MITSUBISHI
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
MR-385R-W-A(NZ) MR-385R-ST-A(NZ) MR-420R-W-A(NZ) MR-420R-ST-A(NZ) MR-455R-W-A(NZ) MR-455R-ST-A(NZ)
2005
NO.SM-RE-0502
CONTENTS |
|
1. SPECIFICATIONS.................................................... |
1 |
2. OUTLINES AND DIMENSIONS.................................. |
7 |
3. WIRING DIAGRAM.................................................... |
10 |
4. REFRIGERANT CIRCUIT........................................... |
11 |
5. NAME OF THE PARTS........................................... |
13 |
6. TROUBLE SHOOTING.............................................. |
14 |
6.1 TROUBLE CRITERION OF MAIN PARTS....... |
14 |
6.2 HOW TO CHECK P.C.BOARDS...................... |
16 |
6.3 TEST POINT DIAGRAM OF |
|
MAIN CONTROL BOARD.............................. |
17 |
6.4 MULFUNCTION DISPLAY AND CHECKING |
|
POINT........................................................... |
18 |
6.5 IMPORTANCE DETAIL OF FAULT ANALYSIS. |
19 |
7. DISASSEMBLY INSTRUCTIONS................................. |
20 |
8. PARTS LIST............................................................... |
23 |
A……......Australia
A(NZ) .....New Zealand
1SPECIFICATION
1.1SPECIFICATION
MR-385R-A
MR-385R-A(NZ)
Power supply |
|
|
|
|
230/240V 50Hz |
Total capacity (Gross (AS)) |
|
L |
385 (F : 130 R : 255) |
||
Dimensions (HXWXD) |
|
mm. |
1591 x 685 x 700 |
||
Cabinet |
|
|
|
|
Acrylic resin coated steel |
Food liner |
|
|
|
|
ABS resin |
|
Cabinet |
|
|
Foamed cyclopenthane |
|
Insulation |
Freezer door |
|
|
Foamed cyclopenthane |
|
|
Refrigerator door |
|
|
Foamed cyclopenthane |
|
Cooling system |
Freezer |
|
|
Forced air convection |
|
|
Refrigerator |
|
|
Surround cooling,multi air flow,front air flow |
|
Evaporator |
|
|
|
|
Fin and tube type |
Condenser |
|
|
|
|
Concealed type |
Defrost system |
|
|
|
|
Automatic (Heater defrost) |
Drain |
|
|
|
|
Automatic (drainage) |
Temperature control system |
|
|
Automatic control |
||
Refrigerator room light |
|
|
240V 15W (E12) |
||
|
|
Ice tray |
|
|
1 pc. |
|
|
Ice box |
|
|
1 pc. |
|
|
Freezer pocket |
|
|
2 pcs. |
|
|
Slide chilled case |
|
|
1 pc. |
|
|
Crystal shelf (F) |
|
|
1 pc. |
|
|
Crystal shelf (R) |
|
|
3 pcs. |
Accessories |
|
Free pocket |
|
|
1 pc. |
|
|
Egg rack |
|
|
2 pcs. |
|
|
Adjust pocket |
|
|
2 pcs. |
|
|
Bottle pocket |
|
|
2 pcs. |
|
|
Vegetable case |
|
|
1 pc. |
|
|
Tray V |
|
|
1 pc. |
|
|
Drain pan |
|
|
1 pc. |
|
|
Bottle stopper |
|
|
1 pc. |
Weight |
|
Unit |
|
kg |
65 |
|
|
Shipping |
|
kg |
72 |
- 1 -
MR-420R-A
MR-420R-A(NZ)
Power supply |
|
|
|
|
230/240V 50Hz |
Total capacity (Gross (AS)) |
|
L |
420 (F : 130 R : 290) |
||
Dimensions (HXWXD) |
|
mm. |
1696 x 685 x 700 |
||
Cabinet |
|
|
|
|
Acrylic resin coated steel |
Food liner |
|
|
|
|
ABS resin |
|
Cabinet |
|
|
Foamed cyclopenthane |
|
Insulation |
Freezer door |
|
|
Foamed cyclopenthane |
|
|
Refrigerator door |
|
|
Foamed cyclopenthane |
|
Cooling system |
Freezer |
|
|
Forced air convection |
|
|
Refrigerator |
|
|
Surround cooling,multi air flow,front air flow |
|
Evaporator |
|
|
|
|
Fin and tube type |
Condenser |
|
|
|
|
Concealed type |
Defrost system |
|
|
|
|
Automatic (Heater defrost) |
Drain |
|
|
|
|
Automatic (drainage) |
Temperature control system |
|
|
Automatic control |
||
Refrigerator room light |
|
|
240V 15W (E12) |
||
|
|
Ice tray |
|
|
1 pc. |
|
|
Ice box |
|
|
1 pc. |
|
|
Freezer pocket |
|
|
2 pcs. |
|
|
Slide chilled case |
|
|
1 pc. |
|
|
Crystal shelf (F) |
|
|
1 pc. |
|
|
Crystal shelf (R) |
|
|
3 pcs. |
Accessories |
|
Free pocket |
|
|
1 pc. |
|
|
Egg rack |
|
|
2 pcs. |
|
|
Adjust pocket |
|
|
2 pcs. |
|
|
Bottle pocket |
|
|
2 pcs. |
|
|
Vegetable case |
|
|
1 pc. |
|
|
Tray V |
|
|
1 pc. |
|
|
Drain pan |
|
|
1 pc. |
|
|
Bottle stopper |
|
|
1 pc. |
Weight |
|
Unit |
|
kg |
69 |
|
|
Shipping |
|
kg |
73 |
- 2 -
MR-455R-A
MR-455R-A(NZ)
Power supply |
|
|
|
|
230/240V 50Hz |
Total capacity (Gross (AS)) |
|
L |
454 (F : 130 R : 324) |
||
Dimensions (HXWXD) |
|
mm. |
1806 x 685 x 700 |
||
Cabinet |
|
|
|
|
Acrylic resin coated steel |
Food liner |
|
|
|
|
ABS resin |
|
Cabinet |
|
|
Foamed cyclopenthane |
|
Insulation |
Freezer door |
|
|
Foamed cyclopenthane |
|
|
Refrigerator door |
|
|
Foamed cyclopenthane |
|
Cooling system |
Freezer |
|
|
Forced air convection |
|
|
Refrigerator |
|
|
Surround cooling,multi air flow,front air flow |
|
Evaporator |
|
|
|
|
Fin and tube type |
Condenser |
|
|
|
|
Concealed type |
Defrost system |
|
|
|
|
Automatic (Heater defrost) |
Drain |
|
|
|
|
Automatic (drainage) |
Temperature control system |
|
|
Automatic control |
||
Refrigerator room light |
|
|
240V 15W (E12) |
||
|
|
Ice tray |
|
|
2 pcs. |
|
|
Ice box |
|
|
1 pc. |
|
|
Freezer pocket |
|
|
2 pcs. |
|
|
Slide chilled case |
|
|
1 pc. |
|
|
Crystal shelf (F) |
|
|
1 pc. |
|
|
Crystal shelf (R) |
|
|
4 pcs. |
Accessories |
|
Free pocket |
|
|
1 pc. |
|
|
Egg rack |
|
|
2 pcs. |
|
|
Adjust pocket |
|
|
3 pcs. |
|
|
Bottle pocket |
|
|
2 pcs. |
|
|
Vegetable case |
|
|
1 pc. |
|
|
Tray V |
|
|
1 pc. |
|
|
Drain pan |
|
|
1 pc. |
|
|
Bottle stopper |
|
|
1 pc. |
Weight |
|
Unit |
|
kg |
73 |
|
|
Shipping |
|
kg |
79 |
- 3 -
1.2 ELECTRICAL PARTS SPECIFICATION
MR-385R-A
MR-385R-A(NZ)
|
Model |
|
|
|
|
|
|
DG57C96RAW5 |
|
||
|
Power supply |
|
|
|
|
|
|
220/240V 50Hz |
|
||
Compressor |
|
|
|
|
|
|
|
|
|
||
Rated input |
|
|
W |
|
|
106/108(220/240V 50Hz) |
|||||
|
|
|
|
|
|
|
|
||||
|
Starting current |
|
|
A |
|
|
7.38/8.01(220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
||||
|
Running current |
|
|
A |
|
|
0.57/0.55(220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
|
|
||
|
Winding resistance (T : 20 oC) |
|
|
|
|
|
18.2 Ω(Main) / 17.7 Ω(Aux) |
||||
PTC RELAY |
|
|
|
|
|
|
|
PTH7M330MD2 |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
Model |
|
|
|
|
|
|
5TM181NHBYY |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Motor protector |
Ambient temperature |
|
|
oC |
|
|
|
25 |
|
|
|
|
Time |
|
|
Sec. |
|
|
|
|
16 MAX |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Current |
|
|
A |
|
|
|
5.4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Running capacitor |
|
|
|
|
|
|
|
4 F 400VAC |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Capillary tube |
|
|
|
mm. |
|
|
1.8 X 0.7 X 2350 |
|
|||
|
|
|
|
|
|
|
|
|
|
||
Dehydrant Molecular sieve |
|
|
g |
|
|
|
10 |
|
|
||
|
|
|
|
|
|
|
|
|
|
||
Refrigerant HFC. 134a |
|
|
g |
|
|
|
145 |
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Defrosting control |
Defrosting timer |
|
|
|
|
|
|
Control board |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
Defrost finish |
|
|
oC |
|
|
|
Thermister 14 + 1.5 |
|
||
|
Thermal fuse |
|
|
oC |
|
|
|
73 |
|
|
|
Heater |
Defrost heater |
|
|
|
|
|
|
384 Ω (240V 150W) |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Deodorition |
|
|
|
|
|
|
|
|
Filter |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Model |
|
|
|
|
|
|
UDVH15MA1H |
|
||
|
Type |
|
|
|
|
|
|
Single phase |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Fan motor |
Number of poles |
|
|
|
|
|
|
|
2p |
|
|
|
Input |
|
|
W |
|
|
Less than 10.2/12 (220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
||||
|
Revolution |
|
|
r.p.m |
|
|
2520 + 200 / 2580+200 (220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Model |
|
|
|
|
Freezer |
|
Refrigerator |
(MM1-6177) |
||
|
Dial position |
|
|
ON |
|
OFF |
|
OPEN |
|
SHUT |
|
Temperature control |
Warmer |
oC |
|
-13.7 |
|
-19.0 |
|
- |
|
3.5 |
|
|
Normal |
oC |
|
-16.9 |
|
-22.9 |
|
MAX 5.0 |
|
-1.0 + 1.5 |
|
|
Colder |
oC |
|
-20.4 |
|
-27.5 |
|
- |
|
-12.5 |
- 4 -
MR-420R-A
MR-420R-A(NZ)
|
Model |
|
|
|
|
|
|
DG66C11RAW5 |
|
||
|
Power supply |
|
|
|
|
|
|
220/240V 50Hz |
|
||
Compressor |
|
|
|
|
|
|
|
|
|
||
Rated input |
|
|
W |
|
|
117/118(220/240V 50Hz) |
|||||
|
|
|
|
|
|
|
|
||||
|
Starting current |
|
|
A |
|
|
8.05/8.83(220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
||||
|
Running current |
|
|
A |
|
|
0.71/0.66(220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
|
|
||
|
Winding resistance (T : 20 oC) |
|
|
|
|
|
15.4 Ω(Main) / 17.7 Ω(Aux) |
||||
PTC RELAY |
|
|
|
|
|
|
|
PTH7M330MD2 |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
Model |
|
|
|
|
|
|
5TM205NHBYY |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Motor protector |
Ambient temperature |
|
|
oC |
|
|
|
25 |
|
|
|
|
Time |
|
|
Sec. |
|
|
|
|
16 MAX |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Current |
|
|
A |
|
|
|
6.0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Running capacitor |
|
|
|
|
|
|
|
4 F 400VAC |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Capillary tube |
|
|
|
mm. |
|
|
1.8 X 0.7 X 2350 |
|
|||
|
|
|
|
|
|
|
|
|
|
||
Dehydrant Molecular sieve |
|
|
g |
|
|
|
10 |
|
|
||
|
|
|
|
|
|
|
|
|
|
||
Refrigerant HFC. 134a |
|
|
g |
|
|
|
145 |
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Defrosting control |
Defrosting timer |
|
|
|
|
|
|
Control board |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
Defrost finish |
|
|
oC |
|
|
|
Thermister 14 + 1.5 |
|
||
|
Thermal fuse |
|
|
oC |
|
|
|
73 |
|
|
|
Heater |
Defrost heater |
|
|
|
|
|
|
384 Ω (240V 150W) |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Deodorition |
|
|
|
|
|
|
|
|
Filter |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Model |
|
|
|
|
|
|
UDVH15MA1H |
|
||
|
Type |
|
|
|
|
|
|
Single phase |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Fan motor |
Number of poles |
|
|
|
|
|
|
|
2p |
|
|
|
Input |
|
|
W |
|
|
Less than 10.2/12 (220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
||||
|
Revolution |
|
|
r.p.m |
|
|
2520 + 200 / 2580+200 (220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Model |
|
|
|
|
Freezer |
|
Refrigerator |
(MM1-6177) |
||
|
Dial position |
|
|
ON |
|
OFF |
|
OPEN |
|
SHUT |
|
Temperature control |
Warmer |
oC |
|
-13.7 |
|
-19.0 |
|
- |
|
3.5 |
|
|
Normal |
oC |
|
-16.9 |
|
-22.9 |
|
MAX 5.0 |
|
-1.0 + 1.5 |
|
|
Colder |
oC |
|
-20.4 |
|
-27.5 |
|
- |
|
-12.5 |
- 5 -
MR-455R-A
MR-455R-A(NZ)
|
Model |
|
|
|
|
|
|
DD66C13RAW5 |
|
||
|
Power supply |
|
|
|
|
|
|
220/240V 50Hz |
|
||
Compressor |
|
|
|
|
|
|
|
|
|
||
Rated input |
|
|
W |
|
|
127/131(220/240V 50Hz) |
|||||
|
|
|
|
|
|
|
|
|
|||
|
Starting current |
|
|
A |
|
|
8.3/9.1(220/240V 50Hz) |
|
|||
|
|
|
|
|
|
|
|
||||
|
Running current |
|
|
A |
|
|
0.63/0.61(220/240V 50Hz) |
||||
|
|
|
|
|
|
|
|
|
|
||
|
Winding resistance (T : 20 oC) |
|
|
|
|
|
12 Ω(Main) / 28.7 Ω(Aux) |
||||
PTC RELAY |
|
|
|
|
|
|
|
PTH7M330MD2 |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
Model |
|
|
|
|
|
|
5TM205NHBYY |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Motor protector |
Ambient temperature |
|
|
oC |
|
|
|
25 |
|
|
|
|
Time |
|
|
Sec. |
|
|
|
|
16 MAX |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Current |
|
|
A |
|
|
|
6.0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Running capacitor |
|
|
|
|
|
|
|
4 F 400VAC |
|
||
|
|
|
|
|
|
|
|
|
|
|
|
Capillary tube |
|
|
|
mm. |
|
|
1.8 X 0.7 X 2350 |
|
|||
|
|
|
|
|
|
|
|
|
|
||
Dehydrant Molecular sieve |
|
|
g |
|
|
|
10 |
|
|
||
|
|
|
|
|
|
|
|
|
|
||
Refrigerant HFC. 134a |
|
|
g |
|
|
|
145 |
|
|
||
|
|
|
|
|
|
|
|
|
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Defrosting control |
Defrosting timer |
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Control board |
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Defrost finish |
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oC |
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Thermister 14 + 1.5 |
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Thermal fuse |
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oC |
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73 |
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Heater |
Defrost heater |
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384 Ω (240V, 150W) |
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Deodorition |
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Filter |
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Model |
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UDVH15MA1H |
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Type |
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Single phase |
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Fan motor |
Number of poles |
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2p |
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Input |
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W |
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Less than 10.2/12 (220/240V 50Hz) |
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Revolution |
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r.p.m |
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2520 + 200 / 2580+200 (220/240V 50Hz) |
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Model |
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Freezer |
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Refrigerator |
(MM1-6177) |
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Dial position |
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ON |
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OFF |
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OPEN |
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SHUT |
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Temperature control |
Warmer |
oC |
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-13.7 |
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-19.0 |
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- |
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3.5 |
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Normal |
oC |
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-16.9 |
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-22.9 |
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MAX 5.0 |
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-1.0 + 1.5 |
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Colder |
oC |
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-20.4 |
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-27.5 |
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- |
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-12.5 |
- 6 -
2 OUTLINES AND DIMENSIONS
Unit : mm
MR-385R-A 685
MR-385R-A(NZ)
942 568 1591 8
73
PLUG CORD LENGTH
100
1591
1950 |
REQUIRED SPACE FOR INSTALLATION
40
20 |
685 |
20 |
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1334
454 700
- 7 -
Unit : mm
MR-420R-A MR-420R-A(NZ)
685
1047 568 1696 8
73
PLUG CORD LENGTH
1950 |
REQUIRED SPACE FOR INSTALLATION
|
40 |
|
|
100 |
20 |
685 |
20 |
|
|
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1696 |
|
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1334 |
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700 |
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454 |
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- 8 -
Unit : mm
MR-455R-A |
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685 |
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MR-455R-A(NZ) |
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1157 568 1806 8
73
PLUG CORD LENGTH
1950 |
REQUIRED SPACE FOR INSTALLATION
|
40 |
|
|
100 |
20 |
685 |
20 |
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1806 |
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1334 |
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700 |
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454 |
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- 9 -