Samsung RM255BABB, RM255BASB Alarm Sounds continuouslyrelated to the buzzer, Gasket, food etc

Page 65

DIAGNOSTIC

6-5) Alarm Sounds continuously(related to the buzzer)

1) If “Ding-Dong” sounds continuously

Start

Freezer door MICOM No. 49, Fridge door MICOM No. 47 CF - door micom no.50

CR - door micom no.48

–Regular voltages are 5V to Open : 0V to Close.

Yes

Is the door slightly open?


	No			Remove causes after understanding
	No			the conditions for interference by door
				the conditions for interference by door
Is moisture penetrated			Yes	gasket, food etc.


into the door S/W?
	NO

				Exchange the door S/W.


Is the input voltage of main PCB			NO
			NO

changed at door-open, door-close?


	YES			Troubleshoot the breaking of
				wire and bad door S/W.
Is connector (CN30) inserted			NO
			NO

correctly?
correctly?

Separate the door S/W and check if the measured value of unit is changed from 0 to depending to S/W ON/OFF.


		YES			Troubleshoot if connector is not
					inserted or poor contact.
	Main PCB and door S/W are			NO
				NO

	normal?
	normal?

		YES			inserted or poor contact.
					Exchange the door S/W.
	Main PCB and door S/W are normal.				Exchange the door S/W.

2) If “Beep” sounds continuously

Start

Did you select forced	Selected
Did you select forced
operation and forced defrosting?

NO

NO

Does buzzer still sound after power-on again?

Release the forced operation and forced defrosting functions, or turn ON again after power OFF.

YES

Check if there is any part shorted out or

foreign matter in the test jumper part within the

main-PCB.

Main PCB is normal

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Contents RM255BARB RM255BASB RM255BABB Authorized Training Center Campuses Important Safety Notice Contents Precautionssafety Warnings Symbols Forbidden Product Specifications Manual This operation instruction covers various modelsAfter packing 386lbs Model SpecificationRM25 Sensor Electric Parts SpecificationElectric Components Specifications Model Dispenser Home BarItems RunningPart Code Optional Material SpecificationsPhotograph Operating Instructions & Installation Digital Panel Temperature Control OperationPower Freeze Operation Power Freeze and Power cool OperationPower cool Operation By in inside function irrespective of current settingLock Function At Initial Power OnAble to operate on front panel Cube / Crushed / ICE OFF Selection FunctionWater Dispenser Function Machine Room F-Fan Motor Delay FunctionLight Operation Load Operation ConditionReverse rotation CCW Forward rotation CW Ice extraction Initial OperationHorizontal position Interval about 880ms Maximum torsion pointIce-Making Function Water Supply FunctionIce Extraction Function Water Supply TimeBold numerals indicate relevant ice tray steps Horizontality operation Defrosting period is fixed to 8 hours Defrosting FunctionArctic Zone 53.6 62.6Function Arctic Select Zone FunctionOperation Fresh Select Zone FunctionTemp .8 ~ 44.6 of the Fridge compartment Function Operation SpecificationTest KEY Operation startFor the R compartment Forced Defrosting FunctionCommunication Error Display Function Alarm FunctionWhen water supply is finished, in the ice maker test mode Display Function at PanelSelf-Diagnostics Function Operating Instructions & InstallationBAD Item Trouble Status Self-Diagnostics ChecklistDefrosting ErrorSensor of R CR SensorCR-FAN Error CF-FAN ErrorOn Error TroubleRelevant displays about load status is as follows Load Mode Checklist Load Item Load StatusLoad Condition Display Function Option Setting Function Changing to Optional ModeValue Item KEY FunctionChange for freezer compartment Temperature Change Table for the Freezer CompartmentKEY Temperature Change Table for the Refrigerator CompartmentCase of basic model, the following items cannot be set CR Room Temperature Shift FunctionMaker For Ice Maker Flow sensorDisassembly and Reassembly Door Assy Removing the Front Leg CoverRemoving the Freezer Door Removing the Refrigerator Door Liner on the right side of the rail To separate it Open the Fresh Select Zone DoorRemove two screws holding it to Reattaching the Freezer Door Reattaching the Refrigerator Door Levelling Zone Open the Arctic Select Zone DoorClose the filter cartridge cover Do not overtighten the compression Note nutWater line must be connected to drinkable water only Control Panel Door Sub PartsDoor Handle Door GasketRefrigerator Light Refrigerator Door Light SwitchTempered Glass Shelf Plastic Drawers in the RefrigeratorFreezer Compartments Freezer Door Light SwitchDoor Bin in Freezer Plastic Drawer in FreezerFreezer Light Ice Dispenser Ice MakerTighten the screws 2 of the ice maker support Upper Ductwork Auger Motor CaseScrews Pull the upper part of the evaporator cover slightly Partition in the FreezerEvaporator in Freezer Evaporator Fan MotorThermistor cover Screw Freezer ThermistorIce-Maker Thermistor Water TankEvaporator Fan Motor in Refrigerator Evaporator cover in the RefrigeratorRefrigerator Thermistor Evaporator in FridgeDuctwork Thermistor Thermistor cover Fresh /Arctic Select ZoneTM ThermistorUpper Ductwork PCB-MAIN Assy Machine Compartment Electric BoxSub-condenser Water SolenoidsRemoving the Arctic Select Zone Accessories Start If power is not onNormal Check at the Smps PBA Check Main PCB connectionIf the compressor doesn’t work normally Check connector for Contact failureExchange and repair COMP. Assembly Perform forced defrosting for F R room one at a time ReferenceHow To Check Temperature Sensing in the manual If the ambient temperature sensor has troubleIf there is a trouble with self-diagnosissensor failure Check the soldering on the main PCB for Shorts & breaksIf Ding-Dong sounds continuously Start Alarm Sounds continuouslyrelated to the buzzerIf Beep sounds continuously Start Gasket, food etcMain PCB is normal, buzzer is Normal If the buzzer doesn’t soundBuzzer is broken - replace it Replace buzzer or panel PCBIt is a care Where the Panel PCB key isn’t selectedIf the panel PCB is not working normally Door S/W If fan motor doesn’t working normalyDoor Open 0V DC ConditionDoor Open DC These signals will be inputted into MicomIf Ice Cubed or/and Ice Crushed dont work normally Replace Inside lamp Replace or troubleshoot Door S/W If Indoor Lamp of Freezer/Refrigerator doesn’t lightIf Water Drawer doesnt work normally Preliminary Check Replace connector and wire Replace connector Wire and switchIf Dispenser LED Lamp doesnt light Failure of panel PCB itselfWiring Diagram Connector Arrangement Main Board Circuitschematic Diagram Conn Ector Arrangement SMP S Board A voltage proportional to Power BUS93.7 40.0 88.9 38.2 84.2 36.4 79.8 34.6 75.7 32.8 71.8 98.968.2 64.7107 IC75 Input IC75 Output FAN#18 GND0.8V Principle of Operation Motor Drive Circuit DescriptionsComparison in HIGH/LOW Speed RemarksXAA Reference Information 13-2 Q & a Problem Possible Causes What To DoSmall or hollow cubes Problem Possible Causes What To DoSuction Pipe Additional InformationCompressor Sub-condenser Hot Pipe Dryer Step valve Freezer Refrigerator