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Samsung RB2155BB User Manual

Samsung RB2155BB
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RB1955SW
RB1955SH
RB1955VQ
RB2155SW
RB2155SH
RB2155BB
Model:
Bottom-Mounted Freezer
SAMSUNG Home Appliance Service
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Samsung RB2155BB Specifications

General IconGeneral
BrandSamsung
ModelRB2155BB
CategoryRefrigerator
LanguageEnglish

Summary

SERVICE GUIDE

Bottom-Mounted Freezer

Identifies the specific type of refrigerator covered by this service guide.

INSTALLATION

NOMENCLATURE

Explains the coding system used for refrigerator models.

PRODUCT SPECIFICATIONS

ELECTRICAL PART SPECIFICATIONS & STANDARD

Details electrical components and their standards for the models.

WARRANTY INFORMATION

Interior Views and Dimensions

6-1) Shelves and Bins

Illustrates and describes the various shelves and bins within the refrigerator.

6-2) Dimensions of Refrigerator (Inches)

Provides detailed external dimensions of the refrigerator in inches.

Refrigeration Cycle and Cool Air Circulation Route

7-1) Refrigerant Route in Refrigeration cycle

Outlines the path of the refrigerant through the cooling system.

7-2) Cool Air Circulation

Explains how cold air is distributed throughout the refrigerator compartments.

Mechanical Disassembly

Control Panel

Steps for removing and accessing the refrigerator's control panel.

Refrigerator Light

Instructions for disassembling and replacing the refrigerator lamp.

Freezer Light

Instructions for disassembling and replacing the freezer lamp.

Evaporator Cover in the Refrigerator

Details on how to remove the evaporator cover in the refrigerator section.

Evaporator Cover in the Freezer

Details on how to remove the evaporator cover in the freezer section.

Evaporator in the Refrigerator

Procedures for removing the evaporator unit from the refrigerator compartment.

Evaporator in the Freezer

Procedures for removing the evaporator unit from the freezer compartment.

Machine Compartment & Electric Box

Steps for accessing the machine compartment and electrical box.

Operation Function

9-1) Digital Panel

Describes the features and layout of the digital control panel.

9-2) Temperature Control Function

Explains how to adjust and set temperatures for freezer and refrigerator.

9-3) Power Freeze and Power Cool Functions

Details the operation of rapid cooling and freezing functions.

9-4) Sound Function

Explains the sound alerts for button presses and door alarms.

9-5) Defrost Function

Describes how the automatic defrost cycle operates and its timing.

9-6) Forced Operation Function

Instructions for manually initiating pull-down or defrost cycles.

9-7) Power failure compensating Function

Explains how the system recovers and resets after a power outage.

9-8) Exhibition Function

Describes a mode for showroom display, disabling compressor operation.

9-9) Self-Diagnostics Function

Details how the appliance performs self-diagnosis for potential issues.

9-10) Component Load Operation Function

Explains how to test individual components' output signals from the control board.

9-11) C-Fan Motor Delay function

Describes condenser fan operation based on ambient temperature conditions.

Circuit Descriptions

10-1) Source Power Circuit

Details the circuit responsible for supplying power to the control board.

10-2) Oscillator Circuit

Explains the circuit for clock generation and timing calculations within the MICOM.

10-3) Reset Circuit

Describes the circuit that initializes the MICOM and its memory sectors.

10-4) Door S/W Sensing Circuit

Details the circuit that detects the open/closed state of the refrigerator doors.

10-5) Temperature Sensing Circuit

Explains how thermistors are used to sense and report temperatures to the MICOM.

10-6) Key Scan and Display Circuit

Details the circuit responsible for scanning user inputs and controlling the display.

10-7) Load Drive Circuit

Describes the circuit that controls the operation of loads like compressors and heaters via relays.

10-8) Option Circuit

Explains how DIP switches adjust temperature and function settings.

Diagnostics

11-1) If power is not ON

Provides a flowchart for troubleshooting when the appliance has no power.

11-2) If there is a trouble with self-diagnosis

Guides troubleshooting based on appliance self-diagnosis error codes.

11-3) If the compressor is not working properly

Flowchart for diagnosing issues with the compressor not operating.

11-4) If cooling fan doesn't work

Troubleshooting steps for when the freezer fan (F-fan) fails to operate.

11-5) If the refrigerator fan doesn't work

Troubleshooting steps for when the refrigerator fan (R-fan) fails to operate.

11-6) If the compressor cooling fan motor doesn't work

Troubleshooting steps for the compressor cooling fan motor issues.

11-7) No defrosting

Flowchart to diagnose and resolve issues related to the defrost system.

11-8) Alarm continuously

Troubleshooting steps for when the appliance's alarm sounds continuously.

Illustrated Parts Catalog.

12-1) Freezer

Lists and illustrates the part numbers for the freezer compartment.

12-2) Refrigerator

Lists and illustrates the part numbers for the refrigerator compartment.

12-3) Disassembly of Door

Illustrates parts associated with the refrigerator door assembly.

12-4) Cabinet

Illustrates and lists parts belonging to the main cabinet structure.

Safety Instructions on Service

Appendix I (Reference for circuit diagnostics)

Ref.1) Wire connector on the cabinet door.

Shows the wiring connections for the cabinet door connectors.

Ref. 3) Check a load

Provides resistance measurements for checking various loads like motors and heaters.

Ref. 4) Check sensors

Details how to check the resistance of temperature and defrost sensors.

Ref. 5) Check Door S/W

Explains how to test door switches and their signal outputs.

Ref. 6) Forced Operation and Forced Defrosting

Describes how to use forced operation and defrosting modes for testing.

Ref. 7) Table of temperature sensor according to resistance and voltage conversion.

A table correlating sensor resistance and voltage with temperature values.

11. PCB Circuit Diagram

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