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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

written approval by the Overseas Sales Corporation of Midea Refrigerators.

Содержание HS-338FWEN-W

Страница 1: ...MODEL HS 338FWEN W Instruction Manual Upright Freezer...

Страница 2: ......

Страница 3: ...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 Maintena...

Страница 4: ...S 10 4 1 DEFINITION OF MODEL NONE 10 4 2LOCATION OF NAMEPLATE 10 5 PRODUCT SPECIFICATION 11 5 1 TYPESPECIFICATION NONE 11 5 2 ELECTRICAL PARAMETERS 11 5 3REFRIGERATING TEMPERATURE 11 5 4DEFROSTING PAR...

Страница 5: ...CIRCUIT 27 10 4FAN MOTOR CIRCUIT OF THE FREEZING CHAMBER 28 10 5REFRIGERATOR FAN MOTOR CIRCUIT NONE 29 10 6CONDENSING FAN MOTOR CIRCUIT NONE 29 10 7DAMPER MOTOR CIRCUIT NONE 29 10 8RESISTANCE VALUE OF...

Страница 6: ...1 1 Safety Warning Code 1 1Warning for operation safety...

Страница 7: ...2...

Страница 8: ...3...

Страница 9: ...4 1 2Safety instruction for refrigerant...

Страница 10: ...re is only for reference and specific appearance and configuration are subject to the real product 1 Full air cooling and frost free design 2 Display control board is located on the door 3 Magneticall...

Страница 11: ...appropriatelocation waitfor2hoursbe forepoweron 3 2Disassembly None The refrigerator door needs to be dismantled if it cannot enter the room in the whole 3 3 Installation location Location that is eas...

Страница 12: ...g direction 1 Remove the hinge cover and plates from the top of refrigerator 2 Pull out the fast connector of door signal wire remove the upper hinge screw then remove the upper hinge 3 Pull out the d...

Страница 13: ...en secure the bottom hinge to the bottom left side of the refrigerator 5 Remove the door block from the bottom right side of the door and attach it to the other side 6 Install the door and the signal...

Страница 14: ...nected from the source of electrical supply before attempting the installation of accessory Schematic diagram of handle installation Design sketch of installed handle 1 Remove the insert pin 2 Adjust...

Страница 15: ...Adjustment to level the door None 3 9 Adjustment to shelves None 4 Terms 4 1 Definition of model None 4 2Location of nameplate The picture is only for reference and specific appearance and configurat...

Страница 16: ...Y DRB12N61A1 Winding resistance of compressor wiring terminal Rmc 10 20 Rsc 30 50 Rms Rmc Rsc Motor Fan motor of the freezing chamber DC12V 3W Ventilation door of the refrigerating chamber Condensatio...

Страница 17: ...Defrosting parts Defrosting period Initial defrosting period Normal defrosting period Temperature is lower than 0 C 6 24 hours Defrosting sensor NTC B3839 Thermal fuse 73 77 Defrosting heater in freez...

Страница 18: ...am 2 Air duct components in freezing chamber 3 Flipping cover 4 Glass shelve 5 F upper drawer assembly 6 F middle drawer assembly 7 F bottom drawer assembly 8 Bottle frame in freezing chamber 9 Door h...

Страница 19: ...14 Down view Open Door Maximum open angle of door 135 The picture is only for reference and specific appearance and configuration are subject to the real product...

Страница 20: ...ng air7 1 Refrigerating piping system Compressor Condenser Anti condensation tube Dry filter Capillary tube Evaporator Regenerator Suction tube Compressor The picture is only for reference and specifi...

Страница 21: ...16 7 2Circulating route of cooling air The picture is only for reference and specific appearance and configuration are subject to the real product...

Страница 22: ...or seal out of door liner Door tray Lift up the bottle frame and take it out from the door liner of the refrigerator 8 2Parts inside the refrigerator Refrigerator Fruit box cover None Shelves None Ice...

Страница 23: ...in freezing chamber All accessories in the freezing chamber should be dismantled before removing the air duct components 1 use cross screwdriver to remove the 2 pcs screws of air duct cover 2 Pull ou...

Страница 24: ...the fuse 3 Separate the fuse and the evaporator Don t break 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 ev...

Страница 25: ...1 The sensor is located at the freezer chamberBefore pull out the sensors must be removed the air duct cover of freezer chamber 2 Remove the sensors 8 6Compressor case Rear cover and compressor case N...

Страница 26: ...ide 2 Remove the clipping strip Slowly pull it out 3 Remove the protective cover 1 Pry the protective cover slowly from the upper part 2 Pull it out and remove it 4 Remove the starter and protector Un...

Страница 27: ...Disconnect the connector of main control board remove it 8 8 Bar counter None Disassembly and installation of bar counter None Disassembly and installation bar doorseal None 8 9 Water dispenser None D...

Страница 28: ...9 Function and operation9 1 Operation panel See figure below for buttons and display arrangement of human machine interface Gear 5 Gear 4 Gear 3 Gear 2 Gear 1 Super Freeze 9 2 Button SET Gear set butt...

Страница 29: ...freezer mode Operation The super indicator light is on and the refrigerator is running at super freezer mode Exit 1 Ssuper freezer mode running 24hour 2 Super freezer mode the temperature can be cool...

Страница 30: ...per the accumulative operation time of the Compressor 2 If power failure occurs abruptly to the Compressor and the defrosting sensor in freezing chamber is less than 0 o C after powering on then first...

Страница 31: ...erator will exit the test mode and return to normal operation mode Select to exit the test mode Enter into test mode and press button for the third time then the refrigerator will exit the test mode a...

Страница 32: ...sing through the adjustor 7805 to power for the main control chip and thus monitor the temperature changes in refrigerator 10 2Door trip test circuit The door switch input circuit is used to detect th...

Страница 33: ...nges 7 3 per degree centigrade Sensor used in the refrigerator is NTC thermistor There is following computing formula for the sensor Sampling voltage reference voltage R1 RNTC R1 AD value reference AD...

Страница 34: ...1 15 14 31 0 6 495 15 3 141 30 1 617 29 31 85 14 13 55 1 6 175 16 2 999 31 1 55 28 30 01 13 12 83 2 5 873 17 2 865 32 1 486 27 28 29 12 12 16 3 5 587 18 2 737 33 1 426 26 26 68 11 11 52 4 5 315 19 2 6...

Страница 35: ...30 11 Troubleshooting Method 11 1 No refrigeration...

Страница 36: ...31 11 2 Compressor failure 11 3 Defrosting is not working...

Страница 37: ...32 11 4 Fan in the freezing chamber is abnormal Refer to this method for other fans 11 5 Damper is abnormal None 11 6 Lights inside the refrigerator don t light up...

Страница 38: ...ded separately 12 1 Figure 12 2 List of parts and components 13Appendix 13 1Electrical Schematic Diagram Model 13 2refrigerator maintenance tooling and equipment and material Tooling No Name Photo Mai...

Страница 39: ...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 plie...

Страница 40: ...ar capillary Equipment No Name Photo Main Usage 1 Vacuum pump vacuum pumping 2 Electronic scale weighing refrigerant gas 3 High pressure nitrogen with piezometer pipe and cooling system condenser evap...

Страница 41: ...ing point leakage detect if no use soap suds material No Name Photo Main Usage 1 Process pipeline Chargetherefrigerant 2 Dry filter Involving a system failure to be replaced 3 Copper welding rod tube...

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