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OA090-1.qxp 06.7.20 9:54 AM Page 1
HOME REFRIGERATOR
No. OA090
SERVICE MANUAL
Model
MR-G50J-SS-NZ
CONTENTS
Model name
1. FEATURES ····················································································2
indication
2. SPECIFICATIONS··········································································3
(Inside a door)
3. WIRING DIAGRAM········································································5
4. OUTLINES AND DIMENSIONS·············································
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Amount of polyphenol at the time of purchase OA090-1.qxp 06.7.20 9:54 AM Page 2 1 FEATURES MR-G50J-NZ 1. Vegetable compartment (1)Mechanism Rate of change in amount of polyphenol Two LED lights are mounted on the back and bottom (Cress stored for three days) of the vegetable compartment. The LED (UV LED) emits 375nm light, which is the effective wavelength About 1.2 times more for biosynthesis of polyphenol. This revolutionary polyphenol retained vegetable compartment stimulates self-defe
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OA090-1.qxp 06.7.20 9:54 AM Page 3 2 SPECIFICATIONS SPECIFICATIONS MR-G50J-NZ Power supply V,Hz 230V,50Hz 492 (R:264 F:82 V:97 I:12 S:37) Total capacity L mm (inches) Dimensions (H x W x D) 1798 x 745 x 699 (70-25/32 x 29-11/32 x 27-17/32) Cabinet Acrylic resin coated steel ABS resin Food liner Cabinet Foamed polyurethane (Cyclopentane) Insulation Freezer door Foamed polyurethane (Cyclopentane) Refrigerator door Foamed polyurethane (Cyclopentane) Freezer Forced air convection Cooling sys
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OA090-1.qxp 06.7.20 9:54 AM Page 4 ELECTRICAL PARTS SPECIFICATIONS MR-G50J-NZ Model ETI100E 13DAH Power supply 230V,50Hz Rated input 45/159 (1620/4800rps) W Compressor Starting current 2.0 (Current limiter) A Running current 0.63/2.19 (1620/4800rps) A Winding resistance (A.T.20°C) 9.27" Model MM3-71CCV Ambient temperature °C 25 Motor protector Time Sec. 16 or less Current A 17.0 Model NSCE001DC1 Three-way valve Type 4-phase stepping motor drive voltage DC12V Model Control board Defrosting time
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I.THERMISTOR SKY BLUE WHITE WHITE BROWN WHITE WHITE LIGHT BROWN V.THERMISTOR WHITE WHITE YELLOW DOOR SWITCH.(FOR R-COMPARTMENT & ICE MAKING COMPARTMENT) VERSA.THERMISTOR BRIGHT RED WHITE WHITE YELLOW YELLOW GREEN WHITE WATER PUMP DEF.THERMISTOR VIOLET WHITE WHITE PINK BLACK ICE-TRAY THERMISTOR LIGHT WHITE WHITE GREEN Vegetable compartment LED board F.THERMISTOR WHITE WHITE BLUE C.THERMISTOR YELLOW VIOLET WHITE WHITE GREEN BLACK R.THERMISTOR FAN MOTOR YELLOW WHITE WHITE ORANGE BRIGHT YELLOW ORANG
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Brown Blue Violet Violet Yellow Yellow Gray Violet Gray Black Black Violet White White Red Red Violet Violet Violet Light green Light green Light green Orange Orange Orange Black Black Black Black White Red Black Orange Violet Yellow Blue Yellow Red Gray Gray Yellow Blue White Yellow green Black Light brown Blue Brown Sky blue Yellow Bright yellow Yellow green Pink Light green Orange Sky blue Violet Violet Black Gray Black Sky blue Pink White Black Yellow White Blue Yellow green White Red Yellow
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OA090-1.qxp 06.7.20 9:54 AM Page 7 4 OUTLINES AND DIMENSIONS Unit : mm MR-G50J-NZ 699 (Display) 745 (Display) 72 10 740 (Cabinet) 607 10 5 284 456 324 324 313 318 249 275 249 337 400 262 440 5 363 284 456 329 392 351 669(Pitch between the rear wheels) 534 691(Pitch between the adjust bolts) 600 67 727(Pitch between the front wheels) 654 654 2500 642 655 203 374 203 367 196 REQUIRED SPACE FOR INSTALLATION 610 20 745 20 612 601 607 338 247 699 R(L) : Refrigerator compartment (Left) R(R) : Refri
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OA090-1.qxp 06.7.20 9:54 AM Page 8 5 REFRIGERANT CIRCUIT MR-G50J-NZ Muffler Evaporator Suction pipe Capillary tube Capillary tube {1.85 {0.635 2680(mm) {1.65 {0.675 2680(mm) Dryer #150 Cabinet pipe Three-way Charge pipe valve (Low pressure side) {6.35 Charge pipe Radiator (High pressure side) plate {4 Compressor 8
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OA090-1.qxp 06.7.20 9:54 AM Page 9 6 TROUBLESHOOTING 6-1 FUNCTION OF OPERATION PANEL MR-G50J-NZ (1) Function of normal operation REF VEG D L REF Min CHILL : SOFTF VR M QCK QCK ICE L M H VEG REG ICE F Z R H FZR ( ) STOP ECO CRL ICE ICE DEO SELECTION switch MODE switch QUICK MODE switch ECO MODE switch l The switch functions to set the l Each compartment can l Each compartment l The switch functions to be cooled rapidly. can be operated with operation mode or temperature select th
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OA090-1.qxp 06.7.20 9:54 AM Page 10 (2) Demonstration mode for shop display Demonstration mode is not available when the temperature of freezer compartment is -7: or less even if , and are simultaneously pressed for about 5 seconds and a “beep” sound is heard. Cooling operation starts instead. 1 1 Setting l Within one minute after power supply is turned on, simultaneously press , , and switch for about 5 seconds with the door of ice making compartme
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OA090-1.qxp 06.7.20 9:54 AM Page 11 2 2 Display After the setting is complete, the kinds of thermistor and its temperature are alternately shown on the panel. In case of abnormality, the display returns to current temperature. Please note that the temperature detected by thermistor may be a little different from the real one due to the influence of refrigerator temperature. Kind of Refrigerator Slide chilled Ice making Versa Ice making Vegetable Freezer Defrosting Outside air compartment com
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OA090-1.qxp 06.7.20 9:55 AM Page 12 (7) Damper Operation Mode During damper operation mode, the damper is forcibly opened and closed and the state of damper is shown on the panel. 1 1 Setting l With the ice making compartment door left open, simultaneously press and for about 3 seconds until a “beep” sound is heard, and “88” blinks. l With the door left open, simultaneously press and for about 3 seconds until a “beep” sound is heard. 2 2 Status display of e
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OA090-1.qxp 06.7.20 9:55 AM Page 13 (8) Error history display mode Error history can be observed in the error history display mode. Use this mode when the actual problem of the refrigerator is different from the error which was displayed at the service-call received. 1 1 Setting l Open the door of the ice making compartment, and press and together for 3 seconds until a “beep” is heard and and “88” blinks. l With the door left open, press and together for 3
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(current displayed error) Display error Self-check history. OA090-1.qxp 06.7.20 9:55 AM Page 14 6-2 FLOWCHART OF SELF-CHECK MR-G50J-NZ (1) Troubleshooting with self-check This refrigerator has self-check feature to clarify and indicate where & what the trouble is. You can perform operation checks and identify malfunction of electric or electronic parts. Error history is recorded and can be displayed by the refrigerator. A Self-check Error history mode (Refer to 6.1(8)) D Problem may recover au
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OA090-1.qxp 06.7.20 9:55 AM Page 15 (2) Timing in self-check Trouble of Defrost heater : Self-check is conducted after defrosting. (Make sure to confirm the display before unplugging the power cord because it is automatically reset once the power cord is pulled out.) Trouble of Ice maker : Press the switch on the panel for 5 seconds. (Ice making test mode.) The setting of ice making compartment blinks on LCD during the test operation. Trouble of Fan motor : Open the door and then closed
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OA090-1.qxp 06.7.20 9:55 AM Page 16 Detecting method Display Error code Trouble Check point Treatment Control (*3) Trouble of ice When there is a short or 1. Connector CN7S on control board, 6-pin, Repair the •When ice making compart- making com- open circuit in the ice 9-pin relay connector ment is used as “refrigera- contact failure. partment making compartment tor”, synchronize I-damper thermistor thermistor. with R-damper. 17 e •When ice making compart- 2. Check the resistance of thermisto
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OA090-1.qxp 06.7.20 9:55 AM Page 17 6-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD MR-G50J-NZ Operation P.C. board •Setting up temperature, feature, quick mode and eco mode for each compartment •Display of self-check •Outside air thermistor •Buzzer Control board Control circuit of refrigerator Inverter control circuit of compressor •Read/control each compartment tempera- •Inverter control of compressor ture (Neuro-fuzzy) •Inverter-drive power module •Control on timers •Detection of bus-bar voltage
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OA090-1.qxp 06.7.20 9:55 AM Page 18 (3) Operation by ice making test Ice stock detective The ice tray is Completion Water pump motor lever detects the rolled over and the When abnormality is operates. amount of ice. Press the switch system is reset. occurs, the error code for 5 seconds or Detective lever once Remove the lid of The ice tray rolls is displayed on the more. come down to detection the water tank then over once to drop (See “• Self check panel. point then return to the check t
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OA090-1.qxp 06.7.20 9:55 AM Page 19 6-5 FLOWCHART OF TROUBLE CRITERION MR-G50J-NZ Excessive cooling No cooling, poor cooling Are the temperatures of Are the temperature of No Set the temperatures No Set the temperatures refrigerator compart- refrigerator compart- to “Low”. to “High”. ment/ set to “Low”? ment/ set to “High”? Yes Yes Open the refrigerator Only food around the Yes Keep the food away No Proceed to [5] at page compartment door with air blowing part get from the blowing part a magn
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OA090-1.qxp 06.7.20 9:55 AM Page 20 Poor cooling No 1 Is the set temperature of freezer compartment set to “High”? Set the temperature to “High”. Yes No 2 Proceed to “The refrigerator fan motor does not work.” Does cool air come out of air outlet? Yes The baffles Operate the ice-making test at the place where the operation of do not Replace the motor damper (for freezer com- 3 function. dampers (Refrigerator compartment and slide compartment ther- partment ). mistor) is visible. Does the baff
