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Service Manual_2023-V1.0
Service Manual
BMF No Frost Series
Applicable Models
Model Code
Applicable Models
HS-402LWENBI
CE-BC309WE-JQ
22031010004822
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 BMF No Frost Series
- Page 1 Service Manual_2023-V1.0 Service Manual BMF No Frost Series Applicable Models Model Code Applicable Models HS-402LWENBI CE-BC309WE-JQ 22031010004822 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...
- 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_2023-V1.0 Contents 1. SIGNIFICANT UPDATE NOTES (NONE) ......................5 2. SAFETY WARNING CODE ............................6 2.1 W ARNING FOR OPERATION SAFETY ........................... 6 2.2 S AFETY INSTRUCTION FOR REFRIGERANT ......................... 8 3. INSTALLATION AND COMMISSIONING ......................9 3.1 H ANDLING ................................... 9 3.2 D ISASSEMBLY AND SSEMBLY... - Page 4 Service Manual_2023-V1.0 8.2 R ........................... 34 EPLACEMENT OF SENSORS 8.3 S ENSOR WITHOUT TERMINAL REPLACEMENT ......................35 8.4 S (R/T) ............................. 36 ENSOR RESISTANCE 9. FUNCTION AND OPERATION ..........................37 9.1 D ISPLAY OPERATION PANEL ............................. 37 9.2 D ..................................37 ISPLAY 9.3 S ETTING OF THE GEAR...
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Page 5: Significant Update Notes (None)
Service Manual_2023-V1.0 1. Significant update notes (None) -
Page 6: Safety Warning Code
Service Manual_2023-V1.0 2. Safety Warning Code 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 Service Manual_2023-V1.0 CONNECTING ELECTRICITY Electrical Shock Hazard. Failure to follow these instructions can result in death, fire, or electrical shock. Plug into a grounded 3-prong outlet. 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 8: Safety Instruction For Refrigerant
Service Manual_2023-V1.0 responsibility to comply with federal and local regulations when disposing of this product. 12) This freezer is intended to be used in household and similar environments. 13) Do not store or use gasoline or any flammable liquids inside or in the vicinity of this freezer. -
Page 9: Installation And Commissioning
Service Manual_2023-V1.0 3. Installation and commissioning 3.1 Handling Handling 1)Protect the refrigerator in moving it, Same as shown as right photo, please move it by handcart with cushion 2)Remove all packing materials and bottom cushion, then move into house for placement 3)After moving it to appropriate location, wait for 2 hours bef ore power on. - Page 10 Service Manual_2023-V1.0 Installation Steps Push the refrigerator into the cabinet and adjusted it to make the baffle flange touch the edge of the cabinet, and the supporting limit is hooked to the bottom edge of the cabinet. Fix the lower support with screws, and cover the screw cap.
- Page 11 Service Manual_2023-V1.0 Fix the top baffle to the top of the cabinet with screws, and cover the screw cap. The door of the cabinet is opened to the maximum angle, and the door of the refrigerator is opened to the corresponding position. Sliding the block to make inner edge align with the door edge, then fix the block to the door with screw and flip the edge of the slider to cover the screw cap.
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Page 12: Leveling Of The Refrigerator (None)
Service Manual_2023-V1.0 The sealing strip in the accessory is sealed in the gap between the cabinet and the refrigerator. Installation is complete. 3.4 Leveling of the refrigerator (None) 3.5 Left or right open door reversal (Option) 1. Power off the refrigerator, and remove all objects from the door trays. - Page 13 Service Manual_2023-V1.0 3. Remove the refrigerator door, the bottom hinge and the hole cover. 4. Exchange the upper hinge and bottom hinge, then assemble them. 5. Assemble the hole caps，remove the fixed block of fridge door and rotate it for 180°, assemble it on the other side of the refrigerator door.
- Page 14 Service Manual_2023-V1.0 6.Finished...
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Page 15: Main Parts And External Dimension
Service Manual_2023-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 16: External Dimension
Depth to match the cabinet (The picture is only for reference) 4.3 Midea product serial number and location 1） Product Serial Number — Including order number, production date and other information. When the product occur problem, it needs to be recorded or photographed and provided to us. - Page 17 Service Manual_2023-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 18: Electric Control System
Service Manual_2023-V1.0 5. Electric control system 5.1 Electrical parameters Applicable Model HS-402LWENBI Product Model CE-BC309WE-JQ Rated Voltage 200-240V、50Hz Item Specification Refrigerant R600a MH1050Y Compressor (Part code : 11101010015717) Starting device type Fixed Speed The COP of compressor 1.65(W/W) The max cooling capacity of compressor Rmc: 78.5Ω±7% Winding resistance of compressor wiring Rsc:... -
Page 19: Circuit Diagram
Service Manual_2023-V1.0 5.2 Circuit diagram R: Refrigerator RD: Refrigerator defrost C: Capacitor... -
Page 20: Main Control Board Structure Diagram
Service Manual_2023-V1.0 5.3 Main control board structure diagram... -
Page 21: Refrigeration System
Service Manual_2023-V1.0 6. Refrigeration system 6.1 Refrigerating piping system ❶Compressor→❷ condenser→❸Anti-condensation tube→❹ Dry filter→❺ Capillary tube→❻ Evaporator→❼ Suction tube→❶Compressor 6.2 Cooling pipeline and drain pipe inside the cabinet... -
Page 22: Circulating Route Of Cooling Air
Service Manual_2023-V1.0 6.3 Circulating route of cooling air 6.4 Welding points in chambers or foam layer 1) Welding points on refrigerator evaporator Welding point Pipe outer diameter (mm) Copper pipe: Φ6 Aluminum pipe: Φ6.35 1-Freezer capillary and inlet of evaporator Copper pipe: Φ6 Aluminum pipe: Φ6.35 2-Heat transition tube and outlet of evaporator... -
Page 23: Welding Point In The Compressor Case
Service Manual_2023-V1.0 6.5 Welding point in the compressor case Welding point Pipe outer diameter (mm) Steel pipe: Φ4.0 Copper pipe: Φ5.0 1-Outlet of anti-condensation tube and inlet of dry filter 2-Outlet of dry filter and inlet of freezer capillary Copper pipe: Φ2.8 Copper pipe: Φ1.8 3-Outlet of right condenser and inlet of anti-condensation tube Copper pipe: Φ4.0 Copper pipe: pipe:... -
Page 24: Dismantling Of Parts
Service Manual_2023-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 baffle and take it out from refrigerator liner. -
Page 25: Light System
Service Manual_2023-V1.0 Shelves 1）Lift up the division plate with a proper force and pull it out towards yourself. Drawer None 7.3 Light system Light Light of the refrigerating chamber is located upper chamber 1） Remove the lamp cover 2） Remove the LED lamp 3）... -
Page 26: Air Duct Components Refrigerating Chamber And Fan Motor
Service Manual_2023-V1.0 7.4 Air duct components refrigerating chamber and fan motor Air duct components in freezing chamber All accessories in the refrigerating chamber should be dismantled before removing the air duct components. 1）Remove 2 screws on the cover plate of the refrigerating air duct using a cross screwdriver. -
Page 27: Air Duct Components In Freezing Chamber And Fan Motor (None)
Service Manual_2023-V1.0 Fan motor of air duct 1） The fan is fastened with clasps and can be removed directly; 2）Change the fan, the reverse operation for assembly 7.5 Air duct components in freezing chamber and fan motor (None) 7.6 Evaporator and Defrost system Evaporator in refrigerating chamber Evaporator in refrigerating chamber 1）... -
Page 28: Compressor Case
Service Manual_2023-V1.0 7.7 Compressor case Rear cover and compressor case None Compressor and the cooling system pipe 1）Cut off the power, remove the goods in the refrigerator, with the tape to make the door fixed firmly and prevent the door dropping when the refrigerator dumping. - Page 29 Service Manual_2023-V1.0 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 6）Remove the protective cover -Pry the protective cover slowly from the upper part, -Pull it out and remove it.
- Page 30 Service Manual_2023-V1.0 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. 10）Use Pipe cutter cut off the condenser tube❽, then Shear off capillary ❾...
- Page 31 Service Manual_2023-V1.0 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. 14）Perfusion refrigerant. 15）Use the vise grip pliers clamp the middle of the process pipe, then seal welding process tube⓯⓰.
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Page 32: Display Control Board
Service Manual_2023-V1.0 Drain tray 1）Remove the screws from the back of cabinet assembly 2）Replace the drain tray, the reverse process can complete installation. 7.8 Display control board Display control board 1） Pry open the buckle of the display control board installation box with a straight screwdriver 2）... -
Page 33: Main Control Board
Service Manual_2023-V1.0 7.9 Main control board Main control board 1） The main control board box is located compressor case. 2） Using a cross screwdriver to remove 2 screws which secure the main control board installation box. 3） Pry open the buckle of the main control board installation box with a straight screwdriver. -
Page 34: Temperature Sensing System
Service Manual_2023-V1.0 8. Temperature sensing system 8.1 Position of sensors Position of sensors Have 3 sensors ② Sensor in refrigerating chamber ④ Ambient temperature sensor ⑥ Defrost sensor in refrigerating chamber 8.2 Replacement of sensors Sensor Sensor in refrigerating chamber 1）... -
Page 35: Sensor Without Terminal Replacement
Cut off the damaged head of sensor. Strip off the sensor wiring. Take out a new sensor to cut the head of sensor. (Spare parts code：11201007000795) Its technical specifications apply to all MIDEA refrigerators. Strip off the head of the sensor and connect it. -
Page 36: Sensor Resistance (R/T)
Service Manual_2023-V1.0 Wrap the two wires together with insulation tape. Wrap the two wires together. 8.4 Sensor resistance (R/T) Tx(℃) Tx(℃) Tx(℃) Tx(℃) Tx(℃) （KΩ） （KΩ） （KΩ） （KΩ） （KΩ） 33.81 14.31 6.495 3.141 1.617 31.85 13.55 6.175 2.999 1.55 30.01 12.83 5.873 2.865... -
Page 37: Function And Operation
Service Manual_2023-V1.0 9. Function and operation 9.1 Display operation panel Icons Button ❺ STANDBY set LED 1: COLD ❻ TEMP set LED 2:COLDER LED 3:COLDDEST LED 4: SUPER COOL 9.2 Display When powering on for the first time, the display will be complete for 3 seconds, while the startup bell will ring, and then the display will enter normal operation;... -
Page 38: Standby Function
Service Manual_2023-V1.0 9.6 Standby function 9.6.1 Enter：Hold down the standby button for 10 seconds to enter the standby mode. All loads are off and the display goes off. 9.6.2 Exit：In standby mode, hold down the standby button for 10 seconds to restore normal control. Standby mode can be remembered (note: commodity inspection process is not remembered) 9.7 Open door alarm When the refrigerator door open for 120 seconds, the buzzer will alarm until the refrigerator door is... - Page 39 Service Manual_2023-V1.0 into forced “TEMP.” button for the first time lighten , other lights are off, then the cooling mode compressor and the fan start work In forced cooling mode, if no button is The refrigerator will exit the test mode pressed within 72 hours and return to normal operation mode The indicator LED of 2、3、4 together...
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Page 40: Compressor
Service Manual_2023-V1.0 10. Compressor 10.1 Compressor on and off Control specifications 1.1 When one of the following conditions is met, the compressor stops: 1) Tr ≤ Trt； 2) The compressor runs continuously for more than 3 hours (Stop 5 minutes); 1.2 When all the following conditions are met, the compressor starts up: 1) Tr ≥Trk;... -
Page 41: Troubleshooting Method
Service Manual_2023-V1.0 11. Troubleshooting Method 11.1 No cooling (Air cooling-Electronic) -
Page 42: No Working Of Compressor
Service Manual_2023-V1.0 11.2 No working of compressor 11.3 Inside frosting, no defrosting... -
Page 43: Inside Frosting, No Defrosting-Maintenance Guidelines
Service Manual_2023-V1.0 11.4 Inside frosting, no defrosting-Maintenance guidelines... -
Page 44: Light Is Not On
Service Manual_2023-V1.0 11.5 Light is not on 11.6 Fan failure... -
Page 45: Defective Defrost Circuit
Service Manual_2023-V1.0 11.7 Defective defrost circuit 11.8 Noise... -
Page 46: Air Duct Not Operated (Electronically) (None)
Service Manual_2023-V1.0 11.9 Air duct not operated (electronically) (None) -
Page 47: Figures And Details Of Repair Parts
Service Manual_2023-V1.0 12. Figures and details of repair parts Please log in to TSP system to view and download these contents. - Page 48 MIDEA appliances after sales website For more information about Midea appliances after sales, please visit the tsp.midea.com tsp.midea.com For more information about the service manual, please visit the tsp.midea.com...
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