Panasonic D-R Series User manual

Order No. PAPTH131101CE
Service Manual
Refrigerator
NR-AH146R
NR-AH186R
NR-AH186D
NR-AH186H
NR-AH186G
NR-AH186P
Product Colour
Eco-Blue (RA, HA)
Eco-Gray (RH)
Eco-Peach (RP, HP)
Eco-Green (DG)
Eco-Silver (DS)
Eco-Dark Gray (GH)
Eco-Copper (PN)
Destination
Thailand
© Panasonic Appliances (Thailand) Co., Ltd. 2013.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
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
WARNING
The 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 within this service information by anyone
else could result in serious injury or death.
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.
D -R SERIES G - P SERIESH SERIES

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CONTENT
Page
3
4
5
5
6
6
7
8
9
10
11
12 - 13
14 - 16
1. Safety Cautions for Repairing
1.1 Warning
1.2 Caution
2. Specification and Components
3. Schematic Diagram
3.1 Wiring Diagram : NR-AH146
3.2 Wiring Diagram : NR-AH186
3.3 Wiring Connection : NR-AH146
3.4 Wiring Connection : NR-AH186
4. Performance Data
4.1 NR-AH146
4.2 NR-AH186
5. Disassembly Instruction
5.1 Cover Hinge Top : NR-AH146R, NR-AH186R/D, NR-AH186H
5.2 Top Table : NR-AH186G, NR-AH186P
5.3 Hinge Top
6. Parts Exploded View and Replacement Parts List
6.1 Part Exploded View : Body
6.2 Part Exploded View : Door
6.3 Part Exploded View : Packing
6.4 Replacement Parts List : NR-AH146
6.5 Replacement Parts List : NR-AH186
NR-AH146 / NR-AH186

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1. SAFETY CAUTIONS FOR REPAIRING
When you repair the refrigerator, please kindly take care for the following cautions.
1.1 Warning
Before repairing unit, unplug supply cord
• Before you repair the refrigerator, please 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 part terminal.
• When you replace the parts, please wait for 3 minutes at least for discharging capacitor.
Check safety after repairing
• Check the screws, parts, lead wires to take in place.
• 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.
• Cutting and seal the electric device carefully.
1.2 Caution
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.
Pay attention to refrigerant
• Do not touch liquid 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 transportatin, adjust the bolt
• Otherwise, the floor may be damaged.
Do not touch the pipe after brazing
• Otherwise, your hands may be burnt.
NR-AH146 / NR-AH186

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2. SPECIFICATION AND COMPONENTS
Model
Destination
Code Attached Model
Colour Name
Model Type
Material Spec. (Door)
Plug
Power Source
Specification
Sealed Unit
RA
Eco-
Blue
Eco-
Gray
Eco-
Peach
Eco-
Blue
Eco-
Gray
Eco-
Peach
Eco-
Silver
Eco-
Green
Eco-Dark
Gray
Eco-
Copper
Eco-
Blue
Eco-
Peach
RH
AH146R AH186R
RP RA RH
Flat Type
AH186D
RP
Side : 50 mm., min. / Back : 100 mm., min. / Top : 300 mm., min.
Level 5
Full automatic temp. Control equipment (Thermostat)
Thailand
PCM
C2P
220V, 50Hz
DS DG
AH186HAH186G AH186P
GH PN HA
Grip Type
HP
Evaporator
Compressor
Overload Protector
PTC Relay
Condenser
Refrigrant Charge
Lubricating Oil
Roll - Bond type
Single wall steel tube (Zinc coat)
R134a, 85 ± 5g.
195 ml. (Freol S10)
Capacity Total Volume
Freezer FC
Fresh food PC
EVAP.
PC
Internal Dimension
External Dimension
Net Weight
Installation Space
Energy Level
Temperature Control
Semi automatic (Forcibly evaporated in the air)Defrosting
SGCD (Emboss coating)
SPCC - SD
Exterior
Finish
Shell
Door
Vacuum formed ABS resinInner Liner
Cyclopentane foam (shell and door)Insulation
138L 183L
31L 31L
107L 152L
412 x 308 x 220 412 x 308 x 220
W x D x H (mm) W x D x H (mm)
474 x 377 x 756 474 x 377 x 952
572 x 570 x 1007 572 x 590 x 1203572 x 570 x 1220572 x 570 x 1203
SF35C53GPW5-T1YS SFJ39C72RLW-T0YS
5TM134LFBYY 5TM142MHBYY
PTH7M330MC1 PTH7M330MD2
Electric Parts
Compressor Motor
Door Switch PC
Lamp Receptacle
Lamp
* Specification subjects to change without notice.
Split-phase induction motor, 220 ~ 240V / 50Hz / 77.8W 2 poles
D3D - 121 (Omron), 250V / 0.5A, Switch type S.P. - S.T.
5PS - 51T - 187, 250V / 2A
FDS003
27 Kgs. 34 Kgs.
NR-AH146 / NR-AH186

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3. SCHEMATIC DIAGRAM
3.1 Wiring Diagram : NR-AH146 ( No Capacitor)
LAMP (240V - 15W)
THERMOSTAT
STARTING
RELAY OVERLOAD
PROTECTOR25
6
31
DOOR
SWITCH
N.C C
brownblue
white
white
gray
black
black
blue
C2P 220V / 50Hz
3.2 Wiring Diagram : NR-AH186 ( Have Capacitor)
LAMP (240V - 15W)
THERMOSTAT
STARTING
RELAY
RUNNING
CAPACITOR
COMPRESSOR
OVERLOAD
PROTECTOR25
63
A
M
C
31
DOOR
SWITCH
N.C C
brownblue
white
white gray
gray
blue
black
black
blue
C2P 220V / 50Hz
COMPRESSOR
A
M
C
NR-AH146 / NR-AH186

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3.3 Wiring Connection : NR-AH146 ( No Capacitor)
HARNESS AS. WIRE (MAIN)
HARNESS AS. WIRE (MAIN)
HARNESS AS. WIRE (L T S)
SOCKET ROOM LAMP AS.
THERMO BOX AS.
DOOR SW.
3 WIRES
BROWN : 1
BLACK : 2
2 WIRES
BLUE : 1
WHITE : 1
ROOM
LAMP
THERMOSTAT
# 187 # 187
blue 0.52 mm2
blue 0.5 mm2
black 0.83 mm2
gray 0.83 mm2
black 0.33 mm2
white 0.83 mm2
gray 0.83 mm2
black 0.33 mm2 white 0.83 mm2
gray 0.83 mm2
blue 0.83 mm2
white 0.83 mm2
3 2 1
3 2 1
# 2 5 0 H
# 2 5 0 H
STARTING
RELAY
OVERLOAD
PROTECTOR RUNNING
CAPACITOR
SUPPLY CORD
COMPRESSOR
MOTOR
C
M
52
6
A
3 2 1
1
3
J 3 J 3
J 3 J 3
3 2 1
3 2 1
3 2 1
white 0.5 mm2
gray 0.83 mm2
3.4 Wiring Connection : NR-AH186 ( Have Capacitor)
NR-AH146 / NR-AH186
HARNESS AS. WIRE (L T S)
SOCKET ROOM LAMP AS.
THERMO BOX AS.
DOOR SW.
3 WIRES
BROWN : 1
BLACK : 2
2 WIRES
BLUE : 1
WHITE : 1
ROOM
LAMP
THERMOSTAT
# 187 # 187
blue 0.52 mm2
blue 0.5 mm2
black 0.83 mm2
black 0.33 mm2
white 0.83 mm2
gray 0.83 mm2
black 0.33 mm2 white 0.83 mm2
gray 0.83 mm2
white 0.83 mm2
3 2 1
# 2 5 0 H
STARTING
RELAY
OVERLOAD
PROTECTOR
SUPPLY CORD
COMPRESSOR
MOTOR
C
M
52
6
3
A
3 2 1
1
3
white 0.5 mm2
gray 0.83 mm2

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4. PERFORMANCE DATA
Cooling Performance : Temperature Control
4.1 NR-AH146 (AT 32 ± 1°C)
Thermostat Dial Setting
Mean Fresh Food Compartment Temp.
Mean Ice Making Compartment Temp.
Running Ratio
Power Consumption
“ 5 ”
t3 (°C)
(°C)
(%)
(kWh/Day)
“ 3 ” “ 1 ”
-4.0 ± 2.5 1.0 ± 2.5 6.5 ± 2.5
-12.0 ± 2.5 -6.5 ± 2.5 -0.5 ± 2.5
Vegetable Crisper Temp. (°C) - 5.0 ± 2.5 -
Egg Tray Temp. (°C) - 4.0 ± 2.5 -
Door Shelf Bottom Temp. (°C) - 1.0 ± 2.5 -
60 ± 15 40 ± 15
0.9 or under
25 ± 15
Thermostat Dial Setting
Mean Fresh Food Compartment Temp.
Mean Ice Making Compartment Temp.
Running Ratio
Power Consumption
“ 5 ”
t3 (°C)
(°C)
(%)
(kWh/Day)
“ 3 ” “ 1 ”
-10.0 ± 2.5 -1.0 ± 2.5 3.0 ± 2.5
-15.0 ± 2.5 -6.5 ± 2.5 -1.0 ± 2.5
Vegetable Crisper Temp. (°C) - 3.0 ± 2.5 -
Egg Tray Temp. (°C) - 2.5 ± 2.5 -
Door Shelf Bottom Temp. (°C) - 0.0 ± 2.5 -
85 ± 15 35 ± 15
0.9 or under
25 ± 15
4.2 NR-AH186 (AT 32 ± 1°C)
NR-AH146 / NR-AH186

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5. DISASSEMBLY INSTRUCTION
5.1 Cover Hinge Top : NR-AH146R / NR-AH186R / NR-AH186D / NR-AH186H
5.2 Top Table : NR-AH186G / NR-AH186P
5.3 Hinge Top
- Take out by use screwdriver put at small gap between the cover hinge top with body at arrow mark
and lift it up little.
- Then use hand pull it up slowly.
Fig. 1
- Take out the top panel by remove screws at hanger shells. (Fig. 2)
- Open the door.
- Lift the top panel by pull back a little for unlock from hook. (Fig. 3)
- Lift up the top panel and push it forward for unlock from grill button. (Fig. 4)
- Take out by use boltdriver remove the screws as Fig. 5 and Fig. 6.
- After that lift it up / as Fig. 7 have to lift it until hook loose from hole at Door As.
- When repair it finish / have to tighten screws by control torque 40 ~ 100 kgf.
Fig. 2 Fig. 3 Fig. 4
Fig. 5 (NR-AH145R/185R/185D) Fig. 6 (NR-AH185G/185P) Fig. 7 (NR-AH185G/185P)
NR-AH146 / NR-AH186

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6. PARTS EXPLODED VIEW AND REPLACEMENT PARTS LIST
6.1 Parts Exploded View : Body
(NR-AH146 x 1PC)
(FOR NR-AH146R, 186D/R, 186H)
(FOR NR-AH186G/186P)
(FOR NR-AH186G/P)
Tempered Glass
(NR-AH186G/186P)
(FOR NR-AH186D/G/P)
(FOR NR-AH186)
(FOR NR-AH186)
(NR-AH186G/186P)
22
1
2
3
12
20
(FOR NR-AH146R, 186D/R, 186H)
20
19
13
14
15
16
17
23
24
25 21
18
41
42
39
40
44
43
30
31
32
33
45
36
35
37 38
26 27
28
29
34
NR-AH146 / NR-AH186
4
5
6
7
8
11
10
9

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6.2 Parts Exploded View : Door
NR-AH146 NR-AH186
(FLAT TYPE)
(GRIP TYPE)
NR-AH146 NR-AH186
50 50
51
51
52
46
52
NR-AH146 / NR-AH186
47
49
48