Service Manual_2019-V2.0
Service Manual
Wine Cooler SERIES
Applicable Models Model Code Applicable Models
HS-129SN
UR-LC99G-DQ 22033010001601
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.
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Service Manual_2019-V2.0
WARNING
Important Safety Notice
There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer's specified parts to prevent shock, fire
or other hazards. Do not modify the original design without permission of manufacturer.
WARNING
Important Safety Notice
The Maintenance Manual is only for the use of maintenance personnel with certain experience and background in electrical, electronic and mechanical field.
Any attempt to repair main devices may lead to personal injury and property loss. 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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Service Manual_2019-V2.0
Contents
1. SIGNIFICANT UPDATE NOTES (NONE) .........................................................................................................5 2. SAFETY WARNING CODE....................................................................................................................................6
2.1 WARNING FOR OPERATION SAFETY ........................................................................................................................... 6 2.2 SAFETY INSTRUCTION FOR REFRIGERANT ................................................................................................................. 8 3. TRANSPORT ..........................................................................................................................................................9 3.1 HANDLING................................................................................................................................................................... 9 4. INSTALLATION AND COMMISSIONING ...........................................................................................................10 4.1 DOOR DISASSEMBLY AND ASSEMBLY ...................................................................................................................... 10 4.2 INSTALLATION LOCATION .......................................................................................................................................... 10 4.3 LEVELING OF THE REFRIGERATOR ........................................................................................................................... 10 4.4 LEFT OR RIGHT OPEN DOOR REVERSAL ................................................................................................................... 11 4.5 INSTALLATION OF HANDLENONE....................................................................................................................... 12 4.6 INSTALLATION OF DOOR LOCKNONE ................................................................................................................ 12 5. PRODUCT CONFIGURATION AND DIMENSION .............................................................................................13 5.1 MAIN PARTS AND THEIR NAMES ................................................................................................................................ 13 5.2 EXTERNAL DIMENSION.............................................................................................................................................. 14 5.3 LOCATION OF S/N .................................................................................................................................................... 15 6. PRODUCT SPECIFICATION ...............................................................................................................................16 6.1 ELECTRICAL PARAMETERS ....................................................................................................................................... 16 6.2 COOLING TEMPERATURE SETTING RANGE ............................................................................................................... 16 6.3 CIRCUIT DIAGRAM .................................................................................................................................................... 17 7. REFRIGERATING PIPING SYSTEM AND CIRCULATING ROUTE OF COOLING AIR................................18 7.1 REFRIGERATING PIPING SYSTEM.............................................................................................................................. 18 8. DISMANTLING OF PARTS..................................................................................................................................19 8.1 PARTS ON THE DOOR ............................................................................................................................................... 19 8.2 PARTS INSIDE THE REFRIGERATOR .......................................................................................................................... 19 8.3 LIGHT SYSTEM .......................................................................................................................................................... 19 8.4 COMPRESSOR CASE................................................................................................................................................. 20 9. TEMPERATURE SENSING SYSTEM.................................................................................................................25 9.1 THERMOSTAT............................................................................................................................................................ 25 10. FUNCTION AND OPERATION..........................................................................................................................26 10.1 OPERATION PANEL ................................................................................................................................................. 26 11. COMPRESSOR...................................................................................................................................................27 11.1 COMPRESSOR ON AND OFF CONTROL SPECIFICATIONS ........................................................................................ 27
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12. TROUBLESHOOTING METHOD ......................................................................................................................28 12.1 NOT COOLING......................................................................................................................................................... 28 12.2 NO WORKING OF COMPRESSOR............................................................................................................................. 29 12.3 THERMOSTAT MALFUNCTION-UNDERCOOLING ...................................................................................................... 29 12.4 INSIDE FROSTING, NO DEFROSTING ....................................................................................................................... 30 12.5 INSIDE FROSTING, NO DEFROSTING-MAINTENANCE GUIDELINES.......................................................................... 30 12.6 LIGHT IS NOT ON..................................................................................................................................................... 31 12.7 NOISE ..................................................................................................................................................................... 32
13. FIGURES AND DETAILS OF REPAIR PARTS ................................................................................................33
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1. Significant update notes (None)
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2. Safety Warning Code
Service Manual_2019-V2.0
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.
WARNING
1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this appliance near water. 6) Clean only with a damp cloth. 7) Do not block any ventilation openings. 8) Install in accordance with the manufacturer's instructions. 9) Do not install near any heat sources, such as radiators, heat registers, stoves, or other apparatus that produce heat. 10) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 11) Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the appliance. 12) Do not attempt to modify or extend the power cord of this appliance. 13) Unplug this appliance during lightning storms or when it will not be used for long periods of time. 14) Make sure that the available AC power matches the voltage requirements of this appliance.
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CONNECTING ELECTRICITY
Service Manual_2019-V2.0
Electrical Shock Hazard.
Plug into a grounded 3-prong outlet. Do not remove the ground prong. Do not use an adapter.
Failure to follow these instructions can result in death, fire, or electrical shock.
WARNING
Electric Shock Hazard Failure to follow these instructions can result in electric shock, fire, or death. 1) WARNINGKeep ventilation openings, in both the freezer and the built-in structure, clear of obstruction.
2) WARNINGDo not touch the interior of the freezer with wet hands. This could result in frost bite.
3) WARNINGDo not use mechanical devices or other means to accelerate the defrosting process, other than those recommended by the manufacturer.
4) WARNINGDo not damage the refrigerant circuit.
5) WARNINGDo not damage the refrigerant tubing when handling, moving, or using the freezer.
6) WARNINGDANGERNever allow children to play with, operate, or crawl inside the freezer. Risk of child entrapment. Before you throw away your old freezer:
6-1) Take off the doors
6-2) Leave the shelves in place so that children may not easily climb inside
7) Unplug the freezer before carrying out user maintenance on it.
8) This freezer can be used by children age eight years and older and persons with reduced physical or mental capabilities or lack of experience and knowledge if they are given supervision or instruction concerning the use of the freezer in a safe way and understand the hazards involved. Children should not play with the freezer. Cleaning and maintenance should not be performed by children without supervision.
9) If a component part is damaged, it must be replaced by the manufacturer, its service agent, or similar qualified persons in order to avoid a hazard.
10) Please dispose of the freezer according to local regulations as the freezer contains flammable gas and refrigerant.
11) Follow local regulations regarding disposal of the freezer due to flammable refrigerant and gas. All refrigeration products contain refrigerants, which under the 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.
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Service Manual_2019-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.
Grounding requirement
This freezer must be grounded. This freezer is equipped with a cord having a grounding wire with a grounding plug. The plug must be inserted into an outlet that is properly installed and grounded.
Improper use of the grounding plug can result in a risk of electric shock. Consult a qualified electrician or service person if the grounding instructions are not completely understood, or if doubt exists as to whether the freezer is properly grounded. 2.2 Safety instruction for refrigerant
Explosion Hazard.
Keep flammable materials and vapors, such as gasoline, away from freezer. Failure to do so can result in fire, explosion, or death.
Safety instruction for refrigerant
DANGERRisk of Fire or Explosion. Flammable Refrigerant Used. To Be Repaired Only By Trained Service Personnel. Do Not Use Mechanical Devices. Do Not Puncture Refrigerant Tubing. CAUTIONRisk of Fire or Explosion. Flammable Refrigerant Used. Consult Repair Manual/Owner's Guide Before Attempting To Service This Product. All Safety Precautions Must be Followed. CAUTIONRisk of Fire or Explosion. Dispose of Properly In Accordance With Federal Or Local Regulations. Flammable Refrigerant Used. CAUTIONRisk of Fire or Explosion Due To Puncture Of Refrigerant Tubing; Follow Handling Instructions Carefully. Flammable Refrigerant Used.
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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.
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4. Installation and commissioning
Service Manual_2019-V2.0
4.1 Door Disassembly and Assembly
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.
4.3 Leveling of the refrigerator
Leveling of the refrigerator If the refrigerator cannot be placed steadily, adjust the footing to level it.
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4.4 Left or right open door reversal
1Change the installation location of the upper hinge of the beverage cabinet, then the opening direction of the door could be changed at will. Please follow the following instructions for the change of the opening direction of the beverage cabinet's door (for instance: from right-handed door to left-handed door): close the glass door of the beverage cabinet, use a blade to remove the rivet carefully, loose the mounting coverof the door hinge and three positioning bolts and remove the upper hinge.
Service Manual_2019-V2.0
2Open the door of the beverage cabinet and detach the glass door of which with tremendous care.
3Dismantle the door axle sleeveat lower part of the glass door, door stopper block screwsand door stopper , and fix them to left side.
4Dismantle the adjustable foot,positioning boltsand lower hinge, then exchange the parts of right and left sides and later use the reverse method to install the adjustable foot, lower hing and positioning bolts.
5Put the aforesaid glass door on the lower hinge, and fix the upper hinge. Align the door with the cabinet and check the tightness of gasket, and then install all the ornaments.
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4.5 Installation of handleNone 4.6 Installation of door lockNone
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5. Product configuration and dimension
5.1 Main parts and their names
Service Manual_2019-V2.0
(The picture is only for reference, and specific appearance and configuration are subject to the real product)
Refrigerator chamber 1.Lamp mounting box assembly 2.Glass shelf 3. Glass door
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5.2 External dimension
Description
Height to Top of Case Width Depth w/Cabinet Depth w/Door Depth (Door open 90 deg. w) Depth (Door open 135 deg. w) Width (Door open 135 deg. w)
Code
A B C D F G H
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HS-125WN Size (mm)
845 470 390 440 873 753 791
(The picture is only for reference) 14
5.3 Location of S/N
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Some products also have S/N on the lower part of the right side of the Cabinet. 15
6. Product specification
6.1 Electrical parameters
Product Name Applicable Models
Item Refrigerant Compressor Starter(PTC) Overload protector(OLP) Integrate PTC+OLP Capacitor Power filter
Winding resistance of compressor wiring terminal
Service Manual_2019-V2.0
UR-LC99G-DQ HS-129SN
Specification R600a
DFB30DF QP2-4R7 DRB16N61A1
None None None Rmc:13.04±7% Rsc: 5.6±7% Rms=Rmc+Rsc
(20)
Winding resistance picture
The input power of compressor
Lights inside the refrigerator Lights inside the refrigerating chamber Lights others Switch of the refrigerator door
6.2 Cooling temperature setting range
Compartment Refrigerating
The highest (oC) 10
44.5W
LED AC230V/2W None None
Lowest (oC) 1
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6.3 Circuit diagram
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7. Refrigerating piping system and circulating route of cooling air
7.1 Refrigerating piping system
CompressorWhole condenserDry filter tubeCapillary tubeEvaporatorSuction tubeCompressor
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8. Dismantling of parts
8.1 Parts on the door
Door seal Door seal is installed into door liner groove. 1 Open the wine cabinet door; 2) Take the door seal out of door liner.
Service Manual_2019-V2.0
8.2 Parts inside the refrigerator
wine rack 1Lift up the division plate with a proper force and pull it out towards yourself;
8.3 Light system
Light 1) Take down the screw on lampshade, Push the lampshade inner and take it down 2) Take down the screw on LED light plate then push out the light.
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Light switch
8.4 Compressor case
Rear cover Compressor and the cooling system pipe
None
1Cut 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.
2Slowly tilt the refrigerator forward, relying on the wall or a solid enough object, leaving space to facilitate the operation. For safety, it should be carried by someone to prevent its falling.
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3Cut off the compressor pipeline.-Cut off the process pipeline.-Cut off the low-pressure muffler.-Cut off the high-pressure exhaust pipe.
Service Manual_2019-V2.0
4-1Remove the screws(for some models) -Two screws outside -One screw inside
4-2Remove the metal clamp(for some models) -Disassembly the metal clamp that is fix the electric appliance shield
5Remove the clipping strip Slowly pull it out
6Remove the protective cover -Pry the protective cover slowly from the upper part, -Pull it out and remove it.
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7Remove the starter and protector Unplug the starter and protector (you can use a screwdriver to pry it slowly)
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8Loosen the screw of the compressor bottom plate, remove the floor together with the compressor from the box.
9Use the wrench to remove the bolts by steps, replace the compressor and reverse process can complete installation.
10Use Pipe cutter cut off the condenser tube, then Shear off capillary by the capillary tube scissors.
11Replace the compressor and welding the compressor pipeline.-Welding the process pipeline.-Welding the low-pressure muffler.-Welding the high-pressure exhaust pipe.
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12Replace the filter, Cu-Fe tubes welding used Ag welding rod, Cu-Cu tubes welding used Cu welding rod.
Service Manual_2019-V2.0
13Vacuum system,The degree of vacuum below 6Pa.
14Perfusion refrigerant.
15Use the vise grip pliers clamp the middle of the process pipe, then seal welding process tube.
Piping system in the compressor case
Condenser-1(out) Drier
Capillary Tube Sution Tube Compressor cover Condenser-1(in)
Compressor
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drain tray Temperature board box
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Drain tray 1Pull out the drain tray 2Replace the drain tray, the reverse process can
/ complete installation.
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9. Temperature sensing system
9.1 Thermostat Sensor in refrigerating chamber
1 Take down screws and gaskets on the evaporator. 2 Remove the welding on inlet and outlet tubes.
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3) Take the sensor out from card slot.
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10. Function and operation
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10.1 Operation panel
Direct cooling mechanical refrigerator, through the thermostat knob to adjust the stalls.
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11. Compressor
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11.1 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; 2) Compressor downtime is more than 5min.
When 1.1 and 1.2 are not satisfied, the compressor maintains the original state
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12. Troubleshooting Method
12.1 Not cooling
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12.2 No working of compressor
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12.3 Thermostat malfunction-Undercooling
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12.4 Inside frosting, no defrosting
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12.5 Inside frosting, no defrosting-Maintenance guidelines
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Service Manual_2019-V2.0 12.6 Light is not on
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12.7 Noise
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13. Figures and details of repair parts
See this section in the TSP.
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Service Manual_2019-V2.0
The symbol on the product or its packaging indicates that this product must not be disposed of with your other household waste. Instead, it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. 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 appliances after sales website
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 tsp.midea.com
How to login TSP system
Use Google browser visit the https://tsp.midea.com/ Internal User: Use MIP account and Password. Customer: Access: Generated by TSP (provided by administrator). Password: abcd1234 (please revise after login in).
Midea Refrigerators
If you need to get detailed technical information from the manufacturer, please contact:
xxx@midea.com
Refrigeration Division Overseas Sales Company Address: No. 176, Jinxiu Avenue, Economic-Technological Development Area, Hefei, Anhui, China
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Microsoft Word for Microsoft 365
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