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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 each phase)

Open (

∞

'

) or

short circuit

(0

'

)

A 5

A 2

B

1

COM

3

B

4

1

2

3

4

5

B

A COM B

A

Check the operation by following either (1) or (2) below. When a popping sound is
heard 1 to 25 times, it is considered that the valve is operating normally. The sound
is clearly heard around the back of the product.
(1) Reset the power supply. Check the operation right after this.
(2) Ice making test. Check the operation right after the test is over.

Model

NSCE001DC1

Check the operation of three-way valve

Thermistor

Defrost

thermistor
Evaporator

Ice making
thermistor,
Versa
compartment
thermistor,
Vegetable
compartment
thermistor
and Freezer
compartment
thermistor
In the fan grille
of each
compartments.

Ice making
tray
thermistor
In the ice
making
compartment.

Outside air
thermistor
In the operation
P.C. board.

Measure the resistance with a tester according to the following graph.
(Thermistor resistance values against temperature)

•Resistance measured under the ambient temperature from -50

:

to +50

:

1. 200

'

to 500k

'

·····················Normal

2. Out of the above range ·········Abnormal

Thermistor Check Procedure

•Thermistor resistance value will vary

with the change of temperature.

•Take the temperature around the

thermistor, and then measure thermistor

resistance using a tester.
The relation between resistance and
temperature is as shown on the left side.

0

0

5

10

15

20

25

30

35

(k

'

)

10

20

30

(

;

)

-10

-20

Thermistor resistance

values against temperature

Outside air thermistor
(In the operation
P.C. board)

Resistance values

Temperature

Inner
thermistor

Refrigerator

compartment

Slide chilled

compartment

Ice making tray

thermistor

Freezer

compartment

Defrosting

Versa

compartment

Ice making

compartment

Vegetable

compartment

Troubleshooting with self-check

(1)If the self-check indicates the abnor-
mality of thermistor when the power is
turned on, measure the resistance of the
thermistor.

•If there is a short circuit in the thermis-

tor, there may be a defect in the contact
of the connector or the element of the
thermistor.
(2)When the self-check indicates the
abnormality of thermistor a few seconds
after the power is turned on, check the
contact of the connector.

OA090-1.qxp 06.7.20 9:55 AM Page 30

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Содержание MR-G50J-SS-NZ

Страница 1: ...CHECK 14 6 3 BLOCK DIAGRAM OF PRINTED CIRCUIT BOARD 17 6 4 AUTO ICE MAKER 17 6 5 FLOWCHART OF TROUBLE CRITERION 19 6 6 TROUBLE CRITERION OF MAIN PARTS 26 6 7 TEST POINT DIAGRAM OF FILTER BOARD 31 6 8 TEST POINT DIAGRAM OF CONTROL BOARD 32 7 NAMES OF THE PARTS 33 8 DISASSEMBLY INSTRUCTIONS 34 9 RoHS PARTS LIST 41 HOME REFRIGERATOR Model name indication Inside a door No OA090 NOTE RoHS compliant pro...

Страница 2: ...otosynthesis and stimulates polyphenol increase are used in the vegetable compartment New vegetable compartment 2002 MITSUBISHI refrigerator MR S46B Amount of polyphenol at the time of purchase The lighting of LED is not controlled by opening or closing of the vegetable compartment door Thus the LED may not be lighted when the door is opened 2 Auto Door Shut function installed enable doors to be s...

Страница 3: ...tem Refrigerator compartment room light Power supply Total capacity Dimensions H x W x D Cabinet Food liner Cabinet Freezer door Refrigerator door Freezer Refrigerator Insulation Cooling system Capillary tube Desiccant molecular sieve Refrigerant filling capacity R600a Refrigerating oil Model Free pocket L Free pocket S Bottle pocket S Bottle pocket L Tube stand Height adjustable shelf Three way f...

Страница 4: ...19 1620 4800rps 9 27 MM3 71CCV 25 16 or less 17 0 NSCE001DC1 4 phase stepping motor drive voltage DC12V 325 230V 163W Control board Microcomputer Thermistor 14 1 5 70 2 Not Equipped UDQM002B3 DC brushless motor 2 4 12V DC 1520 12V DC 10P UDQM004B3 DC brushless motor 1 12V DC 1200 12V DC 10P 230V 8 0W 230V 8 0W 230V 5 5W 230V 9 0W 230V 9 0W 220V 10 0W 11 6 Defrosting timer Three way valve Temperatu...

Страница 5: ...E LIGHT GREEN PINK BRIGHT YELLOW YELLOW BROWN F THERMISTOR C THERMISTOR R THERMISTOR WHITE WHITE ORANGE WHITE WHITE ICE TRAY THERMISTOR WHITE WHITE WHITE WHITE WHITE WHITE SKY BLUE WHITE WHITE WHITE WHITE V THERMISTOR WHITE WHITE DEF THERMISTOR YELLOW BLUE ORANGE BLACK VIOLET YELLOW RED BLUE SKY BLUE RED WHITE SKY BLUE BLACK GRAY PINK PINK LIGHT BROWN YELLOW GREEN BROWN RED YELLOW WHITE BLUE BLUE ...

Страница 6: ...lue Sky blue Sky blue Sky blue Blue Blue Light green Light green Sky blue Yellow Yellow Red Red Rotational heater board Violet Light green Orange Red White Light green Yellow green Orange Light green Bright yellow Blue White Red Light green Orange Sky blue Bright yellow White Yellow green Red Gray Gray Gray Gray Red Yellow White Brown Violet Blue Gray Red Sky blue Ice compartment Red Violet Violet...

Страница 7: ... 691 Pitch between the adjust bolts 669 Pitch between the rear wheels 162 76 76 275 284 456 5 284 456 699 124 162 124 142 312 284 99 168 101 123 124 720 52 607 10 307 37 332 176 41 10 72 Display 642 654 374 655 196 203 203 367 610 612 601 654 607 H W 782 R L 284 214 S 456 361 V 745 214 I 284 R L Refrigerator compartment Left R R Refrigerator compartment Right I Ice making compartment S Select comp...

Страница 8: ...ry 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 35 MR G50J NZ ...

Страница 9: ... be released in the same way 3 Ice making stop Press to select ice making compartment Select with switch ICE STOP 4 ON OFF of LED for bacteria removal from water tank to select vegetable compartment Press switch and switch for 3 seconds at the same time Approx 0 to 6 Approx 0 to 6 Approx 2 to 2 Approx 9 to 5 Approx 18 to 16 Approx 0 to 6 Approx 21 to 17 Approx 21 to 17 Approx 3 to 9 Approx 21 to 1...

Страница 10: ...s switch to select refrigerator compartment freezer compartment or versa compartment Simultaneously press and for about 3 seconds until a beep sound is heard The indication changes as show in the right 2 2 Fine adjustments of temperature Temperature adjustment is made by approximately 0 3 0 5 by pressing and it is indicated with 15 steps bars on the panel The temperature displayed on the panel how...

Страница 11: ... the following modes Child lock Demonstration Cooking timer Thermistor temperature check and error code display 1 1 Setting With the door of ice making compartment left open simultaneously press and for about 3 seconds until a beep sound is heard and 88 blinks Press with the door left open 2 2 Changing the rotational speed After the setting is complete press and the rotational speed of compressor ...

Страница 12: ...setting to the damper A beep sound is heard if the setting has been conveyed After the setting is conveyed the damper starts operating and the display blinks It stops blinking and starts to light when the operation stops automatically Please note that the setting cannot be changed when the damper is operating 4 4 Release With the door of ice making compartment left open simultaneously press and fo...

Страница 13: ...s function For the prevention of the compressor avoid releasing it by plugging and unplugging the power cord Door Buzzer System Door buzzer has been installed so that one will not forget to close the door When the door of refrigerator compartment or ice making compartment is left open for a minute the buzzer starts ringing and informs that the door needs to be closed The buzzer will stop ringing a...

Страница 14: ...efore inserting the cord once it s unplugged if the cord is plugged in within 10 minutes error may be displayed B Unplug the power cord from outlet Repair replace defective part s according to LCD indication Self check is finished Set the error display mode Reset the error history Refer to 6 1 8 Perform self check procedures B through C Perform error history mode No No Was the error which was disp...

Страница 15: ...trol board 6 pin relay connector 2 Check the resistance of thermistor Replace e 13 Trouble of refrigerator thermistor 1 Connector CN7S on control board 4 pin relay connector 2 Check the resistance of thermistor 1 Connector CN7S on control board 6 pin relay connector Replace Synchronize the open close status of R damper with that of C damper e 14 Trouble of chilled compart ment thermistor 2 Check t...

Страница 16: ...ipe 1 Connector CN4D on control board Refrigerator fan motor 6 pin relay connector 2 Check refrigerator fan motor operation Replace e 31 Trouble of refrig erator fan motor When motor doesn t rotate even though power is on When the waveform which indicates the rota tion times of motor can not be detected 3 minutes later the refrigerator fan motor is reactivated to be checked Until the fan motor get...

Страница 17: ... ture Neuro fuzzy Control on timers Operation control of the parts such as fan motor or heater etc equipped inside outside Inverter control circuit of compressor Inverter control of compressor Inverter drive power module Detection of bus bar voltage Parts outside inside of Refrigerator For 325V system Compressor For 230V system Defrost heater Vegetable compartment heater 1 2 Rotational heater boar...

Страница 18: ...at sides A and B fit flush to each other Twist the aluminum pipe to replace it 5 Troubleshooting for automatic ice maker Trouble with ice making Water or ice is on the ice tray The ice maker gear box may be defective cooling may be poor or ice cubes may be full in the server 3 Check if the temperature of the freezer com partment is cool enough It takes longer to make ice during summer time or if t...

Страница 19: ...t slide chilled compartment Motor damper is combined with control panel assembly Is the motor damper for refrigerator compartment slide compartment covered with frost Chilled compartment thermistor abnormal Check the chilled compartment thermistor Jumper to be cut JP1 1 lowers 1 lowers 1 highers 1 lowers 2 lowers JP2 JP3 JP6 JP4 Temperature change Freezer compartment Refrigerator compartment Slide...

Страница 20: ...rd Yes Detach each connector CN2A on control board check the continuity between terminals 5 and 7 respectively Check if there is a short or open circuit in the motor protector Detach connector CN50G on con trol board and check the resis tance respectively between termi nals of 1 3 and 5 approx 9 3 Check the error display of self check after turning on and off the power supply wWith all the connect...

Страница 21: ...perly Abno rmal Replace the filter board Yes Normal Replace the control board No Trouble of inverter software reset function When the inverter driving software malfunctions Unplug the power cord and then plug it in 10 minutes No error code display Explanation to customer e53 Compressor motor gets locked Defective circuit on control board Defective contact of CN50G on control board Defective contac...

Страница 22: ...again If the control board has been replaced e56 won t be dis played even though the couse of trouble is still not elimi nated In such a case perform the ice making test opera tion to check what the error is At the same time also con firm that the compressor is operating for more than 3 min utes and each compartment is getting cooled start Connector CN50G on the control board is properly connected...

Страница 23: ... replace the control board Running No continuity Connect the connectors properly Continuity detected Replace refrigerator fan motor Control board CN7S CN4D 8 pin connector 2 pin connector Refrigerator compartment right and left Ice making compartment door switch Lead Switch board Refrigerator fan motor 6 pin connector 4 pin connector M 6 8 5 3 6 8 5 3 1 2 4 3 1 2 4 3 4 3 2 1 4 3 2 1 8 7 4 3 4 3 8 ...

Страница 24: ...etween connector CN2A 5 Gray and CN3A 7 Yellow green on control board Measure the voltage for over 10 seconds When an analog tester detects AC 230V consider the control board normal 230V is outputted on every 10 seconds Replace the control board No Yes Check if doors are hermetically closed Follow the refrigerator slide chilled compartment flowchart on page 19 OK Explain proper usage to customer 2...

Страница 25: ...or compartment Versa compart ment Ice making compart ment Attach a magnet bar here w1 Defective thermistor Replace the versa compartment thermistor Check the versa compartment thermistor Dip the versa compartment thermistor into the ice water 0 and disconnect 6 pin connector for fan grille at the back of versa compartment Measure the resistance between terminal 3 white and 6 white Resistance at 0 ...

Страница 26: ...rame Refrigerator fan motor In the fan grille of the freezer compartment Model UDQM002B3 DC brushless 10 150 Mixed flow fan Number of pole Diameter Normal Abnormal faulty Between 1 and 4 GND and IC Power About 12 k Between 1 and 4 open circuit Between 3 and 4 short circuit 0 Measure the resistance with a tester Ambient temperature Room temperature Between 3 and 4 Power and IC Power 1 1 2 3 4 2 3 4...

Страница 27: ...easure the winding resistance Normal Abnormal faulty 415 Approx Open or short circuit 0 Winding Blue White Red Yellow Red Yellow Blue White Motor damper for ice making compartment versa compart ment In the fan grille for freezer compartment Connector is at the back of versa compartment Measure the winding resistance Normal Abnormal faulty 415 Approx Open or short circuit 0 Winding Blue White Red Y...

Страница 28: ...tance with a tester Ambient temperature Room temperature Operation method The heater is turned on when vegetable compartment thermistor has reached a lower temperature than the set temperature for vegetable compartment Normal Abnormal faulty 5 9k Approx Open circuit Measure the resistance with a tester Ambient temperature Room temperature Operation method The heater is turned on when vegetable com...

Страница 29: ...or stops the heater is suspended for the first 20 minutes and then reactivated Normal Abnormal faulty 9 6k Approx Open circuit Measure the resistance with a tester Ambient temperature Room temperature Operation method While compressor is operating the heater is turned on When compressor stops the heater is suspended for the first 20 minutes and then reactivated Lower part of ice tray Normal Abnorm...

Страница 30: ...h Thermistor resistance values against temperature Resistance measured under the ambient temperature from 50 to 50 1 200 to 500k Normal 2 Out of the above range Abnormal Thermistor Check Procedure Thermistor resistance value will vary with the change of temperature Take the temperature around the thermistor and then measure thermistor resistance using a tester The relation between resistance and t...

Страница 31: ...ion The pointer of the tester equipped with a diode range shakes when measuring the resistance between 4 pin connector No 3 and No 4 Use a tester equipped with a diode range for judgement Timing in making contact Electricity is supllied all the time Abnormal condition The pointer of the tester equipped with a diode range does not shake when measuring the resistance between 4 pin connector No 3 and...

Страница 32: ...Ice maker position switch 6 Water pump 7 Ice maker reverse 8 Ice maker rotation Electromagnetic three way valve Damper for refrigerator compartment slide compartment Damper for ice making compartment versa compartment 1 2 Vegetable compartment LED 3 Door switch input 4 Freezer compartment thermistor 5 Ice making compartment thermistor 6 Vegetable compartment thermistor 7 Versa compartment thermist...

Страница 33: ...is set to refrigerator vegetable mode at factory shipping Refrigerator compartment Operation panel Sliding case Vegetable stand Vegetable case 2L plastic bottles can be put into the case Freezing case upper Freezing case lower Partition pocket Alumi num tray Versa case Sound proof mat Reduces the sound of ice dropping into the storage corner Do not remove the mat Ice tray Can not be removed V LED ...

Страница 34: ... item case and the slide chilled case 2Pull out the ceiling by unhooking the front catches on both sides 3Remove the slide chilled case lid 4Remove the vertical partition 2 Slide the right rail out toward you See photo 2 3 Remove screw G one screws and slide the left rail out toward you See photo 3 1Push up the lower catch and pull the room light cover toward you 2Detach two upper catches to take ...

Страница 35: ... Fan grille Defrost heater Drip tray DEF thermistor 1 Remove interior parts out of ice making compartment versa compartment vegetable compartment and freezer compartment 2 To detach them pull out the doors of ice making compartment versa compartment vegetable compartment and freezer compartment 3 Remove rivet E one rivet partition cover and a connector Remove screw C two screws at the front side o...

Страница 36: ...m tape first See figure 1 13 Cut the binder and disconnect the connector to remove the DEF thermistor and the thermal fuse See photo 11 Caution on assembly Attach defrost heater in place and loosen the lead wires in order to prevent water from entering the glass tube Attach the drip tray securely to the lower parts Attach the DEF thermistor in place If they are attached out of place thermal charac...

Страница 37: ... the bottom side of the holder softly to detach it See photo 12 8 Lift up the tank holder from the refrigerator compartment to remove it Note 1Put the lead wires in place so that they do not get caught in water supply channel 2Put the tank holder in place so that the water does not leak from it 9 Insert a minus screwdriver between switch and body to remove the door switch 5 Parts inside the versa ...

Страница 38: ... board See photo 14 2 Remove a screw on the wiring cover and disconnect the connector in the cover See photo 14 Caution on assembly When raising the rotational heater board replace the rotational heater board as it was if the refrigerator door is closed with the board raised the rotational heater board may hit against the left door of refrigerator and be damaged Though heater preventing dewdrop ma...

Страница 39: ... w w w w w Compressor Heat radiation pipe of flat face flange Heat radiation pipe of left side Machine chamber fan motor Charge pipe Low pressor side Charge pipe High pressor side Dryer Three way valve Keep the clearance between each parts for 10 to 15mm W W Heat radiation pipe at back side Heat radiation pipe at right side W Bell mouth Figure 7 Attach U washer as the figure shown below W Note 1 F...

Страница 40: ...ce between the ice making compartment and versa compartment doors Misaligned versa compartment door 5 Misaligned ice making compartment door 6 1 Place spacer set under the outer roller of the tilted door ice making compartment door in the above illustration to adjust position 2 Place spacer set under the inner roller of the tilted door ice making compartment door in the above illustration to adjus...

Страница 41: ...T1W 13W 339 T1W 06W 312 T1W 06W 366 T1W 01W 360 M20 KA3 313 T1W 13W 395 M20 KA2 313 M20 KA7 313 M20 KA0 311 T1W 06W 316 M20 KA1 313 T1W 01W 469 M20 KA0 327 T1W 01W 316 M20 KW0 656 M20 KA0 325 T1W 02W 339 T1W 06W 338 T1W 06W 388 T1W 06W 537 T1W 13W 392 M20 KG0 536 M20 KA0 340 M20 KL0 341 M20 KW1 321 M20 KW0 329 T1W 01W 304 M20 KG0 304 240V 10W In the automatic ice maker UDQM004B3 With operation P C...

Страница 42: ...getable compartment F R R S Freezer compartment Refrigerator compartment Right Versa compartment 1 5 6 11 21 23 24 25 27 28 9 7 8 14 20 29 2 4 Door closer Right Door stopper Right 26 Hinge assembly Left Upper Hinge assembly Right Upper 12 13 16 17 19 22 30 31 Door closer Left Door stopper Left 10 3 15 18 ...

Страница 43: ... 1 1 1 1 1 2 1 1 1 4 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 Part No Part name Spec or Drawing No MR G50J NZ T1W 01W 701 T1W 13W 009 T1W 07W 852 M20 KL1 026 M20 KW4 747 T1W 13W 004 T1W 13W 002 T1W 13W 001 M20 KA1 701 T1W 13W 000 M20 KE5 026 M20 KW8 745 T1W 13W 006 M20 KG0 120 M20 KG1 110 M20 KG0 124 M20 KG0 139 M20 KL0 930 M20 KG0 113 M20 KG1 155 M20 KG0 151 M20 KG0 157 T1W 06W 050 M20 KG2 110 M20 KG0 118...

Страница 44: ...37 38 10 11 Tank pipe Bearing Filter cover 21 Water supply port cap 5 Water pipe Hinge assembly Left Lower 12 13 Screw label 14 15 Light type bacteria removing filter 5 13 36 34 35 Roller assembly Screw label Guide 19 32 33 Water pump Hinge assembly Right Lower 1 31 16 22 29 ...

Страница 45: ...442 T1W 01W 802 M20 KL0 803 M20 KG1 846 M20 KG1 798 T1W 06W 846 T1W 07W 730 M20 KG0 712 M20 KW0 805 M20 KL0 442 T1W 06W 107 M20 KG0 798 W1 W2 Three types One cover each W3 With ice making tray heater Combined with photocatalyst W4 With heater board A set for both sides With vegetable compartment heater 2 For difference adjustment of the I door and the S door In the automatic ice maker Compartment ...

Страница 46: ... tray S Versa case Vegetable stand Vegetable case Drain pan Evaporator assembly Compressor U washer Rubber mount Dryer pipe set Valve coil Three way valve Radiator plate assembly Packing Radiator plate SS 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Part No Part name Spec or Drawing No MR G50J NZ M20 KG0 427 M20 KG1 428 M20 KG1 423 M20 KG1 427 M20 KG1 428 M20 KL0 122 M20 KL1 115 M...

Страница 47: ...47 ...

Страница 48: ... MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN CCopyright 2006 MITSUBISHI ELECTRIC ENGINEERING CO LTD 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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