Midea 22031020000145, Service Manual

Page 1: ...20000145 UR BCD280WE DQ 22031020001522 UR BCD280WE SQ 22031020000146 The picture is only for reference and specific appearance and configuration are subject to the real product Prepared by R D Qin Chu...

Page 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 Tech...

Page 3: ...ERMS 13 4 1 DEFINITION OF MODEL NONE 13 4 2LOCATION OF NAMEPLATE 13 5 PRODUCT SPECIFICATION 14 5 1 TYPE SPECIFICATION NONE 14 5 2 ELECTRICAL PARAMETERS 14 5 3INSIDE TEMPERATURE 14 5 4DEFROSTING PARTS...

Page 4: ...FAN MOTOR CIRCUIT OF THE FREEZING CHAMBER 34 10 5REFRIGERATOR FAN MOTOR CIRCUIT NONE 34 10 6CONDENSING FAN MOTOR CIRCUIT NONE 34 10 7DAMPER MOTOR CIRCUIT NONE 34 10 8RESISTANCE VALUE OF THE SENSOR R T...

Page 5: ...Service Manual 2016 12 5 46 1 Safety Warning Code 1 1Warning for operation safety...

Page 6: ...Service Manual 2016 12 6 46...

Page 7: ...Service Manual 2016 12 7 46...

Page 8: ...Service Manual 2016 12 8 46 1 2Safety instruction for refrigerant...

Page 9: ...pecific appearance and configuration are subject to the real product 1 Full air cooling and frost free design 2 Electronic temperature control system with more accurate temperature control 3 The crisp...

Page 10: ...erialsandbottomcushion then moveintohouseforplacement 3 After moving it to appropriate location wait for 2 h ours before power on 3 2Disassembly None The refrigerator door needs to be dismantled if it...

Page 11: ...aced steadily adjust the footing to level it 3 5Change the door opening direction 1 Remove the hinge cover Unscrew and remove the top hinge 2 Lift the freezer door up and away from the appliance 3 Rem...

Page 12: ...screwdriver Note You must re use the screws from the pin assemblies that are removed in this step when attaching the new assemblies 6 Place the refrigerator door on the bottom hinge Ensure the door is...

Page 13: ...llation of door lock None 3 8 Adjustment to level the door None 3 9 Adjustment to shelves None 4 Terms 4 1 Definition of model None 4 2Location of nameplate The picture is only for reference and speci...

Page 14: ...0 Rms Rmc Rsc Rmc 10 20 Rsc 30 50 Rms Rmc Rsc Variable frequency driver board Motor Fan motor of the freezing chamber BLDC DC12V 4W DC12V 4W DC12V 4W Ventilation door of the refrigerating chamber Cond...

Page 15: ...Service Manual 2016 12 15 46 Thermal fuse Cant be restored 77 o C Defrosting heater in freezing chamber Steel pipe 115V 200W 5 5Circuit diagram...

Page 16: ...eal product 1 Air duct components in freezing chamber 2 Air duct components in refrigerating chamber 3 Glass shelve 4 Cover plate of crisper 5 Crisper for fruit and vegetable 6 Regulating foot 7 Steel...

Page 17: ...Service Manual 2016 12 17 46 Down view Open Door Maximum open angle of door 135o...

Page 18: ...Service Manual 2016 12 18 46 The picture is only for reference and specific appearance and configuration are subject to the real product...

Page 19: ...ooling air 7 1 Refrigerating piping system 1Compressor 2Right condenser 3Anti condensation tube 4Left condenser 5Dry filter 6Capillary tube 7Evaporator 8Suction tube 1Compressor The picture is only fo...

Page 20: ...Service Manual 2016 12 20 46 7 2Circulating route of cooling air The picture is only for reference and specific appearance and configuration are subject to the real product...

Page 21: ...e and take it out from the door liner of the refrigerator rollover beam None 8 2Parts inside the refrigerator Refrigerator Fruit box cover Remove the crisper cover of ref compartement accordi ng to be...

Page 22: ...chamber 1 Loosen the hook with small normal screwdriver and pull out the switch until the wire connector reveals 8 4Air duct and fan motor Air duct components in freezing chamber All accessories in th...

Page 23: ...er fan motor assembly can be taken out 2 seperate the fan blade from fan motor pull forcibly 3 use screwdriver to remove the screw then seperate the bracket from fan motor 4 change the fan motor the r...

Page 24: ...that only the fuse needs to be replaced Defrost sensor The defrost sensor is located on top of the evaporator 1 Disconnect the connector of defrost sensor 2 Cut off the band which fixes the sensor 3...

Page 25: ...uct assembly from the freezer 2 Remove the sensor Ambient temperature sensor None Freezer sensor None 8 6Compressor case Rear cover and compressor case None Condenser fan moto None Terminal box of the...

Page 26: ...er and protector you can use a screwdriver to pry it slowly 5 The reverse process can complete installation 8 7Display and main control panel Display control board 1 Remove two screws from the refrige...

Page 27: ...the connector terminal and replace the master control board in reverse steps The temperature control indication sticker is likely to be damaged when replacing PCB thus it is advised to prepare one fo...

Page 28: ...28 46 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...

Page 29: ...button light will be bright for 3 seconds and then press the middle gear to show operation Normal operation display When failure occurs the corresponding LED light group will display fault code circu...

Page 30: ...her the terminal CN3 is well stuck pull out the terminal and re stick it in place Step 2 Check to see if therere foreign matters on the terminal Pull out the defrost sensor in freezing chamber accordi...

Page 31: ...frigerator will exit the test mode and return to normal operation mode Select to enter into forced defrosting mode Enter into test mode and press button for the second time LED indicators on Gear 3 4...

Page 32: ...urrent loaded switches of compressor ice maker and defrost heater The DC 12V power will output stable 5V electricity after passing through the adjustor 7805 to power for the main control chip and thus...

Page 33: ...istor The resistance value changes sensitively with temperature and typically changes 7 3 per degree centigrade Sensor used in the refrigerator is NTC thermistor There is following computing formula f...

Page 34: ...in operation fan motor or electric control panel can be replaced 10 5Refrigerator fan motor circuit None 10 6Condensing fan motor circuit None 10 7Damper motor circuit None 10 8Resistance value of the...

Page 35: ...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 1 029 18 16 9 3 7 568 12 3 613 27 1 838 42 0 9885...

Page 36: ...Service Manual 2016 12 36 46 11 Troubleshooting Method 11 1 No refrigeration...

Page 37: ...Service Manual 2016 12 37 46...

Page 38: ...Service Manual 2016 12 38 46 11 2 Compressor failure...

Page 39: ...Service Manual 2016 12 39 46 11 3 Defrosting is not working...

Page 40: ...Service Manual 2016 12 40 46 11 4 Fan in the freezing chamber is abnormal Refer to this method for other fans...

Page 41: ...Service Manual 2016 12 41 46 11 5 Damper is abnormal None 11 6 Lights inside the refrigerator dont light up...

Page 42: ...nts are provided separately 12 1 Figure 12 2 List of parts and components 13Appendix 13 1Electrical Schematic Diagram Model 13 2refrigerator maintenance tooling and equipment and material Tooling No N...

Page 43: ...d 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 V...

Page 44: ...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 c...

Page 45: ...ak 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 w...

Page 46: ...erators 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 Technol...