Samsung AR18NSFHBWKNEU Service Manual Download Page 26

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Summary of Contents for AR18NSFHBWKNEU

Page 1: ...8 Schematic Diagram 9 Operating Instructions 10 Troubleshooting 11 Block Diagram 12 Reference Sheet AR18NSFPEWQNEU AR18NSFPEWQXEU AR24NSFPEWQNEU AR24NSFPEWQXEU AR18NSFHBWKNEU AR18NSFHBWKXEU AR24NSFHBWKNEU AR24NSFHBWKXEU AR18NSFPEWQNEU AR24NSFPEWQNEU Model Code Basic Code AR18MSFPEWQNEU AR18MSFPEWQXEU AR18MSFHBWKNEU AR18MSFHBWKXEU AR18NSFHBWKNEU AR24NSFHBWKNEU AR18NSFPEWQXEU AR24NSFPEWQXEU AR18NSFH...

Page 2: ...ons of Product 2 3 2 4 Accessory and Option Spec cations 2 4 3 Alignment and Adjustments 3 1 3 1 Test Mode 3 1 3 2 Display Error and Check Method 3 2 3 3 Setting Option Setup Method 3 4 4 Disassembly and Reassembly 4 1 4 1 Indoor Unit 4 2 4 2 Outdoor Unit 4 8 5 ASSY CONTROL 5 1 5 1 ASSY CONTROL IN 5 1 5 2 ASSY KIT 5 2 6 Electrical Parts List 6 1 6 1 INDOOR MAIN PCB 6 1 6 2 OUTDOOR MAIN PBA 6 5 7 W...

Page 3: ...cked st 10 1 10 2 Communication Error 10 2 10 3 PCB Inspection Method 10 38 11 Block Diagram 11 1 11 1 Indoor unit 11 1 11 2 Outdoor unit 11 2 12 Reference Sheet 12 1 12 2 Low Refrigerant Pressure Distribution 12 2 12 3 Pressure Capacity mark 12 3 12 4 Q A for Non trouble 12 4 12 5 Cleaning Filter Change 12 7 12 6 Installation 12 9 12 7 Installation Diagram of Indoor Unit and Outdoor Unit 12 10 8 ...

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Page 5: ... it contacts with your skin it can cause skin injury The package of the air conditioner should be recycled or disposed of properly for environmental reasons 1 5 Others Never store or load the air conditioner upside down or sideways to prevent the damage to the compressor Young children or infirm persons should be always supervised when they use the air conditioner Current is measured according to ...

Page 6: ...w air conditioner not only provides maximum cooling power in the summer but also can be an running cost Now meet year round needs with one air conditioner Look for Everywhere The elegant and harmonious design gives priority to the esthetics of your space and complements any of your existing interior décor With its soft color and rounded edge shape the new air conditioner function function allows y...

Page 7: ...se Refrigerant Pipe Refrigerant to Change R410A Heating Proterction Device OLP Operation condition range Cooling Heat Exchanger Refrigerant Control Unit Blow er motor Model ITEM Type Pow er Pow er Consumtion W Low Std Max Energy Efficiency Ratio W W Std Performance Capacity Operating Current A Low Std Max Running Frequency Pow er Noise dB H L Pow er Factor Std AR18NSFPEWQ EU Wall mounted 1600 5000...

Page 8: ... 11 4 11 5 11 5 Outdoor Unit kg 41 5 41 5 41 5 41 5 Indoor Unit W H D mm 1065 298 230 1065 298 230 1065 298 243 1065 298 243 Outdoor Unit W H D mm 880 638 310 880 638 310 880 638 310 880 638 310 Indoor Unit dB 46 51 46 51 Outdoor Unit dB 57 60 57 60 Air Purifying System Filter 3 CARE FILTER 3 CARE FILTER 3 CARE FILTER 3 CARE FILTER Noise MODEL ITEM Design Net Weight Outer Dimension ...

Page 9: ...DB68 07547A AR NSFP DB68 07571A AR NSFH DB93 15882Q DB90 02738A 2 4 4301 000121 1 1 MANUAL USERS DB68 07548A AR NSFP DB68 07570A AR NSFH MANUAL INSTALL 1 DB67 01533A ...

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Page 13: ...tep 1 Enter the Option Setup mode 1 Tack out the batteries of remote control 2 Press the temperature button simultaneously and insert the battery again 3 Make sure the remote control display shown as SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35...

Page 14: ...iriring isheard andtheOPERATIONICON lampofthedisplay metime thentheinputofoptioniscompleted Ifthederivingsoundisn theard tryagainpressingtheON OFFbutton PresstheMode Selectionkeytosetthedisplaypartandcheckthedisplaypart ThedisplaypartshowslikebelowwheneachtimeyoupressModebutton Step3 Uponcompletionoftheselection checkyoumaderightselections ...

Page 15: ...Mode button to set the display panerl to 2 Every time you push the button the display panel reads repeatedly Push the Mode button to set the display panerl to 1 Every time you push the button the display panel reads repeatedly Step 5 Enter the Options Setup mode and select your options asscording to the following procedure ...

Page 16: ...First Removethebatteryfromtheremotecontrol Second Re insertthebatteryintotheremotecontrol Third PressON OFFkeywiththedirectionofremotecontrolforset Errormode 1 Ifalllam ytoretry 2 Iftheunitisnotworkingproperlyoralllampsarecontinuously orrectoptioncodeis setupforitsmodel OptionItems Model SEG 1 24 SEG 25 48 SEG 49 72 AR18NSFPEWQ EU 014005 15625C 27323C 372784 020000 100000 200000 300000 034A4C 113F...

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Page 18: ...power supply 2 Open the FRONT GRILLE and pull out from the PANEL FRONT 3 Detach COVER TERMINAL from the PANEL FRONT use Screw Driver 4 Loosen connector wire white and detach the temperature sensor wire 5 To detach the FRONT PANEL the main frame unfasten 2 screw at the bottom use Screw Driver NEL lifting up the bottom ...

Page 19: ...wire and detach the hook of main frame 2 To detach TRAY DRAIN from the main frame pull the bottom of the TRAY DRAIN towards you 3 CONTROL IN 1 Unfasten the earth screw use Screw Driver 2 Detach COVER CONTROL from the CASECONTROL 3 Detach the temperature sensor 4 Loosen MOTOR Wire 5 Take off the CASE CONTROL from the main frame ...

Page 20: ...ation 4 4 Samsung Electronics No Parts Procedure Remark 4 PBA 1 Unfasten the screw 2 Cut the cable tie 3 Loosen the terminal block wires Caution The terminal is locking type So when you separate terminals pull pressing the button Button ...

Page 21: ...aution When you separate the connector pull pressing the locking button 6 Loosen Main Power connector Caution When you separate the connector pull pressing the locking button 7 Loosen the Thermistor wire connector 8 Loosen the Communication Wire connector and Terminal Block Fuse connector Caution When you separate the connector pull pressing the locking button Caution When you separate the connect...

Page 22: ... 6 Samsung Electronics No Parts Procedure Remark 5 EVAPORATOR 1 Unfasten the screw at the right side use Screw Driver 2 Unfasten the screw at the left side use Screw Driver 3 Detach the HOLDER PIPE 4 Take off the EVAPORATOR from the main frame ...

Page 23: ...S FAN 1 Unfasten the screw in the HOLDER EVAP on the left side of evaporator use Screw Driver 2 unfasten the 3 points screws in the CASE CONTROL and then detach the CASE use Screw Driver 3 unfasten the screw a little use Screw Driver 4 Lift up the evaporator slightly and pull the CROSS FAN to the left side ...

Page 24: ...4 10 s c i n o r t c e l E g n u s m a S 2 2 ...

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Page 27: ...SPM 0VU 1VMM VQ UIF TT Z POUSPM 0VU FBU YDIBOHFS 3FMFBTF UIF SFGSJHFSBOU BU GJSTU PPTFO GJYJOH TDSFX 8 BOE EFUBDI UIF TUFFM CBS JTBTTFNCMF UIF QJQFT JO CPUI JOMFU BOE PVUMFU XJUI XFMEJOH UPSDL FGPSF ZPV EJTBTTFNCMF UIF QJQFT BOE POEFOTFS CF TVSF UIBU UIFSF TIPVME CF OP SFGSJHFSBOU SFNBJOFE JO UIF VOJU PPTFO GJYJOH TDSFX 8 BOE EFUBDI UIF FBU YDIBOHFS Samsung Electronics ...

Page 28: ...sung Electronics No Parts Procedure Remark 5 Compressor 1 Loosenthefixingnutanddetachthe CompressorLeadWire UseMonkeySpanner 2 LoosentheboltsatthebottomofCompressor likethepictureontherightside UseMonkeySpanner ...

Page 29: ...4 13 Maldives Boracay Normal EER only 1 Power off 2 Take off the Cabinet Check the LED off 1 3 Connect PC Download Jig PBA 4 3 EEPROM DOWNLOAD Download Connector 10pin ...

Page 30: ...4 20 5 CLICK 7 CLICK 8 CLICK 8 Start Download 7 Open the file 6 Select COM Port and connect 5 Execute the Universal EEPwriter program 3 Connect PC Download Jig PBA Download Connector 10pin ...

Page 31: ...ty Description 1 DB90 08954B 1 ASSY CASE CONTROL ELECTRIC 2 DB93 04695B 1 ASSY CONNECTOR WIRE 3 DB92 03467G 1 ASSY PCB MAIN 4 DB93 06676A 1 ASSY CONNECTOR WIRE 5 DB93 10943H 1 ASSY CONNECTOR WIRE 6 DB93 10918H 1 ASSY CONNECTOR WIRE 7 DB95 05163A 1 ASSY THERMISTOR IN ...

Page 32: ...DE 4 DB90 08332F 1 ASSY CASE CONTROL 5 DB93 15320A 1 ASSY CONNECTOR WIRE REACTOR 6 0205 000178 0 002 GREASE SILICON 7 6002 000630 1 SCREW TAPPING 8 DB62 12196B 1 HEAT SINK 9 DB91 00933A 4 ASSY SCREW MACHINE 10 DB92 04025C 1 ASSY PCB INVERTER 11 DB92 04029D 1 ASSY PCB MAIN 12 DB93 07452B 1 ASSY CONNECTOR WIRE DC SIGNAL 13 DB93 09497E 1 ASSY CONNECTOR WIRE 14 DB93 16403A 1 ASSY CONNECTOR WIRE AC SIG...

Page 33: ...4 DB68 02809A 1 LABEL BAR CODE 5 DB90 09047B 1 ASSY CASE CONTROL 6 0205 000178 0 003KG GREASE SILICON 7 6002 000536 4 SCREW TAPPING 8 DB61 05790A 1 SUPPORT HEAT SINK 9 DB62 12477A 1 HEAT SINK 10 DB93 15320A 1 ASSY CONNECTOR WIRE REACTOR 11 DB91 00933A 6 ASSY SCREW MACHINE 12 DB92 04027B 1 ASSY PCB INVERTER 13 DB92 04029D 1 ASSY PCB MAIN 14 DB93 07452B 1 ASSY CONNECTOR WIRE DC SIGNAL 15 DB93 10988E...

Page 34: ...D TO CABLE 1 PC 1 3711 003942 CNS11 HEADER BOARD TO CABLE 1 PC 1 3711 004182 CNS91 HEADER BOARD TO CABLE 1 PC 1 3711 004236 CNS43 HEADER BOARD TO CABLE 1 PC 1 3711 004484 CNS61 HEADER BOARD TO CABLE 1 PC 1 3711 005097 CNS62 HEADER BOARD TO CABLE 1 PC 1 3711 006678 CNS32 HEADER BOARD TO CABLE 1 PC 1 3712 001047 CNP73 CONNECTOR TERMINAL 1 PC 1 DB27 00096A FT71 COIL CHOKE 1 PC 1 DB67 00942A VA71 1 CA...

Page 35: ...CHIP 1 PC 3 2007 000076 R602 R CHIP 1 PC 3 2007 000076 R716 R CHIP 1 PC 3 2007 000078 R703 R CHIP 1 PC 3 2007 000078 R706 R CHIP 1 PC 3 2007 000078 R805 R CHIP 1 PC 3 2007 000080 R107 R CHIP 1 PC 3 2007 000084 R707 R CHIP 1 PC 3 2007 000087 R708 R CHIP 1 PC 3 2007 000090 R604 R CHIP 1 PC 3 2007 000090 R701 R CHIP 1 PC 3 2007 000090 R704 R CHIP 1 PC 3 2007 000090 R705 R CHIP 1 PC 3 2007 000090 R723...

Page 36: ... 3 2007 000148 R810 R CHIP 1 PC 3 2007 000148 R813 R CHIP 1 PC 3 2007 000148 R816 R CHIP 1 PC 3 2007 000148 R903 R CHIP 1 PC 3 2007 000148 R904 R CHIP 1 PC 3 2007 000157 R902 R CHIP 1 PC 3 2007 000303 R702 R CHIP 1 PC 3 2007 000385 R724 R CHIP 1 PC 3 2007 000455 R712 R CHIP 1 PC 3 2007 000475 R709 R CHIP 1 PC 3 2007 000476 R101 R CHIP 1 PC 3 2007 000476 R102 R CHIP 1 PC 3 2007 000476 R103 R CHIP 1...

Page 37: ...C 3 2203 005249 C807 C CER CHIP 1 PC 3 2203 005249 C902 C CER CHIP 1 PC 3 2203 006158 C401 C CER CHIP 1 PC 3 2203 006158 C402 C CER CHIP 1 PC 3 2203 006158 C403 C CER CHIP 1 PC 3 2203 006158 C517 C CER CHIP 1 PC 3 2203 006158 C522 C CER CHIP 1 PC 3 2203 006158 C529 C CER CHIP 1 PC 3 2203 006158 C530 C CER CHIP 1 PC 3 2203 006158 C531 C CER CHIP 1 PC 3 2203 006158 C533 C CER CHIP 1 PC 3 2203 006158...

Page 38: ...ECTOR HEADER 1 PC 3711 007817 CN271 HEADER BOARD TO BOARD 1 PC 3712 001047 CN302 CONNECTOR TERMINAL 1 PC DB27 00082A L302 COIL CHOKE 1 PC DB27 00090A L301 COIL CHOKE 1 PC DB68 05458A LABEL BAR CODE LABEL BAR CODE 1 PC DB94 06511A ASSY PCB AUTO 1 PC 1404 001194 PTC301 THERMISTOR PTC 1 PC DB27 00034A BEAD301 COIL CHOKE 1 PC DB94 06512A ASSY PCB SMD 1 PC 0202 001933 SOLDER CREAM SOLDER CREAM 1 G 0406...

Page 39: ... R271 R CHIP 1 PC 2007 000148 R272 R CHIP 1 PC 2007 000148 R284 R CHIP 1 PC 2007 000148 R285 R CHIP 1 PC 2007 000148 R286 R CHIP 1 PC 2007 000148 R306 R CHIP 1 PC 2007 000148 R307 R CHIP 1 PC 2007 000148 R308 R CHIP 1 PC 2007 000148 R309 R CHIP 1 PC 2007 000148 R310 R CHIP 1 PC 2007 000171 R312 R CHIP 1 PC 2007 000455 R251 R CHIP 1 PC 2007 000455 R253 R CHIP 1 PC 2007 000614 R252 R CHIP 1 PC 2007 ...

Page 40: ...C CER CHIP 1 PC 2203 002285 C302 C CER CHIP 1 PC 2203 002285 C303 C CER CHIP 1 PC 2203 005249 C251 C CER CHIP 1 PC 2203 005249 C252 C CER CHIP 1 PC 2203 005249 C253 C CER CHIP 1 PC 2203 005249 C254 C CER CHIP 1 PC 2203 005249 C701 C CER CHIP 1 PC 2203 005249 C702 C CER CHIP 1 PC 2203 006158 C202 C CER CHIP 1 PC 2203 006158 C203 C CER CHIP 1 PC 2203 006158 C206 C CER CHIP 1 PC 2203 006158 C209 C CE...

Page 41: ...DB68 05092A 4 ...

Page 42: ...7 2 _18K DB68 06674A 1 ...

Page 43: ...7 3 7 2 Outdoor Unit_24K DB68 06675A DB68 06675A 00 ...

Page 44: ...MBT3904 2 1 3 F 1M 1 4W R102 C B E MMBT3904 Q802 2 1 3 C805 50V 100n R103 1 4W 1M F J 10K 1 16W R813 CD81 SMBJ5 0CA R902 1 16W 47K J ii5252 lee 470u 25V CE108 Trace1 100n 50V C806 DGND Trace2 Trace3 F 1M 1 4W R104 M S C S NC S D S PW101 TOP253PN 5 4 6 3 7 2 8 1 TRAN_IN R105 2W 300K J TXD1 R525 1 16W 10K J MOTOR_POWER_SAVE VA71 INR14D681K R524 1 16W 10K J HUM_OUT1 I1 O1 I2 O2 I3 O3 I4 O4 I5 O5 I6 O...

Page 45: ...S a m s u n g C o n f i d e n t i a l S a m s u n g ...

Page 46: ...8 3 8 3 Refrigerating Cycle Diagram ...

Page 47: ...l 1 4 DIO CLK STB IRQ 5 GND 6 VCC 7 Vout 8 PWM_LED 9 ROOM_TEMP 1 DC310V 3 6 Bldcdrivingsingaloutput 1 12VSignal CNS21 COMM 1 Signal1 2 Signal2 CN75 SMPS IN CN75 SMPS IN CNS61 STEP MOTOR 1 12V 2 5 STEPMOTORsignal CNS45 TEMPERATURE SENSOR 1 2 ROOMSENSOR 3 4 EVAMIDSENSOR 5 6 EVAINSENSOR CNS32 FJM NASA 1 7 11 14 FJM NASASIGNAL 8 DC5V 9 GND 10 DC12V 1 1 2 2 3 3 5 4 6 7 8 9 10 11 12 13 8 CN75 SMPS IN CN...

Page 48: ...IN INV COMM 1 DC310V 3 15V 4 PGND 5 BLDC FAN POWER SAVE 6 BLDC FAN Feedback CNP001 POWER N OTOR CNP552 CNP901 BLDC FAN CN75 SMPS IN CN75 SMPS IN CNP003 POWER EARTH CN203 INV DOWNLOAD 1 e s a h p W 2 V phase 3 U phase CNP361 ECO COMM Inv PBA S W Download 1 1 2 2 3 3 5 4 6 7 8 9 10 11 12 8 CN75 SMPS IN CNP052 REACTOR 4 CN75 SMPS IN CNP051 REACTOR 5 6 7 9 10 11 12 ...

Page 49: ...551 INV DOWNLOAD CN581 ECO COMM InvPBAS WDownload CN75 SMPS IN CN75 SMPS IN CN003 POWER EARTH CN402 COMP V phase CN403 COMP W phase 1 1 2 2 3 3 5 4 6 7 8 9 10 11 12 8 CN75 SMPS IN CNP051 REACTOR 4 CN75 SMPS IN CNP052 REACTOR 5 6 7 9 13 14 15 10 11 12 CN241 HOT GAS CN351 MAIN COMM CN030 4 WAY VALVE 1 INV_RXD MAIN_TXD 2 INV_TXD MAIN_RXD 3 5V 4 SGND 5 12V 6 Powersave 7 4WAYsingal ...

Page 50: ... CN75 SMPS IN CN75 SMPS IN CN301 4 M M O C 5 8 CN291 HEATER OPTION 1 12V 2 SGND 3 HeaterL 4 HeaterN CN281 DRED OPTION 1 DRED1 signal 2 DRED2 signal 3 DRED3 signal 4 SGND 4 5V 1 1 2 2 3 3 5 4 6 7 8 8 CN75 SMPS IN CN261 MAIN INV COMM 1 INV_TXD MAIN_RXD 2 INV_RXD MAIN_TXD 3 5V 4 SGND 5 12V 6 Power save 7 4WAY singal 4 CN75 SMPS IN CN701 EEV A 5 6 7 1 F1 2 F2 ...

Page 51: ...g wire Is inverted Terminalhasbeencut 2 There shall be no empty space between Ring terminal and Screw after Clamp If not there exists a possibility of fire which can be caused by electric heat in the connecting part Good Bad Ring terminal is connected reversely Bad Not clamped Screw Bad In the gap between Ring terminal Screw Bad Unused Ring Terminal ...

Page 52: ...ion seethepagesat thefrontofthismanual 01 Airintake 02 Airfilter 03 Airflowblade upanddown 04 Airflowblade leftandright 05 Roomtemperaturesensor 06 Display 07 Powerbutton Remotecontrolreceiver B Display 01 good sleepindicator 02 Timerindicator Autocleanindicator 03 Operationindicator 04 Powerbutton 05 Remotecontrollerreceiver ...

Page 53: ...9 1 2 9 2 AR18NSFPEWQXEU AR24NSFPEWQXEU AR18NSFHBWKXEU AR24NSFHBWKXEU Outdoor Unit ...

Page 54: ...modeindicator 04 Optionsindicator 05 Lowbatteryindicator 06 Transmitindicator 07 Fanspeedindicator 08 Verticalairswingindicator 09 Settingsindicator 10 Powerbutton 11 Temperaturebutton 12 Optionsbutton 13 Timerbutton 14 Directionbutton Selectionbutton 15 Verticalairswingbutton 16 Modebutton 17 Fanspeedbutton 18 Singleuserbutton 19 Settingsbutton 20 SETbutton ...

Page 55: ...justed automatically with reference to a temperature of the air blew 3 Fan speed setting is not allowed in DRY mode The speed of the indoor fan is set to LL in DRY mode Fan speed is selected automatically in AUTO mode 4 Compressor stops operation intermittently in Dry mode Compressor operation is controlled automatically in DRY mode depending on the room temperature and humidity 5 Timer LED ORANGE...

Page 56: ...and outdoor unit connected correctly 2 Isn t the power cable and communication cable cross 2 Troubleshooting procedure YES ExchangetheoutdoorunitPBA ExchangetheindoorunitPBA NO NO NO NO ExchangethePBAofnopowerunit Terminatetheservice Terminatetheservice Correct thewrongcable YES YES Isthecommunicationerroroccurredagain Is theconnectionofpowercableand communicationcablenormal YES Restartafterpowero...

Page 57: ...2 Troubleshooting procedure YES ExchangetheindoorPBA YES ExchangetheindoorPBA NO NO Isthesensorresistancevalue 10kohm 3 attheroomtemperature of25 C YES DetachtheassembledsensorfromthePBAsensor connectorandmeasurethesensorresistancewith ohmmeter tester Istheconnectionofpowercable andcommunicationcablenormal Ass ySensorReplace Sensorresistancevalue 20 C 12 09kohm 30 C 8 31kohm 35 C 6 94kohm 40 C 5 8...

Page 58: ...alue in accordance with temperature 2 Troubleshooting procedure YES ExchangetheindoorPBA YES ExchangetheindoorPBA NO NO Isthesensorresistancevalue 3 4and 5 610kohm 3 attheroom temperatureof25ఁ YES DetachtheassembledsensorfromthePBAsensor connectorandmeasurethesensorresistancewith ohmmeter tester Istheconnectionofpowercable andcommunicationcablenormal SensorReplace Sensorresistancevalue 20 C 12 09k...

Page 59: ...d with the connector CN61 CN62 CN63 2 Troubleshooting procedure NO YES ExchangethePBA Normal YES NO NO NO Istheconnectedlouverwire Isthelampblinking YES YES ConnectthewirePBAtolouvermotor Checktheasintheprocedure Nopower Isthevoltagechangeableatthepin 2 5ofCN61 CN62 CN63 louverconnector Doesoperationstartwhenswingbuttonofthe remotecontrolunitpushed Up Downlouvermotorisfaulty Unplugthepowercordandp...

Page 60: ...rocedure NO YES PoweroffandSeparatetheFanmotorwire fromCN72onIndoorPBA ExchangetheFan motor YES YES NO YES YES Doesthefanrotate Isthefanerrorappearedagain Isthereshortamong eachpin 1 6 IsthevoltageofCN72 1 3over250Vdc IsthevoltageofCN72 3 5and 3 6within1Vdc 15Vdcduring theoperation Restartafterpoweroff Reassemblethefanwireandinputthepoweragain PBAproblemorMotorproblem ChangethePBAfirstandchecktheo...

Page 61: ...resistance value of sensor connection pull up correct 2 Troubleshooting procedure YES Exchange the Outdoor PBA YES Exchange the Outdoor PBA NO NO NO Isthe sensorresistance value 1 2 10kohm 3 attheroomtemperature of 25 Isthe sensor connector CN251 connected correctly in accordance with a color YES YES Is the connection of power cable and communication cable normal Sensor Replace Sensor resistance v...

Page 62: ...4 Is the resistance value of sensor connection pull up correct 2 Troubleshooting procedure YES Exchange the Outdoor PBA YES Exchange the Outdoor PBA NO NO NO Isthe sensorresistance value 5 6 10kohm 3 attheroomtemperature of 25 Isthe sensor connector CN251 connected correctly in accordance with a color YES YES Is the connection of power cable and communication cable normal Sensor Replace Sensor res...

Page 63: ...perature 4 Is the resistance value of sensor connection pull up correct 2 Troubleshooting procedure YES Exchange the Outdoor PBA YES Exchange the Outdoor PBA NO NO NO Isthe sensorresistance value 3 4 200kohm 3 attheroomtemperature of 25 Isthe sensor connector CN251 connected correctly in accordance with a color YES YES Is the connection of power cable and communication cable normal Sensor Replace ...

Page 64: ...gas leak 3 Download the EEPROM data 2 Troubleshooting procedure Restart after power off The condition is too poor for airconditionertooperate Wait until discharge temperature is decreased Restart after power off Download the EEPROM data Exchange the Outdoor PBA Exchanged the Compressor Is the discharge over temperature sensor error appeared again Is the discharge over temperature sensor error appe...

Page 65: ...nding of motor and propeller 2 Troubleshooting procedure NO YES Powero Separatethe Fan motor wire from CNP901 on Outdoor PBA Exchange the Fan motor YES YES NO YES YES Does the fan rotate Is the fan error appeared again Is there short among each pin 1 6 Isthevoltageof CNP901 1 3 over250Vdc Is the voltageof CNP901 3 5 and 3 6 with in 1Vdc 15Vdc during the operation Rest Reassemble the fan wire and i...

Page 66: ...ire is connected clockwise U RED V BLU W YEL 3 Is the interphase resistance of compressor normal 2 Troubleshooting procedure Restart after power off Download the EEPROM data Exchange the compressor Is the restart error occurred again Is the connection of compressor wire is normal Is the restart error occurred again Is the compressor body and interphase resistance insulated NO NO NO NO Terminate th...

Page 67: ...connection of cable for the compressor 2 Is the compressor wire is connected clockwise U RED V BLU W YEL 3 Is the interphase resistance of compressor normal 2 Troubleshooting procedure Restartafterpoweroff Exchangethecompressor Istherestarterroroccurredagain Isthe connectionof compressorwireisnormal PBAandCompressor Istherestarterroroccurredagain Isthecompressorbodyand interphaseresistanceinsulate...

Page 68: ...ing temperature abnormal overload 3 Is there any problem as like the temperature sensor separation or measurement value error 4 Is the interphase resistance of compressor normal 2 Troubleshooting procedure Restartafterpoweroff IstheO Cerroroccurred Isthe connectionofcompressorwireisnormal IstheO Cerroroccurredagain Istheconditionofindoor outdoortemperature normalload NO NO NO NO Terminatetheservic...

Page 69: ...ics 10 15 Exchangethecompressor Isthepositionof temperaturesensorandsensing valuenormal Isthecompressorbody andinterphaseresistance insulated NO NO Correctthesensorpositionor exchangethesensor ExchangetheOutdoorPBA YES ...

Page 70: ... Is the reactor wire connected 2 Troubleshooting procedure YES YES YES YES Isthe connectedofreactor wire PBA Reactor Is the DC_link voltage CE101 CE102 CE103 isnormalinoper at ion mode Normal range 280Vdc 320Vdc Is the DC_link sensingvoltage R101 isnormalinoperation mode Normal range 0 2Vdc 4 8Vdc Is the reactor insulation damaged Rest Start the operation cooling mode or heating mode Exchange the ...

Page 71: ...Is the reactor wire connected 3 Is the PFC resistor A value is normal Outdoor PBA 2 Troubleshooting procedure YES YES YES Isthe connectedofreactor wire PBA Reactor Is the DC_link sensing voltage B isnormalinoperation mode Normal range 0 2Vdc 4 8Vdc Is the reactor insulation damaged Restart after power off Start the operation cooling mode or heating mode Exchange the Reactor NO NO NO Connect the re...

Page 72: ... LED BLINKING LED OFF 1 Checklist 1 Is the input voltage of outdoor terminal block is normal 2 Is the input voltage is higher than 300Vac 3 Is the reactor wire connected 2 Troubleshooting procedure YES YES YES Isthe connectedofreactor wire PBA Reactor Isthetheinputvoltageisnomal Normal range 180Vac 270Vac Is the DC_link voltage CE101 CE102 CE103 isnormalinoperation mode Normal range 280Vdc 320Vdc ...

Page 73: ... Electronics 10 19 YES YES IstheDC_linksensing voltage R105 isnormalinoperationmode Normalrange 0 2Vdc 4 0Vdc Isthereactorinsulationdamaged Exchangethe Reactor NO NO ExchangetheOutdoorPBA ExchangetheOutdoorPBA ...

Page 74: ...3 Is there any problem as like the temperature sensor separation or measurement value error 4 Is the interphase resistance of compressor normal 2 Troubleshooting procedure Rest Exchange the Outdoor PBA Is the conditio ndoor outdoor temperature normal load Is the position of temperature sensor and the sensing value normal Is the connection cable for the compressor and power terminal normal NO NO NO...

Page 75: ...LED BLINKING LED OFF 1 Checklist 1 Is the PFC Shunt R701 R702 resistance value correct Check the resistor is opened 2 Is the IPM Shunt R410 R411 resistance value correct Check the resistor is opened 3 Is there no short or open around IC451 2 Troubleshooting procedure Rest Exchange the Outdoor PBA Is the PFC shunt and IPM shunt resistance value correct Is the current sensor error appeared again NO ...

Page 76: ...ensor error O Heatsink Over Temperature Error O LED ON LED BLINKING LED OFF 1 Checklist 1 Are there screws assembly in PBA heatsink 2 Is the gap PBA heatsink 3 Is the fan operation normal 4 Is the cover assembly in control box normal 2 Troubleshooting procedure Restartafterpoweroff Exchangethe OutdoorPBA AretherescrewsinPBA heatsink 4screws Isthefan operationnormal NO NO Fasteningthescrew Checkthe...

Page 77: ...normal overload 3 Is there any problem as like the temperature sensor separation or measurement value error 4 Is the interphase resistance of compressor normal 2 Troubleshooting procedure YES YES YES YES Is the O C error occurred Is the connection of compressor wire is normal Is the Comp Vlimit error occurred again Is the condition of indoor outdoor temperature normal load Rest NO NO NO NO Termina...

Page 78: ...tronics YES NO Isthepositionof temperaturesensorandsensing valuenormal Isthecompressor bodyandinterphaseresistance insulated Exchangethecompressor NO YES Correctthesensorpositionor exchangethesensor ExchangetheOutdoorPBA ...

Page 79: ... OTP errorEEPROM Data Error Main Micom Inv Micom LED ON LED BLINKING LED OFF 1 Checklist 1 Is there a short around micom 2 Is there a short around A 3 Did you download or insert EEPROM IC after changing outdoor PBA 2 Troubleshooting procedure power offand download EEPROM data or Insertthe serviceEEPROM IC Exchange the Outdoor PBA Restartafter poweroff Is the error appeared again NO Terminate the s...

Page 80: ...utdoor display O Operation condition secession O LED ON LED BLINKING LED OFF 1 Checklist 1 Check the temperature around the outdoor unit 2 Troubleshooting procedure Restartafterpoweroff Thetemperatureconditionistoopoortooperate Waituntiltemperatureischanged Istheoperationconditionsecession errorappearedagain Heatingmode Istheoutdoortemperatureover40ఁor under 30ఁ Coolingmode Istheoutdoortemperature...

Page 81: ...EEV valve connection CN701 in Outdoo r unit 4 Check the refrigerant was charged 2 Troubleshooting procedure Rest _in sensor normal Is the gas leak error appeared again Is the EEV valve connection normal IstheEEV valveisoperation Checkthe soundof EEV valve after power on NO NO NO NO Indoor sensor take the normal position Terminate the service Connect the EEV valve Change the EEV valve ChecktheEEV v...

Page 82: ...10 28 Samsung Electronics ExchangetheIndoorPBA ExchangetheOutdoorPBA Isthepressureof refrigerantnormal NO Checkthepipecrack Filluptherefrigerant YES ...

Page 83: ...50 normal 6 Is the voltage of SMPS DC in Main PBA CN151 CN152 normal 2 Troubleshooting procedure Unplug the power cord Restart after power o Check SMPS wire connection Isthe power cable from terminal block to PBA is correct L CN002 N CN001 EARTH CN003 Is the power normal Check the fuse open or not F001 Is AC powerisnormal forSMPS CN150 220Vac 240Vac NO NO NO NO Reconnect the power wire correctly C...

Page 84: ...hooting procedure YES YES YES YES YES YES Is the power cable from terminal block toPBA is correct CNP001 L CNP002 N CNP003 GND Is the power normal Is the SMPS is normal MAIN 18V CE170 17Vdc 19Vdc Checkthe fuse open or not F001 Is the SMPS is normal MAIN 5V CE174 4 5V 5 5Vdc Unplug the power cord Rest Exchange the PBA NO NO NO NO NO NO Reconnect the power wire correctly Checkthe power source Exchan...

Page 85: ...ving 1 Checklist 1 Check if the connector was normally assembled 2 Check the battery in remote control 3 All the lights out and check again Change electronic typed to a rescent light 4 Put the set in operation and check the voltage of display PBA 5 Replace the display PBA ...

Page 86: ...701 in Outdoor unit 4 Check the refrigerant was charged 2 Troubleshooting procedure Rest ChecktheEEV valve operation Exchange the Indoor PBA Exchange the Outdoor PBA Is the positio ndoor eva_in sensor normal Is the gas leak error appeared again Is the EEV valve connection normal IstheEEV valveisoperation Checkthe soundofEEV valveafter power on Is the pressure of refrigerant normal NO NO NO NO NO C...

Page 87: ... is normally If the PBA is defective replace 2 Troubleshooting procedure NO NO NO YES YES YES YES YES YES YES Did stop valve of the low pressure valve open perfectly Among compressor operation does cold air come out from the indoor unit Connect the manifold gauge to the service port of low pressure side service valve and then measure the refrigerant pressure Does measurement pressure include in 10...

Page 88: ...tion circuit Main part EEV control circuit Temperature sensing circuit Communication circuit OPTION HEATER DRED 10 2 33 Indoor detailed inspection procedure No procedure Inspection Method Cause 1 Plug out and pull the PCB out of the control box Check the PCB fuse 1 Is 1st fuse disconnected 2 Is 2nd fuse disconnected Over current Indoor Fan motor short AC part and pattern short of Indoor PBA Check ...

Page 89: ... Wrong Power cable Wiring 2 Is the PFC050 3 4 input voltage 200Vac 240Vac L N E wire wrong wiring Terminal Block PBA Fuse open PT 021 OPEN RY021 RY022 is faulty Inverter Micom IC501 error 3 Is the CE151 voltage 280Vdc 320dc Power circuit is faulty Load short 3 Is the CE101 voltage 280Vdc 320dc PFC050 is faulty Reactor wire is wrong connection 4 Is the SMPS is normal MAIN 12V CE175 11Vdc 13Vdc Swit...

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Page 93: ...l Unit A R 2 4 N S F P E W Q N X E U A R 2 4 N S F H B W K N X E U Project Capacity Feature Series Color Export Project Color Name Division Component Sinkeolreo code DA White Deco WQ PM Gray Deco GM Midnight Blue Deco UR Urban silver Deco SN Cipria Gold Deco FA Maldives 1 XEU EU Project Color Name Division Component Sinkeolreo code DA White Deco WK PM Gray Deco GM Midnight Blue Deco UR Urban silve...

Page 94: ...2 2 Note Please measure the refrigerant pressure after the air conditioner operates on testing cooling mode during more than 10 minutes Indoor Temp Variation 20 C 32 C Outdoor Temp Variation 5 C 45 C Low Refrigerant Pressure Distribution AR18NSF W XEU AR24NSF W XEU ...

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Page 99: ...ir filter out Insert the Air filter back in its original position and close the front panel Dry the Air filter in a ventilated area Clean the Air filter with a vacuum cleaner or soft brush If dust is too heavy rinse it with running water on the usage and environmental conditions In dusty area clean it once a week Power well ventilated area 12 7 12 5 12 5 1 ...

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Page 101: ...12 6 12 9 12 6 1 12 6 2 ...

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Page 104: ...WKNEU AR24NSFPEWQNEU AR24NSFHBWKNEU 12 7 4 Working Range Min Max Rated Outdoor 5 46 35 Indoor 16 32 27 16 46 32 46 32 5 16 5 16 46 20 10 0 10 20 30 40 50 10 5 0 5 10 15 20 25 30 35 40 Ambient Temperature Indoor Temperature Cooling Working Range Working Range Min Max Rated Outdoor 10 24 7 Indoor 27 20 10 24 27 24 27 10 10 10 10 24 20 10 0 10 20 30 40 50 10 5 0 5 10 15 20 25 30 35 40 Ambient Tempera...

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