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Service Manual_2020-V1.0
Service Manual
Upright Freezer Series
Applicable Models
Product Models
Applicable Models
HS-312FWEN
UR-BD240WE-ST 22031010001721
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 UR-BD240WE-ST
- Page 1 Product Models Applicable Models HS-312FWEN UR-BD240WE-ST 22031010001721 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...
- 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-V1.0 Contents SIGNIFICANT UPDATE NOTES (NONE) ......................5 2. SAFETY WARNING ............................... 6 2.1 W ........................... 6 ARNING FOR OPERATION SAFETY ......................... 8 2.2 S AFETY INSTRUCTION FOR REFRIGERANT 3. INSTALLATION AND COMMISSIONING ......................9 ................................... 9 3.1 H ANDLING 3.2 D ........................ - Page 4 Service Manual_2020-V1.0 8. TEMPERATURE SENSING SYSTEM ......................... 35 ............................35 8.1 P OSITION OF SENSORS ........................... 35 8.2 R EPLACEMENT OF SENSORS 8.3 S ......................36 ENSOR WITHOUT TERMINAL REPLACEMENT 8.4 S ..............................37 ENSOR TABLE 9. FUNCTION AND OPERATION ..........................39 .............................
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Page 5: Significant Update Notes (None)
Service Manual_2020-V1.0 1. Significant update notes (None) -
Page 6: Safety Warning
Service Manual_2020-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 Service Manual_2020-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 8: Safety Instruction For Refrigerant
Service Manual_2020-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_2020-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: Leveling Of The Refrigerator
Service Manual_2020-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. Turn the feet clockwise to raise the refrigerator; turn the feet counterclockwise to lower the refrigerator. 3.5 Left or right open door reversal（Option）... - Page 11 Service Manual_2020-V1.0 4)Dismantle the door and right bottom hinge assembly(hinge shaft &adjustable foot &hinge), disassemble the right bottom hinge assembly and assemble the hinge shaft and adjustable foot on the other side of hinge, then assemble the whole hinge assembly on the other side of refrigerator. 5）Remove the door upper cover, install the upper hinge sleeve, door signal line to the other side and install the door upper cover.
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Page 12: Installation Of Handle（Option
Service Manual_2020-V1.0 3.6 Installation of handle（Option） Installation of handle Installation of handle 1) Precautions shall be taken to prevent fall of the handle from causing any personal injury. 2) Assembly steps a、Use allen wrench to fix screws into the screw hole tightly. -
Page 13: Main Parts And External Dimension
Service Manual_2020-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) (The picture is only for reference, and specific appearance and configuration are subject to the real product) -
Page 14: External Dimension
(The picture is only for reference, and specific appearance and configuration are subject to the real product) 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 15 Service Manual_2020-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_2020-V1.0 5. Electric control system 5.1 Electrical parts parameters HS-312FWEN Applicable Model UR-BD240WE-ST Product Model 22031010001721 Product code Rated Voltage 115V、60Hz Item Specification Refrigerant R600a EZ65H1Y Compressor (Part code : 11101010006245) Starting device type Fixed Speed The COP of compressor 1.95 (W/W) - Page 17 Service Manual_2020-V1.0 ■ Mechanical switch Switch of the light □ Magnetism control switch Defrosting parts Defrosting sensor NTC B3839 ( B5/25=3839K± 2% ) 115V、77(0 ～ -5) ℃ Fuse in freezing chamber Defrost heater in freezing chamber 115V、320W...
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Page 18: Circuit Diagram
Service Manual_2020-V1.0 5.2 Circuit diagram F: Freezer FD: Freezer Defrost A: Ambient temperature... -
Page 19: Main Pcb Terminal Connection Diagram
Service Manual_2020-V1.0 5.3 Main PCB terminal connection diagram 5.4 Inverter board terminal connection diagram（None）... -
Page 20: Refrigeration System
Service Manual_2020-V1.0 6. Refrigeration system 6.1 Refrigeration system working principle 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) 6.2 Cooling pipeline and drain pipe inside the cabinet... -
Page 21: Circulating Route Of Cooling Air
Service Manual_2020-V1.0 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) 1-Freezer capillary and inlet of evaporator Copper pipe: Copper pipe: Φ6 Φ6.35 2-Heat transition tube and outlet of evaporator Copper pipe: Copper pipe: Φ6... -
Page 22: Welding Point In The Compressor Case
Service Manual_2020-V1.0 6.5 Welding point in the compressor case Welding point Pipe outer diameter (mm) 1-Compressor outlet tube and inlet of venting connection tube Copper pipe: Steel pipe: Φ4.0 Φ6.17 2-Inlet of condenser tube and outlet of venting connection Steel pipe: Φ4.0 Steel pipe: Φ4.0 tube Steel pipe: Φ4. -
Page 23: Dismantling Of Parts
Service Manual_2020-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 ①out of door liner Door tray None 7.2 Parts inside the refrigerator Freezer drawer Remove the freezer drawer according to below steps: 1）... -
Page 24: Light System
Service Manual_2020-V1.0 7.3 Light system Light None Switch The switch is locate in the top hinge cover of cabinet 1）Remove the screw of hinge cover 2）Remove the hinge cover 3）Remove the switch... -
Page 25: Air Duct Components In Freezing Chamber And Fan Motor
Service Manual_2020-V1.0 4）The reverse operation for assembly Note: because the refrigerator without light, the switch don’t control on and off 7.4 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 26: Evaporator And Defrost System
Service Manual_2020-V1.0 1） Remove the back of freezer air duct screw, break the 11 buckles around and remove the front cover 2） Remove the 3 screws with a Phillips screwdriver to separate the air duct cover and the fan 3） Change the fan motor, the reverse operation for assembly 7.5 Evaporator and Defrost system Evaporator in freezing chamber... -
Page 27: Compressor Case
Service Manual_2020-V1.0 1） Remove the air duct components in freezing chamber. 2） Disconnect all connectors. 3） Remove the welding on inlet and outlet tubes. 4） Remove two screws which are used to fix the evaporator and remove the evaporator. Components on the evaporator Defrost heater with defrost sensor and fuse, it can be replaced separately. - Page 28 Service Manual_2020-V1.0 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） Slowly tilt the refrigerator forward, relying on the wall or a solid enough object, leaving space to facilitate the operation.
- Page 29 Service Manual_2020-V1.0 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. 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...
- Page 30 Service Manual_2020-V1.0 10）Use Pipe cutter cut off the condenser tube❽, then Shear off capillary ❾ by the capillary tube scissors. 11） Replace the compressor and welding the compressor pipeline.-❿Welding the low-pressure muffler. -⓫Welding the process pipeline.-⓬Welding the high-pressure exhaust pipe. 12）Replace the filter, Cu-Fe tubes welding ⓭...
- Page 31 Service Manual_2020-V1.0 15）Use the vise grip pliers clamp the middle of the process pipe, then seal welding process tube⓯⓰. Piping system in the compressor case 1.Compressor 5.Capillary 2.Exhaust transition pipe 6.Suction pipe 3.Condenser 7.Return transition pipe 4.Dry filter Drain tray 1）Disengage the drain tray buckle out of the compressor bottom plate installation hole.
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Page 32: Display Control Board
Service Manual_2020-V1.0 7.7 Display control board Display control board 1） Remove the label stuck on the display control panel 2） Use a slotted screwdriver to pry open the three clips 3） Pull out the connector terminal and replace the display control board. * The temperature control indication sticker is likely to be damaged when replacing, thus it is advised to prepare one for standby before replacement... -
Page 33: Main Control Board
Service Manual_2020-V1.0 7.8 Main control board Main control board in the box of compressor Main control board is locate case Remove two screws outside 2）Remove main control board box cover 3）Disassembly the connector, replace the main control board... -
Page 34: Variable Frequency Driver Board（None
Service Manual_2020-V1.0 7.9 Variable frequency driver board（None） 7.10 Water dispenser（NONE）... -
Page 35: Temperature Sensing System
Service Manual_2020-V1.0 8. Temperature sensing system 8.1 Position of sensors Position of sensors Have 3 sensors ① Ambient temperature or humidity sensor ② Sensor in freezing chamber ③ Defrost sensor freezing chamber 8.2 Replacement of sensors Sensor in freezing chamber Before remove the sensor, the freezer duct assembly should be removed 1）... -
Page 36: Sensor Without Terminal Replacement
Service Manual_2020-V1.0 Ambient temperature sensor Ambient temperature sensor is located in upper hinge cover, Defrost sensor in freezing chamber 1) Before remove the sensor, the duct assembly should be removedRemove the air duct assembly. 2) Remove the sensor. 8.3 Sensor without terminal replacement Sensor replacement guidelines Cut off the damaged head of sensor. -
Page 37: Sensor R/Ttable
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 38 Service Manual_2020-V1.0 1.40 15.98 46.40 4.372 91.40 1.426 3.20 15.12 48.20 4.167 93.20 1.368 5.00 14.310 50.00 3.972 95.00 1.312 6.80 13.550 51.80 3.788 96.80 1.259 8.60 12.830 53.60 3.613 98.60 1.209 10.40 12.160 55.40 3.447 100.40 1.161 12.20 11.520 57.20 3.290 102.20...
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Page 39: Function And Operation
Service Manual_2020-V1.0 9. Function and operation 9.1 Display operation panel Button Icons Gear ①： Temperature 46 or 10℉ A. Temperature setting B. Refrigerating and freezing mode change Gear ②： Temperature 43 or 5℉ Gear ③ ： Temperature 41 or 0℉ Gear ④... -
Page 40: Mode Setting
Service Manual_2020-V1.0 9.2.2 Temperature setting of freezing The temperature setting range of freezer is -24℃～-16℃, every time you press the button A, the temperature will cycle according to the following gears, and the gears will take effect after setting for 15 seconds. -
Page 41: Open Door Alarm
Service Manual_2020-V1.0 9.5 Open door alarm When door is open last for 120s, there will be buzzer alarm, afterwards give alarm one time per second until the door is closed, or press any buttons on control panel can cancel this alarm. 9.6 Error code and solutions Error code Fault Type... -
Page 42: Demo Mode（None
Service Manual_2020-V1.0 Gear ⑥⑤④ together lighten , then the Enter into test mode and press button compressor and the fan will start A for the first time Select to enter working into forced then the refrigerator will exit the test cooling mode In forced cooling mode, if no button is mode and return to normal operation... -
Page 43: Compressor
Service Manual_2020-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) Measured temperature in all chambers ≤ Shutdown temperature of all chamber 2) Enter defrosting cycle 3) The compressor runs continuously for more than 3 hours, will stop at least 10 minutes 1.2 When compressor shutdown time has been more than 5 min, one of the following conditions is met, the compressor starts up: 1) Measured temperature in refrigerator chamber ≥... -
Page 44: Troubleshooting Method
Service Manual_2020-V1.0 11. Troubleshooting Method 11.1 No cooling (Air cooling-Electronic) - Page 45 Service Manual_2020-V1.0...
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Page 46: No Working Of Compressor
Service Manual_2020-V1.0 11.2 No working of compressor... -
Page 47: Inside Frosting, No Defrosting
Service Manual_2020-V1.0 11.3 Inside frosting, no defrosting... -
Page 48: Inside Frosting, No Defrosting-Maintenance Guidelines
Service Manual_2020-V1.0 11.4 Inside frosting, no defrosting-Maintenance guidelines... -
Page 49: Light Is Not On
Service Manual_2020-V1.0 11.5 Light is not on... -
Page 50: Fan Failure
Service Manual_2020-V1.0 11.6 Fan failure 11.7 Defective defrost circuit... -
Page 51: Noise
Service Manual_2020-V1.0 11.8 Noise 11.9 Air duct not operated（Option）... -
Page 52: Ice Maker Not Make Ice（Option
Service Manual_2020-V1.0 11.10 Ice maker not make ice（Option）... -
Page 53: Product Exploded View And Spare Parts List
Service Manual_2020-V1.0 12. Product exploded view and spare parts list Please log in to TSP system to view and download these contents. - Page 54 For more information about where you can drop off your waste for recycling, please contact your local authority, or where you purchased your product. Midea Refrigerators If you need to get detailed technical information from the manufacturer, please contact: xxx@midea.com...
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