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Order No. PAPTH120404CE

(Revision : Jan. 2013)

Service Manual

Refrigerator

NR-BU303MNHK
NR-BU343MNHK
NR-BU343MNX1
NR-BU303SNHK
NR-BU343SNHK
NR-BU343SNX1

Product Colour

Clear Stainless Silver (MN/S)

Champagne (SN/N)

Destination

Hong Kong, India

© Panasonic Appliances (Thailand) Co., Ltd. 2013.
All rights reserved. Unauthorized copying and
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.

Summary of Contents for NR-BU303MNHK

Page 1: ...ut 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 experien...

Page 2: ... 2 2 NR BU343 SERIES 3 Schematic Diagram 4 Performance Data 5 Troubleshooting Guide 6 Disassembly Instruction 6 1 Led Cover 6 2 Plate Duct PCT 7 Parts Exploded View and Replacement Parts List 7 1 Part Exploded View Body 7 2 Part Exploded View Door 7 3 Part Exploded View Packing 7 4 Replacement Parts List NR BU303 NR BU343 Detail Change Notice NR BU303 BU343 ...

Page 3: ...ast 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 Watc...

Page 4: ...n Net Weight 1 Ambient temp over 33 C 8 5h 2 Ambient temp 25 C 33 C 8 5h 3 Ambient temp under 16 C 16h 401405L 4 µF 400V 5TM189MFBYY 53 PTH7M330MD2 4 Power on 4h Rated time 220V 150W Vacuum formed ABS resin Cabinet and door Cyclopentane DSD421 21 Cabinet and door 52 Kg Sealed Unit Compressor Evaporator Condenser Refrigerant Lubricating Oil Fin and tube type Single wall steel tube Zinc coat R 600a ...

Page 5: ... Weight 1 Ambient temp over 33 C 8 5h 2 Ambient temp 25 C 33 C 8 5h 3 Ambient temp under 16 C 16h 401405L 4 µF 400V 5TM189MFBYY 53 PTH7M330MD2 4 Power on 4h Rated time 220V 150W Vacuum formed ABS resin Cabinet and door Cyclopentane DSD421 21 Cabinet and door 53 5 Kg Sealed Unit Compressor Evaporator Condenser Refrigerant Lubricating Oil Fin and tube type Single wall steel tube Zinc coat R 600a 55 ...

Page 6: ... 6 3 SCHEMATIC DIAGRAM 3P NR BU303 BU343 ...

Page 7: ... 28 0 2 5 19 5 2 5 9 0 2 5 Running Ratio 85 0 15 4 0 2 5 1 8 or under 35 0 15 60 0 15 5 0 2 5 5 0 2 5 3 PC FC 2 1 3 2 1 4 4 NR BU343 SERIES Other Control Setting Mean Fresh Food Compartment Temperature Mean Freezer Load Temperature C C C kWh 24 hrs C t3 C Vegetable Case Temperature PC Door Shelf Upper Temperature PC Door Shelf Bottom Temperature Power Consumption Under on load and ambient temperat...

Page 8: ...sure of the motor compressor by ohmmeter Rip Burn coil Check oil color of the compressor Clean the pipe according to guidance Check the fan motor circuit Clogged moisture Gas leakage Check the gas smell Defect compressor Clogged in the cap tube system at the evaporator side Clogged in the cap tube system at the dryer side Cutting cap tube out of the dryer side Technical Guide Order No TECH091119TG...

Page 9: ...small screwdriver push up the Led cover for lock loose Change Led lamp by take off at Lead wire connection as Fig 2 After change Led cover or Led lamp put Led cover at the top side and slide up in lock position as Fig 3 Use hand hit carefully at the right side of Led cover from the top pass to bottom as Fig 4 Fig 1 Fig 2 Fig 3 Fig 4 NR BU303 BU343 ...

Page 10: ...pen at the screw hole cover as Fig 1 Take off screws at the Plate duct PCT as Fig 2 Take off screws at the Plate duct PCB and Plate duct PC as Fig 3 At first take off at the Plate duct PC as Fig 4 After that take off at the Plate duct PCB and other parts as Fig 5 NR BU303 BU343 ...

Page 11: ...EPLACEMENT PARTS LIST 7 1 Parts Exploded View Body 1 2 9 11 8 12 13 37 28 6 7 10 14 5 4 3 38 29 36 35 31 33 32 34 39 40 41 48 49 50 47 42 43 44 45 46 51 52 30 17 18 19 22 24 23 27 15 20 21 26 25 NR BU303 BU343 16 3 TURN 1N 2 TURN HK ...

Page 12: ... 12 7 2 Parts Exploded View Door 64 65 66 67 68 69 69 70 68 53 54 75 72 73 74 71 56 55 62 58 57 63 59 60 61 72 73 74 71 NR BU303 BU343 FOR NR BU303 SERIES ...

Page 13: ... 13 7 3 Parts Exploded View Packing PACKING BELT FOAM TOP PAD L R PLASTIC COVER BOTTOM TRAY AS STICKER BARCODE STICKER MODEL NAME TOP PAD BACK TOP PAD FRONT PAPER PROTECTOR FRONT NR BU303 BU343 ...

Page 14: ...3290 COIL AS 1N 16 CNRBF 155773 1 CNRAG 168580 1 1 1 1 1 1 1 1 S S S S 1 1 COIL 2 TURN MNX1 COIL AS HK CNRBF 155903 1 TEMP FUSE AS 17 CNRBG 180841 COVER RADIANT 18 CNRAG 167241 HEATER AS DEFORST 19 CNRAG 167234 COVER COIL 20 CNRAF 183034 INS COVER COIL 21 CNRAF 183101 1 HOLDER ICE TRAY AS 22 CNRBH 141910 1 ICE CUBE TRAY AS 23 CNRBH 135250 1 BOX ICE TRAY 24 CNRAH 227460 1 CASE FCT 25 CNRAH 275430 1...

Page 15: ... CNRAH 275581 GASKET DOOR PC 64 CNRAD 349381 CNRAD 349371 EMBLEM 65 CNRAD 339801 1 DOOR AS PC FOAM MN DOOR AS PC FOAM MN DOOR AS PC FOAM MN DOOR AS PC FOAM SN DOOR AS PC FOAM SN DOOR AS PC FOAM SN 66 CNRBD 381250 1 CNRBD 381240 CNRBD 381241 CNRBD 381282 1 LATCH DOOR 67 CNRAE 136513 1 STOPPER DOOR 68 CNRAD 305832 1 GASKET DOOR FC 69 CNRAD 344501 1 DOOR AS FC FOAM MN DOOR AS FC FOAM SN 70 CNRBD 3812...

Page 16: ...ARK MODEL Q TY NR BU303 NR BU343 PACKING AS MN PACKING AS MN PACKING AS MN PACKING AS SN PACKING AS SN PACKING AS SN CNRBK 131630 CNRBK 134780 CNRBK 134800 CNRBK 131620 CNRBK 134510 CNRBK 134530 MNX1 MNHK SNX1 SNHK SNHK MNHK SNHK MNHK 1 1 PLASTIC COVER CNRAJ 162100 CNRAJ 162110 1 1 1 1 1 1 BOTTOM TRAY AS CNRBK 121245 1 1 TOP PAD L CNRAK 147970 1 1 TOP PAD R CNRAK 147960 1 1 TOP PAD F CNRAK 148000 ...

Page 17: ... PAGE NO AND MODEL REVISE FROM P 2 16 3 4 ADD SPECIFICATION AND COMPONENTS OF NR BU303 SERIES ADD MODEL OF HONG KONG 4 5 REVISE DETAIL OF SPEC AND COMPONENTS ADD MODEL OF HONG KONG 5 7 REVISE PERFORMANCE DATA ADD MODEL NR BU303 343 SERIES OTHER REVISE PICTURE NO 16 24 AND 71 74 ADD PART OF MODEL NR BU303 7 14 16 REVISE PART LIST AND PACKING LIST ADD MODEL OF HONG KONG ...

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