Midea HS-455LWEN Service Manual

Upright no frost series

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Service Manual_2020-V1.0

Service Manual

Upright No Frost Series

Applicable

Product Models

Applicable Models

Models

HS-455LWEN

CE-BC350WE-ST

22031010003445

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Summary of Contents for Midea HS-455LWEN

Page 1 Service Manual_2020-V1.0 Service Manual Upright No Frost Series Applicable Product Models Applicable Models Models HS-455LWEN CE-BC350WE-ST 22031010003445...
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.
Page 3 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 .........................9 3.2 D ISASSEMBLY AND SSEMBLY ..............................9 3.3 I NSTALLATION LOCATION ..........................10 3.4 L...
Page 4 Service Manual_2020-V1.0 7.11 W （O ）..........................32 ATER DISPENSER PTION 8. TEMPERATURE SENSING SYSTEM........................34 .............................34 8.1 P OSITION OF SENSORS ............................34 8.2 R EPLACEMENT OF SENSORS 8.3 S ......................35 ENSOR WITHOUT TERMINAL REPLACEMENT ..............................36 8.4 S ENSOR TABLE 9. FUNCTION AND OPERATION...........................38 ............................38 9.1 D ISPLAY OPERATION PANEL...
Page 5 Service Manual_2020-V1.0 1. Significant update notes (None)
Page 6 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 14) Make sure that the available AC power matches the voltage requirements of this appliance. 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.
Page 8 Service Manual_2020-V1.0 guidelines of federal law must be removed before disposal. It is the consumer's 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 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 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 （...
Page 11 Service Manual_2020-V1.0 4) Take off the door, dismantle bottom hinge and adjustable foot. Install shaft of bottom hinge on the other side, then install the bottom hinge on the other side of cabinet. 5) Remove the upper cover of door, install the sleeve pipe, door signal line to the other side, and install the door upper cover.
Page 12 Service Manual_2020-V1.0 3. 6 Installation of handle （ Option ） Schematic diagram of handle installation ①insert pin ②screw ③handle ④nut cap 1） Remove the insert pin ① 2) Adjust the handle ③ to the installing hole and tighten screw ②. 3）Cover the nut cap ④...
Page 13 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) 1.Magnetically controlled switch 6.Crisper for fruit and vegetable 2.Air duct components in refrigerating chamber 7.Regulating foot 3.Glass shelve 8.Big bottle frame in refrigerating chamber...
Page 14 1022 (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 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.
Page 16 Service Manual_2020-V1.0 5. Electric control system 5.1 Electrical parts parameters Applicable Model HS-455LWEN Product Model CE-BC350WE-ST Product code 22031010003445 Rated Voltage 220-240V、50Hz Item Specification Specification Refrigerant R600a SZ45C1H Compressor (Part code: 11101010012493) Starting device type Fixed Speed The COP of compressor 1.43 (W/W)
Page 17 Service Manual_2020-V1.0 □ Mechanical switch Switch of the light ■ Magnetism control switch Defrosting parts Defrosting sensor None Fuse in freezing chamber None Defrost heater in freezing chamber None...
Page 18 Service Manual_2020-V1.0 5.2 Circuit diagram...
Page 19 Service Manual_2020-V1.0 R: Refrigerator...
Page 20 Service Manual_2020-V1.0 5.3 Main PCB terminal connection diagram Connecti Connecting terminals terminals 1.Compressor 2. Freezing defrost heater Ambient 3. Door light switch temperatu 4. Temperature sensor re sensor 5.Defrost sensor 7. LED 8.Fan motor 9. Display control panel...
Page 21 Service Manual_2020-V1.0 6. Refrigeration system 6.1 Refrigeration system working principle Compressor →Condenser →Anti-condensation tube →Dry filter → Capillary tube → Evaporator → Regenerator → Suction tube → Compressor...
Page 22 Service Manual_2020-V1.0 6.2 Cooling pipeline and drain pipe inside the cabinet...
Page 23 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 -Heat transition tube and outlet of evaporator Copper pipe: Φ6 Copper pipe:...
Page 24 Service Manual_2020-V1.0 Φ6.35 6.5 Welding point in the compressor case Welding point Pipe outer diameter (mm) 1-Inlet of anti-condensation tube of venting connection tube Steel pipe: Φ4.0 Steel pipe: Φ4.0 2-Compressor outlet tube and inlet of venting connection Copper pipe: Steel pipe: Φ4.0 tube Φ6.17...
Page 25 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 out of door liner. Door tray Lift up the bottle frame and take it out from the door liner of the refrigerator.
Page 26 Service Manual_2020-V1.0 Shelves 1） Pull out the partition plate completely. 2） Lift it up and take it out from the refrigerator. 7.3 Light system Light Light of the refrigerating chamber is located at the upper air duct component 1） Pull out the upper air duct component of the refrigerator chamber 2）...
Page 27 Service Manual_2020-V1.0 The magnetically control switch is located on upper beam of refrigerator 1）Open the cover of upper beam by tools, remove the magnetically control switch 7.4 Air duct components in refrigerating chamber and fan motor Air duct components in freezer chamber All accessories in the freezer chamber should be dismantled before removing the air duct components.
Page 28 Service Manual_2020-V1.0 Fan motor 1) Loosen the plastic clips 2) Replace the fan motor, the inverse operation to complete installation Damper assembly None 7.5 Air duct components in freezing chamber and fan motor (None) 7.6 Evaporator and Defrost system Evaporator in refrigerator chamber 1）...
Page 29 Service Manual_2020-V1.0 1.Compressor 5.Dry filter 2.Exhaust transition pipe 6.Capillary 3.Condenser 7.Suction pipe 4.Anti-condensationg tube 8.Return transition pipe Disassembly and assembly of compressor 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 30 Service Manual_2020-V1.0 3）Cut off the compressor pipeline.-❶Cut off the ❸Cut off the high-pressure exhaust pipe. process pipeline.-❷Cut off the low-pressure muffler.- 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 31 Service Manual_2020-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 32 Service Manual_2020-V1.0 11）Replace the compressor and welding the ⓫Welding the low-pressure muffler.-⓬Welding the compressor pipeline.-❿Welding the process pipeline.- 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.
Page 33 Service Manual_2020-V1.0 1） Remove the two fixing screws on the drain tray and pull it out, replace a new one. 2） Disengage the drain tray buckle out of the compressor bottom plate installation hole and pull it out, replace a new one. 7.8 Display control board Display control board 1) use sucker to catch the cover of display panel，pull...
Page 34 Service Manual_2020-V1.0 Main control board is located in the top of the refrigerator 1) Remove the main control board screw with a Phillips screwdriver 2) Disconnect the connector of main control board , remove it 7.10 Variable frequency driver board （ None ） 7.11 Water dispenser （...
Page 35 Service Manual_2020-V1.0 2）Twist the screwdriver to push the water valve out of the door, then pull the water valve out along the 45- degree direction. 3）Disassembly and installation of getting water cap component...
Page 36 Service Manual_2020-V1.0 8. Temperature sensing system 8.1 Position of sensors Position of sensors Have 3 sensors ① Sensor in refrigerating chamber ② Ambient temperature or humidity sensor ③ Defrost sensor 8.2 Replacement of sensors Refrigerator temperature sensor The sensor is located at right of freezer chamber 1）Pull out the cover 2）Pull out the sensor...
Page 37 Service Manual_2020-V1.0 Defrost sensor in refrigerated chamber Before remove the sensor, the refrigerated air duct assembly should be removed 1） Cut off the band which fixes the sensor. 2） Separate the sensor and the evaporator. Ambient temperature sensor The sensor is located in the wire box of the refrigerator top.
Page 38 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 39 Service Manual_2020-V1.0 -13.00 25.17 32.00 6.495 77.00 2.005 -11.20 23.76 33.80 6.175 78.80 1.919 -9.40 22.43 35.60 5.873 80.60 1.838 -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...
Page 40 Service Manual_2020-V1.0 9. Function and operation 9.1 Display operation panel Refrigeration chamber temperature control panel Button Icons A. Refrigerating chamber temperature gear setting Display screen LED ** Expressão incorreta ** Gear : Super cool LED ② Gear 1 : 2℃ LED ③...
Page 41 Service Manual_2020-V1.0 Enter: Press the super cool mode button“Super” Working: super cool indicator light is on, refrigerator is working according to 2°C Exit : 1.working 150 min after exit the super cool mode 2.adjust set buttonexit the super cool mode 9.3.2 Locking and unlocking (None) 9.4 Defrosting function Defrost in the freezing chamber1）Defrost the freezing chamber as per the accumulative operation time...
Page 42 Service Manual_2020-V1.0 0.5 seconds off then the refrigerator will exit the test After entering into test mode, if no mode and return to normal operation button is pressed within 15 seconds mode The indicator lights of Super cool、Gear 1、2 together lighten , other lights are Enterinto test mode and press “...
Page 43 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 Service Manual_2020-V1.0 11. Troubleshooting Method 11.1 No cooling (Air cooling-Electronic)
Page 45 Service Manual_2020-V1.0...
Page 46 Service Manual_2020-V1.0 11.2 No working of compressor...
Page 47 Service Manual_2020-V1.0 11.3 Inside frosting, no defrosting...
Page 48 Service Manual_2020-V1.0 11.4 Inside frosting, no defrosting-Maintenance guidelines...
Page 49 Service Manual_2020-V1.0...
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Page 51 Service Manual_2020-V1.0 11.5 Light is not on...
Page 52 Service Manual_2020-V1.0 11.6 Fan failure 11.7 Defective defrost circuit...
Page 53 Service Manual_2020-V1.0 11.8 Noise 11.9 Air duct not operated （ Option ）...
Page 54 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 55 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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Ce-bc350we-st