This document is a service manual for Panasonic refrigerators, specifically covering models NR-AH146R, NR-AH186R, NR-AH186D, NR-AH186H, NR-AH186G, and NR-AH186P. It provides essential information for experienced repair technicians, emphasizing safety and the use of authentic parts.
Function Description
The devices are refrigerators designed for food preservation. They utilize a cooling system that includes a compressor, evaporator, and condenser, and feature a thermostat for temperature control. The manual details different model types, including "Flat Type" and "Grip Type," which likely refer to variations in door design or handle.
Important Technical Specifications
The manual provides detailed specifications for two main capacity groups: NR-AH146R (138L total volume) and NR-AH186 series (183L total volume).
General Specifications:
- Power Source: 220V, 50Hz for all models.
- Destination: Thailand.
- Material Spec. (Door): PCM.
- Plug: C2P.
- Energy Level: Level 5.
- Temperature Control: Full automatic thermostat.
- Defrosting: Semi-automatic (forcibly evaporated in the air).
- Exterior Shell Finish: SGCD (Emboss coating).
- Door Finish: SPCC - SD.
- Inner Liner: Vacuum formed ABS resin.
- Insulation: Cyclopentane foam (shell and door), indicating the use of CFC-free insulation materials, as highlighted by the "100% CFC FREE" label.
Capacity (NR-AH146R):
- Total Volume: 138L
- Freezer FC: 31L
- Fresh food PC: 107L
- Internal Dimension (W x D x H):
- EVAP.: 412 x 308 x 220 mm
- PC: 474 x 377 x 756 mm
- External Dimension: 572 x 570 x 1007 mm
- Net Weight: 27 Kgs.
Capacity (NR-AH186 Series):
- Total Volume: 183L
- Freezer FC: 31L
- Fresh food PC: 152L
- Internal Dimension (W x D x H):
- EVAP.: 412 x 308 x 220 mm
- PC: 474 x 377 x 952 mm
- External Dimension:
- 572 x 570 x 1203 mm (for some models)
- 572 x 570 x 1220 mm (for some models)
- 572 x 590 x 1203 mm (for some models)
- Net Weight: 34 Kgs.
Installation Space:
- Side: 50 mm, min.
- Back: 100 mm, min.
- Top: 300 mm, min.
Sealed Unit Components:
- Compressor:
- NR-AH146R: SF35C53GPW5-T1YS
- NR-AH186 Series: SFJ39C72RLW-TOYS
- Overload Protector:
- NR-AH146R: 5TM134LFBYY
- NR-AH186 Series: 5TM142MHBYY
- PTC Relay:
- NR-AH146R: PTH7M330MC1
- NR-AH186 Series: PTH7M330MD2
- Evaporator: Roll - Bond type.
- Condenser: Single wall steel tube (Zinc coat).
- Refrigerant Charge: R134a, 85 ± 5g.
- Lubricating Oil: 195 ml. (Freol S10).
Electric Parts:
- Door Switch PC: D3D-121 (Omron), 250V/0.5A, Switch type S.P. - S.T.
- Compressor Motor: Split-phase induction motor, 220~240V / 50Hz / 77.8W 2 poles.
- Lamp Receptacle: 5PS-51T-187, 250V/2A.
- Lamp: FDS003.
Performance Data (at 32 ± 1°C):
- NR-AH146 (Thermostat Dial Setting "5"):
- Mean Fresh Food Compartment Temp.: -10.0 ± 2.5 °C
- Mean Ice Making Compartment Temp.: -15.0 ± 2.5 °C
- Running Ratio: 85 ± 15 %
- Power Consumption: 0.9 kWh/Day or under
- NR-AH186 (Thermostat Dial Setting "5"):
- Mean Fresh Food Compartment Temp.: -4.0 ± 2.5 °C
- Mean Ice Making Compartment Temp.: -12.0 ± 2.5 °C
- Running Ratio: 60 ± 15 %
- Power Consumption: 0.9 kWh/Day or under
Usage Features
The manual outlines various product color options, including Eco-Blue, Eco-Gray, Eco-Peach, Eco-Green, Eco-Dark Gray, Eco-Silver, and Eco-Copper, indicating a range of aesthetic choices for consumers. The internal layout includes features like ice trays, meat trays, and crispers, designed for organized food storage. Some models (NR-AH186) include a running capacitor in their wiring, which can affect motor starting characteristics.
Maintenance Features
The manual provides detailed disassembly instructions for key components, crucial for repair and maintenance.
Disassembly Instructions:
- Cover Hinge Top (NR-AH146R / NR-AH186R / NR-AH186D / NR-AH186H): Remove by inserting a screwdriver into a small gap between the cover hinge top and the body, then lifting slowly by hand.
- Top Table (NR-AH186G / NR-AH186P): Remove screws from hanger shells, open the door, pull back the top panel to unlock from the hook, then lift and push forward to unlock from the grill button.
- Hinge Top: Remove screws using a boltdriver. Lift the hinge until the hook is loose from the hole in the door assembly. Re-tighten screws with a torque of 40 ~ 100 kgf after repair.
Safety Cautions for Repairing:
- Warning:
- Always unplug the supply cord before repairing.
- Use only authentic parts for replacement.
- Ensure ventilation during brazing to avoid carbon monoxide poisoning.
- Be aware that refrigerant touching fire can produce poisonous gas.
- Avoid touching electrical terminals when checking voltage; wait at least 3 minutes for capacitor discharge before replacing parts.
- After repair, check screws, parts, lead wires, insulation resistance (supply plug and earth), supply cord and plug condition, and clean dust from the plug. Seal electric devices carefully.
- Caution:
- Watch out for hot parts (compressor, pipes, heater) during and after operation to avoid burns.
- Do not touch liquid refrigerant to prevent burns.
- Be careful of sharp edges on parts to avoid cuts.
- Avoid touching evaporator and condenser fins to prevent cuts.
- Adjust the bolt before transportation to prevent floor damage.
- Do not touch pipes immediately after brazing to avoid burns.
Parts List:
The manual includes comprehensive exploded views and replacement parts lists for both body and door components, categorized by model. Critical safety components are marked with a special symbol, emphasizing the need to use manufacturer-specified parts for replacement to prevent shock, fire, or other hazards. Modifications to the original design are not permitted without manufacturer permission. The parts lists include items such as:
- Low side assembly
- Trim evaporator
- Door switch
- Thermostat
- Tubes
- Thermo box control assembly
- Socket room lamp assembly
- Lamps
- Dial thermo
- Button defrost
- Door evaporator
- Trays (ice, meat, PC, glass)
- Crisper
- Hinge components (bottom, top, cover)
- Shell & liner assembly (foam)
- Wiring diagrams
- Compressor and related electrical components (overload protector, PTC relay, capacitor)
- Rubber grommets
- Platforms
- Door assembly (foam) in various colors
- Emblems
- Screws (various types for different fixings)
- Packing materials (carton box, top pads, bottom tray, plastic cover)
- Instruction book (Thai language)
The detailed parts lists, including part numbers and quantities for each model variant, are essential for accurate identification and ordering of replacement components.
To Next Page
Need help?
General
