Contents | Samsung RM255BASB, RM255BABB guide

CONTENTS

PRECAUTIONS	5
PRODUCT SPECIFICATIONS	8
OPERATING INSTRUCTIONS & INSTALLATION	13
DIASSEMBLY and REASSEMBLY	24
TROUBLESHOOTING	37
WIRING DIAGRAM	60
PCB DIAGRAM	73
CIRCUIT (SCHEMATIC) DIAGRAM	74
CURCUIT DESCRIPTIONS	75
REFERENCE INFORMATION	81

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Samsung RM255BASB, RM255BABB manual Contents

Contents

RM255BARB RM255BASB RM255BABB Authorized Training Center Campuses Important Safety Notice Contents Precautionssafety Warnings Symbols Forbidden Product Specifications This operation instruction covers various models Manual RM25 Model SpecificationAfter packing 386lbs Electric Parts Specification Sensor Specifications Model Dispenser Home Bar Electric ComponentsItems Running Photograph Optional Material SpecificationsPart Code Operating Instructions & Installation Temperature Control Operation Digital Panel Power Freeze and Power cool Operation Power Freeze OperationPower cool Operation By in inside function irrespective of current setting At Initial Power On Lock FunctionAble to operate on front panel Cube / Crushed / ICE OFF Selection Function Machine Room F-Fan Motor Delay Function Water Dispenser FunctionLight Operation Load Operation Condition Initial Operation Reverse rotation CCW Forward rotation CW Ice extractionHorizontal position Interval about 880ms Maximum torsion point Water Supply Function Ice-Making FunctionIce Extraction Function Water Supply Time Bold numerals indicate relevant ice tray steps Horizontality operation Defrosting Function Defrosting period is fixed to 8 hoursArctic Zone 53.6 62.6 Arctic Select Zone Function FunctionOperation Fresh Select Zone Function Function Operation Specification Temp .8 ~ 44.6 of the Fridge compartmentTest KEY Operation start Forced Defrosting Function For the R compartment Alarm Function Communication Error Display FunctionWhen water supply is finished, in the ice maker test mode Display Function at Panel Operating Instructions & Installation Self-Diagnostics Function Self-Diagnostics Checklist BAD Item Trouble Status Error DefrostingSensor of R CR Sensor CF-FAN Error CR-FAN ErrorOn Error Trouble Load Condition Display Function Load Mode Checklist Load Item Load StatusRelevant displays about load status is as follows Changing to Optional Mode Option Setting Function KEY Function Value Item Temperature Change Table for the Freezer Compartment Change for freezer compartment Temperature Change Table for the Refrigerator Compartment KEY CR Room Temperature Shift Function Case of basic model, the following items cannot be setMaker For Ice Maker Flow sensor Disassembly and Reassembly Removing the Front Leg Cover Door Assy Removing the Freezer Door Removing the Refrigerator Door Remove two screws holding it to Open the Fresh Select Zone DoorLiner on the right side of the rail To separate it Reattaching the Freezer Door Reattaching the Refrigerator Door Levelling Open the Arctic Select Zone Door Zone Water line must be connected to drinkable water only Do not overtighten the compression Note nutClose the filter cartridge cover Door Sub Parts Control PanelDoor Handle Door Gasket Refrigerator Door Light Switch Refrigerator LightTempered Glass Shelf Plastic Drawers in the Refrigerator Freezer Door Light Switch Freezer CompartmentsDoor Bin in Freezer Plastic Drawer in Freezer Tighten the screws 2 of the ice maker support Ice Dispenser Ice MakerFreezer Light Auger Motor Case Upper Ductwork Partition in the Freezer Screws Pull the upper part of the evaporator cover slightly Evaporator Fan Motor Evaporator in Freezer Freezer Thermistor Thermistor cover ScrewIce-Maker Thermistor Water Tank Evaporator cover in the Refrigerator Evaporator Fan Motor in Refrigerator Evaporator in Fridge Refrigerator ThermistorDuctwork Thermistor Thermistor cover Fresh /Arctic Select ZoneTM Thermistor Upper Ductwork Machine Compartment Electric Box PCB-MAIN AssySub-condenser Water Solenoids Removing the Arctic Select Zone Accessories If power is not on StartNormal Check at the Smps PBA Check Main PCB connection Exchange and repair COMP. Assembly Check connector for Contact failureIf the compressor doesn’t work normally Reference Perform forced defrosting for F R room one at a time If the ambient temperature sensor has trouble How To Check Temperature Sensing in the manualIf there is a trouble with self-diagnosissensor failure Check the soldering on the main PCB for Shorts & breaks Alarm Sounds continuouslyrelated to the buzzer If Ding-Dong sounds continuously StartIf Beep sounds continuously Start Gasket, food etc If the buzzer doesn’t sound Main PCB is normal, buzzer is NormalBuzzer is broken - replace it Replace buzzer or panel PCB If the panel PCB is not working normally Where the Panel PCB key isn’t selectedIt is a care If fan motor doesn’t working normaly Door S/WDoor Open 0V DC Condition These signals will be inputted into Micom Door Open DC If Ice Cubed or/and Ice Crushed dont work normally If Indoor Lamp of Freezer/Refrigerator doesn’t light Replace Inside lamp Replace or troubleshoot Door S/W If Water Drawer doesnt work normally Preliminary Check Replace connector Wire and switch Replace connector and wireIf Dispenser LED Lamp doesnt light Failure of panel PCB itself Wiring Diagram Connector Arrangement Main Board Circuitschematic Diagram Conn Ector Arrangement SMP S Board Power BUS A voltage proportional to 98.9 93.7 40.0 88.9 38.2 84.2 36.4 79.8 34.6 75.7 32.8 71.868.2 64.7 #18 GND0.8V IC75 Input IC75 Output FAN107 Motor Drive Circuit Descriptions Principle of OperationComparison in HIGH/LOW Speed Remarks XAA 13-2 Q & a Problem Possible Causes What To Do Reference Information Problem Possible Causes What To Do Small or hollow cubes Compressor Sub-condenser Hot Pipe Dryer Step valve Additional InformationSuction Pipe Freezer Refrigerator