Gebruiksaanwijzing /service van het product MR-G50J-SS-NZ van de fabrikant Mitsubishi Electronics
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SER VICE MANUAL Model MR-G50J-SS-NZ NZ ············New Zealand CONTENTS 1. FEA TURES ····················································································2 2.
2 FEA TURES 1 MR-G50J-NZ 1. V egetable compartment (1)Mechanism T wo LED lights are mounted on the back and bottom of the vegetable compartment. The LED (UV LED) emits 375nm light, which is the effective wavelength for biosynthesis of polyphenol.
3 SPECIFICA TIONS 2 SPECIFICA TIONS 230V ,50Hz 492 (R:264 F:82 V :97 I:12 S:37) 1798 x 745 x 699 (70-25/32 x 29-1 1/32 x 27-17/32) Acrylic resin coated steel ABS resin Foamed polyurethane (Cyclopentan.
4 MR-G50J-NZ W A A ° C Sec. A ° C ° C W rpm W rpm ° C Compressor Motor protector Heater (Rating) Freezer compartment Refrigerator Machine Chamber Fan motor Defrosting control Ice maker temperature Model Power supply Rated input Starting current Running current Winding resistance (A.
5 WIRING DIAGRAM 3 MR-G50J-NZ ( SKEL TON WIRING DIAGRAM ) ICE MAKING TRA Y HEA TER V egetable compartment heater 2 V egetable compartment heater 1 CONTROL BOARD, N/F BOARD INVERTER GRA Y GRA Y RED RED.
6 MR-G50J-NZ ( ACTUAL WIRING DIAGRAM ) SSR4 SSR3 SSR5 FUSE1 X1SSR1 SSR2 F1 L N N L AC230V Power Plug 50Hz N/F BOARD CN1 1 3 3 1 CN12 8 2 3 4 1 4 3 2 1 Electric box 1 2 3 5 6 2 3 4 1 4 3 1 2 4 2 3 2 1 8 7 6 5 2 3 4 1 6 5 4 1 2 3 6 5 4 3 2 1 7 8 4 MOTOR DAMPER F.
7 OUTLINES AND DIMENSIONS 4 MR-G50J-NZ Unit : mm 2500 100 930 1809 1100 745 20 REQUIRED SPACE FOR INSTALLATION 20 699 247 338 77 324 324 318 313 400 351 392 440 337 363 329 262 249 249 534 600 67 782 .
8 REFRIGERANT CIRCUIT 5 Capillary tube Capillary tube Suction pipe Muffler Evaporator { 1.6 ✕ { 0.67 ✕ 2680(mm) { 1.8 ✕ { 0.63 ✕ 2680(mm) Dryer Cabinet pipe Three-way valve #150 Compressor Radiator plate Charge pipe (High pressure side) Charge pipe (Low pressure side) { 4 { 6.
9 TROUBLESHOOTING 6 MR-G50J-NZ (1) Function of normal operation 6-1 FUNCTION OF OPERA TION P ANEL ECO MODE switch : Min REF VEG FZR QCK REF CHILL SOFTF F Z R ICE ( STOP ) DEO L M H VEG QCK ICE REG ICE ECO CRL ICE VR D L M H MODE switch ● The switch functions to select the required compartment.
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.
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.
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 ● W ith the ice making compartment door left open, simultaneously press and for about 3 seconds until a “beep” sound is heard, and “ 88 ” blinks.
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 dif ferent from the error which was displayed at the service-call received.
14 MR-G50J-NZ (1) T roubleshooting with self-check This refrigerator has self-check feature to clarify and indicate where & what the trouble is. Y ou can perform operation checks and identify malfunction of electric or electronic parts. Error history is recorded and can be displayed by the refrigerator .
15 (3) Error display and trouble locating 1. Display details After conducting the self-check by referring to 6-2(1), error codes are displayed in the tempera- ture display section. ” e e ” and two digit error code flashes alternately as shown in the right figure.
16 *1 : The setting of ice making compartment will be displayed and blinks during or after ice making test operation. *2 : This operation is called the recovery operation: If the damper has not operated ever once during the compressor operation, make the damper operate when the compressor stops.
17 MR-G50J-NZ 6-3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD MR-G50J-NZ (1) Ice making cycle (2) Automatic ice maker circuit 6-4 AUT O ICE MAKER CN3A CN4D Control board CN9D CN8K CN7S Water pump motor LED.
18 Ice making test completes about 20 seconds later . (3) Operation by ice making test Press the switch for 5 seconds or more. (See “• Self check and error display method and opera- tion, 1 Ice making test operation” at page 14.) Ice stock detective lever detects the amount of ice.
19 MR-G50J-NZ 6-5 FLOWCHART OF TROUBLE CRITERION Excessive cooling Refrigerator compartment/ Slide chilled compartment [1] No cooling, poor cooling Set the temperatures to “Low”. No Keep the food away from the blowing part Y es Y es Set the temperatures to “High”.
20 Poor cooling Not cooling at all(In case any error codes doesn’t appear as shown in page 21,22 even though mode switch is pressed for 5 seconds) Freezer compartment [2] Check connector contact. Exchange the unit Replace the lead wire assembly (Lead wire of compressor) Abnormal Normal No Y es Set the temperature to “High”.
21 Inverter-related indication “Compressor does not operate” Error code Abnormality Possible cause Symptom T reatment e50 •Abnormal start- up •Abnormal synchronization •T rouble of overcurrent detection •When there is any trouble in the circuit which detects phase current of com- pressor .
22 Inverter-related indication “Compressor does not operate” Error code Abnormality Possible cause Symptom T reatment e56 (1) or (2) (1)Compres sor can not be activeted for more than 1.5 hours (2)Overcurr ent detection error occurred before the com- presssor is actived.
23 Plug and unplug the power cord to perform self-check on refrigerator fan motor . Is the lamp indicating abnormality? Contact failure of connector . Connect it proper- ly .
24 Excessive cooling V egetable compartment [6] poor cooling Set the temperature to “Low”. No Y es (Go to 1 or 2 ) Set the temperature to “High”. No Set the temperatures to “Middle” or “High”. Y es Y es e18 is indicated. Replace the Filter board.
25 only applies to versa compartment. Excessive cooling V ersa compartment/ Ice making compartment [7] No cooling; poor cooling Set the temper- ature to “Low”.
26 MR-G50J-NZ 6-6 TROUBLE CRITERION OF MAIN P ARTS Components/ Part Name Compressor Motor protector Check Method and Criterion Parts Mounted Position In the machine chamber at the rear side of the frame. Black Red White 1 1 2 2 Contact point Model ETI100E13DAH 45/159 (1620/4800rpm) 2.
27 Red Y ellow Blue White Components/ Part Name Check Method and Criterion Parts Mounted Position W ater pump motor Under the water tank holder in refrigerator com- partment. Measure the resistance with a tester . (Ambient temperature : Room temperature) Normal Abnormal (faulty) 16 ' (Approx.
28 Components/ Part Name Check Method and Criterion Parts Mounted Position V egetable compartment heater 2 W ater pipe heater In partition V/F . Under the water tank holder . Normal Abnormal (faulty) 6.6k ' (Approx.) Open circuit ( ∞ ' ) Measure the resistance with a tester .
29 Components/ Part Name Check Method and Criterion Parts Mounted Position Divider heater (I/S) Rotational heater board Ice making tray heater In partition I/S. In the rotational heater board of refrigerator compartment. Normal Abnormal (faulty) 6.6k ' (Approx.
30 Components/ Part Name Check Method and Criterion Parts Mounted Position Three-way valve In the machine chamber at the rear side of the frame. Normal Abnormal 54~56 ' (Gray [common] A/ A/ B/ B .
31 MR-G50J-NZ 6-7 TEST POINT DIAGRAM OF FIL TER BOARD Earth AC230V 230V Components/ Part Name Check Method and Criterion Parts Mounted Position V egetable com- partment LED (12V DC) LED for bacteria removal from water tank (12V DC) In the fan grille. On the external surface of the tank holder .
32 MR-G50J-NZ 6-8 TEST POINT DIAGRAM OF CONTROL BOARD } Compressor 5 W phase 3 V phase 1 U phase } Compulsory defrosting by short circuit CN4D 3 Defrost heater 1 Refrigerator compartment DC +5V (Inver.
33 NAMES OF THE P ARTS 7 Height adjustable shelf Three-way flexishelf W ater tank Small item case Free pocket (S) Bottle pocket (S) Free egg shelf (S) Ice making compartment is applicable to refrigerator and freezer compartment.
34 DISASSEMBL Y INSTRUCTIONS 8 Plug out before work!! Check the automatic ice-maker pressing ice making stop switch. In assembling & disassembling parts seven kinds of screws and rivets are used. Do not mistake to use them. MR-G50J-NZ OPERA TING PROCEDURE PHOTOS 1.
35 OPERA TING PROCEDURE PHOTOS (4)Remove rivet E , and pull out the mirror hinge on the lower left of the control panel to remove the connector . (See photo 5) (5)Remove rivet F (two rivets) in the upper left and right side, screw A (two screws) in the lower left and right side, and rivet F (two rivets) in the lower .
36 OPERA TING PROCEDURE PHOTOS (7)Remove rivet E (one rivet) to detach the cover (See photo 10) (8)Remove screw A (four screws) on inner wall and screw A (two screws) at the front. Detach three connectors and lift up the partition. (See photo 9) (9)T o detach connector cover , remove rivet E (two rivets each) and catches (two places).
37 OPERA TING PROCEDURE PHOTOS 4. Parts inside the refrigerator compartment ➔ Left rail of the slide compartment ➔ Parts inside the ice making compart- ment ➔ Ice making compartment door ➔ T ank holder ➔ Door switch (1)Remove the parts inside the refrigerator compartment.
38 OPERA TING PROCEDURE PHOT OS 6. Operation panel (1)Slide the operation panel in the direction of the arrows, unit it stops. (See figure 3.) (2)Pull out the operation panel as shown in a figure 4. (See figure 4.) 1 Please pull it out carefully because it is still wired to the body .
39 OPERA TING PROCEDURE 8. Compressor cover ➔ machine chamber fan motor (1)Remove 7 screws for compressor cover at the back of the refrigerator . Machine chamber fan motor (2)Remove screw one fizing screw of bellmouth and connector . Then pull out the bellmouth.
40 Door adjustment 1 If the adjustment bolt is not in contact with the floor , lower the bolt, and adjust it so that the caster is slightly above the floor . 2 When the refrigerator is installed in the corner of the room, the bolt of the refrigerator may sink into the floor and cause the refrigerator to tilt.
41 RoHS P ARTS LIST 9 ELECTRICAL P ARTS MR-G50J-SS-NZ No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Elect cover Control board Refrigerator compartment thermistor Ro.
42 DOOR P ARTS MR-G50J-SS-NZ Abbreviation R/ L I V Refrigerator compartment (Left) Ice making compartment Vegetable compartment F R/ R S Freezer compartment Refrigerator compartment (Right) Versa comp.
43 No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Hinge assembly (Left/ Upper) Outer door panel (R/L) Operation panel Door closer (Left) Door stopper .
44 BODY P ARTS MR-G50J-SS-NZ 2 3 4 5 6 7 8 17 18 20 23 24 25 26 27 28 9 30 37 38 10 1 1 T ank pipe Bearing Filter cover 21 W ater supply port cap 5 W ater pipe Hinge assembly (Left/ Lower) 12 13 Screw.
45 No. Part No. Part name Spec. or Drawing No. NZ MR-G50J 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Control panel assembly.
46 ACCESSOR Y AND UNIT P ARTS MR-G50J-SS-NZ Abbreviation F V S Freezer compartment Vegetable compartment Versa compartment 1 4 5 6 7 8 9 10 1 1 12 13 15 16 18 19 20 21 22 23 25 U washer 29 30 14 24 26 Rubber mount 27 28 Three-way valve V alve coil Part numbers that are circled are not shown in the figures.
47 OA090-2.qxp 06.7.20 9:57 AM Page 47.
HEAD OFFICE: TOKYO BLDG., 2-7-3,MARUNOUCHI,CHIYODA-KU, TOKYO100-8310,JAP AN C Copyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO.,L TD. Distributed in Jul. 2006. No. OA090 7 Made in Japan New publication, effective Jul. 2006 Specifications subject to change without notice.
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