Instruction/ maintenance manual of the product MR-420R-W-A Mitsubishi Electronics
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MITSUBISHI 2005 HOME REFRIGERATORS SERVICE MANUAL Models MR-385R-W-A MR-385R-ST-A MR-420R-W-A MR-420R-ST-A MR-455R-W-A MR-455R-ST-A CONTENTS NO.SM-RE-0502 1. SPECIFICATIONS.................................................... 2. OUTLINES AND DIMENSIONS.
1.1 SPECIFICATION MR-385R-A MR-385R-A(NZ) Power supply 230/240V 50Hz Total capacity (Gross (AS)) L Dimensions (HXWXD) mm. 1591 x 685 x 700 Cabinet Acrylic resin coated steel Food liner ABS resin Cabin.
MR-420R-A MR-420R-A(NZ) Power supply 230/240V 50Hz Total capacity (Gross (AS)) L Dimensions (HXWXD) mm. 1696 x 685 x 700 Cabinet Acrylic resin coated steel Food liner ABS resin Cabinet Foamed cyclopen.
MR-455R-A MR-455R-A(NZ) Power supply 230/240V 50Hz Total capacity (Gross (AS)) L Dimensions (HXWXD) mm. 1806 x 685 x 700 Cabinet Acrylic resin coated steel Food liner ABS resin Cabinet Foamed cyclopen.
1.2 ELECTRICAL PARTS SPECIFICATION MR-385R-A MR-385R-A(NZ) Model Power supply Compressor Rated input W Starting current A Running current A Winding resistance (T : 20 o C) PTC RELAY Model Motor protector Ambient temperature o C Time Sec. Current A Running capacitor Capillary tube mm.
MR-420R-A MR-420R-A(NZ) Model Power supply Compressor Rated input W Starting current A Running current A Winding resistance (T : 20 o C) PTC RELAY Model Motor protector Ambient temperature o C Time Sec. Current A Running capacitor Capillary tube mm. Dehydrant Molecular sieve g Refrigerant HFC.
MR-455R-A MR-455R-A(NZ) Model Power supply Compressor Rated input W Starting current A Running current A Winding resistance (T : 20 o C) PTC RELAY Model Motor protector Ambient temperature o C Time Sec. Current A Running capacitor Capillary tube mm. Dehydrant Molecular sieve g Refrigerant HFC.
Unit : mm MR-385R-A MR-385R-A(NZ) - 7 - 2 OUTLINES AND DIMENSIONS 20 685 20 1334 454 40 100 1591 700 REQUIRED SPACE FOR INSTALLATION 1950 PLUG CORD LENGTH 568 685 8 1591 942 73.
Unit : mm MR-420R-A MR-420R-A(NZ) - 8 - PLUG CORD LENGTH REQUIRED SPACE FOR INSTALLATION 20 685 20 1334 454 40 100 1696 700 1950 568 685 8 1696 1047 73.
Unit : mm MR-455R-A MR-455R-A(NZ) - 9 - PLUG CORD LENGTH REQUIRED SPACE FOR INSTALLATION 20 685 20 1334 454 40 100 1806 700 1950 568 685 8 1806 1157 73.
(SKELETON WIRING DIAGRAM) MR-385R-A MR-385R-A(NZ) MR-420R-A MR-420R-A(NZ) MR-455R-A MR-455R-A(NZ) (ACTUAL WIRING DIAGRAM) 3 WIRING DIAGRAM - 10 -.
MR-385R-A MR-420R-A MR-385R-A(NZ) MR-420R-A(NZ) - 11 - 4 REFRIGERANT CIRCUIT.
MR-455R-A MR-455R-A(NZ) - 12 -.
MR-385R-A MR-385R-A(NZ) MR-420R-A MR-420R-A(NZ) MR-455R-A MR-455R-A(NZ) - 13 - 5 NAME OF PARTS.
6.1 TROUBLE CRITERION OF MAIN PARTS MR-385R-A MR-420R-A MR-455R-A MR-385R-A(NZ) MR-420R-A(NZ) MR-455R-A(NZ) Compressor Measure the resistance with a tester. (Ambient temperature:Room temperature 15 o C ~ 25 o C) In the control panel of the Measure the resistance with a tester.
Fan grill of the freezer compartment. Measure the resistance with a tester. (Ambient temperature:Room temperature 15 o C ~ 25 o C) In the drip tray under the evaporator of the freezer compartment Measure the resistance with a tester.
6.2 HOW TO CHECK P.C BOARDS MR-385R-A MR-420R-A MR-455R-A MR-385R-A(NZ) MR-420R-A(NZ) MR-455R-A(NZ) (1) Precautions Unplug unit before checking If the controller P.C. board box is opened with the refrigerator inside cooled, dew will form on the control board, causing trouble such as poor insulation.
6.3 TEST POINT DIAGRAM OF MAIN CONTROL BOARD MR-385R-A MR-420R-A MR-455R-A MR-385R-A(NZ) MR-420R-A(NZ) MR-455R-A(NZ) - 17 -.
6.4 Malfunction Display and Checking points. 6.4.1 ) Malfunction display will use LED for show self-check 6.4.2 ) Fucntion display 6.4.3 ) Repairing and check point * A the case below , if the analysis result has malfunction over 2 points and will express in the list has more importance.
6.5 Importance detail of fault analysis 6.5.1 Flow chart of self - check 1) Self - check monitor circuit For show the fault condition of refrigerator and clarify point. Therefore, self - check monitor control is provided that are able to monitor No. of blinking condition with electric circuit and electric part .
MR-385R-A MR-420R-A MR-455R-A MR-385R-A(NZ) MR-420R-A(NZ) MR-455R-A(NZ) Unplug the power cord before prepairing and servicing 1. Remove parts insider the Freezer room (1) Photo 1st Remove Crystal shel.
2. Remove parts inside the refrigerator (1) Remove chilled case door and slide chilled case , remove crystal shelf of refrigerator room , remove the control panel (Photo 6) (2) Remove lamp cover R (Photo 6) (3) Remove screw and rivet , pull the control panel with to right refrigerator wall.
3. Removing the compressor (1) Detach the drain pan. Compressor (2) Collect gas from the charge pipe on the high pressure side. (3) After collecting gas, cut the charge pipe on the low pressure side. (4) Detach the welded section of the discharge pipe and suction pipe (5) Replace the compressor and the dryer at a time.
DOOR, BODY PARTS MR-385R-A MR-385R-A(NZ) MR-420R-A MR-420R-A(NZ) MR-455R-A MR-455R-A(NZ) - 23 - 8 PARTS LIST 1 2 3 4 5 6 10 9 11 7 8 1 2 4 5 10 9 11 8 7 6 3.
WS TWS TWS TWS TWS TWS T 1 KIEJ62131 FREEZER POCKET 222222222222 2 KIE401115 EGG RACK 222222222222 3 KIEJ62118 FREE POCKET 111111111111 4 KIEJ62159 ADJUST POCKET 222222223333 5 KIEJ62124 BOTTLE POCKET.
ACCESSORY PARTS MR-385R-A MR-385R-A(NZ) MR-420R-A MR-420R-A(NZ) MR-455R-A MR-455R-A(NZ) - 25 - 1 2 3 4 5 6 7 17 18 22 23 25 9 8 10 11 12 13 30 22 31 27 26 14 15 19 20 21 24 29 28 1 2 3 4 6 7 8 10 12 1.
WS TWS TWS TWS TWS TWS T 1 KIEH79662 BELL MOUTH 111111111111 2 KIEJ81473 LAMP COVER (F) 111111111111 3 KIEH79663 FAN GRILLE 111111111111 4 KIEH79450 ICE CORNER ASSY 111111111111 K I E H 7 9 6 6 5 1111.
ELECTRICIAL PARTS AND UNIT PARTS MR-385R-A MR-385R-A(NZ) MR-420R-A MR-420R-A(NZ) MR-455R-A MR-455R-A(NZ) - 27 - 1 2 4 3 5 6 9 7 10 8 11 13 12 14 15 16 15 17 18 20 19 27 21 22 23 24 26 25 28 30 29 31.
WS TWS TWS T WS TWS TWS T 1 KIEH79336 THERMAL FUSE ( DEF ) 111111111111 2 KIEH85995 EVAPORATOR 111111111111 3 KIEH79537 HEATER ROOF 111111111111 4 KIEHM2392 DEFROST HEATER ASSY 240V, 150W NOT DEODORIZ.
PACKING PART MR-385R-A MR-385R-A(NZ) MR-420R-A MR-420R-A(NZ) MR-455R-A MR-455R-A(NZ) - 29 - NO STEP ON 1 2 3 L R 1 C.F.B BOX ASSY 8 C.F.B TOP COVER 5 SIDE CUSHION ASSY 4 PACKING COVER 7 C.
WS TWS TWS TWS TWS TWS T KIEJ81970 1 KIEJ82970 1 KIEJ83970 1 KIEJ84970 1 KIEJ85970 1 KIEJ86970 1 KIEJL4970 1 KIEJL5970 1 KIEJL6970 1 KIEJL7970 1 KIEJL8970 1 KIEJL9970 1 2 KIEJ81979 TOP CUSHION 1111111.
MITSUBISHI ELECTRIC CORPORATATION HEAD OFFICE : MITSUBISHI DENKI BLDG., MARUNOUCHI,TOKYO 100. TELEX : J24532 CABLE MELCO TOKYO Distributed by BLACK DIAMOND TECHNOLOGIES LIMITED (BDT) Wellington Office.
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