Panasonic NR-BN31EX2 Service Manual Download Page 31 | Manualshive

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31

9.8.

Inverter PCB Assy.

Note : Before taking any action, please be sure to unplug

the power supply.

1. Unscrew the screw fixing the Inverter PCB Assy..

2. Pull the Inverter PCB Assy. to the left direction while rock-

ing back and forth.

3. Unscrew the screw fixing the Inverter PCB Assy. cover.

4. Unhook the hook, then remove the cover.

5. Remove the all connectors.

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Summary of Contents for NR-BN31EX2

Page 1: ...less W White Destination E Europe Continental TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions 2 2 Specifications 5 3 Technical Descriptions 6 4 Location of Controls and Components 7 5 Installation Instructions 9 6 Operating Instructions 11 7 Service Mode 14 8 Troubleshooting Guide 19 9 Disassembly and Assembly Instructions 25 10 Schematic Diagram 38 11 Exploded View and Replacement Parts List 39 ...

Page 2: ...2 1 Safety Precautions ...

Page 3: ...3 ...

Page 4: ...4 ...

Page 5: ...0 SUPPLIER S NAME Panasonic MODEL NR BN31EX2 E NR BN31EW2 E CATEGORY 7 Refrigerator Freezer ENERGY EFFICIENCY CLASS A ANNUAL ENERGY CONSUMPTION 166 kWh year 1 NET FRIDGE VOLUME 207 L NET CHILL VOLUME 16 L NET FREEZER VOLUME 80 L STAR RATING OF THE FREEZER Four star FROST FREE COMPARTMENTS Fridge No frost Freezer No frost TEMPERATURE RISE TIME 18 hours FREEZING CAPACITY 8 kg 24 h CLIMATE CLASS SN T...

Page 6: ...ff while compressor stops Fan motor is turned on while compressor is running If damper is open fan motor is turned on even though compressor has stopped 3 4 Defrost Operation Defrost does not activate in the following conditions For 120 minutes after Super Cool Mode starts For 120 minutes after Super Freeze Mode starts For 120 minutes after Flash Freeze Mode starts Input Output Preset temp of free...

Page 7: ...7 4 Location of Controls and Components 4 1 Display and Control Panel ...

Page 8: ...8 4 2 Components ...

Page 9: ...9 5 Installation Instructions ...

Page 10: ...10 ...

Page 11: ...11 6 Operating Instructions 6 1 Setting the temperature 6 1 1 Fridge compartment PC 6 1 2 Freezer compartment FC 6 1 3 Humidity control of Vitamin Safe Crisper 6 2 Functions 6 2 1 Vitamin Safe Mode ...

Page 12: ...12 6 2 2 Super Cool Mode 6 2 3 Super Freeze Mode 6 2 4 Flash Freeze Mode ...

Page 13: ...13 6 2 5 ECO Mode 6 2 6 Holiday Mode 6 2 7 Alarm Mode 6 2 8 Child safety lock ...

Page 14: ...than 3 seconds 7 2 How to end 15 minutes have passed after service mode starts Press both of the alarm button and the lower fridge temperature button for more than 3 seconds 7 3 Summary of service mode Service mode code is displayed on fridge temperature display It can be changed by pushing fridge temperature button ...

Page 15: ...ON OFF of the defrost heater can be controlled by pressing the alarm button Service mode code is blinking while the heater is OFF and the code is lit not blinking while the heater is ON 7 9 Service Mode 05 PC Dumper When 05 is displayed on fridge temperature display Open Close of the PC dumper can be controlled by pressing the alarm button Service mode code is blinking while the PC dumper is close...

Page 16: ...e or freezer temperature display when failure causes E0 and E1 are displayed on the fridge temperature display E3 is displayed on the freezer temperature display 7 16 Measuring Points on Main PCB Box Note For more detail refer to the Schematic Diagram on page 38 ...

Page 17: ...ed When the PC Damper opens the Fan Motor switches on and when the PC Damper closes the Fan Motor switches off Display for Fridge temperature displays E1 Freezer compartment FC Failure of FC sensor in freezer compartment display shows E3 The request for cooling of freezer compartment i e switch on off of compressor and Fan Motor is activated in cycles 15 minutes ON 40 minutes OFF If the request fo...

Page 18: ...fter the cancellation of the sound alarm the appliance does not cool down below the alarm temperature the sound alarm is activated again Alarm due to power supply failure blackout during appliance operation In case that during a power failure the appliance has heated up to the alarm temperature 13 C in fridge or 9 C in freezer compartment after the restoration of power supply the alarm of too high...

Page 19: ...19 8 Troubleshooting Guide 8 1 Not cooling at all Both PC FC compressor does not operate ...

Page 20: ...20 8 2 PC is not cooling or poor cooling FC cooling condition is normal ...

Page 21: ...21 8 3 FC is not cooling Compressor operate ...

Page 22: ...22 8 4 Cooling system trouble ...

Page 23: ...23 8 5 Communication trouble 8 6 Temperature sensor trouble ...

Page 24: ...24 ...

Page 25: ...e power supply 9 1 Display Panel A ssy Display and Control Panel Note Please wear electrostatic discharge band 1 Insert flat screw driver into the bottom of the Display Panel Assy and then pull out the Display Panel Assy Please protect the door with scotch tape from scratch 2 Disconnect the connector ...

Page 26: ...o the left 3 Remove LED Lamp Assy and disconnect the connector 9 3 Main PCB 1 Main PCB is installed at the upper side of refrigerator 2 Slide both the Head Panel Cover R and the Head Panel Cover L to remove 3 Unscrew the two screws fixing the Head Panel Cover Center and remove it 4 Disconnect the connector ...

Page 27: ...e PCB box toward you 6 Unhook the connector s hook then disconnect the con nectors 7 Main PCB Assy Main PCB with PCB box 9 4 Air Flow Ins PC 1 First remove the Glass Shelves Bottle Support and Drawers then unscrew the two screws 2 Remove the PC Air Duct Lower 3 Disconnect the connector of Vitamin LED ...

Page 28: ... that you can see the con nector of damper 9 5 Fan Assy 1 First remove the FC Drawers then unscrew the four screws 2 Pull out the FC Air Duct Cover so that you can see the connector of Fan Motor And then disconnect the connector 3 Unhook the six hooks at the back side then remove the FC Air Duct Cover ...

Page 29: ... 9 6 Door Switch FC 1 First remove the FC Drawers 2 Unscrew the screw fixing the Door Switch Cover 3 Open the Door Switch Cover 4 Unhook the hook then remove the Door Switch FC 5 Disconnect the connector ...

Page 30: ...off approx 25mm of additional cable insulation and 5mm of basic insulation of the conductor 4 First crimp the enclosed end splices on conductor of the new sensor Place the enclosed thermo shrinkable bushing Crimp end splices on conductors of cut cable 5 Use hair dryer and heat the bushings so that they tightly wrap the conductors and prevent moisture from breaking through the joint 6 Place the sen...

Page 31: ...nplug the power supply 1 Unscrew the screw fixing the Inverter PCB Assy 2 Pull the Inverter PCB Assy to the left direction while rock ing back and forth 3 Unscrew the screw fixing the Inverter PCB Assy cover 4 Unhook the hook then remove the cover 5 Remove the all connectors ...

Page 32: ...32 9 9 Positions of Temperature Sensors Thermal Fuse Defrost Heater and PC Door Switch ...

Page 33: ... Remove the PC Door Edge Cover Left 3 Disconnect the Display Connector 4 Unscrew the screws fixing the Upper Hinge 5 Remove the PC Door 6 Remove the PC Hinge Cover VC 7 Slide the Head Panel Cover Right and Head Panel Cover Left then remove its 8 Unscrew the screws fixing the Head Panel Cover Center and remove it ...

Page 34: ...ion 11 Screw the screws fixing the Head Panel Cover Center 12 Slide the Head Panel Cover Left and Head Panel Cover Right then fix it 13 Unscrew the Middle Hinge fixing screw and remove it 14 Remove the FC Door 15 Remove the Middle Hinge Plugs and the Screw cap then unscrew the screw 16 Screw the screw Install the Middle Hinge Plugs and the Screw cap ...

Page 35: ...or Limiter Right then install FC Door Limiter Left You can find the FC Door Limiter Left in the user manual bag 20 Assemble the FC Door 21 Replace the Door Bushing and the FC Door Plug 22 Remove the PC Door Limiter Right then install PC Door Limiter Left You can find the PC Door Limiter Left in the user manual bag 23 Turn the Middle Hinge upside down and screw it The thick washer on the downside 2...

Page 36: ... the Upper Hinge fixing screws 29 Install the Hinge Cover 30 Fix the Hinge Cover VC and the PC Door Edge Cover Right 31 Remove the display panel by using a small flat blade screwdriver Refer to the Replacement of Display 32 Replace the connector right and the connector left Refer to the Replacement of Display ...

Page 37: ...37 33 Remove the Filling Plugs 34 Unscrew the Handles fixing Torx screws using the Torx screwdriver 35 Screw the Handles to the right side 36 Install the Filling Plugs to the left side ...

Page 38: ...38 10 Schematic Diagram ...

Page 39: ...39 11 Exploded View and Replacement Parts List 11 1 Interior Parts ...

Page 40: ...1 737 CNR 662161 SENSOR COVER PC 1 1 741 CNR 498253 HINGE COVER VC 1 741 CNR 449375 HINGE COVER VC 1 1326 CNR 408228 CONTROL BOARD PLUG 2 2 1328 CNR 558005 COVER LIGHTING LED 1 1 1329 CNR 410063 LIGHTING LED 1 1 1334 CNR 408609 MIDDLE HINGE 1 1 1335 CNR 462227 LOWER HINGE 1 1 1336 CNR 498251 HEAD PANEL COVER SIDE 2 1336 CNR 407852 HEAD PANEL COVER SIDE 2 1337 CNR 499340 HEAD PANEL COVER CENTER 1 1...

Page 41: ...41 11 3 Drawer Parts ...

Page 42: ...LOWER FLAP ASSY PC 1 1 1331 CNR 435902 DRAWER COVER MIDDLE FC 1 1 1332 CNR 435904 DRAWER COVER UPPER FC 1 1 1333 CNR 422798 DRAWER COVER LOWER FC 1 1 1344 CNR 409793 GLASS SHELF LOWER PC 1 1 1345 CNR 409817 GLASS SHELF PROFILE BACK PC 3 3 1346 CNR 409841 GLASS SHELF PROFILE FRONT PC 3 3 1352 CNR 561065 DRAWER UPPER PC 1 1 N 1353 CNR 410813 DRAWER UPPER PROFILE PC 1 1 1355 CNR 410814 DRAWER LOWER P...

Page 43: ...43 11 5 Door Assy Parts ...

Page 44: ...CNR 422779 DOOR TRAY LOWER PC 1 1 1321 CNR 411660 EGGS RACK 1 1 1322 CNR 416612 BOTTLE RETAINER 1 1 1347 CNR 409806 MULTIFUNCTIONAL CONTAINER 1 1 1348 CNR 409808 DOOR TRAY LOWER PROFILE PC 1 1 1356 CNR 499338 DOOR EDGE COVER LEFT PC 1 1356 CNR 415301 DOOR EDGE COVER LEFT PC 1 1357 CNR 499339 DOOR EDGE COVER RIGHT PC 1 1357 CNR 415302 DOOR EDGE COVER RIGHT PC 1 1373 CNR 411147 DOOR TRAY UPPER PROFI...

Page 45: ...rks New parts N E E 1360 CNR 510276 PC AIR DUCT LOWER 1 1 1361 CNR 436878 AIR FLOW INS PC 1 1 1362 CNR 562042 FC AIR DUCT WITH FAN 1 1 N 1364 CNR 408281 FC AIR DUCT COVER 1 1 1371 CNR 559682 PC AIR DUCT UPPER 1 1 1388 CNR 436308 AIR CHANNEL COVER 1 1 1402 CNR 458759 LENS VITAMIN LED 1 1 1403 CNR 561509 VITAMIN LED 1 1 N ...

Page 46: ...46 11 9 Unit Parts ...

Page 47: ... 441328 CONDENSER 1 1 N 188 CNR 462752 TERMAL FUSE WITH HARNESS 1 1 209 CNR 561517 SUPPLY CORD 1 1 N 210 CNR 491419 COMPRESSOR 1 1 N 1212 CNR 516340 INVERTER PCB ASSY 1 1 N 1340 CNR 480866 EVAPORATING TRAY 1 1 1349 CNR 408380 EVAPORATING TRAY COVER 1 1 1365 CNR 564893 EVAPORATOR ASSY 1 1 N 1461 CNR 540393 IMMERSION PIPE 1 1 N 1462 CNR 494685 TUBE ABSORBER 1 1 ...

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