE-136513
CNRAD-335500
CNRAD-330981
CNRBD-365720
CNRBD-365730
CNRAD-330772
CNRAD-338110
CNRAD-330711
CNRAD-330701
CNRAD-330941
CNRAD-330693
CNRBD-340671
CNRBD-340661
CNRAD-330951
S
S
S
S
S
S
S
S
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
2
1
1
1
1
1
2
2
1
1
4
1
1
2
1
1
1
1
1
2
2
1
1
2
2
2
1
1
1
XS
1
2
1
1
1
1
MODEL / Q’TY
BY552 BY602
XW
1
2
1
XS
1
2
1
1
1
1
1
2
2
2
1
2
1
1
2
2
1
1
1
1
1
4
1
1
2
2
2
1
1
1 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1 1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
1
1
1
3
1
1
1
2
1
1
1
1
XSMY, XSSG, XSAE
XS1D, XSVN
XS1N
XSAU/NZ, XWAU/NZ
XSPH
XSTH
XSWG
REMARK
NR-BY552 / NR-BY602
- 30 -
NR-BY552 / NR-BY602
Parts List
REF. NO.
87 LABEL NAME
PART NAME
88
89
UTILITY BOX
COVER UTILITY BOX
Packing List
REF. NO.
PART NAME
PACKING AS.
BOTTOM TRAY AS.
PLASTIC COVER
TOP PAD R
TOP PAD L
INS. PC PAD 552
INS. PC PAD 602
SHELL SIDE PAD
PROTECTOR DOOR AS.
INSTRUCTION BOOK
CNRAH-297790
CNRAH-293540
CNRAH-293550
CNRAH-293560
CNRAH-293570
CNRAH-293580
CNRAH-293590
CNRAH-293600
CNRAH-293620
CNRAH-293450
CNRAH-293460
CNRAH-293470
CNRAH-293480
CNRAH-293490
CNRAH-293500
CNRAH-293510
CNRAH-293520
CNRAH-293530
CNRAD-354431
CNRAD-354441
PART. NO.
SAFETY
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
1
1
1
1
1
1
1
1
XS
MODEL / Q’TY
BY552 BY602
XW XS
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
FOR XSTH
FOR XSMY
FOR XSSG
FOR XS1D
FOR XSVN
FOR XS1N
FOR XSAU/NZ
FOR XSPH
FOR XWAU/NZ
FOR XSTH
FOR XSMY
FOR XSSG
FOR XS1D
FOR XSVN
FOR XS1N
FOR XSPH
FOR XSAE
FOR XSWG
REMARK
PART. NO.
SAFETY
CNRBK-127640
CNRBK-127650
CNRBK-127660
CNRBK-119721
CNRAJ-162080
CNRAJ-162070
CNRAK-141801
CNRAK-141792
CNRAK-153040
CNRAK-153030
CNRAK-142810
CNRBK-117320
CNRAK-157170
CNRAK-157180
CNRAK-157190
CNRAK-157200
CNRAK-157210
CNRAK-157220
CNRAK-157240
CNRAK-157250
CNRBK-129600
CNRBK-127670
CNRBK-127680
CNRBK-127690
CNRBK-127700
CNRBK-127710
CNRBK-127720
CNRBK-127730
CNRBK-127750
CNRBK-127580
CNRBK-127590
CNRBK-127600
CNRBK-127610
CNRBK-127620
CNRBK-127630
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
XS
1
1
MODEL / Q’TY
BY552 BY602
XW XS
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
1
1
1
1
1
2
2
1
1
1
1
1 1
FOR XSTH
FOR XSMY
FOR XSSG
FOR XS1D
FOR XSVN
FOR XS1N
FOR XSAU/NZ
FOR XSPH
FOR XWAU/NZ
FOR XSTH
FOR XSMY
FOR XSSG
FOR XS1D
FOR XSVN
FOR XS1N
FOR XSPH
FOR XSAE
FOR XSWG
REMARK
SIDE : RIGHT
SIDE : LEFT
FOR PROTECT GLASS TRAY SLIDE
FOR PROTECT GLASS TRAY SLIDE
FOR BOTH SIDE
FOR XSTH
FOR XSMY
FOR XSSG , XSPH
FOR XS1D
FOR XSVN
FOR XS1N
FOR XSAE, XSWG
FOR XSAU/NZ, XWAU/NZ
- 31 -
NR-BY552 / NR-BY602
DETAIL CHANGE NOTICE
REVISION ITEM NO.
PAGE
JAN. 2012 1 4
FEB. 2012
2
1
29 - 31
26, 29
DETAIL
ADD THAILAND MODEL
ADD PART NAME & NO. AND Q’TY
ADD SENSOR FCC
REMARK
FOR MODEL : NR-BY552XS
FOR MODEL : NR-BY552XSTH
ADD PICTURE, PART NAME & NO.
- 32 -
