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Service Manual

, 2016-12

Service Manual

Applicable Models

Model No.

UR-BD390WE-ST

22031010001341

CE-BD390WE-ST

22031010001361

UR-BD390WE-ST

92031010Z00044

UR-BD390WE-ST

92031010Z00046

(The picture is only for reference, and specific appearance and configuration are subject to the real product)

Prepared by

R&D:Zha Caicun

Reviewed by

QA:Li Jiangli

SVC:Zhang kun

Approved by

R&D:Geng Xiuhua

SVC:GuangTaoshuai

Содержание 22031010001341

Страница 1: ...BD390WE ST 22031010001361 UR BD390WE ST 92031010Z00044 UR BD390WE ST 92031010Z00046 The picture is only for reference and specific appearance and configuration are subject to the real product Prepared by R D Zha Caicun Reviewed by QA Li Jiangli SVC Zhang kun Approved by R D Geng Xiuhua SVC GuangTaoshuai ...

Страница 2: ... to repair main devices may lead to personal injury and property loss Manufacturers or distributors are not responsible for the content of the Manual and interpretation thereof Midea Refrigerators Technical Maintenance Manual Copyright 2016 All rights reserved Replication of all or part of the Manual in any forms shall not be allowed without written approval by the Overseas Sales Corporation of Mi...

Страница 3: ...1 DEFINITION OF MODEL NONE 12 4 2LOCATION OF NAMEPLATE 12 5 PRODUCT SPECIFICATION 13 5 1 TYPESPECIFICATION NONE 13 5 2 ELECTRICAL PARAMETERS 13 5 3INSIDE TEMPERATURE 13 5 4DEFROSTING PARTS 13 5 5CIRCUIT DIAGRAM 14 6 INTERNAL VIEW AND DIMENSION 16 6 1MAIN PARTS AND THEIR NAMES 16 6 2EXTERNAL DIMENSION 16 7 REFRIGERATING PIPING SYSTEM AND CIRCULATING ROUTE OF COOLING AIR7 1 REFRIGERATING PIPING SYST...

Страница 4: ...OR CIRCUIT OF THE FREEZING CHAMBER 31 10 5REFRIGERATOR FAN MOTOR CIRCUIT NONE 32 10 6CONDENSING FAN MOTOR CIRCUIT NONE 32 10 7DAMPER MOTOR CIRCUIT NONE 32 10 8RESISTANCE VALUE OF THE SENSOR R T 32 11 TROUBLESHOOTING METHOD 33 11 1 NO REFRIGERATION 33 11 2 COMPRESSOR FAILURE 34 11 3 DEFROSTING IS NOT WORKING 35 11 4 FAN IN THE FREEZING CHAMBER IS ABNORMAL 36 11 5 DAMPER IS ABNORMAL NONE 11 6 LIGHTS...

Страница 5: ...Service Manual 2016 12 5 42 1 Safety Warning Code 1 1Warning for operation safety ...

Страница 6: ...Service Manual 2016 12 6 42 ...

Страница 7: ...Service Manual 2016 12 7 42 ...

Страница 8: ...Service Manual 2016 12 8 42 1 2 冷媒安全须知 ...

Страница 9: ...h following features The picture is only for reference and specific appearance and configuration are subject to the real product 1 Full air cooling and frost free design 2 Electronic temperature control more accurate temperature control 3 BC BD can switch meet the different needs of customers ...

Страница 10: ...Aftermovingittoappropriatelocation waitfor2hours beforepoweron 3 2Disassembly None The refrigerator door needs to be dismantled if it cannot enter the room in the whole 3 3 Installation location Location that is easy for ventilation shall be chosen to facilitate heat dissipation enhance its performance and reduce the energy consumption 3 4 Leveling of the refrigerator If the refrigerator cannot be...

Страница 11: ...r to drive into the screw hole on the door body and tighten it 2 Align the screw hole on the handle with the tightened to fix the handle 3 Tighten on the handle side 4 Put onto the handle side hole to complete handle installation 3 7 Installation of door lock None 3 8 Adjustment to level the door None 3 9 Adjustment to shelves None ...

Страница 12: ...ervice Manual 2016 12 12 42 4 Terms 4 1 Definition of model None 4 2Location of nameplate The picture is only for reference and specific appearance and configuration are subject to the real product Label ...

Страница 13: ... Rmc Rsc Variable frequency driver board Motor Fan motor of the freezing chamber DC DC12V DC12V Ventilation door of the refrigerating chamber Condensation fan Lights inside the refrigerator Lights inside the freezing chamber LED DC12V DC12V Lights inside the refrigerating chamber Switch of the refrigerator door mechanicalsw itch Cylindrical switch Cylindrical switch 5 3Inside temperature Temperatu...

Страница 14: ...Service Manual 2016 12 14 42 5 5Circuit diagram UR BD390WE ST_22031010001341 92031010Z00046 92031010Z00044 CE BD390WE ST_22031010001361 ...

Страница 15: ...Service Manual 2016 12 15 42 ...

Страница 16: ...ce and specific appearance and configuration are subject to the real product 1 Glass shelf 2 Upper air duct cover 3 Glass shelf 4 Glass shelf 5 Bottom air duct cover 6 Glass shelf 7 Bottom drawer of freezer chamber 8 Door switch 9 Door tray 10 Door tray 11 Door tray 12 Door tray 6 2External dimension Front view Side view ...

Страница 17: ...Service Manual 2016 12 17 42 Down view Open Door Maximum open angle of door 140 The picture is only for reference and specific appearance and configuration are subject to the real product ...

Страница 18: ...g system 1Compressor 2Exhaust transition pipe 3Left condenser 4Anti condensationg tube 5Back condenser 6Right condenser 7Dry filter 8Capillary tube 9Evaporator 10Suction pipe 11Return transition pipe 2Compressor The picture is only for reference and specific appearance and configuration are subject to the real product ...

Страница 19: ...Service Manual 2016 12 19 42 7 2Circulating route of cooling air The picture is only for reference and specific appearance and configuration are subject to the real product ...

Страница 20: ...iner of the refrigerator rollover beam None 8 2Parts inside the refrigerator Refrigerator Fruit box cover None Shelves 1 Pull out the partition plate completely 2 Lift it up and take it out from the refrigerator Ice tray None Refrigerator tray None Drawer None 8 3Light system Light Light of the freezer chamber is located upper chamber 1 use slotted screwdriver to insert into the gap dismantle the ...

Страница 21: ...Remove 2 screws on the cover plate of the freezing air duct using a cross screwdriver ace the Air duct in reverse steps 1 use cross screwdriver to remove the 2 pcs screws of air duct cover 2 hold the upper position of air duct cover and pull it our slightly it should be very careful for avoiding the wiring harness connector be damaged if overexert 3 unplug all wiring connectors and dismantle the a...

Страница 22: ... assembly None 8 5Evaporator and temperature sensing system Evaporator in freezing chamber 1 Remove the air duct components in freezing chamber 2 Disconnect all connectors 3 Remove the welding on inlet and outlet tubes 4 Remove two screws which are used to fix the evaporator and remove the evaporator Components on the evaporator Fuse The fuse is located on top of the evaporator 1 connect the fuse ...

Страница 23: ...cated at bottom of the evaporator 1 Disconnect the connector of defrost heater 2 Cut off the band which fixes the defrost heater 3 Take off the defrost heater from the evaporator Dont break the welding of the evaporator in case that only the defrost heater needs to be replaced Ambient temperature sensor None Ambient temperature sensor Ambient temperature sensor is located in upper hinge cover Free...

Страница 24: ... condensationg tube 4 Left condenser 5 Back condenser 6 Right condenser 7 Dry filter 8 Capillary 9 Suction pipe 10 Return transition pipe Starter and protector of the compressor 1 Remove the screws 1 Two screws outside 2 One screw inside 2 Remove the clipping strip Slowly pull it out 3 Remove the protective cover 1 Pry the protective cover slowly from the upper part 2 Pull it out and remove it ...

Страница 25: ...ation 8 7Display and main control panel Display control board 1 Use vacuum cap to pull the control panel outwards 2 Disconnect the connector of display control board remove it Main control board remove the fixed screw from main control board box Open the main control board box coverremove the fixed screw pull out the main control boardDisconnect the connector of main control board ...

Страница 26: ...tallation bar doorseal None 8 9 Water dispenser None Disassembly and installation of water valve None Disassembly and installation of water tank None 8 10 Ice maker None Disassembly and installation of ice maker None Disassembly and installation of water system None Disassembly and installation ice machine sensor None ...

Страница 27: ...reeze buttonB Lock button C Freeze Fridge switch buttonD Temperature setting downE Temperature setting up 9 2Button 9 3 LEDIndicator 1 Hi Temp High temperature alarm 2 Door Open Door keep open for 300 seconds alarm 3 Temperature display area 4 Fahrenheit temperature 5 Celsius temperature 6 Quick frozen setting 7 Lock Unlock button 8 Freezer and fridge function choose 9 4Funtion Freeze Fridge switc...

Страница 28: ...s over 59 o F 15 for 36 hours then the high temperature alert is activated with the blue point on and a buzzing for 10s and it will be buzzing for 10s every 30 minutes If the temperature goes under 54 o F 12 the High Temperature Alert will be lifted Or press any button it will be lifted too At freezer mode if the inside temperature is over 18 F 8 for 36 hours then the high temperature alert is act...

Страница 29: ...n The refrigerator is made based on the air cooling principle and thus has automatic defrosting function Frost formed due to change of season or temperature may also be manually removed by disconnection of the appliance from power supply or by wiping with a dry towel 9 9Test mode None 9 10Self diagnosis Entry Condition Entry of self diagnosis within 5s after power on 5s if no sensor fault and the ...

Страница 30: ...nitor the temperature changes in refrigerator 10 2Door trip test circuit 5V voltage send high level signal to MCU by passing the R70 at this moment the fridge door is closed When the fridge door is opened the door switch is closed at this moment 5V is connected to GND by passing R70 and it sends low level signal to MCU By high level or low level voltage detected the MCU get the information of door...

Страница 31: ...ng computing formula for the sensor Sampling voltage reference voltage R1 RNTC R1 AD value reference AD value R1 RNTC R1 The reference voltage is 5V RNTC is the resistance value of the sensor R1 is R31 R32 R33 in schematic diagram that is 5 1K 10 4Fan motor circuit of the freezing chamber The fan in the freezing chamber is running when the compressor is operating Check 12V and FAN to see if there ...

Страница 32: ...2 865 32 1 486 27 28 29 12 12 16 3 5 587 18 2 737 33 1 426 26 26 68 11 11 52 4 5 315 19 2 616 34 1 368 25 25 17 10 10 92 5 5 06 20 2 501 35 1 312 24 23 76 9 10 35 6 4 818 21 2 391 36 1 259 23 22 43 8 9 82 7 4 589 22 2 287 37 1 209 22 21 18 7 9 316 8 4 372 23 2 188 38 1 161 21 20 01 6 8 841 9 4 167 24 2 094 39 1 115 20 18 9 5 8 392 10 3 972 25 2 005 40 1 071 19 17 87 4 7 968 11 3 788 26 1 919 41 1 ...

Страница 33: ...Service Manual 2016 12 33 42 11 Troubleshooting Method 11 1 No refrigeration ...

Страница 34: ...Service Manual 2016 12 34 42 11 2 Compressor failure ...

Страница 35: ...Service Manual 2016 12 35 42 11 3 Defrosting is not working ...

Страница 36: ...Service Manual 2016 12 36 42 11 4 Fan in the freezing chamber is abnormal Refer to this method for other fans ...

Страница 37: ...Service Manual 2016 12 37 42 11 5 Damper is abnormal None 11 6 Lights inside the refrigerator don t light up ...

Страница 38: ...pair parts Documents are provided separately 12 1 Figure 12 2 List of parts and components 13Appendix 13 1Electrical Schematic Diagram Model UL BD390 481 594WE ST 13 2refrigerator maintenance tooling and equipment and material Tooling No Name Photo Main Usage ...

Страница 39: ...ver scraper screw and rivet assemble and disassemble 3 Socket spanner 5 16 hinge and compressor screw assemble and disassemble 4 Sucker display panel and air duct cover disassemble 5 Allen wrench 2 8 4mm handle assemble and disassemble 6 Vise grip pliers sealing process tube 7 Pipe cutter pipe cutting ...

Страница 40: ...ssistive tool 10 Capillary tube scissors Shear capillary Equipment No Name Photo Main Usage 1 Vacuum pump vacuum pumping 2 Electronic scale weighing refrigerant gas 3 High pressure nitrogen with piezometer pipe and cooling system condenser evaporator etc impurities clean ...

Страница 41: ... lbeused 6 hand leak detector welding point leakage detect if no use soap suds material No Name Photo Main Usage 1 Process pipeline Chargetherefrigerant 2 Dry filter Involving a system failure to be replaced 3 Copper welding rod tube welding 4 Refrigerant gas Add refrigerant to the system 5 Sealing tape door fixing for reversible door option ...

Страница 42: ...gerators If you need to get detailed technical information from the manufacturer please contact xxx midea com Refrigeration Division Overseas Sales Company Address No 176 Jinxiu Avenue Economic Technological Development Area Hefei Anhui China ...

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