Samsung RS20NCSW Service Manual
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Also See for RS20NCSW:
- Owner's manual and installation (16 pages) ,
- Owner's manual and installation (16 pages)
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Summarization of Contents
SERVICE GUIDE
SIDE-BY-SIDE REFRIGERATOR
Identifies the document as a service guide for a side-by-side refrigerator.
WARNING
IMPORTANT SAFETY NOTICE
Highlights critical safety information for service personnel, emphasizing risks of injury and damage.
2. INSTRUCTION
Multi-Flow System
Explains the multi-flow air circulation system for even cooling and food preservation.
High humidity for fresher food
Describes the feature of supplying humidified cold air to keep food fresh longer.
Door Alarm
Details the audible alarm triggered when the refrigerator door is left open for an extended period.
3. INSTALLATION
Installation Steps
Outlines initial steps for moving, preparing, and powering on the refrigerator.
Refrigerator Disassembly and Assembly
Provides procedures for disassembling and reassembling refrigerator doors and hinges.
4. NOMENCLATURE
Model Nomenclature Explanation
Explains the meaning of model code components like product, door type, handle, and color.
5. SPECIFICATIONS
5-1. Model Specification
Details the technical specifications of the refrigerator model, including dimensions and capacity.
5-2. Electric Parts Specification
Specifies electrical components, compressor types, sensors, and defrost system details.
Electric Parts Details
Lists specific electrical parts like transformers, motors, switches, and their ratings.
6. INTERIOR VIEWS AND DIMENSIONS
6-1. The Name of Each Part
Identifies and labels internal parts of the freezer and refrigerator compartments with diagrams.
6-2. Dimensions of Unit
Provides detailed external dimensions of the refrigerator unit in various views for installation planning.
7. FREEZING CYCLE AND COOL AIR CIRCULATION ROUTE
7-1. Freezing Cycle
Illustrates the refrigerant flow path through the compressor, condenser, evaporator, and other components.
7-2. Cooling Air Circulation
Depicts the airflow patterns within the freezer and refrigerator compartments for effective cooling.
8. MECHANICAL DISASSEMBLY
8-1. Accessories for storage and parts for lightening
Details the removal process for common internal accessories like door gaskets, shelves, and lights.
Shelf and Guard Removal
Provides step-by-step instructions for removing specific refrigerator shelves and food guards.
Cooling Unit Component Removal
Guides the disassembly of cooling unit parts including covers, ducting, and the fan motor.
Evaporator and Thermistor Removal
Outlines the procedure for removing the evaporator, thermal fuse, and various thermistors from the unit.
Damper and Cover Disassembly
Details the steps for disassembling the damper assembly and refrigerator covers for access.
Machine Compartment Components
Instructions for disassembling the compressor cover, electric box, condenser fan, and sub-condenser.
9. FUNCTION AND OPERATION
9-1. Panel Display
Explains the control panel buttons and LED indicators used for temperature settings and status.
9-2. Temperature Control
Details how to set and adjust freezer and refrigerator temperatures using the control panel interface.
9-3. Alarm Functions
Describes the various alarm sounds, their triggers (door open, button press), and timing.
9-4. Defrost Cycle
Explains the conditions and timing that initiate the automatic defrost cycle for the appliance.
9-5. Test Function
Provides instructions for entering and operating the unit's test modes, including forced running and defrost.
Test Mode Lamp Displays
Illustrates how LED indicators change to reflect different test modes like forced running and defrost.
Forced Running Operation
Details the procedure for initiating and managing the forced running test mode for component operation.
9-6. Self Diagnosis
Covers self-diagnosis procedures for initial power-on and normal operation, including error detection.
Self Diagnosis Display Table
A table mapping symptoms, troubles, and corresponding LED indicators for self-diagnosis.
9-7. Display function of the presently operating parts
Explains how to view the current operating status of various parts via LED indicators.
9-8. C-FAN(Comp-fan) Control In Accordance With Outdoor Temperature
Describes how the condenser fan's operation is controlled based on ambient temperature.
10. CIRCUIT DESCRIPTION
10-1. Power source part
Details the power supply circuit, including voltage regulation and component usage.
10-2. Oscillation circuit part
Explains the oscillation circuit's role in timing and synchronism for internal MICOM elements.
10-3. Reset circuit part
Describes the reset circuit that initializes the MICOM programs upon power application or interruption.
10-4. Door S/W detection circuit
Explains the circuit that detects door open/close status and its impact on fan operation.
10-5. Temperature detection circuit
Details the temperature sensor circuits and how their resistance changes affect MICOM voltage readings.
10-6. Key scan and display circuit part
Describes the circuit for scanning user inputs from keys and driving the display panel.
10-7. BLDC MOTOR drive circuit
Explains the drive circuit for BLDC motors, including fan motor control and protection features.
10-8. Load drive part circuit
Details the circuit controlling various loads like the compressor, heaters, and lamps based on MICOM signals.
10-9. Damper motor drive part
Describes the drive circuit for the damper motor, its control logic, and methods for detecting abnormalities.
10-10. Options
Explains how optional settings affect temperature and function through switching diodes on the PCB.
10-11. Temperature related option
Details temperature shift and hysteresis options for freezer and refrigerator controls, managed by options.
10-12. Electric Circuit Diagram
Presents a comprehensive block and schematic diagram of the refrigerator's electrical systems.
Appendix
Sensor resistance value in accordance with temperature and MICOM voltage
A table correlating sensor resistance values with corresponding temperatures and MICOM voltages.
11. DIAGNOSIS AND TROUBLESHOOTING
11-1. Power cut off
A troubleshooting flowchart for addressing power cut-off issues, guiding through checks and repairs.
11-2. Compressor trouble
A flowchart for diagnosing and troubleshooting compressor-related problems, including pre-inspection.
11-3. Defrost failure
Troubleshooting flowchart for defrost system failures, covering sensor, heater, and relay diagnostics.
11-4. Freezer fan abnormality(BLDC-FAN repair)
A flowchart for troubleshooting freezer fan issues, including voltage checks and PCB repair guidance.
11-5. Refrigerator damper inferiority
Troubleshooting flowchart for refrigerator damper problems, focusing on motor resistance and connection checks.
11-6. Internal light not lit.(Freezer, Refrigerator)
Troubleshooting steps for non-functional internal lights, checking filament and door switch connections.
11-7. Circuit service materials list
A list of part numbers and specifications for essential circuit service materials.
12. ILLSTRATED PARTS CATALOGUE
12-1. Parts of Freezer
Exploded view diagrams detailing the assembly of various parts within the freezer compartment.
Parts list of Freezer
A comprehensive list of freezer parts, including part codes and compatibility specifications.
Parts list of Freezer
Continuation of the detailed list of freezer parts, including part codes and specifications.
12-2. Parts of Refrigerator
Exploded view diagrams detailing the assembly of various parts within the refrigerator compartment.
Parts list of Refrigerator
A comprehensive list of refrigerator parts, including part codes and compatibility specifications.
Parts list of Refrigerator
Continuation of the detailed list of refrigerator parts, including part codes and specifications.
12-3. Parts of Unit
Exploded view diagrams detailing the assembly of major unit components like hinges, motors, and tubing.
Parts list of unit
A comprehensive list of unit parts, including part codes, specifications, and compatibility.
Parts list of unit
Continuation of the detailed list of unit parts, including part codes and specifications.
12-4. Parts of the freezer door
Exploded view diagrams detailing the assembly of various components that make up the freezer door.
Parts list of the freezer door
A comprehensive list of freezer door parts, including part codes and handle specifications.
Parts list of the freezer door
Continuation of the detailed list of freezer door parts, including part codes and specifications.
12-5. Parts of the refrigerator door
Exploded view diagrams detailing the assembly of various components that make up the refrigerator door.
Parts list of the refrigerator door
A comprehensive list of refrigerator door parts, including part codes and handle specifications.
Parts list of the refrigerator door
Continuation of the detailed list of refrigerator door parts, including part codes and specifications.
Appendix I (RS20N for Circuit Diagram)
Circuit Diagram Block
A high-level block diagram summarizing the main electrical circuit sections and their interconnections.
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