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Samsung Electronics

4-4-14 Heatsink sensor error/Heatsink over heat

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

Fastening the screw

Are there screws in PBA-heatsink?

(4 screws)

Check the fan connection

Change the Fan motor

Is the fan operation normal?

Exchange the Outdoor PBA

Restart after power off.

Yes

Содержание AC026KNADEH

Страница 1: ...3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference Sheet AC026KNADEH AC035KNADEH AC071KNADEH AC026JXSCEH AC035JXSCEH AC071JXSCEH Model AC026KNADEH AC035KNADEH AC...

Страница 2: ...ms 4 10 4 3 1 Indoor temperature sensor open short 4 10 4 3 2 Indoor heat exchanger temperature sensor open short 4 11 4 3 3 Indoor FAN error 4 12 4 3 4 Communication error after finishing Tracking 4...

Страница 3: ...k over heat 4 34 4 4 15 Comp Vlimit error Comp current limit error 4 35 4 4 16 EEPROM error OTP error 4 36 4 4 17 AC zero cross signal error 4 37 4 4 18 Operation condition secession error 4 38 4 4 19...

Страница 4: ...used by tracking or short circuit Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches Check the status of the components assembly...

Страница 5: ...Instruct end users to separate the batteries from the remote controllers and store them separately when the product is not used for long time Otherwise leakage from the dry cell may cause problems wi...

Страница 6: ...nvertertechnology itmakesaroomcoolwithhighlyenergysavingandarisestheefficiencyofairconditioner Long Ambient Operation In Low Temperature Itcanarisethereliabilityandthecapacityoftheairconditioner espec...

Страница 7: ...STD W 610 940 Heating STD W 750 1020 Operation current Cooling STD A 3 1 4 4 Heating STD A 3 6 4 7 Noise Cooling Heating Indoor unit In case of strongest air blow dBA 43 43 43 43 Outdoor unit In case...

Страница 8: ...Consumption Cooling STD W 1860 Heating STD W 2330 Operation current Cooling STD A 8 4 Heating STD A 10 6 Noise Cooling Heating Indoor unit In case of strongest air blow dBA 51 51 Outdoor unit In case...

Страница 9: ...e Control 4301 000121 2 User s Installation Manual DB68 06253A DB68 06254A 1 1 Remote Control Holder DB61 06087A 1 M4 x 16 Tapped Screws 6002 000234 2 Cap Screws DB67 01404B 1 CARD WARRNATY DB68 02596...

Страница 10: ...Samsung Electronics 3 1 Item Remarks SCREW DRIVER Adjustable Wrench 8mm 10mm 13mm M6 M8 Hex Wrench Necessary Tools 3 Disassembly and Reassembly...

Страница 11: ...Parts Procedure Remark 1 PANEL FRONT 1 Stopthedrivingofairconditionerandshutoff mainpowersupply 2 DetachFILTERPREfromthePANELFRONT 3 CoverPanelisassembledonbottomofindoor unitasshowninthefigure Remove...

Страница 12: ...dybyHookincenterareaand sidearea 5 SeparatethehookafterpushingbothendofCover Panelasshowninthefigure Watchoutforthedamageofthehook 6 Raisefrontpart upwardobliquelyasshowninthe figureandthenremovetheho...

Страница 13: ...Parts Procedure Remark Caution AssemblyofCoverPanelafterserviceend Reassemblyisinthereverseorderofthe removal Pipinganddrainhosemustbecarefulnotto damageandProgressmustbedonewithboth hands Hook Side H...

Страница 14: ...EL FRONTfromthemain frame unfasten2screwsatthebottom use ScrewDriver 8 TodetachtheCOVER PANELfromthemain frame loosen4HOOKStructures Whenseparatethehook Usethe screwDriver ScrewDriverInsertthehookandt...

Страница 15: ...3 6 Samsung Electronics No Parts Procedure Remark 9 RemovethePanelFrame fromtheMain Frameasshownontherightside...

Страница 16: ...arate the connector pull pressing the locking button 2 Lossen Stepping Motor EEV Display Sensor SPI Fuse Wire Caution When you separate the connector pull pressing the locking button 3 Lossen Motor Te...

Страница 17: ...ark 5 EVAPORATOR 9 TakeofftheCASE CONTROLfrom themainframeafterloosentheremaining connector Caution Whenyouseparatetheconnector pullpressingthelockingbutton 3 TRAYDRAIN 1 TodetachTRAY DRAINfromthemain...

Страница 18: ...rts Procedure Remark 4 Evaporator 1 DetachtheHOLDERPIPE 2 Unfastenthescrewattheleftside use ScrewDriver 3 Unfastenthescrewattherightside use ScrewDriver 4 TodetachEvaporatorfromthemainframe pullthebot...

Страница 19: ...10 Samsung Electronics No Parts Procedure Remark 5 FANMOTOR CROSSFAN 1 Unfastenthescrew use ScrewDriver 2 DetachtheFANMotorcase 3 Unfastenthescrewalittle use ScrewDriver 4 PulltheCROSS FANtotheleftsid...

Страница 20: ...Procedure Remark 1 common work 1 Loosen 1 pcs screw of cover control and detach it 2 Loosen 5 pcs screws on both right and left cabinet side edges and to detach the cover top 3 Loosen 7 screws fixed...

Страница 21: ...Samsung Electronics No Parts Procedure Remark common work 4 Loosen 7 screws to disassemble the cabi right and detach it 5 Loosen 2 screws to disassemble steel bar 6 Loosen 3 screws to disassemble cabi...

Страница 22: ...No Parts Procedure Remark 2 fan motor 1 Loosen 1 screw as indication and detached the fan 2 Loosen 4 pcs motor screws and disconnect the wire between assy control out and motor 3 Loosen 2 pcs bracket...

Страница 23: ...screw from cover control 2 Detach several connections from assy con trol out take out assy control out 4 Heat exchanger 1 Release the refrigerant at first 2 Loosen fixing screw on both side 3 Disasse...

Страница 24: ...Samsung Electronics 3 15 No Parts Procedure Remark 5 compressor 1 Disconnect the compressor lead wire 2 Disassembly the felt comp sound loosen the 3 bolts at the bottom of compres sor...

Страница 25: ...ounting screw in the Cabinet Front RH Use Screw Driver 2 Cabi Top 1 Unscrew and remove 9 screws on each side of the Cabinet Top Use Screw Driver 3 Cabi Install Front 1 Unscrew and remove 1 screw in th...

Страница 26: ...from Cabi Back RH 2 Unscrew and remove 4 screws on each side of the Cabinet Back RH Use Screw Driver 6 Cabi Install Back 1 Unscrew and remove 1 screw in the Cabinet Install Back Use Screw Driver 7 Ca...

Страница 27: ...remove 3 screws in the Ass y Fan Propeller Total Use Screw Driver 2 Remove the Cover from the Fan Propeller 3 Turn 2 mounting nuts as shown in the picture and remove it Use Adjustable Wrench When you...

Страница 28: ...8 Motor mounting screws Use Screw Driver 3 Disconnect the Motor wire From Ass y Control Out 10 Bracket Motor 1 Unscrew and remove 2 mounting screws in Bracket Motor Use Screw Driver 11 Heater 1 Unscr...

Страница 29: ...he Coolant first 2 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 3 Separate the pipe from the Entrance Exit using a welder When removing the compressor Heat Exchanger and Pipe...

Страница 30: ...r wireless remocon which can set 24 digit option code Following is the instructions of setting optioncode with wireless remocon of MR EH01 Please refer to the wired remocon installation manual for set...

Страница 31: ...ss the button will be selected in rotation 6 Setting Fan mode Press Mode button to be changed to FAN mode in the ON status 7 Setting SEG9 SEG10 option Press Low Fan button to enter SEG9 value Press Hi...

Страница 32: ...ton will be selected in rotation 18 Setting Heat mode Press Mode button to be change to HEAT mode in the OFF status 19 Setting SEG23 SEG24 mode Press Low Fan button to enter SEG23 value Press High Fan...

Страница 33: ...ss MAIN RMC When A F isenteredtoSEG5 6 theindoorunitMAINADDRESSisnotchanged IfyousettheSEG3as0 theindoorunitwillmaintainthepreviousMAINADDRESSevenifyouinputtheoptionvalueofSEG6 IfyousettheSEG9as0 thei...

Страница 34: ...door unit installation option suitable for the condition of each installation location Option No 02XXXX 1XXXXX 2XXXXX 3XXXXX Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Explanation PAGE MODE RESERVED Useofex...

Страница 35: ...Indoor 3 4 Indoor 4 1 2 C 2 5 C If you input a number other than 0 4 on the individual control of the indoor unit SEG 20 the indoor is set as Indoor 1 Example If you want to set as Exterior temperatur...

Страница 36: ...ication Details Indication Details Indication Details 0 D Option mode 0 F Tens digitof SEG 0 9 Unitdigitof SEG 0 9 The changed value 0 F When changing a digit of an indoor unit address setting option...

Страница 37: ...Low pressure s w 2nd detection 5 Abnomally high temperature on discharged air on outdoor unit 2nd detection 6 Indoor operation stop due to unconfirmed error on outdoor unit 7 Error due to reverse phas...

Страница 38: ...16 Discharge temperature of a compressor in an outdoor unit is overheated 11 E440 Heating operation is not available since the outdoor air tempera ture is over 30 C Heating E441 Cooling operation is n...

Страница 39: ...m the connector in PCB Restart the system after replacing the PCB Restart the system after connecting to the PCB connector Indoor temperature sensor failure replace Remove the indoor temperature senso...

Страница 40: ...exchanger temperature sensor replace Remove the indoor heat exchanger temperature sensor connector from the PCB and measure the resistance between two terminals Indoor unit display Symptom Short or op...

Страница 41: ...motor connector is disconnected check the motor fan assembly status 4 3 3 Indoor FAN error Yes No Yes Is there foreign substance stuck in the motor fan Yes Is the motor connector disconnected from the...

Страница 42: ...form between the lines square wave with amplitude over 0 7V as shown in the following picture 0 7V 0 7V Good Bad Check the communication cable and replace the indoor unit PCB Remove the communication...

Страница 43: ...ater level in the drain pan high Does drain pump operate when compressor operates Same error occurs again No Drain pump PCB Is the terminal voltage around AC 220V Is the water level in drain pan decre...

Страница 44: ...ymptom EEPROM circuit failure Failure EEPROM component failure EEPROM circuit parts missing damaged soldering failure 4 3 6 EEPROM circuit failure No Yes Are the EEPROM circuit components in good cond...

Страница 45: ...er connected correctly 2 Check procedure Yes Turn off the main power switch circuit break of power outlet and turn on again after 30 seconds Check the input power No Is the outdoor unit power supply L...

Страница 46: ...Samsung Electronics 4 17 Yes Outdoor unit is not powered on Initial diagnosis cont Yes Connect the reactor No Is the reactor connector connected correctly Replace the PBA Cont...

Страница 47: ...ocedure Yes Restart after power off Terminate the service Exchange the indoor unit PBA No Is the communication error occurred again Yes Correct the wrong cable No Is the connection of power cable and...

Страница 48: ...ct the sensor connector Micom error or connector check No Is the sensor resistance value 1 2 10kohm 3 at the room temperature of 25 C Is the sensor connector CN251 connected correctly in accordance wi...

Страница 49: ...ure of 25 C Is the sensor connector CN502 connected correctly in accordance with a colorRED 4PIN Sensor Replace Sensor resistance value 20 C 12 09kohm 30 C 8 31kohm 35 C 6 94kohm 40 C 5 83kohm No No E...

Страница 50: ...rocedure PF2 Yes Reconnect the sensor connector Micom error or connector check No Is the sensor resistance value 5 6 10kohm 3 at the room temperature of 25 C Is the sensor connector CN251 connected co...

Страница 51: ...mperature of 25 25 C Is the sensor connector CN501 connected correctly in accordance with a colorRED 4PIN Sensor Replace Sensor resistance value 20 C 12 09kohm 30 C 8 31kohm 35 C 6 94kohm 40 C 5 83koh...

Страница 52: ...ting procedure PF2 Yes Reconnect the sensor connector Micom error or connector check No Is the sensor resistance value 3 4 10kohm 3 at the room temperature of 25 C Is the sensor connector CN251 connec...

Страница 53: ...error or connector check No Is the sensor resistance value 3 4 CN501 10kohm 3 at the room temperature of 25 25 C Is the sensor connector CN502 connected correctly in accordance with a colorRED 4PIN N...

Страница 54: ...the Outdoor PBA Download the EEPROM data No Is the discharge over temperature sensor error appeared again Terminate the service No No Terminate the service Is the discharge over temperature sensor er...

Страница 55: ...Separate the Fan motor wire from CN901 on Outdoor PBA PBA problem or Motor problem Change the PBA first and check the operation No Yes Does the fan rotate Terminate the service Exchange the Fan motor...

Страница 56: ...ressor normal 2 Troubleshooting procedure Terminate the service Download the EEPROM data No Is the restart error occurred again Is the connection of compressor wire is normal Connect the comp wire nor...

Страница 57: ...ance of compressor normal 2 Troubleshooting procedure Terminate the service No Is the restart error occurred again Is the connection of compressor wire is normal PBA and Compressor Connect the comp wi...

Страница 58: ...error occurred Is the connection of compressor wire is normal No No Yes No No No No No Yes Exchange the Outdoor PBA Correct the sensor position or exchange the sensor Is the O C error occurred again T...

Страница 59: ...4 R005 R006 R007 value is normal Outdoor PBA 2 Troubleshooting procedure Connect the reactor wire No Is the connected of reactor wire PBA Reactor Is the DC_link voltage CE101 or CE001 is normal in ope...

Страница 60: ...rmal Outdoor PBA 2 Troubleshooting procedure Connect the reactor wire No Is the connected of reactor wire PBA Reactor Is the the input voltage is nomal Normal range 180Vac 270Vac Is the reactor insula...

Страница 61: ...rror 4 Is the interphase resistance of compressor normal 2 Troubleshooting procedure Restart after returning to the normal load No Yes Is the condition of indoor outdoor temperature normal load Is the...

Страница 62: ...he IPM Shunt PF2 R451 R452 R453 PF23 R413 R414 R415 resistance value correct Check the resistor is opened 3 Is there no short or open around IC451 PF2 or IC451 IC452 PF3 2 Troubleshooting procedure Ex...

Страница 63: ...Is the gap PBA heatsink 3 Is the fan operation normal 4 Is the cover assembly in control box normal 2 Troubleshooting procedure Fastening the screw No Are there screws in PBA heatsink 4 screws No Chec...

Страница 64: ...minate the service Exchange the Outdoor PBA No No Yes IIs the O C error occurred Is the O C error occurred again Terminate the service No No No No No No Connect the comp wire normally Terminate the se...

Страница 65: ...re a short around IC202 PF2 or IC701 PF3 3 Did you download or insert EEPROM IC after changing outdoor PBA 2 Troubleshooting procedure Terminate the service No Restart after power off Is the error app...

Страница 66: ...st 1 Check the power condition at customer s house Is there any power noise 2 Have been there power failure 2 Troubleshooting procedure Terminate the service No Is the AC line zero cross signal error...

Страница 67: ...Troubleshooting procedure Terminate the service No Is the operation condition secession error appeared again Heating mode Is the outdoor temperature over 40 C or under 30 C Cooling mode Is the outdoo...

Страница 68: ...ocedure Exchange the one of them according to the exact model spec Terminate the service Terminate the service No No No Is the capacity miss match error appeared again Is the capacity miss match error...

Страница 69: ...eck the pipe crack Fill up the refrigerant No No Is the position of indoor eva_in sensor normal No No No Terminate the service Change the EEV valve Connect the EEV valve Is the gas leak error appeared...

Страница 70: ...Samsung Electronics 5 1 5 PCB Diagram 5 1 PCB Diagram 5 1 1 Indoor Unit PCB AC026KNADEH AC035KNADEH AC071KNADEH Main PBA 4 5 6 7 8 10 8 11 12 13 1 2 3...

Страница 71: ...URE SENSOR SIGNAL 6 GND 1 3 LED SIGNAL 4 REMOCON SIGNAL 5 GND 6 DC 5V 7 8 REMOCON SIGNAL 9 11 NOT USED 1 GND 2 NOT USED 3 DC 5V 4 7 EEPROM SIGNAL 1 8 DOWNLOAD SIGNAL 9 GND 10 11 DC 5V 12 16 DOWNLOAD S...

Страница 72: ...5 3 Samsung Electronics Sub PCB 1 1 2 19 20 COMM SIGNAL 3 18 EXTERNAL CONTROL 4 17 COMP CHECK 5 16 ERROR CHECK 6 VCC DC5V 7 14 GND 8 13 15 DC12V 9 12 COMM SIGNAL CN1 2WIRES COMM...

Страница 73: ...AVWHT 3 REACTOR DBT081 2PWHT 4 BLDCFAN YW396 06VWHT 5 COMM YW396 02VRED 6 SUBPBAPOWER SMW200 05PBLK 7 EEVA SMW250 05RED 8 COMP DBT061 3PWHT 9 SMPS SMW250 03BLU 10 EEPROM B7P MQWHT 11 TEMPSENSOR SMW200...

Страница 74: ...TOR SMW250 03 WHT 8 DB65 00320A CN304 DRED DAPC 2009 6P BLK 9 3711 000744 CN103 EARTH YDW236 01 WHT 10 3711 000177 CN303 COMM INDOOR YW396 02V RED 11 3716 001162 CN003 QUIET S W BR 7623 2P BLK 12 3711...

Страница 75: ...engineer debugging 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 COMP U phase RED 2 COMP V phase BLU 3 COMP U phase YEL Rea...

Страница 76: ...Samsung Electronics 5 7 L1 BRN N1 SKY BLU 1 3 AC 220 240V L1 AC POWER L phase N1 AC POWER N phase CN01 AC POWER 3 1 2 EMI PCB This Document can not be used without Samsung s authorization...

Страница 77: ...Operating Instructions and Installation 6 1 Samsung Electronics This Document can not be used without Samsung s authorization 6 Wiring Diagram 6 1 Indoor Unit...

Страница 78: ...Samsung Electronics 6 2 This Document can not be used without Samsung s authorization 6 2 Outdoor Unit AC026JXSCEH AC035JXSCEH...

Страница 79: ...Samsung Electronics 6 3 AC071JXSCEH...

Страница 80: ...ide General Temp N Non Inv Side Low Temp R Non Inv Side Tropical Temp Z Non Inv Top Tropical Temp U UNITED STATUS DUCT K DVM PLUS4 V DVM Inverter L DVM SLIM G DVM GHP M DVM MINI W DVM WATER C DVM GEO...

Страница 81: ...iquid to gas Absorbing heat required for evaporation SERVICE VALVE You can open the valve by turning the need valve counterclockwise using hex wrench and it is used for vacuum gas purging coolant inje...

Страница 82: ...l is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law Samsung Electronics Co Ltd Jun 2016 Printed in China Cod...

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