Samsung RS2777, RS2544, RS2666, RS2622 manual If the lamps of freezer / refrigerator does not light

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Diagnostics

11-9) If the lamps of freezer / refrigerator does not light.

Caution!

1.When you are exchanging the lamp of freezer, please exchange or troubleshoot it with the power OFF to avoid an electric shock.

2.Please keep in mind you do not get burnt by the excessive heating of an incandescent light bulb.

Start

YES

Is the inside lamp filament cut?

How to check :

Separate the door S/W and measure its resistance with a measure. As the result, every Open/Close of the door S/W should turn 0/ ∞, respectively.

NO

Does the F-door S/W have a normal contact?

NO

Exchange or troubleshoot the

inside lamp.

1)Where 0 alone comes out : Door S/W has Short trouble.

2)Where ∞ alone comes out : Door S/W has Open trouble.

YES		Exchange or troubleshoot the
		door S/W
Check the connections of F and R-door S/W;
Check the connections of F and R-door S/W;
check and troubleshoot the inside lamp socket.

Reference

If the door is opened, then the contact of door S/W is opened and MICOM gets applied 5V to finally sense Open. If 5V has been sensed over two minutes afterwards, then an Door-Open alarm will sound ‘Ding-Dong’ for 10 seconds in a one-minute cycle. For that reason, if the door S/W has failure, the refrigerator can make a “Ding-Dong” sound per a one-minute cycle. Please note step for its service!

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Contents Model RS2544 RS2622 RS2644 RS2666 RS2777 Important Safety Notice Contents Xtra FreshTM Door AlarmMulti-Flow System Xtra SpaceTMIt does not fall on you Cover using a screwdriver, and then disconnectTo protect refrigerator in movement With the door closed, remove the upper hingeProduct R Refrigerator Label Location NomenclatureModels Company NameFreezer Refrigerator SpecificationsWarranty information Refrigerator Interior Views and DimensionsShelves and Bins FreezerDimensions of Refrigerator Inches Capillary Tube Refrigeration Cycle and Cool Air Circulation RouteRefrigerant Route in Refrigeration cycle Freezer Evaporator DryerCool Air Circulation Freezer Refrigerator PlasticWire Drawer in Freezer······························ Mechanical DisassemblyRefrigerator Disassembly Freezer DisassemblyDoor Gasket Control PanelDoor Handle Beverage StationTMPlastic Drawers in Refrigerator Refrigerator Door Light SwitchRefrigerator Light Tempered Glass ShelfEvaporator Fan Motor Water FilterUpper Ductwork Evaporator Cover in the RefrigeratorCoolSelect ZoneTM Thermistor Evaporator in RefrigeratorRefrigerator Thermistor CoolSelect ZoneTM ThermistorFreezer Shelf Freezer Door Light SwitchPlastic Wire Drawer in Freezer Door Bin in FreezerUnlock the locking tabs to separate the ice maker kit Ice maker is located inside of the ice dispenser assemblyDisconnect the ice maker wire connector Auger Motor CaseEvaporator Cover in Freezer Freezer LightIce-MakerThermistor Evaporator in FreezerFreezer Thermistor Ambient ThermistorSub-condenser Machine Compartment ＆ Electric BoxWater Solenoids Condenser FanOperation Function Digital Panel Temperature Control FunctionPower FreezeQuick Ice function Quick Ice and Power Cool FunctionsChild Lock Function Ice & Water Dispenser Function Fan Motor Delay Function of the Machine CompartmentCoolSelect ZoneTM Function RS2666,RS2777 Filter Indicator Water Filter Indicator FunctionIce-Maker Function ·MICOM Port Preparation of Ice-makerInitial Operation function Judgement RemarkHeater OFF Water Supply functionDefrost Function Heater onDefrost operation Sound Function Beeps will cease immediately when the doors are closedSelf-Diagnostics Function Self-Diagnostics in the initial Power onError items LED Display Details Remarks ErrorError items of self-diagnostics Function errorSet Point Shift Function Restoration Function for Power OutageThis mode, only the display LEDs for temperature will be on Load Operation Check FunctionTable of Set Point Shift Function Shift the freezer temperature sensorOperation Function Shift the Ice maker temperature sensor Shift the CoolSelect ZoneTM temperature sensorCircuit Descriptions Terminal Source Power CircuitReset Circuit Oscillator CircuitChange Temperature Sensing CircuitDoor S/W Sensing Circuit MicomKey Scan and Display Circuit DEF-sensor and Bimetal work in parallelKey Scan and display operation Key Scan CoolSelect ZoneTM Panel Circuit Motor drive circuit Fan Motor Bldc Drive CircuitVoltages between high-speed and low-speed D602 Eeprom CircuitOption Circuit Load Drive CircuitCOMP. equivalence circuit of drive section Normal DiagnosticsIf power is not on StartConnection AssemblyIf the compressor and cooling fan motor don’t work normally Check after a lapse of 5 minExchange and troubleshoot Corresponding sensor If defrost functionPerform forced defrosting for F Room at a time Check if the iced solder of main PCB is Short If the temperature sensor of F and R room has troubleIf there is a trouble with self-diagnosis If the ambient sensor has trouble StartRemove causes after If alarm soundIf Ding-Dong sounds continuously Start If Beep sounds continuously StartMain PCB is normal buzzer normal Without sound of buzzer operation StartDisplay’ ZoneTM panel If the panel PCB is not working normallyDoor close If fan doesn’t work ReferenceConnections of door S/W Door open DCPanel PCB has trouble for itself If CoolSelect ZoneTM isn’t operated normally RS2555, RS2577If the lamp of CoolSelect ZoneTM is not lit Start If the Panel PCB key isn’t selectedIs the inside lamp filament cut? If the lamps of freezer / refrigerator does not lightCheck the operation of SSR71 and Q701 If Crushed Ice/Cubed Ice doesn’t work properly Safety Instructions on Service ∼DC 12V load working condition Appendix ⅠReference for circuit diagnosticsDC 0V Stop Condition Resistance valueRef. Def heater For safety, you must turn the power off LoadValue Contents Ref Check a loadLamp Lamp on the REF Ref Check Door S/W749 878834 791Part Name Specifcation ’TY Ref Service part lists of each circuit boardPage Page Refrigerator Division 2003 Code DA82-00001D Electronics