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Service Manual
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.
CHEST FREEZER SERIES
Applicable Models
HS-186CN
HS-259CN
Model Code
Applicable Models
UR-BD143-DQ
22032010004022
UR-BD199-DQ
22032010004021
1
Service Manual_2018-V2.0
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Table of Contents
Related Manuals for Midea HS-186CN
Summary of Contents for Midea HS-186CN
- Page 1 CHEST FREEZER SERIES Applicable Models Model Code Applicable Models UR-BD143-DQ 22032010004022 HS-186CN UR-BD199-DQ 22032010004021 HS-259CN 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_2018-V2.0 Contents SIGNIFICANT UPDATE NOTES(NONE) ......................5 2. SAFETY WARNING CODE ............................6 2.1 W ........................... 6 ARNING FOR OPERATION SAFETY ......................... 8 2.2 S AFETY INSTRUCTION FOR REFRIGERANT 3. TRANSPORT ................................9 3.1 H ................................... 9 ANDLING 4. INSTALLATION AND COMMISSIONING ......................10 4.1D ) ...................... - Page 4 Service Manual_2018-V2.0 ..................30 10.1C OMPRESSOR ON AND OFF ONTROL SPECIFICATIONS 11. TROUBLESHOOTING METHOD ........................31 ................................31 11.1N OT COOLING 11.2 N ..........................32 O WORKING OF COMPRESSOR ....................... 32 11.3T HERMOSTAT MALFUNCTION NDERCOOLING ..............................33 11.4 L IGHT IS NOT ON 11.5 N ..................................
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Page 5: Significant Update Notes(None)
Service Manual_2018-V2.0 1. Significant update notes(None) -
Page 6: Safety Warning Code
Service Manual_2018-V2.0 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_2018-V2.0 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_2018-V2.0 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: Transport
Service Manual_2018-V2.0 3. Transport 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: Installation And Commissioning
Service Manual_2018-V2.0 4. Installation and commissioning 4.1Door Disassembly and Assembly(None) The refrigerator door needs to be dismantled if it cannot enter the room in the whole. 4.2 Installation location Installation location Location that is easy for ventilation shall be chosen to facilitate heat dissipation, enhance its performance and reduce the energy consumption. -
Page 11: Installation Of Door Lock（None
Service Manual_2018-V2.0 1- Handle 2- M5*14 screw(two) 3- Screw hole cover (two) 1) The handle is inserted below the display control board of door, aligning with the screw hole. 2) Fixing the handle by using the screw. 3) Assemble the screw hole cover onto the screw hole. 1.Fix the lock loop to its mounting hole near the frame in the front side plate of the box with a M4x20 or M4x8 screw. -
Page 12: Product Configuration And Dimension
Service Manual_2018-V2.0 5. Product configuration and dimension 5.1 Main parts and their names (The picture is only for reference, and specific appearance and configuration are subject to the real product) Freezer chamber Refrigerator chamber ❶ Door shell ❼ Levelling feet ❷... -
Page 13: External Dimension
Service Manual_2018-V2.0 5.2 External dimension Description Code Size (mm)（BD143） Size (mm)（BD199） Height to Top of Case Width Depth/Hinge Depth Height (Door open) 1330 1330 (The picture is only for reference) -
Page 14: Location Of S/N
Service Manual_2018-V2.0 5.3 Location of S/N Some products also have S/N on the lower part of the right side of the Cabinet. -
Page 15: Product Specification
Service Manual_2018-V2.0 6. Product specification 6.1 Electrical parameters Applicable Models HS-186CN HS-259CN Product Name UR-BD143-DQ UR-BD199-DQ Product Code 22032010004022 22032010004021 Item Specification Refrigerant R600a R600a HYB60MHU42a HYB60MHU42a Compressor QP2-4R7 QP2-4R7 Starter(PTC) DRB24P61A1 DRB24P61A1 Overload protector(OLP) Integrate PTC+OLP None None Variable frequency driver board... - Page 16 Service Manual_2018-V2.0 UR-BD199-DQ（include door lamp and power lamp）...
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Page 17: Refrigerating Piping System And Circulating Route Of Cooling Air
Service Manual_2018-V2.0 7.Refrigerating piping system and circulating route of cooling air 7.1 Refrigerating piping system ❶Compressor→❷ Back hanging wire tube condensor →❸ Front condenser →❹Dry filter→❺Capillary tube→❻Evaporator 7.2 Special soldering position... -
Page 18: Dismantling Of Parts
Service Manual_2018-V2.0 8. Dismantling of parts 8.1 Parts on the door Door seal 1)Pull the door seal from the corner 2)Take efforts until door seal totally detaches from door inner liner groove, remove the door seal 3)Fixing the four corners and pressing smoothly. The hinge cover The hinge cover teardown 1)Push the hinge cover from the bottom to the top and... - Page 19 Service Manual_2018-V2.0 Open the slanted upward of hinge cover to a certain angle by a screwdriver and remove the hinge cover. Wear safety gloves for fear of cutting the hand. The hinge cover install When the door is closed, open the lower hinge cover along the side wall to a suitable angle and push forwards into the side wall of the hinge until the hinge cover boss completely falls into the hinge hole.
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Page 20: Parts Inside The Refrigerator
Service Manual_2018-V2.0 1）2）Remove a set screw 2）2）Separate stationary seat and lamp harness 8.2Parts inside the refrigerator Basket Open the door and upwardly lift the basket Note: There are plastic baskets and wire baskets, and the basket we offer you is subject to the real product you received. Inside water pipe cover Counterclockwise to remove the pipe cover 8.3 Light system... -
Page 21: Compressor Case
Service Manual_2018-V2.0 2）2) Remove the lamp plate from the retaining clasp 3）3) Remove the screws of the two fixing seats and remove the fixing seats Power cord 1）Open the cover plate from the side with the tool 2）Open the cover plate, take out the power cord, and then cover the cover plate 8.4 Compressor case shutter... - Page 22 Service Manual_2018-V2.0 1）Cut off the compressor pipeline.-❶Cut off the process pipeline.-❷Cut off the low-pressure muffler.-❸Cut off the high-pressure exhaust pipe. 2-1）Remove the screws(for some models) -Two screws outside -One screw inside 2-2）Remove the metal clamp(for some models) -Disassembly the metal clamp that is fix the electric appliance shield 3）Remove the clipping strip Slowly pull it out...
- Page 23 Service Manual_2018-V2.0 5）Remove the starter and protector Unplug the starter and protector (you can use a screwdriver to pry it slowly) 6）Loosen the screw of the compressor bottom plate, remove the floor together with the compressor from the box. 7）Use the wrench to remove the bolts by steps❹❺❻❼, replace the compressor and reverse process can complete installation.
- Page 24 Service Manual_2018-V2.0 9）Replace the compressorand welding the compressor pipeline.-❿Welding the process pipeline.-⓫Welding the low-pressure muffler.-⓬Welding the high-pressure exhaust pipe. 10）Replace the filter, Cu-Fe tubes welding ⓭ used Ag welding rod, Cu-Cu tubes welding ⓮ used Cu welding rod. 11）Vacuum system,The degree of vacuum below 6Pa. 12）Perfusion refrigerant.
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Page 25: Temperature-Control Box Assembly
Service Manual_2018-V2.0 ❷ -1 Front condenser pipeline-1 ⓫ Suction Pipe ❸ -2 Hanging wire condenser pipeline-2 ⓬ -1 Hanging wire condenser pipeline-1 ❹ -1Anti-dew pipe-1 ⓭ -2 Front condenser pipeline-2 ❺ Temperature-control box assembly ⓮ -2Anti-dew pipe-2 ❻ Drying filter ⓯... - Page 26 Service Manual_2018-V2.0 Destuffing 1） Pull down the screw, open the shutter. 2） Pull out the temperature probe from the temperature 3）Hold two tabs on the back cover of temperature-control box to remove the components 4）Use screwdriver to remove the screw 5）Separate the temperature-control box from the panel...
- Page 27 Service Manual_2018-V2.0 6）Pull out the control knob 7）Pull out the fixed nut of the thermostat 8) Pull out the wiring harness and indicator light。remove the indicator light and thermostat, the reverse operation is for assembly...
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Page 28: Function And Operation
Service Manual_2018-V2.0 9. Function and operation 9.1 Operation panel Icons Button ❶ Indicator hole cover/Power indicator Ⓐ freezer gear Ⓑ “OFF” 9.2Temperature control Control panel without indicator light 1. Connect the freezer to power supply; 2. The interior temperature of the freezer is adjusted through the thermostat knob. Clock wisely rotate the thermostat knob and the interior temperature will drop.“MIN”is the warmest setting, “MAX”is the coldest setting. -
Page 29: High Temperature An Alarm (None)
Service Manual_2018-V2.0 9.3High temperature an alarm (None) 9.4Defrosting function Unplug the freezer and open the freezer door, remove foods and drawers before defrosting; Open the outflow holes and drainage holes(and place water container at the outflow holes); indoor frost will naturally melt, wipe the defrost water with a dry, soft cloth. -
Page 30: Compressor
Service Manual_2018-V2.0 10. Compressor 10.1Compressor 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 31: Troubleshooting Method
Service Manual_2018-V2.0 11. Troubleshooting Method 11.1Not cooling... -
Page 32: No Working Of Compressor
Service Manual_2018-V2.0 11.2 No working of compressor 11.3Thermostat malfunction-Undercooling... -
Page 33: Light Is Not On
Service Manual_2018-V2.0 11.4 Light is not on 11.5 Noise... -
Page 34: Figures And Details Of Repair Parts
Service Manual_2018-V2.0 13. Figures and details of repair parts See this section in the TSP. - Page 35 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...
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Questions and answers
Why does the body (front side) gets very hot while working
The Midea HS-186CN may get very hot on the front side during operation due to the design of its refrigerating system. Some freezers use the front frame or outer cabinet as part of the heat dissipation system. Heat from the compressor and refrigerant is released through these areas to maintain internal cooling efficiency. This is a normal condition unless excessive heat or performance issues are observed.
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