Samsung AR24HSFNCWKNEU Operations Instructions

AIR CONDITIONER CONTENTSSPLIT-TYPE AIR CONDITIONERsnoituacerP.13. Alignment and Adjustments4. Disassembly and Reassembly5. Disassembly WIFI6. Electric

2-6 Samsung ElectronicsSamsung Electronics 2-72-3 The Comparative Specications of ProductAR24FSFNAWKNFADesign Indoor UnitOutdoor Unit60.412.312.3160.

10-22 Samsung Electronics10-2-19 Heatsink sensor error/Heatsink over heatIndoor display 3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3◎{◎E474 He

Samsung Electronics 10-2310-2-20Comp Vlimit errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3Ƽ ƼE465 Comp V_limit/I_limit ErrorOu

10-24 Samsung ElectronicsYESNOIs the position of temperature sensor and sensing value normal?Is the compressor body and interphase resistance insulate

Samsung Electronics 10-2510-2-21EEPROM error/OTP errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3Ƽ ƼE470 EEPROM Data Error (no d

10-26 Samsung Electronics10-2-22 Operation condition secession errorIndoor display 3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3◎{◎E440Prohibit

Samsung Electronics 10-2710-2-23Gas leak errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3Ƽ ƼrorrekaeLSAG455EOutdoor displayGAS L

10-28 Samsung ElectronicsExchange the Indoor PBAExchange the Outdoor PBAIs the pressure of refrigerant normal?NOCheck the pipe crack.Fill up the refr

Samsung Electronics 10-29102-24No power outdoor (Initial Diagnosis) (Not displayed)1. Checklist :1) Is input power normal?2) Is AC power linked correc

10-30 Samsung ElectronicsExchange the Main PBA, SMPS PBAAfter seperate SMPS DC wire (3PIN RED, 3PIN BLU) from Main PBA Connector CN151, CN152, Chec

Samsung Electronics 10-3110-2-25No power outdoor (Initial Diagnosis) (Not displayed)1. Checklist :1) Is input power normal?2) Is AC power linked corre

2-8 Samsung Electronics2-4 Accessory and Option SpecificationskrameRYT'Q.oN-edoCsnoitpircseDmetIIndoor unit caseInstallation PlateDB90-07731A1Rem

10-32 Samsung Electronics10-2-26AC zero cross signal errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3Ƽ ƼE472 AC zero cross signa

Samsung Electronics 10-3310-2-27AC zero cross signal errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3Ƽ ƼE556 Capacity miss match

10-34 Samsung Electronics10-2-28 When the remote control is not receiving1. Checklist : 1) Check if the connector was normally assembled. 2)

Samsung Electronics 10-3510-2-29EEV or Valve Close error-Self diagnosisIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3Ƽ ƼE422 EEV or

10-36 Samsung Electronics10-2-30 10-3-18 Smart Install error1. Checklist : 1) Check the leakage region.(Use leakage detection liquid or soapy wa

Samsung Electronics 10-3710-3 PCB Inspection Method10-3-1 Pre-inspection Notices1. Check if you pulled out the AC power plug when you eliminate th

10-38 Samsung Electronics㽞 New Function [ Indoor Terminal Block Safety Device ]1. Thermal Fuse is installed in Terminal Block as below.(Thermal Fuse

Samsung Electronics 10-3910-4 ASSY WIFI KIT Inspection Method10-4-1 Status-LED Blinking with interval 0.5sNOInternet OK?YESCheck Wireless AP whether

10-40 Samsung Electronics10-4-2 Status-LED Blinking with interval 3sNONONOWireless AP Poweron??Is the problemoccurred again?Is the problemoccurred ag

Samsung Electronics 10-41<< Status LED Indication >>1. LED ON : Connected with AP & INTERNET2. LED Blinking (Interval of 0.5s) : Conne

Samsung Electronics 3-13. Alignment and Adjustments3-1 Test ModeQ How to Approach Test Mode You can approach the test mode by pressing the on/off sw

Samsung Electronics 11-111. Block Diagram11-1 Indoor unitREMOTE CONTROLPOWER ON/OFFMODE(AUTO,COOL,DRY,FAN,HEAT)FAN SPEED SELECT(H/M/L/AUTO)TURBO OPERA

11-2 Samsung Electronics11-2 Outdoor unitSMPS - PBAInverter - PBASensorComm. In -outPOWER FilterConverterPFCZCP OVPDC LINKDownload4Way V/VEEVReactorCo

Samsung Electronics 11-311-2-1 Pre-inspection Notices1. Check if you pulled out the AC power plug when you eliminate the PCB or front panel 2. Don&apo

11-4 Samsung Electronics11-2-4 Outdoor detailed inspection procedureNo Procedure Inspection Method Cause1Plug out and pull the PCB out of the control

Samsung Electronics 12-112. Reference Sheet12-1 Low Refrigerant Pressure DistributionNote : Please measure the refrigerant pressure after the air cond

12-2 Samsung Electronics12-3 Q & A for Non-troubleClassification Class DescriptionCoolingQThe cooling is weak.AWhen it is hot outside, its cooling

Samsung Electronics 12-3Classification Class DescriptionSmellsQWhenever the air conditioner is turned on, it stinks.AWhen are no components in the air

12-4 Samsung ElectronicsClassification Class DescriptionInstalla tionQWho installs the air conditioner? (Relocation/Re-installation)AWhen relocating o

Samsung Electronics 12-512-4 Cleaning /Filter Change12-4-1 Cleaning your Air ConditionerTo get the best possible use out of your air conditioner, you

12-6 Samsung Electronics12-5 Installation12-5-1 Before InstallationKeep the air conditioner outlet and inlet free from its surroundings.In case of ins

3-2 Samsung Electronics3-2 Display Error and Check Method3-2-1 Indoor Display Error and Check MethodNOITPIRCSEDEDOMRORREE101 / E102Communication Error

Samsung Electronics 12-712-6 Installation Diagram of Indoor Unit and Outdoor Unit12-6-1 Air-Purge ProcedureABCDOutdoor unitIndoor unitGas pipe sideLiq

12-8 Samsung Electronics12-6-2 "Pump down" ProcedurePump down will be carried out when an evaporator is replaced or when the unit is reloca

12-7.Reference SheetIndex for Model Name1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14thSellUnitAR1 2 FSSSBWKN/XSAProject Capacity Feature

This Service Manual is a property of Samsung Electronics Co., Ltd.Any unauthorized use of Manual can be punished under applicableInternational and/or

Samsung Electronics 3-3Outdoor LED Display Error and Check Method (12K/18K/24K)LED PATTERNDESCRIPTIONYEL GRN REDPower off/VDD NGPower ON reset(1sec)No

Samsung Electronics 3-53-3 Setting Option Setup MethodStep 2Enter the Options Setup mode and select your options asscording to the following procedure

3-6 Samsung ElectronicsStep 4Pressing the ON/OFF button ( ) .When pressing the operation ON/OFF key with the direction of remote control for unit, t

Samsung Electronics 3-7Step 1 (Enter the Option Setup mode) is executed.(Seg25 ~ 48 for setting remote control Setup)Push theMode button to set the di

3-8 Samsung ElectronicsPress the Mode Selection key to set the display part and check the display part.The display part shows like below when each tim

Samsung Electronics 3-93-4 EEPROM Download (485 communication model)Ƶ Method#1 : Using Communication line1) Power off 2) Take off the side cover3) Con

Samsung Electronics 1Contents1. Precautions ··········································································································

3-10 Samsung ElectronicsƵ Method#2 : Using Serial line1) Power off 2) Take off the Cabinet : Check the LED off3) Connect PC-Download Jig-PBARS 232 to

Samsung Electronics 4-14. Disassembly and ReassemblyQ Necessary ToolsItem Remark+SCREW DRIVERMONKEY SPANNER- SCREW DRIVER

4-2 Samsung ElectronicsNo PartsProcedure Remark1 PANEL-FRONT 1) Stop the driving of air conditioner and shut off main power supply.2) Detach FI

Samsung Electronics 4-3No PartsProcedure Remark4) Cover Panel is fixed to body by Hook in center area and side area.5) Separate the hook after pushi

4-4 Samsung ElectronicsNo PartsProcedure Remark Caution:Assembly of Cover Panel after service end.- Reassembly is in the reverse order of the remo

Samsung Electronics 4-5No PartsProcedure Remark7) To detach the PANEL-FRONT from the main frame, unfasten 2 screws at the bottom.(use + Screw Driv

4-6 Samsung ElectronicsNo PartsProcedure Remark9) Remove the Panel Frame from the Main Frame as shown on the right side.10) Remove the WIFI KI

Samsung Electronics 4-7No PartsProcedure Remark2CONTORL IN5) Loosen Stepping MOTOR Wire / BLADE Wire.6) Loosen MOTOR Wire. Caution:When you separa

4-8 Samsung ElectronicsNo PartsProcedure Remark5 EVAPORATOR 9) Take off the CASE-CONTROL from the main frame after loosen the remaining connector.

Samsung Electronics 4-9No PartsProcedure Remark4 Evaporator 1) Detach the HOLDER PIPE.2) Unfasten the screw at the left side. (use + Screw Driv

2 Samsung ElectronicsContents8. PCB Diagram ·································································································· 8-18-1

4-10 Samsung ElectronicsNo PartsProcedure Remark5 FAN MOTOR&CROSS FAN1) Unfasten the screw. (use + Screw Driver)2) Detach the FAN Motor case.3)

Samsung Electronics 4-11No PartsProcedure Remark6 Assy SPI Lamp 1) Remove the Assy SPI Lamp from the Back Body as shown on the right side. Caution:-

4-8 Samsung Electronics

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4-12/P 1BSUT 1SPDFEVSF 3FNBSL $PNQSFTTPS %JTBTTFNCMFUIF'FMU$PNQ4PVOE-PPTFOUIFGJYJOHOVU$$8BOEEFUBDIUIF$PNQSFTTPS-FBE8JSF

Samsung Electronics 4-17No PartskrameRerudecorP1 Common W ork 1) Loosen each screws and detach the CabiTop Cover.2) Loosen screws of the Cabi Fr ont a

4-18 Samsung ElectronicsNo PartsProcedure Remark3) Loosen the 4 screws and detach the condbar.4) Loosen fixing screws from the Cabi Front Lh an

Samsung Electronics 4-19No PartsProcedure Remark2Fan&Motor1) Detach the Nut Flange like the picture on the right side.(Turn clockwise because

Samsung Electronics 1-11. Precautions1-1 Installing the air conditionerO Uses should not install the air conditioner by themselves. Ask the dealer o

4-20 Samsung ElectronicsNo PartsProcedure Remark3Ass’y Control Out1) To remove the Cover control box : Pull the motor wire is allow sufficient space

Samsung Electronics 4-21No PartsProcedure Remark5 Compressor 1) Loosen the fixing nut and detach the Compressor Lead Wire. (Use Monkey Spanner.)2) L

Samsung Electronics 5-1No Parts Procedure Remark1 CASESeparate Case-WIFI Topfrom Case-WIFI Button2 BUTTONSeparate Case-WIFI Topfrom Case-WIFI Button3

5-2 Samsung Electronics5-2 ASSY CONTROL IN428135796102928272526242312212215161413302019181117No C ODESpec Q' TYDB93-14236C 116002- 000630PBA緖話 22

5-2 Samsung Electronics5-2 ASSY CONTROL IN4281357961029282725262423122122151614133020191811173132No C O DESpec Q'TYDB93-14236D 116002- 000630PBA緖

5-2 Samsung Electronics5-2 ASSY CONTROL IN123456789101112131415161718192021222425232627No CODE Description Spec Q'TYDB93-14235G ASSY CONTROL IN1A

5-4 Samsung Electronics5-3 Assy Control OutNAME CODEASSYCONTROLOUT DB93-14201D1 GREASE-SILICON 0205-000178 0.002 KG2 SCREW-TAPPING 6002-000527 1 PC3 S

Samsung Electronics 5-55-3 Assy Control OutNAME CODEASSY CONTROL OUT DB93-14373A1 GREASE-SILICON 0205-000178 0.003 KG2 SCREW-TAPPING 6002-000536 4 PC

Samsung Electronics 6-16. Electrical Parts List6-1 INDOOR MAIN PCB (DB92-02873A)Parts Code Design Loc Parts Description Quantity0202-001338 SOLDER-BA

6-2 Samsung ElectronicsParts Code Design Loc Parts Description Quantity2007-000078 R805 R-CHIP 12007-000078 R815 R-CHIP 12007-000084 R707 R-CHIP 12007

1-2 Samsung Electronics1-4 Disposing of the unitO Befo re the throwing out the air conditioner, remove the batteries from the remote control.O When yo

Samsung Electronics 6-3INDOOR MAIN PCB (DB92-02873A) cont.Parts Code Design Loc Parts Description Quantity2007-000148 R904 R-CHIP 12007-000157 R902 R-

6-4 Samsung ElectronicsParts Code Design Loc Parts Description Quantity2203-005249 C806 C-CER,CHIP 12203-005249 C807 C-CER,CHIP 12203-005249 C809 C-CE

Samsung Electronics 6-56-2 OUTDOOR MAIN PBA(DB92-02866A).cepSnoitpircseDcoLngiseDedoCstraP Q'TY0401-001099 D020 DIODE-SWITCHING 1N4148WS,75V,150m

6-6 Samsung ElectronicsOUTDOOR MAIN PBA(DB92-02866A).cepSnoitpircseDcoLngiseDedoCstraP Q'TY18061,PT,W01/1,%5,mho001PIHC-R204R470000-700218061,PT,

Samsung Electronics 6-7.cepSnoitpircseDcoLngiseDedoCstraP Q'TY18061,PT,W01/1,%5,mhoK7.4PIHC-R725R480000-700218061,PT,W01/1,%5,mhoK7.4PIHC-R435R48

6-8 Samsung Electronics.cepSnoitpircseDcoLngiseDedoCstraP Q'TY18061,PT,W01/1,%1,mhoK42PIHC-R474R416000-700218061,PT,W01/1,%1,mhoK72PIHC-R574R1560

Samsung Electronics 6-9.cepSnoitpircseDcoLngiseDedoCstraP Q'TY18061,PT,0PN,V05,%5,Fn330.0PIHC,REC-C515C200200-302218061,PT,0PN,V05,%5,Fn330.0PIHC

6-10 Samsung Electronics.cepSnoitpircseDcoLngiseDedoCstraP Q'TY1T5.0,5001,PT,R5X,V52,%01,Fn0001PIHC,REC-C722C654700-30221T5.0,5001,PT,R5X,V52,%01

Samsung Electronics 6-116-3 OUTDOOR MAIN PBA(DB92-02867A)Parts Code Design Loc Spec. Quantity0201-001528 ADHESIVE-SIL LDC2577D,Y/GRN,175CPS,- 1.61202

Samsung Electronics 6-12OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)3712-001139 CN403 TAB,MALE,6.35x0.8mm 14719-002485 IC401 Smart Power Module,FSBB

Samsung Electronics 2-12. Product Specifications2-1 The Feature of Product䒲#2 step cooling- Get cool quickly and keep cool comfortably without shiveri

Samsung Electronics 6-13OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)0401-001099 D904 1N4148WS,75V,150mA,SOD-323,TP 10401-001099 D905 1N4148WS,75V,15

Samsung Electronics 6-14OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)2007-000074 R227 100ohm,5%,1/10W,TP,1608 12007-000074 R228 100ohm,5%,1/10W,TP,16

Samsung Electronics 6-15OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)2007-000084 R404 4.7Kohm,5%,1/10W,TP,1608 12007-000084 R501 4.7Kohm,5%,1/10W,TP,

Samsung Electronics 6-16OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)2007-000239 R443 1.5Kohm,1%,1/10W,TP,1608 12007-000300 R901 10Kohm,5%,1/8W,TP,20

Samsung Electronics 6-17OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)2007-010245 R065 0.01ohm,1%,2W,TP,6432 12203-000236 C052 0.1nF,5%,50V,C0G,TP,160

Samsung Electronics 6-18OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)2203-005249 C252 100nF,10%,50V,X7R,TP,1608 12203-005249 C253 100nF,10%,50V,X7R,T

Samsung Electronics 6-19OUTDOOR MAIN PBA(DB92-02867A) - 18/24K (cont.)2402-001144 CE403 68uF,20%,25V,LZ,TP,6.3*5.8mm 12402-001144 CE404 68uF,20%,25V,L

Samsung Electronics 6-206-4 ASSY WIFI PCBASSY WIFI PCBCONVERTER PBA

6-21 Samsung Electronics1 - nRST2 - GND3-5V4-UARTRX5-UARTTXANTRF ICFLASHMPUSDRAMCONVERTERCONNECTORLABEL

Samsung Electronics 7-17. Wiring Diagram7-1 Indoor UnitDB68-04014A-1

2-2 Samsung Electronics Samsung Electronics 2-32-2 Product SpecificationsIndoor Unit Outoor Unit Indoor Unit Outoor Unit Indoor Unit Outoor Unit Indoo

7-2 Samsung Electronics7-2 Outdoor UnitAR18HSFNBWK/EUAR18HSFNBWK/EUAR18HSFSRWK/ERAR18HSFNRWK/ER

7-2 Samsung Electronics7-2 Outdoor UnitD B 68-04273A -0AR24HSFNBWK/EUAR18HSSDBWK/EUAR24HSSDBWK/EUAR24HSFSRWK/ERAR24HSFNRWK/ER

Samsung Electronics 7-37-3 ASSY WIFI KITCONVERTER12345654321-12VGNDRSTTX(MAIN)RX(MAIN)RSTGND5VRX(Wi - Fi)TX(Wi -Fi)12V IN5V OUTCON TO Wi-Fi PBACON TO

Samsung Electronics 8-18. PCB Diagram① CN61/CN62/CN63 - STEP MOTOR#1: DC 12V#2~#5 :STEP MOTOR SIGNAL② CN71 - POWER IN#1,#3 : AC220~240V#2 : N.C ③

8-2 Samsung ElectronicsķCN151 - SMPS INV#1 : 15V#2 : GND#3 : ENABLEĸCN204 - DRED#1:DRED1#2 : DRED2#3:DRED3#4:GND#5:5VĹCN201- DOWNLOAD-MAIN#1 ~ #20 : D

Samsung Electronics 8-32EARTH - CN003#1 : EARTH1TB-N - CN001#1 : N3TB-L - CN002#1:L5CN030 - 4-WAY#1,#3 : AC220~240V4CN051/052 - REACTOR#1:REACTOR1#1:R

8-8 Samsung Electronics8-3 Wire connecting the indoor unit terminal blocks1. Terminal press of Ring terminal shall be set facing up before connectin

Samsung Electronics 9-19. Operating Instructions9-1 Name of Each Part9-1-1 Indoor UnitThe design and shape are subject to change according to the mode

9-2 Samsung Electronics9-2 Wireless Remote Control-Buttons and DisplayRemote controller displayOn TimerSet the On Timer on.Single Userwhich reduces en

Samsung Electronics 10-110. Troubleshooting10-1 Items to be checked first1. The input voltage should be rating voltage ±10% range. The air cond

2-2 Samsung ElectronicsSamsung Electronics 2-32-2 Product SpecicationsnUroodnItinUrootuOtinUroodnItinUrootuOtinUroodnI tinUrootuOtinUroodnItinUrootuO

10-2 Samsung Electronics10-2 Communication ErrorIndoor display 3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E101/E102 Communication error(Indoor

Samsung Electronics 10-310-2-2 Indoor temperature sensor ErrorIndoor display 7-SEG DISPLAYDESCRIPTIONE121 Indoor room temp sensor error1. Checklist :

10-4 Samsung Electronics10-2-3 Indoor Eva-in temperature sensor errorIndoor display 3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E122,E123 Indoo

Samsung Electronics 10-510-2-4 When the Up/Down, Left/Right, Grill louver motor does not operate (Initial Diagnosis) (Not displayed)1. Checklist :

10-6 Samsung Electronics10-2-5 Indoor fan motor speed detecting error (BLDC fan)Indoor display 3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E154

Samsung Electronics 10-710-2-6 Outdoor temperature sensor errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E221 Outdoor temperatu

10-8 Samsung Electronics10-2-7 Outdoor Cond temperature sensor errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E231 Outdoor Cond

Samsung Electronics 10-910-2-8 Outdoor Discharge temperature sensor errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E251Outdoor

10-10 Samsung Electronics10-2-9 Outdoor Discharge over temperature errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E416 Outdoor

Samsung Electronics 10-1110-2-10 Outdoor Fan motor errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3rorrenafroodtuO854EƼƼOutdoor

2-6 Samsung Electronics Samsung Electronics 2-72-3 The Comparative Specifications of ProductAR24HSFNBWK/EU AR18HSSDBWK/EU AR24HSSDBWK/EU AR24HSFSRWK/E

10-12 Samsung Electronics10-2-11 Compressor starting errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E461 Comp starting errorƼƼO

Samsung Electronics 10-1310-2-12 Compressor wire missing error/rotation errorIndoor display 3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E467Com

10-14 Samsung Electronics10-2-13 O.C(Over Current) errorIndoor display 3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E464 IPM Over Current(O.C)

Samsung Electronics 10-15Exchange the compressorIs the position of temperature sensor and sensing value normal?Is the compressor body and interphase r

10-16 Samsung Electronics10-2-14 DC_link voltage sensor errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E469 DC_link voltage sen

Samsung Electronics 10-1710-2-15 DC_link voltage sensor errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E488 AC Input Voltage Se

10-18 Samsung Electronics10-2-16DC_link voltage under/over error, H/W DC-link Over voltage protection error/PFC over loadIndoor display3-LED DISPLAY7-

Samsung Electronics 10-19YESYESIs the DC_link sensing voltage("D")is normal in operation mode?Normal range (0.2Vdc~4.0Vdc)Is the reactor ins

10-20 Samsung Electronics10-2-17I_trip error, PFC over currentIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3E462 AC Input I_Limit T

Samsung Electronics 10-2110-2-18Current sensor error/Input current sensor errorIndoor display3-LED DISPLAY7-SEG DISPLAYDESCRIPTIONLED1 LED2 LED3Ƽ ƼE46