Panasonic NR-BW414MN Manual de usuario

Order No. PHAT090301C3

(Revision : Nov. 2012)

Service Manual

Refrigerator

NR-BW414MN, NR-BW414SS, NR-BW414SN, NR-BW414SW

NR-BW414VS, NR-BW414XN / NR-BW464VS, NR-BW464XN

Product Colour

Silver (SL)

Champagne (SN)

Stainless (ST)

Destination

Malaysia, Hong Kong

Singapore, India, Vietnam

RBD, Indonesia, Philippines

PGF, GULF (Gen)

distribution is a violation of law.

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.

IMPORTANT SAFETY NOTICE

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.

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.

NR-BW414MN

NR-BW414SS

NR-BW414SN

NR-BW414SS

NR-BW414SW

(WG, AE)

NR-BW414VS

NR-BW414XN

NR-BW464VS

NR-BW464XN

CONTENT

Page

14~15

20~22

23~26

30~34

1. Safety Cautions for Repairing

1.1 Warning

1.2 Caution

2. Specification and Components

2.1 NR-BW414SS, NR-BW414MN, NR-BW414VS, NR-BW414XN

2.2 NR-BW464VS, NR-BW464XN

3. Performance Data

3.1 NR-BW414MN, NR-BW414SS, SN, SW

3.2 NR-BW414VS, NR-BW414XN

3.3 NR-BW464VS, NR-BW464XN

4. Self Protecting Function

4.1 Protection for IC

4.2 Protection for compressor locked

4.3 Protection for power supply droping

5. Self Diagnosing Function

6. Temperature Control

7. Refrigerator Instruction Guidelines

8. Troubleshooting Guide

8.1 Not cool at all [ Both PC and FC (compressor does not operate) ]

8.2 Cool, not enought [ Both PC and FC (compressor operates) ]

9. Schematic Diagram

9.1 Wiring Connection : NR-BW414MN, NR-BW414SS, SN, SW

9.2 Wiring Connection : NR-BW414VS, NR-BW414XN, NR-BW464VS, NR-BW464XN

10. Disassembly Instruction

10.1 Cover Control

10.2 PAS Control

11. Repairing Procedure

12. Technical Information

12.1 NR-BW414MN, NR-BW414SS, SN, SW (Non Inverter)

12.2 NR-BW414VS, NR-BW414XN, NR-BW464VS, NR-BW464XN (Inverter)

13. Parts Exploded View and Replacement Parts List

13.1 Parts Exploded View : Body

13.2 Parts Exploded View : Door

13.3 Parts Exploded View : Packing

13.4 Replacement Parts List

Detail Change Notice

NR-BW414 / NR-BW464

- 2 -

1. SAFETY CAUTIONS FOR REPAIRING

NR-BW414 / NR-BW464

- 3 -

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 transportation, adjust the bolt

• Otherwise, the floor may be damaged.

Do not touch the pipe after brazing

• Otherwise, your hands may be burnt.

2. SPECIFICATION AND COMPONENTS

Specification

NR-BW414 / NR-BW464

- 4 -

418L

(FC : 81, PC : 249)

675 x 695 x 1629 (mm.) [ W x D x H ]

FC : Electronic control (PCB)

PC : Baffle damper thermostat

Full-automatic heater defrost with a timer

Level 5

PCM colour - (Polyester paint coating / Polyester paint steel)

Vacuum Formed ABS resin

Polyurethane foam (cabinet and door)

330L

(FC : 130, PC : 288)

64 Kg.66 Kg.

Capacity

(Total Gross Volume)

Capacity

(Total Storage Volume)

External Dimension

Net Weight (Kg.)

Temperature Control

Defrosting

Freezer Rating

Exterior Finish

(Cabinet /Door)

Inner Liner

Insulation

Sealed Unit

EFI100E13DGH-COECS

Wrapper Type (Concealed condenser)

Fin Tube Type

R600aHFC-134a

60 ± 5g150 ± 5g

R215 ± 5ml (freol S -10)280 ± 5ml (freol S - 10)

DG77C14RAW5-L2ZAS

(DHS73C10RAW FOR MALAYSIA AND INDIA MODEL)

Compressor

(Winding resistance at 20˚C)

Evaporator

Condenser

Refrigerant Type

Charge

Oil Charge

Electric Part

DC 14V / 1.54W

250V / 0.5a

Ø 90mm. prop fan (Box Type)

NTC

B = 3819K ± 2%

R10 = 3.899KΩ± 3%

NTC

250V / 10A / 73˚C

B = 3850K ± 2%

R20 = 18.9KΩ± 1.8%

D3D-121 (S.P. - S.T.)

E14 / 22, 240V / 10WE14 / 22, 240V / 15W

No usePTH7M330MD2

PAS - B41MV4PAS - B37M4

MM6-8V34 230V / 176WMM6-4343 220V / 183W

MM3-20DCW5TM232NHBYY-53

No use4µF - 400V

(1) Ambient Temp. over 34˚C 8h(1) Ambient Temp. over 34˚C 7h

(2) Ambient Temp. 23˚C ~ 33˚C 8h(2) Ambient Temp. 23˚C ~ 33˚C 7h

(3) Ambient Temp. under 22˚C 13h(3) Ambient Temp. under 22˚C 13h

(4) Power ON 4h add(4) Power ON 6h add

DC 9V / 1.53W

Door Switch

Fan Motor

PTC Relay

Fan Blade

Type

Rating

Type

Rating

Defrost Sensor

(DFC)

Type

Rating

FC Sensor

(FCC)

Defrost Thermal Fuse

Type

Rating

Control Board

Defrost Timer

(Electronic PCB Control)

Defrost Heater

Overload Protector

Running Capacitor

2.1 NR-BW414SS, NR-BW414MN, NR-BW414VS, NR-BW414XN

PCM PCM Stainless PCM Stainless

MY HK 1N 2N VN WA WG MYAE WG AE HK VN MY MY PH 1N VN MY SG VN 1DWA 1D

S3P S3P B3P C2P C2P

C2P

(SHUKO)

S3PS3P

C2P

(SHUKO)

S3P S3P C2P S3P S3P A2P B3P C2P S3P S3P C2P C2PC2P C2P

240V 220V 230V 220V 220~

240V

220~

240V 240V

220~

240

220~

240V

220~

240V 220V 220V 240V 240V 230V 230V 220V 240V 230V 220V 220~

240V

220~

240V

220~

240V

Malaysia

Hong Kong

India

Vietnam

RBD PGF MalaysiaGULF PGF GULF

Hong Kong

Vietnam

Malaysia Malaysia

Philippines

India

Vietnam

Malaysia

Singapore

Vietnam

Indonesia

RBD

Indonesia

NR-BW414SS

NR-BW414SN

NR-BW414SW NR-BW414MN NR-BW414VS NR-BW414XNMODEL

Destination

Code Attached Model

Material Spec.

Plug

Power Source

NR-BW414 / NR-BW464

- 5 -

Specification

(Total Gross Volume)

Capacity 463L

(FC : 130L, PC : 333L)

372L

(FC : 81L, PC : 291L)

675 x 695 x 1769 (mm.) [ W x D x H ]

67 Kg.

FC : Electronic control (PCB)

PC : Baffle damper thermostat

Full-automatic heater defrost with a timer

3 stars

Vacuum Formed ABS resin

Polyurethane foam (cabinet and door)

PCM colour (Polyester paint coating) Stainless Steel

Capacity

(Total Storage Volume)

External Dimension

Net Weight (Kg.)

Temperature Control

Defrosting

Freezer Star Rating

Exterior Finish (Cabinet / Door)

Inner Liner

Insulation

Sealed Unit

(Winding resistance at 20˚C)

Compressor EFI100E13DGH-COECS

Fin Tube Type

Wrapper Type (Concealed condenser)

R600a

60 ± 5g

215 ± 5ml (freol S - 10)

Evaporator

Condenser

Refrigerant Type

Charge

Oil Charge

Electric Part

Door Switch D3D-121 (S.P. - S.T.)

250V / 0.5A

Ø 90 mm. prop fan (Box Type)

DC 14V / 1.54W

E14 / 22, 240V / 10W

No use

MM6-8V34, 230V / 176W

MM3-20DCW

No use

NTC

B = 3819K ± 2%

R10 = 3.899KΩ± 3%

NTC

B = 3850K ± 2%

R20 = 18.9KΩ± 1.8%

250V / 10A / 73˚C

PAS - B41MV4

(1) Ambient Temp. over 34˚C 8h

(2) Ambient Temp. 23˚C ~ 33˚C 8h

(3) Ambient Temp. under 22˚C 13h

(4) Power ON 4h add

Fan Motor

Fan Blade

PTC Relay

Type

Rating

Type

Rating

Type

Rating

Control Board

Defrost Timer

(Electronic PCB Control)

Defrost Heater

Motor Protector

Running Capacitor

Defrost Sensor (DFC)

Type

Rating

FC Sensor (FCC)

Defrost Thermal Fuse

2.2 NR-BW464VS, NR-BW464XN

MODEL NR-BW464XNNR-BW464VS

Destination Malaysia Hong Kong India Vietnam RBD Philippines Indonesia Malaysia Hong Kong Singapore Vietnam Indonisia

MY HK 1N VN WA PH 1D MY HK SG VN 1D

S3P S3P B3P C2P

PCM

C2P A2P C2P S3P S3P S3P

Stainless

C2P C2P

240V 220V 230V 220V 220~240V 230V 220~240V 240V 220V 230V 220~240V 220~240V

Code Attached Model

Material Spec.

Plug

Power Source

NR-BW414 / NR-BW464

- 6 -

3. PERFORMANCE DATA

3.1 NR-BW414MN, NR-BW414SS, SN, SW

Mean Fresh Food Compartment Temperature

Mean Freezer Load Temperature

(°C)

t3 (°C)

Vegetable Crisper Temperature

PC Door Shelf Upper Temperature

(°C)Egg Tray Temperature

PC Door Shelf Bottom Temperature

1.0 ± 2.5 4.0 ± 2.5 7.0 ± 2.5

-23.5 ± 2.5 -20.0 ± 2.5 -15.0 ± 2.5

Running Ratio (%) 75 ± 15 60 ± 15

Power Consumption (KWh/Day) 2.1

45 ± 15

7.0 ± 2.5

5.5 ± 2.5

- 6.0 ± 2.5 -

“ 3 ”Thermostat Dial Setting “ 2 ” “ 1 ”

3.2 NR-BW414VS, NR-BW414XN

Mean Fresh Food Compartment Temperature

Mean Freezer Load Temperature

(°C)

t3 (°C)

Vegetable Crisper Temperature

PC Door Shelf Upper Temperature

(°C)Egg Tray Temperature

PC Door Shelf Bottom Temperature

1.0 ± 2.5 3.5 ± 2.5 7.0 ± 2.5

-22.0 ± 2.5 -19.5 ± 2.5 -15.0 ± 2.5

Running Ratio (%) 85 ± 15 75 ± 15

Power Consumption (KWh/Day) 1.8

60 ± 15

7.0 ± 2.5

4.5 ± 2.5

- 5.0 ± 2.5 -

“ 3 ”Thermostat Dial Setting “ 2 ” “ 1 ”

3.3 NR-BW464VS, NR-BW464XN

Mean Fresh Food Compartment Temperature

Mean Freezer Load Temperature

(°C)

t3 (°C)

Vegetable Crisper Temperature

PC Door Shelf Upper Temperature

(°C)Egg Tray Temperature

PC Door Shelf Bottom Temperature

1.0 ± 2.5 4.0 ± 2.5 7.0 ± 2.5

-22.0 ± 2.5 -19.5 ± 2.5 -16.0 ± 2.5

Running Ratio (%) 85 ± 15 75 ± 15

Power Consumption (KWh/Day) 1.8

65 ± 15

4.0 ± 2.5

8.0 ± 2.5

4.5 ± 2.5

- 5.0 ± 2.5 -

“ 3 ”Thermostat Dial Setting “ 2 ” “ 1 ”

NR-BW414 / NR-BW464

- 7 -

4.1 Protection for IC

1Does IC receive IPM protect signal?

2IC orders to stop compressor for 10 min.

3After 10 min, does PCB check if IPM protect signal

is normal?

4IC cancels to stop compressor. Normal operating.

5After restarting, does “Stop compressor” occure 10

times within 2 min?

6IC cancels to stop compressor. Normal operating.

8Does system protection cycle for 333 times?

9IC orders to stop compressor completely.

YES

• Normal operating.

• IC continues to stop compressor until 1 hour.

• IC indicates Self diagnosing sign.

YES

7After 1 hour.

SYSTEM PROTECT CONTROL CYCLE

1st time

OPERATE each 7min X 10 times

COMPRESSOR 1hour STOP

OPERATE each 7min X 10 times

SYSTEM PROTECT CONTROL CYCLE

333rd time

STOP COMPRESSOR

• IC continues to stop compressor until 1 hour.

• IC indicates Self diagnosing sign.

4. SELF PROTECTING FUNCTION

NR-BW414 / NR-BW464

- 8 -

4.2 Protection for compressor locked

• After starting 2 sec., does IC detect rpm <5r/sec>?

• After starting from 2 ~ 10 sec., does PCB detect

rpm over 120r/sec?

2IC orders to stop compressor for 10 min.

3IC cancels to stop compressor after 10 min.

4After restarting, does “Stop compressor” occure 10

times within 2 min?

5IC cancels to stop compressor. Normal operating.

7Does system protection cycle for 333 times?

8IC orders to stop compressor completely.

YES

SYSTEM PROTECT CONTROL CYCLE

1st time

OPERATE each 7min X 10 times

COMPRESSOR 1hour STOP

OPERATE each 7min X 10 times

SYSTEM PROTECT CONTROL CYCLE

333rd time

STOP COMPRESSOR

YES

• Normal operating.

• IC continues to stop compressor until 1 hour.

• IC indicates Self diagnosing sign.

6After 1 hour.

NR-BW414 / NR-BW464

- 9 -

4.3 Protection for power supply droping

1Does Power supply voltage drop as condition >0.1

sec., and <160V AC?

2IC orders to stop compressor for 10 min.

3After 10 min, does PCB check power supply voltage

if it is > 180V AC?

4IC cancels to stop compressor. Normal operating.

5After restarting, does “Stop compressor” occure 10

times within 2 min?

6IC cancels to stop compressor. Normal operating.

YES

7After 1 hour.

YES

• Normal operating.

• 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.

NR-BW414 / NR-BW464

- 10 -

How to use “Self diagnosing function”

1. Opening PC door and FC door, push

“Quick Freezing” bottom more than 5 sec.

2. Blinking LED of “Energy Saving” and “Quick

Freezing” during 3 sec.

3. After blinking at 3 sec., each LED show as below.

4. “Self diagnosing function” will automatically

cancel after 7 min., from start operation.

Energy Saving

Symptom Details of symptom Energy

Saving LED

Quick

Freezing LED

Freezer

Control LED

Normal None None None

Abnormal of FCC thermistor Break/short of FCC thermistor None Blinking None

Abnormal of DFC thermistor Break/short of DFC thermistor None Turn on None

Abnormal of ATC thermistor Break/short of ATC thermistor Blinking Turn on None

Abnormal of FC fan motor Break/lock of FC fan motor

Abnormal revolution of FC fan motor

Turn on Turn on None

Abnormal of Defrost heater in FC Break/short of Defrost heater Turn on None None

Abnormal of INV compressor Operate protector of IPM lock

Operate protector of voltage dropping

Operate protector of over voltage

Turn on Blinking None

Abnormal of PCB Error of communication

Error of EEPROM

Blinking Blinking None

Refrigerating unit trouble Gas leakage at high pressure side

poor compression

None None MAX blinking

Refrigerating unit trouble Gas leakage at low pressure side None None MIN blinking

Quick Freezing

Freezer Control

When abnormalist is cased in the refrigerator, the sign is display on LED

as below chart.

5. SELF DIAGNOSING FUNCTION

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