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ServiceManual_2018-V1.0

 

2

 

 

  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    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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for 22033010000661

Page 1: ...s service manual is only for reference and specific appearance and configuration are subject to the real product Applicable Models Model Code UR LC46G DR 22033010000661 Prepared by R D Gao Yu Reviewed by QA Ke Bing Fei SVC Zhang Kun Approved by R D ZhangHuawei SVC Guang Taoshuai ...

Page 2: ...ssion 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...

Page 3: ...ION OF MODEL NONE 12 4 2 LOCATION OF NAMEPLATE NONE 12 5 PRODUCT SPECIFICATION 13 5 1 TYPE SPECIFICATION NONE 13 5 2 ELECTRICAL PARAMETERS 13 5 3 INSIDE TEMPERATURE 14 5 4 DEFROSTING PARTS 14 5 5 CIRCUIT DIAGRAM 14 6 INTERNAL VIEW AND DIMENSION 15 6 1 MAIN PARTS AND THEIR NAMES 15 6 2 EXTERNAL DIMENSION 15 7 REFRIGERATING PIPING SYSTEM AND CIRCULATING ROUTE OF COOLING AIR 17 7 1 REFRIGERATING PIPI...

Page 4: ...4 FAN MOTOR CIRCUIT OF THE FREEZING CHAMBER NONE 28 10 5 REFRIGERATOR FAN MOTOR CIRCUIT NONE 28 10 6 CONDENSER FAN MOTOR CIRCUIT NONE 28 10 7 DAMPER MOTOR CIRCUIT NONE 28 10 8 SENSOR RESISTANCE R T NONE 28 11 TROUBLESHOOTING METHOD 29 11 1 NO COOLING 29 11 2 NO WORKING OF COMPRESSOR 30 11 3 INSIDE FROSTING NO DEFROSTING NONE 31 11 4 INSIDE FROSTING NO DEFROSTING MAINTENANCE GUIDELINES 31 11 5 LIGH...

Page 5: ...ear 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 in...

Page 6: ...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 ...

Page 7: ...service person if the grounding instructions are not completely understood or if doubt exists as to whether the freezer is properly grounded 1 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 DANGER Risk of Fire or Explosion Flammable...

Page 8: ...8 V1 0 8 2 Description for product features This product is provided with following features 1 Mechanical temperature controlManual defroststeel wire guardrailReversible adjustable shelfChange the door opening direction ...

Page 9: ...o appropriate location wait for 2 hours bef ore power on 3 2 Door Disassembly and Assembly The wine door needs to be dismantled if it cannot enter the room in the whole Disassembly of Freezer door Disassembly of Freezer door None Disassembly of refrigerator door Disassembly of refrigerator door None 3 3 Installation location Installation location Location that is easy for ventilation shall be chos...

Page 10: ... adjust the footing to level it 3 5 Door reversal Door reversal Cross handle 1 Remove the plastic covering from the top door hinge 2 Unscrew the two screws from the bottom bracket Remove the foot from opposite side 3 Place to one side 4 Slide the Appliance door down about 15cm and off the top hinge pin and lift away from the Appliance ...

Page 11: ...eplace the plastic covering by clicking back into position on the door hinge 7 Check that the door is aligned horizontally and vertically and that the seals are closed on all sides before finally tightening the bottom hinge Re adjust the levelling feet 3 6 Installation of handle none 3 7 Installation of door lock Installation of door lock Installation of door lock None 3 8 Adjustment to level the ...

Page 12: ...ServiceManual_2018 V1 0 12 4 Terms 4 1 Definition of model None 4 2 Location of nameplate None ...

Page 13: ...istance of compressor wiring terminal Rmc 2 5 14 5Ω Rsc 7 4 21 4Ω Rms Rmc Rsc None None None Winding resistance picture None None None Variable frequency driver board None None None None The input power of compressor 70W None None None Motor Fan motor of the freezing chamber None None None None Ventilation upper room fan None None None None Condensation fan None None None None ice output motor Non...

Page 14: ...est o C Freezing None None Refrigerating upper room 10 1 Variable temperature None None 5 4 Defrosting parts Item Initial defrosting period Normal defrosting period Defrosting period None None Defrosting sensor None None Defrosting temperature controller None None Thermal fuse None None Defrosting heater in freezing chamber None None 5 5 Circuit diagram ...

Page 15: ... chamber 1 Refrigerator rollbond evaporator 2 steel wire shelf y 3 Temp control assembly 4 Zip top can frame 5 Reversible adjustable shelf None 6 2 External dimension Description Code Size mm Height to Top of Case A 439 5 Width B 484 Depth Total with Door Open C 444 Depth w Handles D Width door open 90 deg w handle E ...

Page 16: ...ServiceManual_2018 V1 0 16 ...

Page 17: ...gerating piping system and circulating route of cooling air 7 1 Refrigerating piping system Compressor Parallel flow condenser Auxiliary condenser Dry filter Capillary tube Evaporator Compressor 7 2 Circulating route of cooling air none ...

Page 18: ...ts on the door Door seal Door seal is installed into door liner groove 1 Open the wine door 2 Take the door seal out of door liner Door stopper Door stopper None Guardrail 1 Grab the Guardrail and squeeze it sideways Pull out and remove from the refrigerator ...

Page 19: ...ask Air duct mask None Ice tray Ice tray None 8 3 Light system Light Light None Pilot light Pilot light None Fresh light Fresh light None 8 4Air duct components refrigerating chamber and fan motor Air duct components in freezing chamber Air duct components in freezing chamber None Fan motor of air duct Fan motor of air duct None Damper assembly Damper assembly None 8 5 Evaporator and temperature s...

Page 20: ...rator None Sensor Sensor in freezing chamber None Sensor in refrigerating chamber Sensor in refrigerating chamber None Ambient temperature sensor None Sensor in Variable temperature chamber None Thermostat Thermostat The thermostat is located on back of the evaporator 1 Take down screws and gaskets on the evaporator The temperature sensing part of the thermostat is separated from the clamps of the...

Page 21: ...ide None Compressor and the cooling system pipe 1 Cut off the power remove the goods in the wine cooler with the tape to make the door fixed firmly and prevent the door dropping when the wine cooler dumping 2 Slowly tilt the wine cooler 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 ...

Page 22: ...haust pipe 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 6 Remove the protective cover Pry the protective cover slowly from the upper part Pull it out and remove it ...

Page 23: ...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 steps replace the compressor and reverse process can complete installation 10 Use Pipe cutter cut off the condenser tube then Shear off capillary by the capillary tube scissors ...

Page 24: ...elding the high pressure exhaust pipe 12 Replace the filter Cu Fe tubes welding used Ag welding rod Cu Cu tubes welding 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 tube Condenser fan motor Condenser fan motor None ...

Page 25: ...r None Piping system in the compressor case 1 condenser2 process pipe 3 dry filter4 capillary 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 ...

Page 26: ...y and installation of bar counter None Disassembly and installation bar doorseal None 8 10 Water dispenser Water dispenser Disassembly and installation of water valve None Disassembly and installation of water tank None 8 11Ice maker disassembly of ice maker Disassembly and installation of ice maker None Disassembly and installation of water system None Disassembly and installation ice machine sen...

Page 27: ...ture control If the ambient temperature is too high or the case of summer according to actual needs the thermostat adjusted to Min If the ambient temperature is too high or the case of summer according to actual needs the thermostat adjusted to Max 9 4 Control of standby function None 9 5 Control of ice maker None 9 6 Fault code and solutions None 9 7 Defrosting function None 9 8 Test mode None ...

Page 28: ...y None 10 2 Door trip test circuit None 10 3 Temperature test circuit None 10 4 Fan motor circuit of the freezing chamber None 10 5 Refrigerator fan motor circuit None 10 6 Condenser fan motor circuit None 10 7 Damper motor circuit None 10 8 Sensor resistance R T None ...

Page 29: ...ServiceManual_2018 V1 0 29 11 Troubleshooting Method 11 1 No cooling ...

Page 30: ...ServiceManual_2018 V1 0 30 11 2 No working of compressor ...

Page 31: ...ServiceManual_2018 V1 0 31 11 3 Inside frosting no defrosting None 11 4 Inside frosting no defrosting Maintenance guidelines ...

Page 32: ...ServiceManual_2018 V1 0 32 11 5 Light is not on 11 6 Air duct not operated electronically None 11 7 Fan failure None 11 8 Defective defrost circuit None ...

Page 33: ...ServiceManual_2018 V1 0 33 11 9 Noise ...

Page 34: ...ServiceManual_2018 V1 0 34 12 Figures and details of repair parts Documents are provided separately 12 1 Figures 12 2 List of parts and components ...

Page 35: ...screwdriver screw assemble and disassemble 2 slotted screwdriver scraper screw and rivet assemble and disassemble 3 Socket spanner 5 16 hinge and compressor screw assemble and disassemble 4 Sucker display panel and air duct cover disassemble 5 Allen wrench 2 8 4mm handle assemble and disassemble 6 Vise grip pliers sealing process tube ...

Page 36: ...ary 9 Knife assistive tool 10 Pipe cutter Flaring device Pipe cutting flaring 11 Electronic digital thermometer Test temperature 12 Multi meter Measurement with resistance voltage current and so on Equipment No Name Main Usage Photo 1 Vacuum pump with gauge vacuum pumping 2 Electronic scale weighing refrigerant gas ...

Page 37: ...rant will be used 5 Soldering gun heating and welding 6 hand leak detector welding point leakage detect if no use soap suds Material No Name Main Usage Photo 1 Process pipeline Charge the refrigerant 2 Dry filter Involving a system failure to be replaced 3 Copper welding rod Copper Copper tubes welding 4 Silver solder 25 Ag Not Copper Copper tubes welding 5 Refrigerant gas Add refrigerant to the s...

Page 38: ...ServiceManual_2018 V1 0 38 6 Adhesive tape Door fixing for reversing door 7 Transition copper pipe Aluminium Aluminium tubes welding maintain lengthen tubes ...

Page 39: ...ng 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 t...

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