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Service Manual
Applicable Models
SO-BD386WE-UT
UL-BD386WE-SQ
UL-BD386WE-FQ
(The picture is only for reference, and specific appearance and configuration are subject to the real
Reviewed by
Approved by
product)
Prepared by
SVC:Guang Taoshuai
Service manual, 2016-12
Model No.
22031010000120
22031010000112
22031010000107
R&D:Zheng Qiang
QA:Wang Tao
SVC:Zhang Kun
R&D:Geng Xiuhua
1 / 42
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Table of Contents
Related Manuals for Midea SO-BD386WE-UT
Summary of Contents for Midea SO-BD386WE-UT
- Page 1 Service manual, 2016-12 Service Manual Applicable Models Model No. SO-BD386WE-UT 22031010000120 UL-BD386WE-SQ 22031010000112 UL-BD386WE-FQ 22031010000107 (The picture is only for reference, and specific appearance and configuration are subject to the real product) Prepared by R&D:Zheng Qiang QA:Wang Tao Reviewed by SVC:Zhang Kun R&D:Geng Xiuhua...
- Page 2 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 Midea Refrigerators. 2 / 42...
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Page 3: Table Of Contents
Service manual, 2016-12 Contents 1.SAFETY WARNING CODE........................5 ....................... 5 1.1W ARNING FOR OPERATION SAFETY ..................... 8 1.2S AFETY INSTRUCTION FOR REFRIGERANT 2.DESCRIPTION FOR PRODUCT FEATURES ..................9 3.INSTALLATION AND COMMISSIONING ...................10 ..............................10 3.1H ANDLING ) ..........................10 3.2D ISASSEMBLY ........................... - Page 4 Service manual, 2016-12 ......................26 8.7D ISPLAY AND MAIN CONTROL PANEL ) ..........................26 8.8 B AR COUNTER ) ......................... 26 8.9 W ATER DISPENSER ) ........................... 27 8.10 I CE MAKER 9. FUNCTION AND OPERATION ......................28 ............................. 28 9.1 O PERATION PANEL ..............................
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Page 5: Safety Warning Code
Service manual, 2016-12 1.Safety Warning Code 1.1Warning for operation safety 5 / 42... - Page 6 Service manual, 2016-12 6 / 42...
- Page 7 Service manual, 2016-12 7 / 42...
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Page 8: Safety Instruction For Refrigerant
Service manual, 2016-12 1.2Safety instruction for refrigerant 8 / 42... -
Page 9: Description For Product Features
Service manual, 2016-12 2.Description for product features This product is provided with 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 system with more accurate temperature control. 3）Open delay alarm function 9 / 42... -
Page 10: Installation And Commissioning
Service manual, 2016-12 3.Installation and commissioning 3.1Handling 1) Protecttherefrigeratorinmovingit Sameasshownasleftphoto,pleasemoveitbyhandcartwi thcushion 2) Removeallpackingmaterialsandbottomcushion,then moveintohouseforplacement 3) Aftermovingittoappropriatelocation,waitfor2hoursbe forepoweron. 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. -
Page 11: Change The Door Opening Direction(None)
Service manual, 2016-12 3.5Change the door opening direction(None) 3.6 Installation of handle 11 / 42... -
Page 12: Installation Of Door Lock(None)
Service manual, 2016-12 3.7 Installation 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 specific appearance and configuration are subject to the real product) 12 / 42... -
Page 13: Product Specification
Service manual, 2016-12 5.Product specification 5.1 typespecification(None) 5.2 Electrical parameters Product Name SO-BD386WE-UT UL-BD386WE-SQ UL-BD386WE-FQ 22031010000120 22031010000112 Product Code 22031010000107 Name Item Type Specification Specification Specification PE50H1F-4SVL EE50H1C Compressor HYE60Y42 8EA19C3/QP2-15/ Starter QPE2-A4R7MD3 QP2-4R7 QP2-15 3TM166TF2/DRB Overload protector DRB31T61A1 DRB33S61A1... -
Page 14: Defrosting Parts
Service manual, 2016-12 5.4Defrosting parts Initial defrosting period Normal defrosting period Defrosting period Temperature is lower than 0 6~24 hours B3839 Defrosting sensor Can’t be restored Thermal fuse 77℃ 230V/180W Defrosting heater in freezing chamber Steel pipe 115V/180W 5.5Circuit diagram SO-BD386WE-UT_22031010000120 UL-BD386WE-SQ_22031010000112(UL-BD386WE-FQ_22031010000107) 14 / 42... - Page 15 Service manual, 2016-12 15 / 42...
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Page 16: Internal View And Dimension
Service manual, 2016-12 6.Internal view and dimension 6.1Main parts and their names (The picture is only for reference, and specific appearance and configuration are subject to the real product) Freezing chamber Refrigerator chamber 1.Air duct front plate 7.Freezer door tray 8.Reversible adjustable shelf 2.Steel wire storage rack（big）... - Page 17 Service manual, 2016-12 Down view Open Door Maximum open angle of door(135 17 / 42...
- Page 18 Service manual, 2016-12 (The picture is only for reference, and specific appearance and configuration are subject to the real product) 18 / 42...
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Page 19: Refrigerating Piping System And Circulating Route Of Cooling Air
Service manual, 2016-12 7.Refrigerating piping system and circulating route of cooling 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 for reference, and specific appearance and configuration are subject to the real product) 19 / 42... -
Page 20: Circulating Route Of Cooling Air
Service manual, 2016-12 7.2Circulating route of cooling air (The picture is only for reference, and specific appearance and configuration are subject to the real product) 20 / 42... -
Page 21: Dismantling Of Parts
Service manual, 2016-12 8. Dismantling of parts 8.1 Parts on the door Door seal Door seal is installed into door liner groove. 1） Open the refrigerator door; 2） Take the door seal ①out of door liner; Door tray Lift up the bottle frame and take it out from the door liner of the refrigerator. -
Page 22: Air Duct And Fan Motor
Service manual, 2016-12 Light of the refrigerating chamber is located upper chamber 1） Remove the lamp cover 2） Remove the bulb Light switch There is a light switch on the side wall of the refrigerating chamber. 1） Loosen the hook with small normal screwdriver and pull out the switch until the wire connector reveals. -
Page 23: Evaporator And Temperature Sensing System
Service manual, 2016-12 1) Remove the fixed tape on the surface of motor 2) Hold the corner, and dismantle the motor from one side(without plastic clips) 3) Remove the sealing washer by force 4) Separate the fan motor and fin blade(pull by force) 5) Change the motor, the reverse operation is for assembly Damper assembly... -
Page 24: Compressor Case
Service manual, 2016-12 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） Separate the sensor and the evaporator. *,Don’t break the welding of the evaporator in case that only the sensor needs to be replaced. - Page 25 Service manual, 2016-12 anti-condensation piperight condenseroutlet of transition pipeleft condenseranti-condensation anti-condensation pipedry filterSuction pipe assembly pipedischarge and evaporating 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.
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Page 26: Display And Main Control Panel
Service manual, 2016-12 4. Remove the starter and protector Unplug the starter 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 1)use slotted screwdriver to prize up the display PCB assembly slightly, to get the display PCB assembly 2)use cross screwdriver to remove the 4 pcs screws,... -
Page 27: Ice Maker(None)
Service manual, 2016-12 Ice maker(None) 8.10 Disassembly and installation of ice maker None Disassembly and installation of water system None Disassembly and installation ice machine sensor None 27 / 42... -
Page 28: Function And Operation
Service manual, 2016-12 9. Function and operation 9.1 Operation panel 9.2 Button A Quick Freeze button B. Switch button of Fahrenheit display and Centigrade display C. Cancellation button of alarm D. Lock/Unlock button E. Temperature adjustment button (warmer) F. Temperature adjustment button(Colder) 9.3 Display screen Freezer/Refrigerator temperature display zone 2. -
Page 29: Setting Of The Gear
Service manual, 2016-12 display for 30 seconds, then darken. 9.5 Setting of the gear 9.5.1Lock and unlock In unlocked status, press the button(LOCK/UNLOCK) for 3S,to enter into the locked status In locked status, press the button(LOCK/UNLOCK) for 3S,to enter into the unlocked status Note：... -
Page 30: Defrosting Function
Service manual, 2016-12 sensor fail Step2:change the main PCB Step3:change the display PCB Check the temperature of F room and check whether the F room high door seal fan motor and compressor of F room operate temp alarm normally 9.9Defrosting function 1.Defrost the freezing chamber as per the accumulative operation time of the Compressor2.If power failure occurs abruptly to the Compressor and the defrosting sensor in freezing chamber is less than 0 after powering on, then first conduct defrosting once. -
Page 31: Circuit Description
Service manual, 2016-12 10.Circuit description 10.1 Power Supply AC input power will be treated by transformer ,and rectified when through D1~D4,then filtered by E1 capacitor .it will output stable DC12V after through there terminal regulator 7812, DC12V is for provide power to relay(control strong electricity), the relay is for control the on-off of compressor, and the defrosting heater. -
Page 32: Fan Motor Circuit Of The Freezing Chamber
Service manual, 2016-12 The characteristic that resistance value reduces as the temperature increases is deemed to have negative slope or negative temperature coefficient (NTC), and such thermistor is called as NTC thermistor. The resistance value changes sensitively with temperature and typically changes 7% ~ 3% per degree centigrade. -
Page 33: Refrigerator Fan Motor Circuit (None)
Service manual, 2016-12 10.5Refrigerator fan motor circuit (None) 10.6Condensing fan motor circuit (None) 10.7Damper motor circuit (None) 10.8Resistance value of the sensor (R/T) Tx(℃) R（KΩ） Tx(℃) R（KΩ） Tx(℃) R（KΩ） Tx(℃) R（KΩ） Tx(℃) R（KΩ） 33.81 14.31 6.495 3.141 1.617 31.85 13.55 6.175 2.999 1.55... -
Page 34: Troubleshooting Method
Service manual, 2016-12 11.Troubleshooting Method 11.1 No refrigeration 34 / 42... -
Page 35: Compressor Failure
Service manual, 2016-12 11.2 Compressor failure 35 / 42... -
Page 36: Defrosting Is Not Working
Service manual, 2016-12 11.3 Defrosting is not working 11.4 Fan in the freezing chamber is abnormal Refer to this method for other fans. 36 / 42... -
Page 37: Damper Is Abnormal(None)
Service manual, 2016-12 11.5 Damper is abnormal(None) 11.6 Lights inside the refrigerator don’t light up 12. Figures and details of repair parts( Documents are provided separately 12.1 Figure 12.2 List of parts and components 13Appendix: 13.1Electrical Schematic Diagram (Model:***) 37 / 42... -
Page 38: Refrigerator Maintenance Tooling And Equipment And Material
Service manual, 2016-12 13.2refrigerator maintenance tooling and equipment and material Tooling Name Photo Main Usage Phillips screwdriver screw assemble and disassemble screw and rivet assemble and slotted screwdriver/scraper disassemble hinge and compressor screw Socket spanner 5/16″ assemble and disassemble 38 / 42... - Page 39 Service manual, 2016-12 display panel and air duct Sucker cover disassemble handle assemble and Allen wrench（2.8~4mm） disassemble Vise grip pliers sealing process tube Pipe cutter pipe cutting Knife assistive tool Nipper pliers assistive tool Capillary tube scissors Shear capillary Equipment Name Photo Main Usage...
- Page 40 Service manual, 2016-12 Vacuum pump vacuum pumping Electronic scale weighing refrigerant/gas pipe and cooling High pressure nitrogen with system(condenser, evaporator, piezometer etc) impurities clean Soldering gun heating and welding connection process Quick coupling pipeline,vacuumorchargerefriger antwillbeused. welding point leakage detect, if hand leak detector no, use soap-suds material...
- Page 41 Service manual, 2016-12 Process pipeline Chargetherefrigerant Involving a system failure to be Dry filter replaced Copper welding rod tube welding Refrigerant/gas Add refrigerant to the system door fixing for reversible door Sealing tape option 41 / 42...
- Page 42 Service manual, 2016-12 Midea Refrigerators 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 42 / 42...
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