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Service Manual_2020-V3.0
Service Manual
BMF No Frost Series
Applicable Models
Model Code
Applicable Models
HD-332RWN
CE-BCD255WE-JT
22031020008081
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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Table of Contents
Related Manuals for Midea BMF No Frost Series
Summary of Contents for Midea BMF No Frost Series
- Page 1 Service Manual_2020-V3.0 Service Manual BMF No Frost Series Applicable Models Model Code Applicable Models HD-332RWN CE-BCD255WE-JT 22031020008081 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_2020-V3.0 Contents 1. SIGNIFICANT UPDATE NOTES (NONE) ......................5 2. SAFETY WARNING CODE ............................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 ........................ - Page 4 Service Manual_2020-V3.0 ........................... 37 8.2 R EPLACEMENT OF SENSORS 8.3 S ......................38 ENSOR WITHOUT TERMINAL REPLACEMENT (R/T) ............................. 39 8.4 S ENSOR RESISTANCE 9. FUNCTION AND OPERATION ..........................40 ............................. 40 9.1 D ISPLAY OPERATION PANEL ..................................40 9.2 D ISPLAY 9.3 S .............................
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Page 5: Significant Update Notes (None)
Service Manual_2020-V3.0 1. Significant update notes (None) -
Page 6: Safety Warning Code
Service Manual_2020-V3.0 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_2020-V3.0 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 8: Safety Instruction For Refrigerant
Service Manual_2020-V3.0 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_2020-V3.0 3. Installation and commissioning 3.1 Handling Handling 1)Protect the refrigerator in moving it,Same as shown as lef t photo, please move it by handcart with cushion 2)Remove all packing materials and bottom cushion, the m ove into house for placement 3)After moving it to appropriate location, wait for 2 hours bef ore power on. - Page 10 Service Manual_2020-V3.0 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_2020-V3.0 Fix the top baffle to the top of the cabinet with screws, and cover the screw cap. The lower door of the cabinet is opened to the maximum angle, and the lower 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 cover the screw cap.
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Page 12: Leveling Of The Refrigerator
Service Manual_2020-V3.0 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 Leveling of the refrigerator If the refrigerator cannot be placed steadily, adjust the footing to level it. -
Page 13: Left Or Right Open Door Reversal
Service Manual_2020-V3.0 3.5 Left or right open door reversal 1. Power off the refrigerator, and remove all objects from the door trays. 2. Remove the upper hinge and hole caps of refrigerator door. 3. Remove the refrigerator door, the bottom hinge and the hole cover. - Page 14 Service Manual_2020-V3.0 5. Remove the fixed block of refrigerator door and rotate it for 180° , assemble it on other side of refrigerator door. 6. Remove the upper hinge of refrigerator door. 7. Remove the freezer door, the bottom hinge and the hole caps.
- Page 15 Service Manual_2020-V3.0 8. Exchange the F bottom hinge and F:upper hinge ,then assemble them. 9. Remove the fixed block of refrigerator door and rotate it for 180° ，assemble it on other side of refrigerator door. 10.Finished...
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Page 16: Main Parts And External Dimension
Service Manual_2020-V3.0 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 17: 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 18 Service Manual_2020-V3.0 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 19: Electric Control System
Service Manual_2020-V3.0 5. Electric control system 5.1 Electrical parameters 市场型号 Applicable Model HD-332RWEN 产品型号 Product Model CE-BCD255WE-JT 产品编码 Product code 22031020008081 额定电压 Rated Voltage 200-240V、50Hz 项目 规格 Item Specification 制冷剂 Refrigerant R600a PZ75H1X 压缩机型号和品牌 Compressor (Part code : 11101010001986) 压缩机驱动类型 定速... -
Page 20: Circuit Diagram
Service Manual_2020-V3.0 冷冻室灯 Lights inside the freezing None chamber 其它灯 None Others Lights ■ 冰箱灯开关 机械 Mechanical switch Switch of the light □ 磁控 Magnetism control switch 化霜部件 Defrosting parts 化霜传感器 型号：NTC B3839 ( B5/25=3839K± 2% ) Defrosting sensor 冷冻室化霜熔断器 Fuse in freezing 230V、77(0 ～... -
Page 21: Main Control Board Structure Diagram
Service Manual_2020-V3.0 5.3 Main control board structure diagram Connecting terminals Connecting terminals 1.Power supply 8. Ambient temperature sensor 2. Compressor Refrigerator defrost sensor 3. Compensation heater 10. Refrigeration temperature sensor 4. Freezing defrost heater 11. Freezing defrost sensor 5. Fan of freezing chamber 12. -
Page 22: Refrigeration System
Service Manual_2020-V3.0 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 23: Circulating Route Of Cooling Air
Service Manual_2020-V3.0 6.3 Circulating route of cooling air 6.4 Welding points in chambers or foam layer 1) Welding points on freezer 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 24: Welding Point In The Compressor Case
Service Manual_2020-V3.0 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 Copper pipe: Φ6.0 Copper pipe: Φ6.0 2-Heat transition tube and Suction connection tube Copper pipe: Φ2.8 Copper pipe: Φ1.8 3-Outlet of dry filter and inlet of freezer capillary... -
Page 25: Dismantling Of Parts
Service Manual_2020-V3.0 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 26: Light System
Service Manual_2020-V3.0 Shelves 1）Lift up the division plate with a proper force and pull it out towards yourself. Drawer The drawer is located at the bottom of freezing chambers; 1） Pull the drawer out completely; Lift it up slightly and take it out from the refrigerator. 7.3 Light system Light Light of the refrigerating chamber is located upper... -
Page 27: Air Duct Components Refrigerating Chamber And Fan Motor
Service Manual_2020-V3.0 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. 7.4 Air duct components refrigerating chamber and fan motor Air duct components in freezing chamber All accessories in the freezing chamber should be dismantled before removing the air duct components. -
Page 28: Air Duct Components In Freezing Chamber And Fan Motor
Service Manual_2020-V3.0 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 Air duct components in freezing chamber All accessories in the freezing chamber should be dismantled before removing the air duct components. -
Page 29: Evaporator And Defrost System
Service Manual_2020-V3.0 7.6 Evaporator and Defrost system Evaporator in freezing chamber 1） Remove the air duct components in freezing chamber. 2） Disconnect all connectors. 3） Remove the welding on inlet and outlet tubes. 4） Remove one screws which are used to fix the evaporator and remove the evaporator. -
Page 30: Compressor Case
Service Manual_2020-V3.0 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. 2）... - Page 31 Service Manual_2020-V3.0 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 32 Service Manual_2020-V3.0 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 33 Service Manual_2020-V3.0 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.
- Page 34 Service Manual_2020-V3.0 Drain tray 1）Disengage the drain tray buckle out of the compressor bottom plate installation hole. 2）Replace the drain tray, the reverse process can complete installation. 3） Remove the screws from the back of cabinet assembly 4）Replace the drain tray, the reverse process can complete installation.
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Page 35: Display Control Board
Service Manual_2020-V3.0 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） Pull all connector terminals out; 3） Remove 2 screws using a cross screwdriver to remove the display control board;... -
Page 36: Main Control Board
Service Manual_2020-V3.0 7.9 Main control board Main control board 1） The main control board box is located compressor case 2） Remove 2 screws using a cross screwdriver 3） Pry open the buckle of the main control board installation box with a straight screwdriver 4）... -
Page 37: Temperature Sensing System
Service Manual_2020-V3.0 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 Sensor in Variable temperature chamber ④ Ambient temperature or humidity sensor ⑤ Ice machine sensor ⑥... -
Page 38: Sensor Without Terminal Replacement
Service Manual_2020-V3.0 Defrost sensor in refrigerating chamber Before remove the sensor, the refrigerating duct assembly should be removed Ambient temperature sensor Sensor position in the upper of the box Defrost sensor The defrost sensor is located on top of the evaporator. 1）... -
Page 39: Sensor Resistance (R/T)
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. Wrap the two wires together with insulation tape. -
Page 40: Function And Operation
Service Manual_2020-V3.0 9. Function and operation 9.1 Display operation panel Icons Button ❶ One gear ❺ Gear set button ❷ Two gear ❸ Three gear ❹ Four gear 9.2 Display At the first time of power-on, the display screen will be bright for 3 seconds and then according to the three gear to show operation Normal operation display: 1）When failure occurs, the corresponding LED light group will display fault code (circular display);... -
Page 41: Lock And Unlock Settings
Service Manual_2020-V3.0 9.4 lock and unlock Settings In the lock state, long press the SET key for 3 seconds to unlock the device before it can operate. When the unlock is effective, all LED lights will flash for 2 times. In the lock state, all LED lights will flash for 2 s econds to remind the user to unlock the device first. -
Page 42: Defrosting Function
Service Manual_2020-V3.0 refrigerating sensor according to the method in described in Article 8.5 and then inspect the sensor against the resistance value table in 10.8. Step 3: Replace main control board Step 4: Replace electrical wiring main harness Step 1: Check whether the terminal CN8 is well stuck, pull out the terminal and re-stick it in place Step 2: Check to see if there are foreign... -
Page 43: Test Mode
Service Manual_2020-V3.0 9.11 Test mode Test items Testing Method Expected result The LED lights indicate ON means changing it to flashing mode after press “SET” key 20s under the The refrigerator enters into testing mode when condition of temperature the LED lights are off adjustment. -
Page 44: Compressor
Service Manual_2020-V3.0 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 45: Troubleshooting Method
Service Manual_2020-V3.0 11. Troubleshooting Method 11.1 No cooling (Air cooling-Electronic) -
Page 46: No Working Of Compressor
Service Manual_2020-V3.0 11.2 No working of compressor 11.3 Inside frosting, no defrosting... -
Page 47: Inside Frosting, No Defrosting-Maintenance Guidelines
Service Manual_2020-V3.0 11.4 Inside frosting, no defrosting-Maintenance guidelines... -
Page 48: Light Is Not On
Service Manual_2020-V3.0 11.5 Light is not on 11.6 Fan failure... -
Page 49: Defective Defrost Circuit
Service Manual_2020-V3.0 11.7 Defective defrost circuit 11.8 Noise... -
Page 50: Air Duct Not Operated(Electronically) (None)
Service Manual_2020-V3.0 11.9 Air duct not operated(electronically) (None) -
Page 51: Figures And Details Of Repair Parts
Service Manual_2020-V3.0 12. Figures and details of repair parts Please log in to TSP system to view and download these contents. - Page 52 MIDEA appliances after sales website tsp.midea.com 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...