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Service Manual
(The picture in this service manual is
only for reference, and specific
appearance and configuration are
subject to the real product)
Applicable Models
UL-BCD636WE-ST
Prepared by
Reviewed by
Approved by
1
Service Manual_2018-V1.0
FDB SERIES
Model Code
22031040001001
R&D:Wang Jian
QA:Cheng Yi
SVC:Liu Jicheng
R&D:Chen Pingchuan
SVC:Guang Taoshuai
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Summary of Contents for Midea FDB Series
- Page 1 Service Manual_2018-V1.0 Service Manual FDB SERIES Applicable Models Model Code UL-BCD636WE-ST 22031040001001 R&D:Wang Jian Prepared by QA:Cheng Yi Reviewed by SVC:Liu Jicheng R&D:Chen Pingchuan Approved by SVC:Guang Taoshuai (The picture in this service manual is only for reference, and specific...
- Page 2 Manufacturers or distributors are not responsible for the content of the Manual and interpretation thereof. Midea Refrigerators Technical Maintenance Manual Copyright @2017 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.
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Page 3: Table Of Contents
Service Manual_2018-V1.0 Contents 1. SAFETY WARNING CODE ..........................5 1.1 W ........................ 5 ARNING FOR OPERATION SAFETY 1.2 S ...................... 7 AFETY INSTRUCTION FOR REFRIGERANT 2. DESCRIPTION FOR PRODUCT FEATURES ....................8 3. INSTALLATION AND COMMISSIONING ....................... 9 3.1 H .............................. - Page 4 Service Manual_2018-V1.0 8.7 D ........................... 27 ISPLAY CONTROL BOARD 8.8 M ..........................28 AIN CONTROL BOARD 8.9 B ............................30 AR COUNTER 8.10 W ........................... 30 ATER DISPENSER 8.11I ..............................30 CE MAKER 8.12 ............................31 WATER FILTER 9. FUNCTION AND OPERATION ........................32 9.1 O ............................
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Page 5: Safety Warning Code
Service Manual_2018-V1.0 1. Safety Warning Code 1.1 Warning for operation safety Important Safety Instructions CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol indicates that dangerous voltage constituting a risk of electric shock is present within your freezer. This symbol indicates that there are important operating and maintenance instructions in the literature accompanying your freezer. - Page 6 Service Manual_2018-V1.0 CONNECTING ELECTRICITY Electrical Shock Hazard. Failure to follow these instructions can Plug into a grounded 3-prong outlet. result in death, fire, or electrical shock. Do not remove the ground prong. Do not use an adapter. WARNING Electric Shock Hazard Failure to follow these instructions can result in electric shock, fire, or death.
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Page 7: Safety Instruction For Refrigerant
Service Manual_2018-V1.0 13) Do not store or use gasoline or any flammable liquids inside or in the vicinity of this freezer. 14) Do not use extension cords or ungrounded (two-prong) adapters with this freezer. If the power cord is too short, have a qualified electrician install an outlet near the freezer. Use of an extension cord can negatively affect the freezer’s performance. -
Page 8: Description For Product Features
Service Manual_2018-V1.0 2. Description for product features This product is provided with following features: 1） Full air-cooling and frost-free design 2）Electronic temperature control system with more accurate temperature control 3）The big freezer, may store a lot of frozen foods... -
Page 9: Installation And Commissioning
Service Manual_2018-V1.0 3. Installation and commissioning 3.1 Handling Handling 1)Protect the refrigerator in moving it,Same as shown as left photo, please move it by handcart with cushion; 2)Remove all packing materials and bottom cushion, the move into house for placement; 3)After moving it to appropriate location, wait for 2 hours before power on. -
Page 10: Leveling Of The Refrigerator
Service Manual_2018-V1.0 3.4 Leveling of the refrigerator Leveling of the refrigerator If the refrigerator cannot be placed steadily, adjust the footing to level it. 3.5 Door reversal(None) 3.6 Installation of handle Installation of handle Installation of handle None 3.7 Installation of door lock Installation of door lock Installation of door lock None... -
Page 11: Terms
Service Manual_2018-V1.0 4. Terms 4.1 Definition of model(None) 4.2 Location of nameplate(None) -
Page 12: Product Specification
Service Manual_2018-V1.0 5. Product specification 5.1 Type specification(None) 5.2 Electrical parameters Product Name UL-BCD636WE-S Product Code 22031040001001 Name Item Type Specification Specification inverter EEI76CE13DCH Compressor compressor Starter Overload MM3-71CCX protector Winding resistance of 20℃U-V12.4Ω±5% Compresso compressor 20℃V-W12.4Ω±5% wiring 20℃W-U12.4Ω±5% terminal Variable ITRP04BX1.A frequency... -
Page 13: Inside Temperature
Service Manual_2018-V1.0 refrigerating chamber The side light of 12V/≤1W refrigerating chamber Switch Switch of the M7G7-505, refrigerating Pillar switch chamber VDE，CQC door Switch of the Sector-shaped 2027 freezing chamber switch VDE，CQC Door 5.3 Inside temperature Temperature tolerance ≤ 2 Compartment The highest Lowest Freezing... -
Page 14: Circuit Diagram
Service Manual_2018-V1.0 5.5 Circuit diagram F: Freezer; R: Refrigerator; FD: Freezer Defrost; C: Condensation. -
Page 15: Internal View And Dimension
Service Manual_2018-V1.0 6. Internal view and dimension 6.1 Main parts and their names Refrigerator chamber Freezer chamber 6.2 External dimension Description Code Size (mm) Size (in) Height to Top of Case 1775 Width 35.8 Depth 29.0 Depth (135deg. with Door Open) 39.1 Width (door open 135 deg.) 1593... -
Page 16: Refrigerating Piping System And Circulating Route Of Cooling Air
Service Manual_2018-V1.0 7.Refrigerating piping system and circulating route of cooling air 7.1 Refrigerating piping system ❶→❷→❸→❹→→❺→❻→❼→❽❶Compressor→❷Condenser→❸Anti-condensation tube→❹Dry filter→❺Capillary tube→❻Evaporator→❼Suction tube→❽Compressor... -
Page 17: Circulating Route Of Cooling Air
Service Manual_2018-V1.0 7.2 Circulating route of cooling air... -
Page 18: Dismantling Of Parts
Service Manual_2018-V1.0 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 While squeezing it inward, lift up the baffle and take it out from refrigerator liner. - Page 19 Service Manual_2018-V1.0 1） pull out the upper part on the rollover beam to separate the upper part from the door; 2） pull out the whole rollover beam to seperature the lower part from the door; 3） Unplug the wire terminal, remove the rollover beam, reverse the operation to complete the installation.
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Page 20: Parts Inside The Refrigerator
Service Manual_2018-V1.0 3) Continue to pull drawer outwards so as to separate the metal guide rail; 4)Place the upper freezer drawer on ground as the way shown in the right picture; 5） )Separate the metal connection lever by pull the guide rail to the opposite direction;... -
Page 21: Light System
Service Manual_2018-V1.0 Vegetable Crisper 1) Pull outwards the vegetable crisper to the most extent; 2) Hold the handle and uplight the crisper,separate it from the guide rail. Big d rawer 1） Pull outwards the big drawer to the most extent; 2) Hold the handle and uplight the crisper ,separate it from the guide rail. -
Page 22: Air Duct And Fan Motor
Service Manual_2018-V1.0 There is 2 light switch on the left side of freezer room 1）Use slotted screwdriver pry up the light switch; 2）Disconnect the wiring connector. None Pilot light Fresh light None 8.4Air duct and fan motor Air duct components of refrigerating chamber All accessories in the refrigerating chamber should be removed before dismantling the air duct components. - Page 23 Service Manual_2018-V1.0 4）dismantle the air duct cover of refrigerator room. Air duct components in freezing chamber 1） Use cross screwdriver to rotate anticlockwise, for remove the 4 pcs screws; 2） Dismantle the air duct cover outwards; 3） pull out the fan motor and temperature sensor plug-in terminal at the upper right corner.
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Page 24: Evaporator And Temperature Sensing System
Service Manual_2018-V1.0 3） Use cross screwdriver to remove the 3 pcs screws of fan motor; 4） replace the fan in reverse steps. 8.5 Evaporator and temperature sensing system Evaporator in refrigeration chamber(None) Evaporator in freezing chamber 1） move the air duct components in freezing chamber. -
Page 25: Compressor Case
Service Manual_2018-V1.0 4） Separate the sensor and the evaporator; 5） Take off the defrost heater from the supporting plate of evaporator; 6） Take defrost heater from evaporator; 7） *Don’t break the welding of the evaporator in case that only the defrost heater needs to be replaced. - Page 26 Service Manual_2018-V1.0 1）Remove by cross screwdriver the screws fixing back cover plate of compressor chamber anticlockwise; 2）Take the back cover plate of compressor chamber upward. Starter and protector of the compressor 1）Prize up the protector cover from the red mark; 2）Remove the clipping strip;...
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Page 27: Display Control Board
Service Manual_2018-V1.0 1-Suction connection tube 5-Water tray 2-Dry filter 6-Circumflex fin condenser 3-Constant speed reciprocating compressors 7-Anti-condensation tube 4-Condenser fan 8-Drain 9-Water valve 8.7 Display control board Display control board and refrigerator top light 1. Control panel with cross screw driver; 2. -
Page 28: Main Control Board
Service Manual_2018-V1.0 5. Remove display control cover and detach display and control PCB board; 6. Remove the fastener around the transparent cover of display and control panel with straight screwdriver and take off the transparent cover; 7. Push aside the fastener around LED light panel and detach the LED light panel. - Page 29 Service Manual_2018-V1.0 1. Power 12. Condensate fan 2.Freezing defrost heater 13. display control panel 3.Water valve 14. Variable frequency driver board 4. Flipping beam heating wire Temperature sensor 5. Refrigeration left side light 16. refrigeration sensor 6. Top light of refrigeration chamber 17.
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Page 30: Bar Counter
Service Manual_2018-V1.0 1. Connect compressor 2. Connect power 3. Receive a signal sent by main control board 8.9 Bar counter Bar counter Disassembly and installation of bar counter None Disassembly and installation bar doorseal None 8.10 Water dispenser Water dispenser Disassembly and installation of water valve None Disassembly and installation of water tank... -
Page 31: Water Filter
Service Manual_2018-V1.0 2) disconnect the wiring connector; 3) The reverse process can complete installation. 8.12water filter Disassembly and installation of water filter component(None) Disassembly and installation of water filter cartridge(None) -
Page 32: Function And Operation
Service Manual_2018-V1.0 9. Function and operation 9.1 Operation panel UL-BCD636WE-ST_22031040001001 Inner display: Ice maker mode Super cool mode bottom Refrigeration attemperation bottom Refrigeration Temp display area Freezing Temp display area 6. Freezing up-attemperation bottom 7. Super freeze mode bottom 8.Lock bottom and unlock bottom 9.2 Display 1) Electricity for the first time, all show for 3 seconds, at the same time the bell boot ring, then enter the normal operation of the display. -
Page 33: Mode Setting
Service Manual_2018-V1.0 the temperature can be set circularly, every time press the key , the setting temperature turn 1℃（℉）-14℃ →-15℃→→→→-22℃ 7℉→6℉→→→→-7℉ -22℃→-21℃→-20℃→→→→-14℃ -7℉→-6℉→→→→7℉ 2、 Operation instruction : Press the “freezing” bottom once, the set temperature of the freezing chamber’s temperature area can be regulated. -
Page 34: Fault Code And Solutions
Service Manual_2018-V1.0 9.5 Fault code and solutions Code Fault code Fault content Steps for maintenance methods visible Step 1: Check whether the terminal CN1 is well stuck, pull out the terminal and re-stick it in place Step 2: Check to see if there’re foreign matters on the Temperature sensor fault in terminal. -
Page 35: Defrosting Function
Service Manual_2018-V1.0 sensor. Step 1: Check whether the terminal CN12 of main control board is well stuck, pull out the terminal and Ice maker fault re-stick it in place and check if there is any foreign matter on the terminal Step 2: Check whether the terminal of ice maker is well Variable frequency driver board fault analysis Variable frequency driver board LED... -
Page 36: Test Mode
Service Manual_2018-V1.0 3) Compressor stopped twice continuously, after enter defrost mode, according to using condition and ambient temperature in a period from 6 to 48 hours as per the accumulative operation time of the Compressor. 9.7 Test mode Test items Testing Method Expected result First, keep pressing the “LOCK”... -
Page 37: Circuit Description
Service Manual_2018-V1.0 10. Circuit description 10.1 Sensor resistance(R/T) Tx(℃) Tx(℉) R（KΩ） Tx(℃) Tx(℉) R（KΩ） Tx(℃) Tx(℉) R（KΩ） Tx(℃) Tx(℉) R（KΩ） Tx(℃) Tx(℉) R（KΩ） -22.00 33.81 5.00 14.310 32.00 6.495 59.00 3.141 86.00 1.617 -20.20 31.85 6.80 13.550 33.80 6.175 60.80 2.999 87.80 1.550... -
Page 38: Troubleshooting Method
Service Manual_2018-V1.0 11. Troubleshooting Method 11.1 No cooling(Air cooling-Electronic) -
Page 39: No Working Of Compressor
Service Manual_2018-V1.0 11.2 No working of compressor 11.3 Inside frosting, no defrosting... -
Page 40: Inside Frosting, No Defrosting-Maintenance Guidelines
Service Manual_2018-V1.0 11.4 Inside frosting, no defrosting-Maintenance guidelines... -
Page 41: Light Is Not On
Service Manual_2018-V1.0 11.5 Light is not on 11.6 Air duct not operated(electronically) -
Page 42: Fan Failure
Service Manual_2018-V1.0 11.7 Fan failure 11.8 Defective defrost circuit... -
Page 43: Noise
Service Manual_2018-V1.0 11.9 Noise... -
Page 44: Figures And Details Of Repair Parts (Documents Are Provided In The Tsp)
Service Manual_2018-V1.0 12. Figures and details of repair parts (Documents are provided in the TSP) -
Page 45: Appendix
Service Manual_2018-V1.0 13. Appendix 13.1 Refrigerator maintenance tooling and equipment and material Tooling Name Main Usage Photo screw assemble and Phillips screwdriver disassemble slotted screw and rivet assemble and screwdriver/scraper disassemble hinge and compressor screw Socket spanner 5/16″ assemble and disassemble display panel and air duct cover Sucker disassemble... - Page 46 Service Manual_2018-V1.0 Capillary tube scissors Shear capillary Knife assistive tool Pipe cutter, Flaring Pipe cutting，flaring device Electronic digital Test temperature thermometer Measurement with resistance, Multi meter voltage, current and so on. Equipment Name Main Usage Photo Vacuum pump with vacuum pumping gauge Electronic scale weighing refrigerant/gas...
- Page 47 Service Manual_2018-V1.0 Connection process pipeline, Quick coupling vacuum or charge refrigerant will be used. Soldering gun heating and welding welding point leakage detect, if hand leak detector no, use soap-suds Material Name Main Usage Photo Process pipeline Charge the refrigerant Involving a system failure to be Dry filter...
- Page 48 Service Manual_2018-V1.0 Aluminium-Aluminium tubes Transition copper pipe welding, maintain lengthen tubes...
- Page 49 MIDEA appliances after sales website For more information about Midea appliances after sales, please visit the tsp.midea.com For more information about the service manual, please visit the tsp.midea.com For more information about the EV and SBOM, please visit the tsp.midea.com...
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