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Service Manual_2017-V1

38

11. Troubleshooting Method

11.1 No cooling(Air cooling-Electronic)

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Summary of Contents for 22031020001681

Page 1: ...d configuration are subject to the real product Applicable Models Model Code UL BCD595WE SQ 22031020003381 UL BCD595WE SQ 22031020001681 UL BCD595WE SQ 92031020Z00029 UL BCD595WE SQ 92031020Z00041 UL BCD595WE SQ 92031020Z00042 Prepared by R D Liu lu Reviewed by QA huang juan SVC Zhang Kun Approved by R D Geng xiuhua SVC Guang Taoshuai ...

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 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 Mi...

Page 3: ...S 14 4 1 DEFINITION OF MODEL NONE 14 4 2 LOCATION OF NAMEPLATE NONE 14 5 PRODUCT SPECIFICATION 15 5 1 TYPE SPECIFICATION NONE 15 5 2 ELECTRICAL PARAMETERS 15 5 3 INSIDE TEMPERATURE 16 5 4 DEFROSTING PARTS 16 5 5 CIRCUIT DIAGRAM 16 6 INTERNAL VIEW AND DIMENSION 17 6 1 MAIN PARTS AND THEIR NAMES 17 6 2 EXTERNAL DIMENSION 18 7 REFRIGERATING PIPING SYSTEM AND CIRCULATING ROUTE OF COOLING AIR 19 7 1 RE...

Page 4: ...ING CHAMBER 36 10 5 REFRIGERATOR FAN MOTOR CIRCUIT NONE 36 10 6 CONDENSER FAN MOTOR CIRCUIT NONE 36 10 7 DAMPER MOTOR CIRCUIT NONE 36 10 8 SENSOR RESISTANCE R T 36 11 TROUBLESHOOTING METHOD 38 11 1 NO COOLING AIR COOLING ELECTRONIC 38 11 2 NO WORKING OF COMPRESSOR 39 11 3 INSIDE FROSTING NO DEFROSTING 39 11 4 INSIDE FROSTING NO DEFROSTING MAINTENANCE GUIDELINES 40 11 5 LIGHT IS NOT ON 41 11 6 AIR ...

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: ...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 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 th...

Page 7: ...tions 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 Refrigerant Used To Be Repaired Only B...

Page 8: ...wing features 1 Full air cooling and frost free design 2 Electronic temperature control system with more accurate temperature control 3 The crisper for fruits and vegetables can be adjusted in humidity 4 Space is reserved for ice maker and customers can purchase the matching ice maker to install ...

Page 9: ...appropriate location wait for 2 hours before power on 3 2 Door Disassembly and Assembly The refrigerator 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...

Page 10: ...d from the door shelves Remove all food from the inner door liner Tape the door shut with masking tape Remove the left cover plate and the right top hinge cover then unscrew screws and remove the right top hinge Keep the screws to reuse 2 Lift the freezer door up and away from your refrigerator Unscrew screws holding the center hinge remove the hinge then lift the refrigerator door up and away fro...

Page 11: ...e and move it to the left side then secure the bottom hinge to the bottom left side of the refrigerator using the screws you removed previously 5 Remove the hole cap from the top left of the refrigerator door and insert it in the other side 6 Remove the door block from the bottom right side of the freezer and refrigerator door and attach it to the other side ...

Page 12: ...ver the hinge with the top left hinge cover and cover the screw holes on the right side of the top with the cover plate you previously removed 9 Remove the screw caps on the door handles then remove the four Allen screws securing the handles to the left side of the doors with the Allen wrench Remove the handles 10 Remove the four Phillips head screws from the left side of the door Screw the four P...

Page 13: ...screws to install the handle The screws in the hole at the side of the handle and turn the screws till them very tight Screw cap should be put on the screw 3 7 Installation of door lock Installation of door lock Installation of door lock None 3 8 Adjustment to level the door Adjustment to level the door Adjustment to level the door None 3 9 Adjustment to shelves Adjustment to shelves Adjustment to...

Page 14: ...Service Manual_2017 V1 14 4 Terms 4 1 Definition of model None 4 2 Location of nameplate None ...

Page 15: ...of compressor wiring terminal Rmc 4 18 7 Ω Rsc 4 58 7 Ω Rms Rmc Rsc Rmc 3 88 7 Ω Rsc 4 51 7 Ω Rms Rmc Rsc None None Winding resistance picture None None Variable frequency driver board None None None None Motor Fan motor of the freezing chamber DC12V 4W DC12V 4W None None Ventilation door of the refrigerating chamber None None None None Condensation fan None None None None separation the ice motor...

Page 16: ... Item Initial defrosting period Normal defrosting period Defrosting period Temperature is lower than 0 o C 6 24 hours Defrosting sensor B3839 B3839 Defrosting temperature controller None None Thermal fuse Can t be restored 77 Can t be restored 77 Defrosting heater in freezing chamber 115V 200W 115V 200W 5 5 Circuit diagram BCD595WE 22031020003381_22031020001681_92031020Z00041_92031020Z00029_920310...

Page 17: ...mber Refrigerator chamber Air duct components in freezing chamber Steel wire shelf Bottle frame in freezing chamber Air duct components in refrigerating chamber Glass shelf Cover plate of crisper Crisper for fruit and vegetable Regulating foot Storage box Small bottle frame in refrigerating chamber ...

Page 18: ...External dimension Description Code Size mm Height to Top of Case A 1687 None None Width B 837 None None Depth w o Handles C 837 None None Depth 90 deg with Door Open D 734 None None Width door open 90 deg w handle E None None None ...

Page 19: ...ting route of cooling air 7 1 Refrigerating piping system BCD595WE 22031020003381_22031020001681_92031020Z00041_92031020Z00029_92031020Z000 42 Compressor Right condenser Anti condensation tube Left Condenser Dry filter Capillary tube Evaporator Suction tube Compressor ...

Page 20: ...Service Manual_2017 V1 20 7 2 Circulating route of cooling air ...

Page 21: ... up the baffle and take it out from refrigerator liner Door stopper Door stopper None rollover beam rollover beam None 8 2 Parts inside the refrigerator Refrigerator Fruit box cover Remove the crisper cover of ref compartement accordin g to below steps 1 1 Take out the crisper firstly 2 2 Pull out the crisper cover completely Shelves 1 Lift up the division plate with a proper force and pull it out...

Page 22: ...l normal screwdriver and pull out the switch until the wire connector reveals Pilot light Pilot light None Fresh light Fresh light None 8 4Air duct and fan motor Air duct components in freezing chamber All accessories in the freezing chamber should be dismantled before removing the air duct components 1 Remove 2 screws on the cover plate of the freezing air duct using a cross screwdriver 2 Pull ou...

Page 23: ...motor assembly can be taken out Separate the fan blade from fan motor pull forcibly Use screwdriver to remove the screw then separate the bracket from fan motor Change the fan motor the reverse operation for assembly Damper assembly Damper assembly None 8 5 Evaporator and temperature sensing system Evaporator in freezing chamber ...

Page 24: ...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 off the band which fixes the sensor 3 Separate the sensor and the evaporator Don t break the welding of the evaporator in case that only the sensor needs to be replaced Defrost heater The defrost heater is located...

Page 25: ...dumping Evaporator in refrigerating chamber Evaporator in refrigerating chamber None Components on the evaporator None Sensor Sensor in freezing chamber Sensor in freezing chamber None Sensor in refrigerating chamber 1 Before remove the sensor the refrigerating duct assembly should be removed Remove the air duct assembly from the refrigerating 2 Remove the sensor Ambient temperature sensor Sensor ...

Page 26: ...ne to prevent its falling 3 Cut off the compressor pipeline Cut off the process pipeline Cut off the low pressure muffler Cut off the high pressure exhaust 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 ...

Page 27: ... 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 steps replace the compressor and reverse process can complete installation ...

Page 28: ...Replace the compressorand welding the compressor pipeline Welding the process pipeline Welding the low pressure muffler Welding 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 ...

Page 29: ... of the process pipe then seal welding process tube Condenser fan motor Condenser fan motor None Standby condenser Standby condenser None Piping system in the compressor case Drain tray 1 Disengage the drain tray buckle out of the compressor bottom plate installation hole ...

Page 30: ...duct 4 Gently pry out the PCB installation box with a straight screwdriver to get the master control board and installation box components 5 Pry open the buckle of the PCB installation box with a straight screwdriver to see the PCB board 6 Remove 2 screws using a cross screwdriver to remove the master control board 7 Pull out the connector terminal and replace the master control board in reverse s...

Page 31: ...nstallation 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 sensor None ...

Page 32: ...ion display 1 When failure occurs the corresponding LED light group will display fault code circular display 2 If no failure occurs the current operation gear will be displayed 9 3 Setting of the gear Press the gear setting button SET once the gear will be changed once 5 seconds after setting the gear the refrigerator will be running in accordance with the set value The gear can be set to Setting ...

Page 33: ...D1 and LED4 simultaneously Ambient temperature sensor fault Step 1 Check whether the terminal CN3 of main control board is well stuck pull out the terminal and re stick it in place Step 2 Check to see if there re foreign matters on the terminal Pull out the defrost sensor in freezing chamber according to the method in described in Article 8 5 and then inspect the sensor against the resistance valu...

Page 34: ...icators on Gear 3 4 and 5 light up and other LED indicators light on then the compressor and the fan will stop working The heater open refrigerator into forced frost In forced defrosting mode when the defrosting sensor reach a temperature of 8 C and the defrosting heater has been working for 3 minutes then the refrigerator will exit the test mode and return to normal operation mode In forced defro...

Page 35: ...rrent loaded switches of compressor ice maker and defrost heater The DC 12V power will output stable 5V electricity after passing through the adjustor 7805 to power for the main control chip and thus monitor the temperature changes in refrigerator 10 2 Door trip test circuit None 10 3 Temperature test circuit It s conducted by the sensor making use of the characteristics that resistance value redu...

Page 36: ...eezing chamber The fan in the freezing chamber is running when the compressor is operating Check 12V and FAN to see if there is a voltage of 12V When in normal operation the fan is in low level and the voltage between 12V and FAN is more than 11V If there s no voltage when the compressor is in operation fan motor or electric control panel can be replaced 10 5 Refrigerator fan motor circuit None 10...

Page 37: ...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 01 6 8 841 9 4 167 24 2 094 39 1 115 20 18 9 5 8 392 10 3 972 25 2 005 40 1 071 19 17 87 4 7 968 11 3 788 26 1 919 41 1 029 18 16 9 3 7 568 12 3 613 27 1 838 42 0 9885 17 15 98 2 7 19 13 3 447 28 1 761 43 0 9506 16 15 12 1 6 833 14 3 29 29 1 687 44 0 914 ...

Page 38: ...Service Manual_2017 V1 38 11 Troubleshooting Method 11 1 No cooling Air cooling Electronic ...

Page 39: ...Service Manual_2017 V1 39 11 2 No working of compressor 11 3 Inside frosting no defrosting ...

Page 40: ...Service Manual_2017 V1 40 11 4 Inside frosting no defrosting Maintenance guidelines ...

Page 41: ...Service Manual_2017 V1 41 11 5 Light is not on 11 6 Air duct not operated electronically None 11 7 Fan failure ...

Page 42: ...Service Manual_2017 V1 42 11 8 Defective defrost circuit 11 9 Noise ...

Page 43: ...Service Manual_2017 V1 43 12 Figures and details of repair parts Documents are provided separately 12 1 Figures none 12 2 List of parts and components none ...

Page 44: ...ssemble 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 7 Nipper pliers diagonal pliers Assistive tooling ...

Page 45: ...1 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 3 High pressure nitrogen with piezometer pipe and cooling system condenser evaporator etc impurities clean ...

Page 46: ...ding 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 system 6 Adhesive tape Door fixing for reversing door ...

Page 47: ...Service Manual_2017 V1 47 7 Transition copper pipe Aluminium Aluminium tubes welding maintain lengthen tubes ...

Page 48: ...g 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 th...

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