Midea SBS Series Service Manual
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Service Manual_2022-V1.0
Service Manual
SBS Series
Applicable Models
Product Models
Applicable Models
HC-689WEN
CE-BCD530WE-JT
22031050001522
The picture in this service manual is only for reference, and specific appearance
and configuration are subject to the real product.
This manual mainly teaches the method, the specific work skill needs engineer
to accumulate through the daily work.
1
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Summary of Contents for Midea SBS Series
- Page 1 Service Manual_2022-V1.0 Service Manual SBS Series Applicable Models Product Models Applicable Models HC-689WEN CE-BCD530WE-JT 22031050001522 The picture in this service manual is only for reference, and specific appearance and configuration are subject to the real product. This manual mainly teaches the method, the specific work skill needs engineer...
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Page 2: Important Safety Notice
Service Manual_2022-V1.0 WARNING Important Safety Notice There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. -
Page 3: Table Of Contents
Service Manual_2022-V1.0 Contents SIGNIFICANT UPDATE NOTES (NONE) ......................5 2. SAFETY WARNING ............................... 6 2.1 W ........................... 6 ARNING FOR OPERATION SAFETY 2.2 S ......................... 8 AFETY INSTRUCTION FOR REFRIGERANT 3. INSTALLATION AND COMMISSIONING ......................9 3.1 H ................................... 9 ANDLING 3.2 D ........................ - Page 4 Service Manual_2022-V1.0 7.9 C ..............................29 OMPRESSOR CASE 7.10 ............................34 DISPLAY CONTROL BOARD 7.11 M ..................35 AIN CONTROL BOARD AND NVERTER DRIVER BOARD 7.12 W ） ........................... 37 ATER DISPENSER （O PTION 8. TEMPERATURE SENSING SYSTEM ......................... 38 8.1 P ............................
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Page 5: Significant Update Notes (None)
Service Manual_2022-V1.0 1. Significant update notes (None) -
Page 6: Safety Warning
Service Manual_2022-V1.0 2. Safety Warning 2.1 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 7: Connecting Electricity
Service Manual_2022-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. -
Page 8: Grounding Requirement
Service Manual_2022-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 9: Installation And Commissioning
Service Manual_2022-V1.0 3. Installation and commissioning 3.1 Handling Handling Protect the refrigerator in moving it,Same as shown as left photo, please move it by handcart with cushion Remove all packing materials and bottom cushion, the move into house for placement After moving it to appropriate location, wait for 2 hou rs before power on. - Page 10 Service Manual_2022-V1.0 Disassembly of refrigerator door 1) Use screwdriver to remove the 2 pcs screws, and then remove the upper hinge cover. 2) Use cross screwdriver or socket spanner to remove the 2 pcs M5 screws by anticlockwise, and then remove the upper hinge.
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Page 11: Installation Location
Service Manual_2022-V1.0 3.3 Installation location Installation location Please select a ventilated place to place the refrigerator, and reserve space according to the recommended size in the picture, which is conducive to heat dissipation, performance improvement and energy consumption reduction. 3.4 Leveling of the refrigerator Leveling of the refrigerator If the refrigerator cannot be placed steadily, adjust the footing to level it. - Page 12 Service Manual_2022-V1.0 1) Refrigerator door lower: loosen locking nut counterclockwise, then rotate the adjusting nut counterclockwise to adjust the height of door, at last tighten the locking nut clockwise. 2) Refrigerator door higher: loosen locking nut counterclockwise firstly, then rotate the adjusting nut clockwise, at last tighten the locking nut clockwise.
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Page 13: Main Parts And External Dimension
Service Manual_2022-V1.0 4. Main parts and external dimension 4.1 Main parts (The picture is only for reference, and specific appearance and configuration are subject to the real product) -
Page 14: External Dimension
Service Manual_2022-V1.0 4.2 External dimension Description Code Size (mm) 1765 Height to top of cabinet Width Depth w/Handle Depth w/Handle 1129 Depth (Door open 90 deg. w) Width (Door open 90 deg. w) Depth (Door open 130 deg. w) 1035 Width (Door open 130 deg. - Page 15 Service Manual_2022-V1.0 2）Paste location Some products also have S/N on the lower part of the right side of the Cabinet.
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Page 16: Electric Control System
Service Manual_2022-V1.0 5. Electric control system 5.1 Electrical parts parameters Applicable Model HC-689WEN Product Model CE-BCD530WE-JT Rated Voltage 220V-240V~50/60Hz Item Specification Specification Refrigerant R600a DZ100A1G-4CPL Compressor (Part code : 11101020005644) Starting device type DC Inverter The COP of compressor 1.78 (W/W) The max cooling capacity of 255W compressor... -
Page 17: Circuit Diagram
Service Manual_2022-V1.0 Lights inside the freezing chamber DC12V、≤2.5W Lights inside the refrigerating DC12V、≤2.5W chamber Others Lights None ■ Switch of the lights Mechanical switch □ Magnetism control switch Other electrical parts Water valve None Water pump None Electric exchange valve None Defrosting parts Defrosting sensor... -
Page 18: Main Pcb Terminal Connection Diagram
Service Manual_2022-V1.0 5.3 Main PCB terminal connection diagram Connecting terminals Connecting terminals 1. Power supply 9. Freezing defrost sensor 2. Freezing frost heater 10. Inverter board 3. Compressor 11. Freezing fan motor... -
Page 19: Inverter Board Terminal Connection Diagram（Option
Service Manual_2022-V1.0 4. Freezing chamber light switch 12. Freezing chamber light 5. Ambient temperature sensor 13. Refrigerating chamber light 6. Freezing temperature sensor 14. Display control panel 7. Refrigerating sensor 15. Electric damper 8. Refrigerating chamber light switch 5.4 Inverter board terminal connection diagram（Option） NO. -
Page 20: Refrigeration System
Service Manual_2022-V1.0 6. Refrigeration system 6.1 Refrigeration system working principle 1.Compressor→2.Exhaust transition pipe→3.Left condenser→4.Anti-condensationg tube→5.Right condenser→6.Dry filter→7.Capillary tube→8.Evaporator→9.Return pipe→10.Return transition pipe→1.Compressor 6.2 Cooling pipeline and drain pipe inside the cabinet... -
Page 21: Circulating Route Of Cooling Air
Service Manual_2022-V1.0 6.3 Circulating route of cooling air Air intake Air outlet 6.4 Welding points in chambers or foam layer Welding points on freezer evaporator Welding point Pipe outer diameter (mm) 1-Freezing capillary and inlet of evaporator Aluminum pipe: Φ8 Copper pipe: Φ4.6 （外径）... -
Page 22: Welding Point In The Compressor Case
Service Manual_2022-V1.0 6.5 Welding point in the compressor case Welding point Pipe outer diameter (mm) 1-outlet of Suction connection tube and inlet of Compressor Copper pipe: Copper pipe: Φ6 Φ6.17（内径） 2-outlet of Compressor and inlet of Component supplying Copper pipe: Steel pipe: Φ4 pipe connector Φ4.93（内径）... -
Page 23: Dismantling Of Parts
Service Manual_2022-V1.0 7. Dismantling of parts 7.1 Parts on the door Door seal Door seal is installed into door liner groove. 1)Open the refrigerator door; 2)Take the door seal ① out of door liner; Door tray While squeezing it inward, lift up the door tray and take it out from door liner. -
Page 24: Light System
Service Manual_2022-V1.0 7.3 Light system Light Light of the refrigerating 1）Turn over the lampshade hard with two flat-blade screwdrivers at two grooves marked with red circles shown in the picture and take it down 2）Push away the hook with your hand along the arrow direction shown in the picture and separate LED light panel from the hook;... -
Page 25: Air Duct Components Refrigerating Chamber And Fan Motor
Service Manual_2022-V1.0 7.4 Air duct components refrigerating chamber and fan motor Air duct components refrigeratingchamber 1） Remove by cross screwdriver the screws on the positions shown in the picture anticlockwise. 2） Pull the decoration cover of refrigerating air duct to the right along horizontal direction, take out the decoration cover of refrigerating air duct. -
Page 26: Ice Maker（None
Service Manual_2022-V1.0 Electric damper Tear off the adhesive tape, open the foam and remove the electric damper to complete the replacement. Fan motor of air duct None 7.5 Ice maker（None） 7.6 Crashing ice motor（None） 7.7 Air duct components in freezing chamber and fan motor Air duct components in freezing chamber 1）... - Page 27 Service Manual_2022-V1.0 4）Hold the front cover and pull outwards with big force until it is separated from the liner. 5）Unlock all plastic hooks of back cover, then take it out. 6） Unplug the connecting terminals. 7） After the removal of upper air duct in freezing chamber.
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Page 28: Evaporator And Defrost System
Service Manual_2022-V1.0 Fan motor of air duct 1） After the removal of cover plate of upper air duct in freezing chamber. Pull the motor fan outward to make the fan blade separate from the motor. 2） Remove by screwdriver the two fixing screws. Complete disassembly of the motor 7.8 Evaporator and Defrost system Evaporator in freezing chamber... -
Page 29: Compressor Case
Service Manual_2022-V1.0 This defrost heater with defrost sensor and fuse can be dismantled separately, it DOES NOT need to replace the evaporator assembly if only heater fail to work. Defrosting fuse ① Defrost sensor ② Defrost heater ③ 1）Disconnect the connecting terminals. 2）Cut off the band. - Page 30 Service Manual_2022-V1.0 Piping and parts in the compressor case ① Compressor ⑦ Suction pipe ② Compresssor suction pipe ⑧ Right condenser ③ Component supplying pipe connector ⑨ Anti-water condensation pipe ⑪ Filter ④ Left condenser ⑩ Right condenser ⑫ Capillary ⑤...
- Page 31 Service Manual_2022-V1.0 3） Cut off the compressor pipeline.-❶Cut off the process pipeline.-❷Cut off the low-pressure muffler.-❸Cut off the high-pressure exhaust pipe. 4-1）Remove the screws(for some models) -Two screws outside -One screw inside 4-2）Remove the metal clamp(for some models) -Disassembly the metal clamp that is fix the electric appliance shield 5）Remove the clipping strip Slowly pull it out...
- Page 32 Service Manual_2022-V1.0 7）Remove the starter and protector Unplug the starter and protector (you can use a screwdriver to pry it slowly) 8）Loosen the screw of the compressor bottom plate, remove the floor together with the compressor from the box. 9）Use the wrench to remove the bolts by steps❹❺❻❼, replace the compressor and reverse process can complete installation.
- Page 33 Service Manual_2022-V1.0 11） Replace the compressor and welding the compressor pipeline.-❿Welding the process pipeline.-⓫Welding the low-pressure muffler.-⓬Welding the high-pressure exhaust pipe. 12）Replace the filter, Cu-Fe tubes welding ⓭ used Ag welding rod, Cu-Cu tubes welding ⓮ used Cu welding rod. 13）Vacuum system,The degree of vacuum below 6Pa.
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Page 34: Display Control Board
Service Manual_2022-V1.0 Drain tray 1）Remove the bottom screws of the compressor bottom plate 2）Replace the drain tray, the reverse process can complete installation. 7.10 display control board Display control board 1）Use the tool to lift downwards from the top of the display sticker. -
Page 35: Main Control Board And Inverter Driver Board
Service Manual_2022-V1.0 3）Remove 1 screw to open 5 jaws。 NOTE :The ambient temperature sensor is integrated on display PCB 7.11 Main control board and Inverter driver board Main PCB and variable frequency driver board 1)Remove the 3 fixing screws, take out the components, and remove the upper and lower main control board covers。... - Page 36 Service Manual_2022-V1.0 2)Disconnect all the wiring connectors. The connecting terminals remove： a. Use a needle tool to remove the lock at the arrow and remove the lock upward; b. After the lock is removed, press the hook to remove the wiring connectors 3)Remove the screws and the lock then remove the main PCB and variable frequency driver board.
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Page 37: Water Dispenser（Option
Service Manual_2022-V1.0 7.12 Water dispenser（Option） Water dispenser Disassembly and installation of water tank The water tank is installed on the right side of the refrigerator. Hold both hands to both sides of the water tank when disassembling, then pull the water tank out along the 45-degree direction. -
Page 38: Temperature Sensing System
Service Manual_2022-V1.0 8. Temperature sensing system 8.1 Position of sensors Position of sensors Have 4 sensors ① Sensor in freezing chamber ② Sensor in refrigerating chamber ③ Ambient temperature or humidity sensor ④ Defrost sensor freezing chamber 8.2 Replacement of sensors Sensor in freezing chamber 1）To remove the sensor cover, you may squeeze it up and down;... -
Page 39: Sensor Without Terminal Replacement
Service Manual_2022-V1.0 Refer to the method of disassembling the freezer compartment sensor. Ambient temperature and humidity sensor The sensor used for measurement of ambient temperature is located within upper hinge cover of refrigerating chamber door; Defrost sensor in freezing chamber The defrost sensor is located on top of the evaporator. -
Page 40: Sensor R/Ttable
Service Manual_2022-V1.0 Strip off the sensor wiring. Take out a new sensor to cut the head of sensor. (Spare parts code：11201007000795) Strip off the head of the sensor and connect it. Wrap the two wires together with insulation tape. Wrap the two wires together. 8.4 Sensor R/T table Tx(℃) Tx(℉) - Page 41 Service Manual_2022-V1.0 -7.60 21.18 37.40 5.587 82.40 1.761 -5.80 20.01 39.20 5.315 84.20 1.687 -4.00 18.90 41.00 5.060 86.00 1.617 -2.20 17.87 42.80 4.818 87.80 1.550 -0.40 16.90 44.60 4.589 89.60 1.486 1.40 15.98 46.40 4.372 91.40 1.426 3.20 15.12 48.20 4.167 93.20...
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Page 42: Function And Operation
Service Manual_2022-V1.0 9. Function and operation 9.1 Display operation panel Icons Button A. Temperature up Refrigerator B. Temperature range selection Freezer C. Temperature down Super cool D. Mode / function setting Super freezer E. LOCK/UNLOCK Lock/unlock Vacation 9.2 Temperature control 9.2.1 Temperature setting of refrigerating chamber The temperature setting range of refrigerating chamber is 2℃... -
Page 43: Mode Setting
Service Manual_2022-V1.0 The temperature setting range of freezer chamber is -24℃～-16℃. The temperature can be set circularly, press the button “Freezer” once, the temperature turn by 1℃. The setting is effective after being locked. -16℃→ -17℃→……...→ -24℃→ -23℃→ -22℃→……..→ -16℃ 9.3 Mode setting 9.3.1 Super Cooling 、... -
Page 44: Open Door Alarm
Service Manual_2022-V1.0 9.5 Open door alarm When the refrigerators door or freezer doors are opened, the light inside the cabinet will turn on, a notification tone will sound. Press the button "Λ" and "∨" at the same time for 3 seconds, you can turn this tone off or on. - Page 45 Service Manual_2022-V1.0 multimeter to check the resistance value of the wire between the display control board and the main PCB to see if it is broken. If test value is ∞Ω, the wire is broken.(If the wire in the door is broken, replace the door.
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Page 46: Test Mode
Service Manual_2022-V1.0 9.7 Test mode This function is only used during the maintenance test. After the test is completed, the refrigerator needs to be powered off and then on again. Test items Setting Method Setting result Unlock, press the “UNLOCK” and LED indicators display “0”, then the “TEMP. -
Page 47: Backup Data For Power Fail
Service Manual_2022-V1.0 9.10 Backup data for power fail The running state of the refrigerator is remembered after compressor running for 1 hour continuously. The running state of the refrigerator is remembered after change function settings and lock. When the refrigerator is out of power and recharged, the running state of the refrigerator is same as before . -
Page 48: Compressor
Service Manual_2022-V1.0 10. Compressor... -
Page 49: Troubleshooting Method
Service Manual_2022-V1.0 11. Troubleshooting Method 11.1 No cooling (Air cooling-Electronic) - Page 50 Service Manual_2022-V1.0...
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Page 51: No Working Of Compressor
Service Manual_2022-V1.0 11.2 No working of compressor... -
Page 52: Inside Frosting, No Defrosting
Service Manual_2022-V1.0 11.3 Inside frosting, no defrosting... -
Page 53: Inside Frosting, No Defrosting-Maintenance Guidelines
Service Manual_2022-V1.0 11.4 Inside frosting, no defrosting-Maintenance guidelines... -
Page 54: Light Is Not On
Service Manual_2022-V1.0 11.5 Light is not on... -
Page 55: Fan Failure
Service Manual_2022-V1.0 11.6 Fan failure 11.7 Defective defrost circuit... -
Page 56: Noise
Service Manual_2022-V1.0 11.8 Noise 11.9 Air duct not operated...
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