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Service Manual_2020-V1.0

33

8. Temperature sensing system

8.1 Position of sensors

8.2 Replacement of sensors

Sensor in freezer chamber

The sensor is located at right of freezer chamber

1

）

Pull out the cover

Position of sensors

Have 3 sensors

①

Sensor in freezing chamber

②

Sensor in refrigerating chamber

③

Sensor in Variable temperature chamber

④

Ambient temperature

or humidity sensor

⑤

Ice machine sensor

⑥

Defrost sensor in refrigerating chamber

⑦

Defrost sensor freezing chamber

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Summary of Contents for HS-625FWEN

Page 1: ...plicable Models HS 625FWEN UR BD481WE1 DT 22031010002604 The picture in this service manual is only for reference and specific appearance and configuration are subject to the real product This manual...

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: ...SYSTEM 14 5 1 ELECTRICAL PARTS PARAMETERS 14 5 2 CIRCUIT DIAGRAM 16 5 3 MAIN PCB TERMINAL CONNECTION DIAGRAM 17 5 4 INVERTER BOARD TERMINAL CONNECTION DIAGRAM NONE 18 6 REFRIGERATION SYSTEM 19 6 1REFR...

Page 4: ...DE AND SOLUTIONS 38 9 7 TEST MODE 39 9 8 DEMO MODE NONE 39 9 9 BACKUP DATA FOR POWER FAIL 39 10 COMPRESSOR 40 10 1 COMPRESSOR ON AND OFF CONTROL SPECIFICATIONS 40 10 2 INVERTER BOARD FAULT ANALYSIS NO...

Page 5: ...Service Manual_2020 V1 0 5 1 Significant update notes None...

Page 6: ...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 blad...

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: ...g it to appropriate location wait for 2 hou rs before power on 3 2 Door Disassembly and Assembly When the whole refrigerator cannot enter the room the door can be disassembled then assembled after ent...

Page 10: ...f the refrigerator cannot be placed steadily adjust the footing to level it Turn the feet clockwise to raise the refrigerator turn the feet counterclockwise to lower the refrigerator 3 5 Left or right...

Page 11: ...Service Manual_2020 V1 0 11 4 Main parts and external dimension 4 1 Main parts The picture is only for reference and specific appearance and configuration are subject to the real product...

Page 12: ...ription Code Size mm Height to top of Cabinet A 1650 Width B 830 Depth w Cabinet C 660 Depth w Door D 735 Depth w Handle E Depth Door open 90 deg w F 1528 Depth Door open 135 deg w G 1310 Width Door o...

Page 13: ...1 Product Serial Number Including order number production date and other information When the product occur problem it needs to be recorded or photographed and provided to us 2 Paste location Some pr...

Page 14: ...inding resistance of compressor wiring terminal 20 Rmc 4 89 7 Rsc 9 54 7 Rms Rmc Rsc Winding resistance picture Starter PTC QP2 4R7 Part code 12031000001063 Overload protector OLP DRB33T61A1 Part code...

Page 15: ...020 V1 0 15 Switch of the light Mechanical switch Magnetism control switch Defrosting parts Defrosting sensor NTC B3839 B5 25 3839K 2 Fuse in freezing chamber 115V 77 0 5 Defrost heater in freezing ch...

Page 16: ...Service Manual_2020 V1 0 16 5 2 Circuit diagram A Ambient temperature...

Page 17: ...m p r e s s o r D e f r o s t h e a t e r L E D 1 5 V G N D K E Y L E D 2 L E D 3 L E D 4 R e f s e n s o r A m b i e n t t e m p e r a t u r e s e n s o r F r o z e n f r o s t s e n s o r R e f d o...

Page 18: ...Service Manual_2020 V1 0 18 5 4 Inverter board terminal connection diagram None...

Page 19: ...ration system 6 1 Refrigeration system working principle Compressor Right condenser Anti condensation tube Left Condenser Dry filter Capillary tube Evaporator Suction tube Compressor 6 2 Cooling pipel...

Page 20: ...elding points in chambers or foam layer 1 Welding points on freezer evaporator Welding point Pipe outer diameter mm 1 Freezer capillary and inlet of evaporator Copper pipe 6 Copper pipe 6 35 2 Heat tr...

Page 21: ...ser tube Steel pipe 4 0 Copper pipe 4 0 4 Outlet of left condenser tube and inlet of dry filter Steel pipe 4 0 Copper pipe 5 0 5 Outlet of dry filter and inlet of freezer capillary Copper pipe 2 8 Cop...

Page 22: ...iner Door tray While squeezing it inward lift up the door tray and take it out from door liner Door stopper After removing the door remove the fixing screws at the position shown in the figure remove...

Page 23: ...Light Light of the freezing 1 Remove the lamp cover 2 Disconnect the terminal block remove the LED 3 The reverse process can complete installation Light switch 1 Remove the screws on the hinge cover 2...

Page 24: ...should be dismantled before removing the air duct components 1 Remove 1 screws on the cover plate of the freezing air duct using a cross screwdriver 2 Open the cover plate pull out the terminal and ta...

Page 25: ...e 3 pcs screws 3 Take off the fan motor replace a new one the reverse operation is for assembly 7 6 Evaporator and Defrost system Evaporator in freezing chamber 1 Remove the air duct components in fre...

Page 26: ...d the evaporator 5 Take off the defrost heater from the supporting plate of evaporator 7 7 Compressor case Rear cover None Piping and parts in the compressor case 1 Power cord 2 Dry filter 3 Capacitor...

Page 27: ...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 T...

Page 28: ...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 com...

Page 29: ...eplace the compressor and 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...

Page 30: ...ain tray Remove the two fixing screws on the drain tray and pull it out replace a new one 7 8 Display control board Display control board 1 Uncover the temperature control indication sticker on the co...

Page 31: ...out the connector terminal and replace the master control board in reverse steps 6 The temperature control indication sticker is likely to be damaged when replacing PCB thus it is advised to prepare o...

Page 32: ...o remove the lock at the arrow and remove the lock upward b After the lock is removed press the hook to remove the wiring connectors 3 Remove the screws take out the main control board and complete th...

Page 33: ...The sensor is located at right of freezer chamber 1 Pull out the cover Position of sensors Have 3 sensors Sensor in freezing chamber Sensor in refrigerating chamber Sensor in Variable temperature cham...

Page 34: ...1 0 34 2 Pull out the sensor Ambient temperature sensor The sensor is located in the wire box of the refrigerator top Defrost sensor in freezing chamber 1 Cut off wiring terminal 2 Cut off the band wh...

Page 35: ...ged head of sensor Strip 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 t...

Page 36: ...5 315 29 84 20 1 687 20 4 00 18 90 5 41 00 5 060 30 86 00 1 617 19 2 20 17 87 6 42 80 4 818 31 87 80 1 550 18 0 40 16 90 7 44 60 4 589 32 89 60 1 486 17 1 40 15 98 8 46 40 4 372 33 91 40 1 426 16 3 2...

Page 37: ...Refrigeration freezing mode switch In the unlocked state press and hold button A for three seconds to change the refrigeration freezing mode When the LED FRZ REF lights up it means that the freezing m...

Page 38: ...t heating exit and the set temperature 7 45 which refrigerat defrost heating exit 2 When the defrosting sensor has no fault the defrosting time is 60 minutes 3 When the defrosting sensor is faulty the...

Page 39: ...e powered off and then on again 9 7 1 Enter Press the button once when the power is fully displayed Within 10 seconds press the button 9 times in a row and 4 indicator lights flash simultaneously indi...

Page 40: ...l stop at least 10 minutes 1 2 When compressor shutdown time has been more than 5 min one of the following conditions is met the compressor starts up 1 Measured temperature in freezer chamber Start up...

Page 41: ...Service Manual_2020 V1 0 41 11 Troubleshooting Method 11 1 No cooling Air cooling Electronic...

Page 42: ...Service Manual_2020 V1 0 42...

Page 43: ...Service Manual_2020 V1 0 43 11 2 No working of compressor...

Page 44: ...Service Manual_2020 V1 0 44 11 3 Inside frosting no defrosting...

Page 45: ...Service Manual_2020 V1 0 45 11 4 Inside frosting no defrosting Maintenance guidelines...

Page 46: ...Service Manual_2020 V1 0 46 11 5 Light is not on...

Page 47: ...Service Manual_2020 V1 0 47 11 6 Fan failure 11 7 Defective defrost circuit...

Page 48: ...Service Manual_2020 V1 0 48 11 8 Noise 11 9 Air duct not operated Option...

Page 49: ...Service Manual_2020 V1 0 49 11 10 Ice maker not make ice Option...

Page 50: ...Service Manual_2020 V1 0 50 12 Product exploded view and spare parts list Please log in to TSP system to view and download these contents...

Page 51: ...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 abo...

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