Samsung RS2622, RS2544 If CoolSelect ZoneTM isn’t operated normally RS2555, RS2577, Wave form

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Diagnostics

11-8) If CoolSelect ZoneTM isn’t operated normally (RS2555, RS2577)

1) If the lamp of CoolSelect ZoneTM is not lit.

Start

Is the connector of

NO

CoolSelect ZoneTM inserted correctly

 

 

in the refrigerator?

 

 

 

 

 

 

 

 

 

 

 

YES

 

Reinsert the connector; troubleshoot

 

 

 

 

Is the connector of main

NO

a bad contact.

 

 

 

 

 

 

PCB (CN51) inserted correctly?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

Reinsert the connector in the main

 

 

 

 

Is the connector of

NO

PCB.

 

 

 

 

CoolSelect ZoneTM panel PCB

 

 

 

 

 

 

 

 

 

inserted ?

 

 

 

 

 

 

If the Panel key isn’ t selected:

 

 

 

 

Reinsert the connector; troubleshoot

 

 

YES

 

 

 

 

 

Is lighting operated

YES

a bad contact.

 

 

 

 

normally in the exchange of CoolSelect Zone

TM

 

 

 

 

 

 

 

 

panel PCB?

 

 

 

 

 

 

NO

1.Check the wires of CoolSelect ZoneTM– check the disconnection of wire, short between wires.

2.Check the Lighting Circuit of CoolSelect ZoneTM panel in the main PCB for Short/Open.

3.Check the main PCB of CoolSelect ZoneTM assembly for Short; the wire assembly state between the panel and main PCB.

Panel PCB has trouble for itself.

2)If the Panel PCB key isn’t selected:

-The basic method is applied to check – if you fail in troubleshooting after above the execution, then

NO

Aren’t a key or more pressed

continuously?

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

Reassemble the PCB ass’y/Enforce

 

 

 

 

 

 

 

 

Isn’t the PCB system

 

 

the cancellation of pressed keys

 

 

 

 

 

 

 

 

still operated by separation?

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

Reassemble the PCB asswmbly and

 

 

 

 

 

 

 

 

Is lighting operated

YES

 

Enforce the cancellation of pressed keys

 

 

 

 

 

 

 

 

 

 

 

 

normally after the exchange of

 

 

 

 

 

 

 

 

 

 

 

 

panel-

PCB?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

Refer to 8-7) CoolSelect Zone TM,

 

 

 

 

Panel PCB has trouble for itself.

 

 

 

 

 

Is a periodical wave

NO

 

 

 

Panel Circuit and measure the

 

 

 

form outputted from the main

 

 

 

 

 

 

 

 

wave form.

PCB

 

IC9?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

1. Replace the main PCB.

 

 

 

 

 

 

 

2. Check the wire shorts of CoolSelect

 

1. Check the wires of CoolSelect ZoneTM – check the disconnection of wire, short between wires.

 

ZoneTM panel.

 

 

 

 

2.Check Short/Open the Lighting Circuit section of CoolSelect ZoneTM panel in the main PCB.

3.Check the short of main PCB in CoolSelect ZoneTM . Check the wire assembly

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Contents Model RS2544 RS2622 RS2644 RS2666 RS2777 Important Safety Notice Contents Xtra SpaceTM Door AlarmMulti-Flow System Xtra FreshTMWith the door closed, remove the upper hinge Cover using a screwdriver, and then disconnectTo protect refrigerator in movement It does not fall on youCompany Name NomenclatureModels Product R Refrigerator Label LocationSpecifications Freezer RefrigeratorWarranty information Freezer Interior Views and DimensionsShelves and Bins RefrigeratorDimensions of Refrigerator Inches Freezer Evaporator Dryer Refrigeration Cycle and Cool Air Circulation RouteRefrigerant Route in Refrigeration cycle Capillary TubeCool Air Circulation Freezer Refrigerator Freezer Disassembly Mechanical DisassemblyRefrigerator Disassembly PlasticWire Drawer in Freezer······························Beverage StationTM Control PanelDoor Handle Door GasketTempered Glass Shelf Refrigerator Door Light SwitchRefrigerator Light Plastic Drawers in RefrigeratorEvaporator Cover in the Refrigerator Water FilterUpper Ductwork Evaporator Fan MotorCoolSelect ZoneTM Thermistor Evaporator in RefrigeratorRefrigerator Thermistor CoolSelect ZoneTM ThermistorDoor Bin in Freezer Freezer Door Light SwitchPlastic Wire Drawer in Freezer Freezer ShelfAuger Motor Case Ice maker is located inside of the ice dispenser assemblyDisconnect the ice maker wire connector Unlock the locking tabs to separate the ice maker kitFreezer Light Evaporator Cover in FreezerAmbient Thermistor Evaporator in FreezerFreezer Thermistor Ice-MakerThermistorCondenser Fan Machine Compartment ＆ Electric BoxWater Solenoids Sub-condenserOperation Function Temperature Control Function Digital PanelQuick Ice and Power Cool Functions Power FreezeQuick Ice functionChild Lock Function Fan Motor Delay Function of the Machine Compartment Ice & Water Dispenser FunctionCoolSelect ZoneTM Function RS2666,RS2777 Water Filter Indicator Function Filter IndicatorIce-Maker Function Judgement Remark Preparation of Ice-makerInitial Operation function ·MICOM PortHeater on Water Supply functionDefrost Function Heater OFFDefrost operation Self-Diagnostics in the initial Power on Beeps will cease immediately when the doors are closedSelf-Diagnostics Function Sound FunctionFunction error ErrorError items of self-diagnostics Error items LED Display Details RemarksLoad Operation Check Function Restoration Function for Power OutageThis mode, only the display LEDs for temperature will be on Set Point Shift FunctionShift the freezer temperature sensor Table of Set Point Shift FunctionOperation Function Shift the CoolSelect ZoneTM temperature sensor Shift the Ice maker temperature sensorCircuit Descriptions Oscillator Circuit Source Power CircuitReset Circuit TerminalMicom Temperature Sensing CircuitDoor S/W Sensing Circuit ChangeDEF-sensor and Bimetal work in parallel Key Scan and Display CircuitKey Scan and display operation Key Scan CoolSelect ZoneTM Panel Circuit Fan Motor Bldc Drive Circuit Motor drive circuitVoltages between high-speed and low-speed Load Drive Circuit Eeprom CircuitOption Circuit D602COMP. equivalence circuit of drive section Start DiagnosticsIf power is not on NormalCheck after a lapse of 5 min AssemblyIf the compressor and cooling fan motor don’t work normally ConnectionIf defrost function Exchange and troubleshoot Corresponding sensorPerform forced defrosting for F Room at a time If the ambient sensor has trouble Start If the temperature sensor of F and R room has troubleIf there is a trouble with self-diagnosis Check if the iced solder of main PCB is ShortIf Beep sounds continuously Start If alarm soundIf Ding-Dong sounds continuously Start Remove causes afterWithout sound of buzzer operation Start Main PCB is normal buzzer normalDisplay’ If the panel PCB is not working normally ZoneTM panelDoor open DC If fan doesn’t work ReferenceConnections of door S/W Door closeIf the Panel PCB key isn’t selected If CoolSelect ZoneTM isn’t operated normally RS2555, RS2577If the lamp of CoolSelect ZoneTM is not lit Start Panel PCB has trouble for itselfIf the lamps of freezer / refrigerator does not light Is the inside lamp filament cut?Check the operation of SSR71 and Q701 If Crushed Ice/Cubed Ice doesn’t work properly Safety Instructions on Service Resistance value Appendix ⅠReference for circuit diagnosticsDC 0V Stop Condition ∼DC 12V load working conditionRef Check a load For safety, you must turn the power off LoadValue Contents Ref. Def heaterRef Check Door S/W Lamp Lamp on the REF791 878834 749Ref Service part lists of each circuit board Part Name Specifcation ’TYPage Page Electronics Refrigerator Division 2003 Code DA82-00001D
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