Midea HC-957WEN, Service Manual

Page 1: ...Models HC 957WEN UR BCD746WE DT 22031050000741 The picture in this service manual is only for reference and specific appearance and configuration are subject to the real product This manual mainly tea...

Page 2: ...rmission 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 mechani...

Page 3: ...16 5 2 EXTERNAL DIMENSION 17 5 3LOCATION OF S N 18 6 PRODUCT SPECIFICATION 19 6 1ELECTRICAL PARAMETERS 19 6 2COOLING TEMPERATURE SETTING RANGE 20 6 3DEFROSTING PARTS 20 6 4CIRCUIT DIAGRAM 20 6 5MAIN...

Page 4: ...10 6CONTROL OF ICE MAKER 47 10 7 CELSIUS FAHRENHEIT CONVERSION 47 10 8FAULT CODE AND SOLUTIONS 47 10 9DEFROSTING FUNCTION 50 10 10 EYE ICE MACHINE TEST MODE 50 10 11BACKUP DATA FOR POWER FAIL 50 11 CO...

Page 5: ...Service Manual_2018 V2 0 5 1 Significant update notes None...

Page 6: ...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 b...

Page 7: ...e 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...

Page 8: ...tions 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 a...

Page 9: ...rotect the refrigerator in moving it Same as shown as left photo please move it by handcart with cushion 2 Remove all packing materials and bottom cushion the move into house for placement 3 After mov...

Page 10: ...r connector and then push the locked cushion inwards meantime pull out water pipe Note please make sure the fast connector can t be left at the end of water pipe of door 3 As shown as right photos use...

Page 11: ...ews by anticlockwise and then remove the upper hinge Note please make sure the refrigerator door fit closely to the cabinet otherwise the refrigerator door may fall down during above operation 2 Lift...

Page 12: ...sert the water pipe into the water connector to the end and finally assemble the spacing guard sheet Note the water pipe can t be connected incorrectly only the water pipes in same color can be connec...

Page 13: ...Put the hinge cover on suitable position and then use the screwdriver to fix the 5 pcs screws 4 2Installation location Installation location Location that is easy for ventilation shall be chosen to fa...

Page 14: ...ion of door lock Installation of door lock None 4 7Adjustment to level the door Adjustment to level the door Upanddown 1 Refrigerator door lower loosen locking nut counterclockwise then rotate the adj...

Page 15: ...t the hinge cover on suitable position and then use the screwdriver to fix the 5 pcs screws Adjustmentto plane the door left and right 1 Use screwdriver to remove the 5 pcs screws and then remove the...

Page 16: ...ference and specific appearance and configuration are subject to the real product Freezer chamber Refrigerator chamber 1door rack 2ice tank 3shelf 45door rack 6shelf 7drawer 8shelf 9drawer 10door rack...

Page 17: ...e HC 970WE Size mm Height to Top of Case A 1775 Width B 911 Depth w Handle C 860 Depth w Handle C1 860 Depth Door open 90 deg w D 1273 Width Door open 90 deg w E 1039 Depth Door open 135 deg w F 1226...

Page 18: ...Service Manual_2018 V2 0 18 5 3Location of S N Some products also have S N on the lower part of the right side of the Cabinet...

Page 19: ...ower reactor None Winding resistance of compressor wiring terminal Rmc 9 30 5 Rsc 9 30 5 Rms 9 30 5 Winding resistance picture The input power of compressor 165W Motor Fan motor of the freezing chambe...

Page 20: ...eezing 14 22 Refrigerating 7 1 6 3Defrosting parts electronic type Item Specification Defrosting sensor NTC B3839 Fuse 77 Defrost heater in freezing chamber 115V 240W 6 4Circuit diagram F Freezer R Re...

Page 21: ...Service Manual_2018 V2 0 21 6 5 1 Ice maker control board structure diagram 6 6Electric exchange valve NONE Model Specification None None...

Page 22: ...Service Manual_2018 V2 0 22 6 7Water valve Model Specification 115V 20W Compressor case 12V 360mA refrigerating chamber...

Page 23: ...piping system and circulating route of cooling air 7 1 Refrigerating piping system Compressor Condenser Anti water condensed pipe Drier Capillary Tube Evaporator Suction Pipe Suction connection Pipe C...

Page 24: ...Service Manual_2018 V2 0 24 7 3Circulating route of cooling air...

Page 25: ...nto door liner groove 1 Open the refrigerator door 2 Take the door seal out of door liner Door tray While squeezing it inward lift up the baffle and take it out from refrigerator liner 8 2Parts inside...

Page 26: ...l the lampshade outwards 2 Push away LED light panel with your hand along the arrow direction shown in the picture and separate LED light panel from the hook then take down LED light panel 3 Remove th...

Page 27: ...hamber 1 Remove by cross screwdriver the screws on the positions shown in the picture anticlockwise Remove the filter along the arrow direction then remove the decoration cover of refrigerator air duc...

Page 28: ...ir duct foam is separated from refrigerator body and take out refrigerating air duct foam Fan motor of air duct None Electric damper None 8 5 Air duct components in freezing chamber and fan motor Air...

Page 29: ...snap joint of upper air duct outward to make cover plate of upper air duct in freezing chamber fall off from air duct After the removal of upper air duct in freezing chamber take out the one crew with...

Page 30: ...the welding of the evaporator in case that only the fuse needs to be replaced Defrost sensor The defrost sensor is located on top of the evaporator 1 Disconnect the connector of defrost sensor 2 Cut o...

Page 31: ...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 t...

Page 32: ...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...

Page 33: ...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 pro...

Page 34: ...ure muffler Welding the high pressure exhaust pipe 12 Replace thefilter 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...

Page 35: ...fan bracket towards the direction what the arrows indicate Back hanging wire tube condensor None Piping system in the compressor case Suction Pipe Capillary Tube Anti water condensed pipe Drier Compr...

Page 36: ...play control board Display control board 1 Use vacuum cap to pull the control panel outwards 2 Disconnect the fast connector then remove the control PCB display control panel 1 Use vacuum cap to pull...

Page 37: ...ove the screw anticlockwise then remove the PCB and variable frequency driver board 8 10 Bar counter None 8 11 Water dispenser Water dispenser Disassembly and installation of water valve 1 Remove by c...

Page 38: ...ssembly of ice maker 1 As shown in the photo please up lift the ice storage box assembly and pull it out then the ice storage box can be taken out 2 Pull the ice tray assembly outwards forcefully and...

Page 39: ...connect the wiring connector then the motor can be taken out from refrigerator 8 13water filter component ADisassembly of filter built in Shut off the water supply squeeze the mounting box of filter b...

Page 40: ...Service Manual_2018 V2 0 40 Before using the dispenser dispense at least 1 gallon of water to purge trapped air from the system after replacing the filter...

Page 41: ...sensor out from card slot Sensor in refrigerating chamber 1 remove the decoration cover of refrigerator air duct until air duct decoration cover refer to 1 2 of 8 4 2 Tear up the sponge take the sens...

Page 42: ...r hinge cover of refrigerating chamber door Defrost sensor in freezing chamber The defrost sensor is located on top of the evaporator 1 Disconnect the connector of defrost sensor 2 Cut off the band wh...

Page 43: ...off the sensor wiring 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 an...

Page 44: ...315 19 2 616 34 1 368 25 25 17 10 10 92 5 5 06 20 2 501 35 1 312 24 23 76 9 10 35 6 4 818 21 2 391 36 1 259 23 22 43 8 9 82 7 4 589 22 2 287 37 1 209 22 21 18 7 9 316 8 4 372 23 2 188 38 1 161 21 20...

Page 45: ...machine on off control button Energy saving mode button Lock unlock button GWhole ice mode HWater outlet mode ICrushed ice mode 10 2 Display When the power is on for the first time full display shall...

Page 46: ...utomatically restored to the set temperature before the quick freezing mode ENERGY SAVING mode the refrigerator compartment will work as the setting temperature is 7 C 44 F while the freezer compartme...

Page 47: ...to Fahrenheit and Back again 10 8Fault code and solutions Note midea full common fault code combined with the actual product display reference Fault code Fault content Steps for maintenance methods E...

Page 48: ...tep 3 Replace main control board Step 4 Replace electrical wiring main harness E5 Defrost sensor fault in freezing chamber Step 1 Check whether the terminal of defrost sensor in main control board is...

Page 49: ...uit fault of ice maker sensor Step 1 Check whether the terminal ice maker sensor of main control board is well stuck pull out the terminal and re stick it in place and check if there is any foreign ma...

Page 50: ...r in evaporating pan evaporate away finally Defrosting steps Compressor switch off air duct closed the fan in freezer chamber works for 3 10 min for different kinds of refrigerators the time is differ...

Page 51: ...sor maintains the original state 11 2Variable frequency driver board fault analysis running status of LED Fault cause not Light not Working Blink once light 1S extinguish1S Standby Blink once light 0...

Page 52: ...Service Manual_2018 V2 0 52 12 Troubleshooting Method 12 1 No cooling Air cooling Electronic...

Page 53: ...Service Manual_2018 V2 0 53 12 2 No working of compressor 12 3 Inside frosting no defrosting...

Page 54: ...Service Manual_2018 V2 0 54 12 4 Inside frosting no defrosting Maintenance guidelines...

Page 55: ...Service Manual_2018 V2 0 55 12 5 Light is not on 12 6Fan failure...

Page 56: ...Service Manual_2018 V2 0 56 12 7Defective defrost circuit 12 8Noise...

Page 57: ...perated electronically 12 10ice maker not make ice Keep pressing the FRE and Energy Saving button for 3s enter exit EYE Erter EYE the display digital of ice machine mode will blink and water gets into...

Page 58: ...Service Manual_2018 V2 0 58 13 Figures and details of repair parts See this section in the TSP...

Page 59: ...ng please contact your local authority or where you purchased your product MIDEAappliances after sales website For more information about Midea appliances after sales please visit the tsp midea com Fo...