Panasonic NR-AH181MS1N User manual

Service Manual
Refrigerator
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
IMPORTANT SAFETY NOTICE
Order No. PHAT090601C3
Product Colour
CFCs have been used in refrigerant as refrigerator and the insulation materials for many
years. But it is now known that these compounds which once seemed so ideal for use as
cleaning agents and in refrigeration systems, destroy the earth’s ozone layer as a result, an
international body decided on a total worldwide ban of harmful CFCs by the end of 1995.
© 2009 Panasonic Home Appliances (Thailand) Co.,Ltd
All rights reserved. Unauthorized copying and distribution
is a violation of law
Silver (S), Black (K)
Mahogany (T)
Destination
India
NR-AH181MS1N
NR-AH181MK1N
NR-AH181MT1N

2
NR-AH181MS1N / AH181MK1N / AH181MT1N
1. Safety Cautions for Repairing
When you repair refrigerator, please kindly take care of following cautions.
Before repairing unit, unplug supply cord
• Before you repair refrigerator, unplug the supply cord.
Use authentic parts when repairing
• When you replace the parts, please use authentic parts to replace defective parts.
Caution during brazing
• When you use touch for brazing, please ensure ventilation. Otherwise, you will be
poisoned by carbon monoxide.
Pay attention to using refrigerant
• If refrigerant touches fire, the gas becomes poisonous gas.
Pay attention to getting electricity shock
• When you check the voltage of terminal, please do not touch the electricity parts
terminal.
• When you replace the parts, please wait three minutes at least for discharging capacitor.
Check safety after repairing
• Check the screws, parts, lead wires to take in place.
•And check the repairing portion whether circumferential parts are damaged or not.
• Check insulation resistance between supply plug and earth.
• When install refrigerator, check condition of supply cord and plug.
• Wipe off the dust on plug.
Watch the hot parts
• During operation and after operation, compressor and pipes are hot.
•Also, under these condition, heater are hot.
• Do not burn your fingers when you touch it.
Pat attention to refrigerant
• Do not touch liguid refrigerant.
• Otherwise, your hands may be burnt.
Pay attention to edge of parts
• Otherwise, your fingers may be cut.
Pay attention to fins of evaporator and condenser.
• Otherwise, your fingers may be cut.
Before transportation, adjust adjustable bolt
• Otherwise, the floor may be damaged.
Do not touch the pipe after brazing
• Otherwise, your hands may be burnt.
1.1 Warning
1.2 Caution

3
2. Specification and Components
2.1 NR-AH181MS1N / AH181MK1N / AH181MT1N
ledoM
Destination
Plug
Power Source 230V, 50Hz
179L
38L
141L
Specification
emuloVlatoTyticapaC
CFrezeerF
CPdoofhserF
Internal
Dimension Width x Depth x Height
.PAVE
CP
noisnemiDlanretxE
thgieWteN
niM.mm003:poT,niM.MM001:kcaB,niM.mm05:ediSecapsnoitallatsnI
tnempiuqelortnoC.pmetcitamotuAlluFlortnoCerutarepmeT (Thermostat)
)riaehtnidetaropaveylbicroF(citamotuAimeSgnitsorfeD
PCM (Pre - Coating Metal)
niserSBAdemrofmuucaVreniLrennI
)rooddnallehs(maofenatnepolcyCnoitalusnI
Sealed Unit
rosserpmoC
Evaporator Roll - Bonded Aluminum Sheet type
)taoccniz(ebutleetsllawelgniSresnednoC
.g5±58,a431-CFHegrahctnargirfeR
liognitacirbuL
Electric Parts
.T.S-.P.SepythctiwS,A5.0/V052,)normo(121-D3DCPhctiwsrooD
Split-phase induction motor, EQ-BR21, 220~240V / 50Hz / 76~77 W
A1/V052,22/41EelcatpecerpmaL
Lamp E14 / 22, 240V / 15W
yalerCTP
rotcetorprotoM
Fµ0.4/V004,L504104roticapacgninnuR
C°37/A01/V052:.pmetorciMesuferutarepmeT
*Specification subjects to change without notice.
NR-AH181MS1N / AH181MK1N / AH181MT1N
NR-AH181MS1N / AH181MK1N / AH181MT1N
India
B3P
412MM. X 308MM. X 220MM.
572MM. X 570MM. X 1220MM.
33 Kgs.
280 ml. (Freol ∞10, 10E)
SF39C60GAW5
PTH7M330MD2
5TM142MHBYY
474MM. X 377MM. X 952MM.
Exterior finish (Cabinet / Door)
Motor Compressor

4
2.2 Schematic Diagram
2.2.1 Wiring Diagram
NR-AH181MS1N , AH181MK1N , AH181MT1N
blue
L
gray
white
white
(91K Ω)
brown
black
black
black
3
MC
A6
52
2
1
light blue
white white
LAMP (240V-15W)
THERMOSTATSTARTING
RELAY
RUNNING
CAPACITOR
COMPRESSOR
MOTOR
THERMO HEATER AS
MOTOR
PROTECTOR
DOOR SWITCH
N.C C
B 3 P
220V
50Hz
NR-AH181MS1N / AH181MK1N / AH181MT1N
2.2.2 Wiring Connection

5
3. Performance Data
3.1 NR-AH181MS1N , AH181MK1N , AH181MT1N
"1""3""5"gnitteSlaiDtatsomrehT 5.2±5.0-5.2±5.6-5.2±5.21-)C°(erutarepmeTrezeerF
Fresh Food Compartment Temperature (°C) -4.0 ± 2.5 1.0 ± 2.5 6.5 ± 2.5
51±5251±0451±06)%(oitaRgninnuR REDNURO0.1)yaD/hWk(noitpmusnoCrewoP
NR-AH181MS1N / AH181MK1N / AH181MT1N
4. Disassembly Instruction
4.1. TOP PANEL
- Take out Top Panel by remove screws at Hanger Shells (Fig. 1).
- Open the door.
- Lift the Top Panel by pull back little for unlock from Hook (Fig. 2).
- Lift up the Top Panel and push it forward for unlock from Grill Button (Fig. 3).
4.2. ESCUTCHEON TOP
- Take out by use fingers lift up Escutcheon Top have small gap then put end of the screw driver between
them.
- Lift up Escutcheon Top carefully because it has many hooks which break down easy.
Fig. 4
3.giF2.giF1.giF

6
5. Parts Location
5.1 BODY
NR-AH181MS1N , AH181MK1N , AH181MT1N
NR-AH181MS1N / AH181MK1N / AH181MT1N

7
5.2 DOOR
NR-AH181MS1N , AH181MK1N , AH181MT1N
NR-AH181MS1N / AH181MK1N / AH181MT1N

TOP PAD L
TOP PAD R
8
NR-AH181MS1N / AH181MK1N / AH181MT1N
6. Packing Location
BOTTOM TRAY AS.
PAPER PROTECTOR FRONT
PACKING AS.
STICKER MODEL NAME POS CODE

9
Part name
Ref.
No.
Part No. Safety Remark
Model/Qty
181MS1N 181MK1N 181MT1N
REPLACEMENT PARTS LIST
Important safety notice :
Components identified by mark have special characteristics important for safety.
When replacing any of these components, use only manufacturer's specified part.
Parts List of NR-AH181MS1N, AH181MK1N, AH181MT1N
NR-AH181MS1N / AH181MK1N / AH181MT1N
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
EVAPORATOR
TRIM EVAP.
DOOR SW.
COVER THERMO AS.
THERMOSTAT
3.5 TUBE (PVC HT) 290
HOLDER THERMO AS.
SOCKET ROOM LAMP
15-240 LAMP
DIAL THERMO.
BUTTON DEFROST
DOOR EVAPORATOR
TRAY ICE
MEAT TRAY
TRAY
LABEL NAME & REF
CRISPER
SHELL & LINER AS. (FOAM) - S
SHELL & LINER AS. (FOAM) - K,T
HINGE BOTTOM
TABLE - S
TABLE - K, T
BUTTON GRILL FRONT
HINGE TOP
WIRING DIAGRAM
HEXAGON NUT 8
SP. WASHER 8
8 WASHER
COMPRESSOR SF39C60RAW5
5 DRYER W
MOTOR PROTECTOR 5TM142MHBYY
PTC RELAY PTH7M330MD2
COVER PROTECTOR
RUBBER GROMMET
PLATFORM FRONT - S
PLATFORM FRONT - K
PLATFORM FRONT - T
PLATFORM SIDE - S
PLATFORM SIDE - K
PLATFORM SIDE - T
PLATFORM BACK - S
PLATFORM BACK - K
PLATFORM BACK - T
HEXAGON 8 BOLT 40
PAN WATER EVA.
HARNESS AS. WIRE (COMP.)
WARNING LABEL
BOX CAPACITOR
MF. CAPACITOR
COVER BOX CAPACITOR
SUPPLY CORD B3P
GASKET DOOR
CAP DOOR TOP - S
CAP DOOR TOP - K
CAP DOOR TOP - T
ESCUTCHEON TOP
CAP HINGE PIN
PIN HINGE TOP
SPRING HINGE PIN
SEAL CAP DOOR PC
DOOR AS. (FOAM) - S
DOOR AS. (FOAM) - K
DOOR AS. (FOAM) - T
CNRAF-161303
CNRAF-167497
CNRAG-153290
CNRBG-166070
CNR39-610762
CNRAJ-152310
CNRBG-166060
CNRAG-159920
CNRAG-156520
CNRAH-207522
CNRAG-150711
CNRAF-172750
CNRAH-140750
CNRAH-230040
CNRAH-238400
CNRAH-267020
CNRAH-267030
CNRAH-267040
CNRAH-238410
CNRBC-315442
CNRBC-315462
CNRAE-136091
CNRAH-248024
CNRAH-248034
CNRAJ-112920
CNRAG-161542
CNRAH-267060
CNRAH-267070
CNRAH-267080
CNR38-8170A1
CNR38-4270A0
CNR38-4170A0
CNR91-075440
CNR39-340920
CNR06-597410
CNR06-592700
CNRAG-160531
CNR01-219932
CNRAH-248011
CNRAH-248001
CNRAH-251470
CNRAH-248690
CNRAH-248700
CNRAH-251480
CNRAH-248241
CNRAH-248251
CNRAH-251491
CNR38-9924A0
CNRAF-161281
CNRBG-175940
CNRAH-239732
CNRAG-159932
CNRAG-153360
CNRAG-158942
CNRAG-162350
CNRAD-300711
CNRAD-322343
CNRAD-322353
CNRAD-322363
CNRAD-322315
CNRAD-306100
CNRAE-111552
CNR08-226871
CNRAD-306110
CNRBD-322972
CNRBD-322992
CNRBD-323002
S
S
S
S
S
S
S
S
S
S
S
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
1
1
1
2
1
1
2
2
2
1
1
1
1
1
4
1
1
1
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
1
1
1
1
1
3
1
1
1
1
1
2
1
1
2
2
2
1
1
1
1
1
4
1
1
1
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
1
1
1
1
1
3
1
1
1
1
1
2
1
1
2
2
2
1
1
1
1
1
4
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
NR-AH181MS1N
NR-AH181MK1N
NR-AH181MT1N
COLOR : SILVER
COLOR : BLACK, MAHOGANY
COLOR : SILVER
COLOR : BLACK, MAHOGANY
NR-AH181MS1N
NR-AH181MK1N
NR-AH181MT1N
COLOUR : SILVER
COLOUR : BLACK
COLOUR : MAHOGANY
CHROME PAINTING
COLOUR : SILVER
COLOUR : BLACK
COLOUR : MAHOGANY

10
Part name
Ref.
No.
Part No. Safety Remark
Model/Qty
181MS1N 181MK1N 181MT1N
53
54
55
56
57
EMBLEM
TRAY EGG 10
SHELF EGG
FREE RACK
SHELF BOTTLE
CNRAD-307954
CNRAD-269530
CNRAD-323910
CNRAD-262911
CNRAD-323930
S
S
S
1
1
1
2
2
1
1
1
2
2
1
1
1
2
2
Part name
Ref.
No.
Part No. Safety Remark
Model/Qty
181MS1N 181MK1N 181MT1N
TRUSS 4 TS 12 (SUS)
TRUSS 4 TS 12 (STEEL)
HEXAGON H. 5TS 12
HEXAGON H. 5TS 14
CNR38-114351
CNR38-1143A0
CNR38-1143A0
CNR38-191551
CNR38-191551
CNR38-1754A3
4
2
2
3
7
2
4
2
2
3
7
2
4
2
2
3
7
2
Screws
FIX TRIM EVA.
FIX TABLE
FIX BUTTON GRILL FRONT
FIX HINGE TOP
FIX PLATEFORM
FIX HINGE BOTTOM
Part name
Ref.
No.
Part No. Safety Remark
Model/Qty
181MS1N 181MK1N 181MT1N
PACKING AS.
BOTTOM TRAY AS.
PLASTIC COVER
TOP PAD L
TOP PAD R
INSTRUCTION BOOK
PAPER PROTECTOR FRONT
CNRBK-118750
CNRBK-118760
CNRBK-118770
CNRBK-114991
CNRAJ-156860
CNRAK-140590
CNRAK-140600
CNRAK-143790
CNRAK-143850
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Packing List
COLOUR : SILVER
COLOUR : BLACK
COLOUR : MAHOGANY
Parts List
NR-AH181MS1N / AH181MK1N / AH181MT1N