Samsung AC018JN4DCH/AA Service Manual Download Page 51

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Troubleshooting

Samsung Electronics

4-11

Test run mode and view mode (Continued)

䭊

DIP Switch Options

OFF

Set an auto address.

Set a manual address.

Snowdrift prevention control not used.

Snowdrift prevention control used.

Silent control not used

OFF

Silent control used Step_1

OFF

Silent control used Step_2

OFF

Silent control used Step_3

Auto silent mode

Manual silent mode

Summary of Contents for AC018JN4DCH/AA

Page 1: ...4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference Sheet INDOOR UNIT OUTDOOR UNIT Model AC018JN4DCH AA AC024JN4DCH AA AC030JN4DCH AA AC036JN4DCH AA AC042JN4DCH AA AC048JN4DCH AA AC024KN4DCH CB AC036KN4DCH CB AC018JXADCH AA AC024JXADCH AA AC030JXADCH AA AC036JXADCH AA AC042JXADCH AA AC048JXADCH AA AC024KXAPCH CB AC036KXAPCH CB ...

Page 2: ... Wired Remote Controller 4 5 4 1 4 Setting an indoor unit installation option Suitable for the condition of each installation location 4 6 4 1 5 Changing a particular option 4 8 4 1 6 Option code for each model 4 9 4 2 Items to check before diagnostics 4 10 4 2 1 Test run mode and View Mode 4 10 4 2 2 Eco Mode Power Saving Mode 4 12 4 2 3 Four directions cassette type 4 13 4 2 4 Wired remote contr...

Page 3: ...rror Code E464 4 36 4 3 16 DC LINK Over current and Low voltage Error Error Code E466 4 39 4 3 17 Gas Leakage Error Error Code E554 4 41 4 3 18 Pipe Blocking Error Error Code E422 4 43 4 3 19 Other 4 44 5 PCB Diagram and Parts List 5 1 5 1 Indoor Unit 5 1 5 1 1 MAIN PCB 5 1 5 1 2 Panel PCB 5 3 5 2 Outdoor Unit 5 4 5 2 1 MAIN PCB 5 4 5 2 2 SUB PCB 5 5 5 2 3 SMPS 5 6 5 2 4 MAIN PCB 5 7 5 2 5 INVERTE...

Page 4: ...ire caused by tracking or short circuit O Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches O Check the status of the components assembly after repair service The status must be the same as before the repair service 1 2 Precautions related to static electricity and PL O The PCB power supply block is susceptible to static elect...

Page 5: ...tric shock O 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 with the remote controller 1 4 Other precautions O The pipes should have no leaks during installation and the compressor must be stopped before removing connecting pipes for pump down work O...

Page 6: ...ure in small temperature steps of 0 1 C that you may not be able to sense t BTZ JOTUBMMBUJPO PG VMUSB MJHIUXFJHIU JOEPPS VOJU A filter that obviates the need for replacement and or maintenance up to 1 000 2 000 hours and retains its initial cleanness Comparison of weights with other companies 11kg 4 46 20kg 2 Product Specifications 2 1 The Feature of Product Four direction cassette with powerful t...

Page 7: ...locked t VODUJPO UP DPOUSPM PQUJNVN SPPN UFNQFSBUVSF UIBU reduces temperature variation Room temperature sense condition can be set to Indoor average of wired remote controller to minimize the variation in temperature between the upper and lower levels generated by the effects of indoor air flow so that optimum room temperature will be maintained t 0CUBJOFE 4UFSJMJ BUJPO 5SFBUNFOU 4 NBSL UIBU SFNP...

Page 8: ...m the panel display and the service time and inconvenience can be minimized by submitting a service request based on the information from the self diagnostics of indoor unit t JOJNVN JOTUBMMBUJPO DPTU CZ CVJMU JO IJHI IFBE ESBJO QVNQ The high head pump is built into the indoor unit and the condensed water generated during the cooling operation will be drained to the outside The pumping height can ...

Page 9: ...10 638 940 330 998 940 330 998 Outdoor Unit mm 1023 413 730 995 426 1096 995 426 1096 Weight Net Weight Indoor Unit kg 15 5 15 5 19 Outdoor Unit kg 45 64 5 70 Shipping Weight Indoor Unit kg 19 5 19 5 24 Outdoor Unit kg 48 69 5 74 Harness Specifications Indoor Fan Motor DB31 00578B DB31 00578B DB31 00577A Compressor UG4T150LNBEQ UG4T200LNFE4 UG8T300LNBJU Outdoor Fan Motor DB31 00642A DB31 00579A DB...

Page 10: ...940 330 1210 940 330 1210 Outdoor Unit mm 995 426 1388 995 426 1388 995 426 1388 Weight Net Weight Indoor Unit kg 19 19 19 Outdoor Unit kg 88 88 88 Shipping Weight Indoor Unit kg 24 24 24 Outdoor Unit kg 98 98 98 Harness Specifications Indoor Fan Motor DB31 00577A DB31 00577A DB31 00577A Compressor UG5T450FUEJX UG5T450FUEJX UG5T450FUEJX Outdoor Fan Motor DB31 00579A DB31 00579A DB31 00579A Piping ...

Page 11: ...Seal drain ass y DB62 05810A 1 Seal drain ass y DB62 05810F 1 Seal drain ass y DB62 05810G 1 Cap Drain DB63 10355C 3 Essential Offer Outdoor Unit Drain Plug DB67 00806A 1 Rubber Leg DB73 20134A 4 BOLT FLANGE 6011 003975 4 Essential Offer Panel ASSY INSTALLATION MANUAL DB68 03837A 1 CARD WARRNATY DB68 01675A 1 2 3 Specifications of optional items 2 3 1 Accessories ...

Page 12: ...reless remote controller DB93 14643F MR EH00 DB93 14643K MR EC00 1 Optional Batteries for remote controller specification AAA type 4301 000121 2 Remote controller holder DB61 06087A 1 M4 16 screw 6002 000581 2 User s manual DB68 04667A 1 Accessories cont 8JSFMFTT SFNPUF DPOUSPMMFS 3 3 ...

Page 13: ...cont 8JSFE SFNPUF DPOUSPMMFS 83 8 PEF P Item Descriptions PEF P Q TY Remark Wired remote controller DB93 11251F 1 Optional Cable tie DB65 10088B 2 Cable clamp DB65 10074E 3 M4 16 Screw 6002 000474 5 User s manual DB68 03732A 1 Installation guide DB68 03716A 1 ...

Page 14: ...sories cont FOUSBM DPOUSPMMFS PEF P Item Descriptions PEF P Q TY Remark Central controller DB93 03425Q 1 Optional Cable tie DB65 10088B 2 Cable clamp DB65 10074E 5 M4 X 16 Screw 6002 000474 7 User s manual DB68 03736A 1 Installation guide DB68 03721A 1 ...

Page 15: ...ProductSpecifications 2 10 Samsung Electronics 2 3 2 Filter specifications Item Descriptions PEF P Remark Dust filter DB63 03158A Basic Water wash ...

Page 16: ...Samsung Electronics 3 1 Item Remarks SCREW DRIVER Adjustable Wrench 8mm 10mm 13mm M6 M8 Hex Wrench Q FDFTTBSZ 5PPMT 3 Disassembly and Reassembly ...

Page 17: ...terior to open the Grille 2 Push up the green knob in the Open direction and detach the white link from the panel Detach the safety clip 3 Remove the 2 fixed screws to remove the Control Box Cover Use Screw Driver 4 Remove the Remocon Receiver and Blade Connector Wire from the PBA 3EA 5 Push the 4 panel corners and cover downwards to remove it 3 1 Indoor unit ...

Page 18: ...angers at both sides of the panel inwards and rotate them 90 degrees to remove it from the indoor unit s Hock Remove the panel from the indoor unit 2 Control Box 1 Disconnect the Connector Wire that is connected to the indoor unit s PBA from the PBA 2 Unscrew the 2 fixed screws on both sides of the Control Box and disassemble the Control Box from the indoor unit Use Screw Driver ...

Page 19: ...nscrew the screw fixed on the Bell Mouth Use Screw Driver 2 Push the Bell Mouth in the direction opposite to where it s installed on the Control Box to remove it 4 Drain Pan 1 Unscrew the screws on the 4 corners of the indoor unit Use Screw Driver 2 Remove the Drain Pan from the indoor unit ...

Page 20: ... drainage hose from the Drain Pump Use Screw Driver 2 Remove the 2 screws and take the Drain Hose out from the indoor unit to disassemble the transparent Drain Hose fixed on the side of the indoor unit Use Screw Driver 6 Evap Temperature Sensor 1 Use your hand to remove the temperature sensor attached to the Evap Pipe along with the fixing clip ...

Page 21: ... three hexangular nuts on the Motor counterclockwise to remove the nuts Take the Motor Wires attached to these three locations out with your hands prior to removing the Motor 8 Evaporator 1 Remove the screws of the 2 Steel Holder Evaps that are used to fix the Heat Exchanger and then remove it Use Screw Driver 2 Remove the 2 fixing screws of the Partition Evap at the Heat Exchanger s In Out Pipe U...

Page 22: ...ly Samsung Electronics 3 7 P Parts Procedure Remark 3 Remove the screw of the Cover Pipe that is used to fix the In Out Pipe Remove the In Out Pipe Use Screw Driver 4 Remove the Heat Exchanger from the indoor unit s cabinet ...

Page 23: ... 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 cabniet side edges and to detach the cover top 3 Loosen 7 screwsfixed to disassemble cabi front and detach it Q 9 3 2 Outdoor Unit ...

Page 24: ...assembly Samsung Electronics 3 9 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 left ...

Page 25: ... Electronics 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 betwwen assy control out and motor 3 loosen 2 pcs bracket motor screw and detach it ...

Page 26: ...ssen fixing 1 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 Looosen fixing screw on both side 3 disaessembly the pipes in both inlet and outlet with welding torch 4 detach the heat exchanger ...

Page 27: ...DisassemblyandReassembly 3 12 Samsung Electronics 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 ...

Page 28: ... off the Power before disassembly 1 Unscrew and remove two mounting 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 the Cabinet Install Front Use Screw Driver Q 9 9 ...

Page 29: ...rocedure Remark 4 Guard Cond 1 Pull the sensor from Guard Cond 2 Unscrew and remove 4 screws in the Guard Cond Use Screw Driver 5 Cabi Back RH 1 Pull the sensor from Cabi Back RH 2 Unscrew and remove 4 screws on each side of the Cabinet Back RH Use Screw Driver ...

Page 30: ...msung Electronics 3 15 P Parts Procedure Remark 6 Cabi Install Back 1 Unscrew and remove 1 screw in the Cabinet Install Back Use Screw Driver 7 Cabi Front LF 1 Unscrew and remove 10 screws in the Cabinet Front LF Use Screw Driver ...

Page 31: ...DisassemblyandReassembly 3 16 Samsung Electronics P Parts Procedure Remark 8 Fan 1 Turn 2 mounting nuts as shown in the picture and remove it Use Adjustable Wrench ...

Page 32: ...Procedure Remark 9 Motor 1 Separate the Fan Propeller 2 Unscrew and remove the 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 ...

Page 33: ...sembly 3 18 Samsung Electronics P Parts Procedure Remark 11 Control Out 1 Disconnect 4 Connecters From Ass y Control Out 2 Unscrew and remove 1 mounting screw in Control Out Use Screw Driver 3 Separate Ass y Control Out ...

Page 34: ... Unscrew and remove 2mounting screws in muffler 3 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 4 Separate the pipe from the Entrance Exit using a welder When removing the compressor Heat Exchanger and Pipe purge the Coolant inside the Compressor completely and remove the pipe with a welding flame ...

Page 35: ...13 Ass y EEV Valve 1 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 2 Separate the pipe from the Entrance Exit using a welder 14 Compressor 1 Unscrew and remove 1 mounting nut in Cover Terminal Use Adjustable Wrench 2 Separate the Compressor Felt Sound ...

Page 36: ...Parts Procedure Remark 3 As shown in the picture unscrew and remove 3 mounting screws from the bottom Use Adjustable Wrench 15 Cond Out 1 Unscrew and remove 3 screws on each side of the Assy Cond Out Use Screw Driver 2 Separate the Compressor Felt Sound ...

Page 37: ...o mounting 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 the Cabinet Install Front Use Screw Driver 4 Guard Cond 1 Pull the sensor from Guard Cond 2 Unscrew and remove 4 screws in the Guard Cond Use Screw Driver Q 9 9 9 ...

Page 38: ... 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 Cabi Front LF 1 Unscrew and remove 10 screws in the Cabinet Front LF Use Screw Driver 8 Fan 1 Turn 2 mounting nuts as shown in the picture and remove it Use Adjustable Wrench ...

Page 39: ...otor 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 Control Out 1 Disconnect 4 Connecters From Ass y Control Out 2 Unscrew and remove 1 mounting screw in Control Out Use Screw Driver 3 Separate Ass y Control Out ...

Page 40: ...lve Use Screw Driver 3 Separate the pipe from the Entrance Exit using a welder When removing the compres sor Heat Exchanger and Pipe purge the Coolant inside the Compressor completely and remove the pipe with a welding flame 13 Assy EEV Valve 1 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 2 Separate the pipe from the Entrance Exit using a welder ...

Page 41: ...ing procedure is the same for other models After entering the option setting status select the option as listed below Step 1 Entering mode for option setting 1 Remove batteries from the remote controller 2 Insert the batteries while you press Temperature and Temperature button at the same time 3 Check if you have entered the option setting status t 0QUJPO TFUUJOH JT BWBJMBCMF GSPN 4 UP 4 t 4 4 4 4...

Page 42: ...tton toenterSEG8value Eachtimeyoupressthebutton p p p willbeselectedinrotation SEG6 SEG8 6 SettingFanmode PressModebuttontobechangedtoFANmodeintheONstatus 7 SettingSEG9 SEG10option PressLowFanbutton toenterSEG9value PressHighFanbutton toenterSEG10value Eachtimeyoupressthebutton p p p willbeselectedinrotation SEG9 SEG10 8 SettingHeatmode PressModebuttontobechangedtoHEATmodeintheONstatus 9 SettingSE...

Page 43: ...an button to enter SEG18 value Press High Fan button to enter SEG20 value Each time you press the button p p p will be selected in rotation SEG18 SEG20 16 Setting Fan mode Press Mode button to be change to Fan mode in the OFF status 17 Setting SEG21 SEG22 option Press Low Fan button to enter SEG21 value Press High Fan button to enter SEG22 value Each time you press the button p p p will be selecte...

Page 44: ...t Step 4 Input option Press the operation button with the direction of remote control for set For the correct option setting you must input the option twice Step 5 Check operation 1 Reset the indoor unit by pressing the RESET button of indoor unit or outdoor unit 2 Take the batteries out of the remote controller and insert them again and then press the operation button ...

Page 45: ... Using the వ buttons select a sub menu number and press the button to enter data setting screen Ź When you enter the setting stage the current setting will be displayed Ź Refer to the chart for data settings Ź Using the వ buttons select the settings Press the button to move to the next setting Ź Press the Set button to save the settings and exit to the sub menu setting screen Ź Press the TD button...

Page 46: ... set to 0 1WAY 2WAY 4WAY DUCT MODEL Number of hours using filter SEG18 will be set to 1000hour even if the SEG18 is set to exept for 2 or 6 If you input a number other than 0 4 of the individual control of the indoor unit SEG20 the indoor is set as indoor 1 4WAY MODEL Even when the value of Heating setting compensation SEG21 is set to 0 it wil be recognized as 5 C 4 1 4 Setting an indoor unit inst...

Page 47: ...ails 1 0 Disuse 0 Default 0 slave 1 Use 1 Noise reduction operation mode 1 master 2 Use 3minute delay Option SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 Explanation PAGE Useofexternalcontrol Settingtheoutputof externalcontrol S Plasmaion Buzzercontrol Numberofhoursusingfilter Remote Controller Display Indication andDetails Indication Details Indication Details Indication Details Indication Details Indicat...

Page 48: ...de you want to change Thetens digitof anoptionSEG youwillchange The unit digit of an option SEG you will change Thechanged value Indication 0 D 2 1 7 1 Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Explanation PAGE MODE The option mode you want to change Thetens digitofan optionSEGyouwill change The unit digit of an option SEG you will change Thechangedvalue Remote Controller Display Indication andDetails ...

Page 49: ... 0 1 4 0 E F 1 9 5 0 E 8 AC036 N4DCH 0 1 4 0 E F 1 9 5 4 3 9 AC042JN4DCH 0 1 4 0 E F 1 9 5 4 4 A AC048JN4DCH 0 1 4 0 E F 1 9 5 4 5 B Model SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Remocon display AC018JN4DCH 2 7 3 4 3 B 3 7 0 0 0 5 AC024 N4DCH 2 7 4 7 5 0 3 7 0 0 0 5 AC030JN4DCH 2 7 5 A 6 4 3 7 0 0 4 5 AC036 N4DCH 2 7 6 4 7 0 3 7 0 0 4 5 AC042JN4DCH 2 7 7 D 8 C 3 7 0...

Page 50: ...1 EEV B Threedigits Twodigits Onedigit step 12 Totalindoorunitcapacity C Twodigits Onedigit Firstdecimal kW 13 Protectioncontrol D 0 Cooling 1 Heating Protectioncontrol 0 noprotectioncontrol 1 freezing 2 non stopdefrosting 3 overload 4 discharge 5 under current Frequencystate 0 Normal 1 Hold 2 Down 3 Up_limit 4 Down_limit 14 Heatproofplatetemperature E Threedigits Twodigits Onedigit 15 S Wcheck F ...

Page 51: ...ons ON OFF K5 Set an auto address Set a manual address K6 Snowdriftpreventioncontrolnotused Snowdriftpreventioncontrolused K7 K7 K8 ON ON Silentcontrolnotused ON OFF SilentcontrolusedStep_1 OFF ON SilentcontrolusedStep_2 OFF OFF SilentcontrolusedStep_3 K8 K9 Autosilentmode Manualsilentmode ...

Page 52: ...PXFS 4BWJOH PEF Mode Display EcoModeLamp Segment1 Segment2 Segment3 Segment4 RED EcoMode BLANK BLANK BLANK BLANK On EcoModeExit PressK3togooutfromtheecomode Atthedrivingsignalortestrun cooling heating oftheuser themodeisreleased Off Eco mode lamp RED ...

Page 53: ...door temperaturesensor Errorofthecondensor temperaturesensor Errorofthedischarge temperaturesensor t IFDL JOEPPS UFNQFSBUVSF sensorconnection t IFDL JOEPPS UFNQFSBUVSF sensor sresistancevalueto seeifit sshort open operation off operation off operation off X X Nocommunication for2minutesbetween indoorandoutdoorunit communicationerrorfor morethan2minutes t IFDL DPOOFDUJPO CFUXFFO indoorandoutdoorhea...

Page 54: ... COND temperature sensor error Check sensor connection status Check sensor location Check sensor resistance Operation Off Outdoor sensor error Inverter Emission temperature sensor error Check sensor connection status Check sensor location Check sensor resistance Operation Off Outdoor sensor error Detection of Indoor Freezing when Comp Stops Check whether the indoor unit air intake is blocked Check...

Page 55: ...ection control error Inverter Current sensor error Check EEPROM DATA Check the normal operation of PCB Operation Off Outdoor unit protection control error Inverter DC LINK voltage sensor error Check the input power connection Check the status of RY21 and R200 in the INVERTER PCB Operation Off Outdoor unit protection control error EEPROM Read Write error Operation Off Outdoor unit protection contro...

Page 56: ...er Normal operation Wired remote controller error Communication error between the Master and Slave wired remote controllers Check the option switch for defining the Master and Slave only one Master and one Slave can exist Normal operation Wired remote controller error COM1 COM2 cross installation error Check that wired remote controller is connected to the COM2 terminal of the indoor unit Normal o...

Page 57: ...ure sensor disconnected from 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 sensor connector from the PCB and measure the resistance between two terminals 4 3 Troubleshooting by symptoms 4 3 1 Indoor temperature sensor open short Current temperature C Re...

Page 58: ... temperature sensor replace Remove the indoor heat exchanger temperature sensor connector from the PCB and measure the resistance between two terminals Indoor unit display Operation Defrost X Timer X Filter Symptom Short or open circuit of indoor heat exchanger temperature sensor Failure Short or open circuit in the corresponding sensor 4 3 2 Indoor heat exchanger temperature sensor open short Cur...

Page 59: ...PBA OEPPS FSSPS Check the normal operation No Is the motor connector CN73 disconnected from the PCB Connect the connector to PCB Yes No Does the motor rotates when operating Motor ᐯ ᐱ Is voltage of DC 0V DC 6V displayed Check the PCB and replace it Is the RPM of motor less than 120 Yes During operation or Operation at the beginning E154 is displayed No Check the motor and replace it Yes Ex Dependi...

Page 60: ... ON In this case is the voltage waveform between the lines square wave with amplitude over 0 7V as shown in the following picture Check the communication cable and replace the indoor unit PCB Remove the communication cable connecting the outdoor unit to indoor unit and measure the signal on LINE 2 of the outdoor unit with a scope Reconnect the cable connecting the outdoor unit to the indoor unit a...

Page 61: ...ance open circuit Is the water 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 decreasing Reset the indoor unit power and check the operation of the drain pump it vibrates when operating Normal operation Replace the indoor unit PCB Reassemble the floating se...

Page 62: ...Failure EEPROM component failure EEPROM circuit parts missing damaged soldering failure 130 DJSDVJU GBJMVSF Power on E162 occurs Replace EEPROM PBA Yes Yes No No Are EEPROM SUM PBA correctly assembled Is there a problem in soldering failure or short of between EEPROM PIN Reassemble EEPROM PBA Remove short or soldering failure ...

Page 63: ...0 wire Check the connection of the terminal block Temperature rise by untightening a screw Termal Fuse open 5IFSNBM VTF 0QFO SSPS E198 occurs Measure both ends of connector connected the TERMINAL BLOCK Replace the MAIN PBA No No Yes Is the CN140 connector of PCB between wire correctly connected Paragraph Short Has the connector ends Re operation after the connector ...

Page 64: ...n on the power Check all power supply connections 1 Check the power of the terminal box 3 phase electric power and wire assembling 2 If the connection is made in the power lines extension of the power line check whether the lines are firmly connected 3 Check the circuit breaker due to over current or leakage Check whether several units are connected to one breaker Check the connection of the power...

Page 65: ...here a fault with a fuse Short Normal Open Fault 2 When the bridge diode is measured with output voltage does the voltage exceed 290 Vdc 3 Is the power supply voltage 12V 4 Is there a fault with a fuse of EMI PBA Short Normal Open Fault Fan Motor Connector After separating and resetting the power check everything is normal Separate the connector after turning off the power of the terminal box When...

Page 66: ...he power of the terminal box 3 phase electric power and wire assembling 2 If the connection is made in the power lines extension of the power line check whether the lines are firmly connected 3 Check the circuit breaker due to over current or leakage Check whether several units are connected to one breaker Check the connection of the power supply to the terminal block 1 Check wires are correctly c...

Page 67: ...al Open Fault 2 When the bridge diode is measured with output voltage does the voltage exceed 290 Vdc 3 Is the power supply voltage 12V 4 Is there a fault with a fuse of EMI PBA Short Normal Open Fault Fan Motor Connector After separating and resetting the power check everything is normal Separate the connector after turning off the power to the terminal box When detaching and attaching the connec...

Page 68: ... explained above No Yes Replace the main PBA of the outdoor unit No Yes 30 seconds after power off power on RC6666HXG6 RC145DHXH6 AC100FCA6GH Series RC090 100 125 1406HXE6 RC1006HXB6 AC666FCA EH RC072DHXB6 Reconnect the communication connector No Yes Continued Check the communication circuit of the main PBA of the outdoor unit 1 Is there a problem in communication IC 2 Is there a fault in TVS Diod...

Page 69: ...art CommunicationICMeasuringPart CircuitDiagram ExampleofMeasuring CommunicationIC ExampleofMeasuring TVS Diode Location Measuring Point 5 GND 6 CommunicationA 7 CommunicationB 8 Vcc CommunicationICMeasuring Port Steady stateMeasuringValue Remark COM1 RED 6 5 0 9kΩ 1 2kΩ Measuringafterseparatingthecommunication connection 7 5 0 9kΩ 1 2kΩ 8 5 4 7Vdc 5 3Vdc TVS DiodeMeasuring Steady stateMeasuringVa...

Page 70: ...f power on ReplacetheoutdoorunitinverterormainPBA 1 IfE203Errorto7 segmentofthemainPBAoftheoutdoorunitisdisplayed replace theinverterPBAandthenthemainPBAoftheoutdoorunitisnormal 2 IfRed ON Green OFF andYELLOW BlinkaredisplayedintheLEDdisplayofthe outdoorunitinverter andthereisnoindicationin7 segmentofthemainPBAofthe outdoorunit replacethemainPBA ױ TheoutdoorunitinverterPBAisnormal RC666HXE6 RC100D...

Page 71: ...COND sensor outdoorunittemperaturesensormeasuringresistancevaluebytemperature E231 E221 Example OLPsensor dischargetemperaturesensormeasuringresistancevaluebytemperature E320 E251 Current temperature C Resistance KΩ Current temperature C Resistance KΩ 70 4 20 10 60 5 10 20 50 6 0 30 40 7 10 40 30 8 Current temperature C Resistance KΩ Current temperature C Resistance KΩ 80 40 30 180 70 50 20 220 60...

Page 72: ...ommand voltage 5Vdc Check after power OFF After power is on check everything is normal ױ End the service Connect the connections of the outdoor unit which has two outdoor fans Connect the connections of the outdoor unit which has one outdoor fan 1 3DC_LinkVoltage betweenDC_linkandGND 280Vdc 360Vdc 4 3DC_Linkvoltage betweenDC15VandGND 14Vdc 16Vdc 5 3FANcommandvoltage betweenfancontrolandGND 2Vdc 5V...

Page 73: ...sistance values of the compressor are different ױ Power is on ױ Check the normal startup ױ End the service 2 Wire reassembling If there is a fault in the connection of the wires of the compressor ױ Power is on ױ Check the normal startup ױ End the service 3 Compressor replacement Serious abnormal noise Metallic scraping or grinding noise serious vibration No Check the compressor and the state of th...

Page 74: ...VQ BOE 3PUBUJPO SSPS PEF Continued Continued After replacing the inverter PBA of the outdoor unit check normal startup ױ End the service W V U W V U W V U W V U ఐ E461 E467 Error related EMI outdoor unit Main Indoor unit Main PBA do not replace ĺ This error is related to the compressor and Inverter PBA Not related to the above PBA ఐ Because it is an error regarding the inverter PBA it is not relat...

Page 75: ...the space Check the indoor unit installation environment ױ Check everything is normal at re start ױ End the service 1 Remove the obstacles of the inlet and secure the space 2 Remove the obstacles of the outlet and secure the space No Has the outdoor unit been correctly installed After replacing the inverter PBA of the outdoor unit check normal startup ױ End the service Yes No Has the indoor unit b...

Page 76: ...t re start ױ End the service 1 Check the wire disconnection of the inverter PBA of the outdoor unit 2 Remove the obstacles of the suction pipes of the outdoor unit and secure the space Check the indoor unit installation environment ױ Check everything is normal at re start ױ End the service 1 Remove the obstacles of the inlet and secure the space 2 Remove the obstacles of the outlet and secure the ...

Page 77: ...up ױ End the service 2 Wire reassembling If there is a fault in the connection of the wires of the compressor ױ Power is on ױ Check the normal startup ױ End the service 3 Compressor replacement Serious abnormal noise Metallic scraping or grinding noise serious vibration No Check the compressor 1 Do the inter phase resistance values of the compressor coincide U V U W V W 2 Are the wires on the comp...

Page 78: ...r correctly assembled in colors U RED V BLU and W YEL ױ Check the disconnections of PBA and COMP 2 Is the terminal in the compressor wire housing firmly assembled 3 Is there a fault of part of the compressor wires in deviation or secession Replace the PCB Continued Yes ఐ E464 Error related EMI outdoor unit Main Indoor unit Main PBA do not replace ĺ This error is related to the compressor and Inver...

Page 79: ...re normally Reactor and the outdoor unit Inverter PBA ĺ Check the normal operation ĺ Shut down the service 2 Replace the reactor ĺ Check the normal operation ĺ Shut down the service No Power OFF RC6666HXG6 RC145DHXH6 AC100FCA6GH Series Confirmation Matters RC6666HXE6 RC100DHXB6 AC666FCA666 Common Fault in connection of the jointed power cable RC6666HXG6 RC145DHXH6 AC100FCA6GH Confirmation Matters ...

Page 80: ...service Replace the fuse Yes Yes No After replacing the inverter PBA of the outdoor unit check normal startup ױ End the service Check the terminal block and the power terminal box 1 Is the screw of the terminal block firmly assembled 2 Are the power cable of the power terminal box and the terminal firmly assembled Is the fuse of the EMI PBA disconnected RC6666HXG6 RC6666HXH6 AC100FCA6GH RC072DHXB6...

Page 81: ...lacement If the interphase resistance values of the compressor are different ױ Power is on ױ Check the normal startup ױ End the service 2 Wire reassembling If there is any fault in the connection of the wires of the compressor ױ Power is on ױ Check the normal startup ױ End the service 3 Compressor replacement Serious abnormal noise Metallic scraping or grinding noise serious vibration No Yes Re in...

Page 82: ...HF SSPS SSPS PEF Continued Yes Re connect the sensor connector No No Is the indoor EVA sensor correctly connected Yes Charge the refrigerant No Has the refrigerant been charged Replace the inverter PCB Continued Yes Yes Has the service valve been completely opened ...

Page 83: ...mpty and open all the service valves on the gas and liquid pipes Change and connect the pipes immediately and empty the pipes and then open the service valves Check the replacement of the EEV body coil and the refrigerant leaking part After that recharge Check the temperature value through S NET etc and then if there is a fault replace and reconnect No No No No Check the opening of the outdoor uni...

Page 84: ...motoroperatenormally ChecktheoperationofEEV Checkthetemperaturesensoroftheindoorunitheatexchanger Checktheindoorunitinletblocking 7 Outdoorunitcompressordischargingtemperatureprotectioncontrol E416 Checkforlackofrefrigerant Checktheblockingofthesolenoidvalve Checkthemalfunctionoftheexhausttemperaturesensor CheckEEV 8 Errorofimpossibilitytooperateheatingatoutdoortemperatureexceeding30 C E440 Erroro...

Page 85: ...Samsung Electronics 5 1 5 PCB Diagram and Parts List 5 1 Indoor Unit 5 1 1 MAIN PCB 22 1 2 3 4 5 7 8 9 10 11 6 12 13 15 16 17 18 19 20 14 21 23 ...

Page 86: ...2 D 10 COM2 TXD 11 COM2 RXD 12 GND 1 DC12V 2 VENTILATOR SIGNAL OUTPUT GND 1 DC12V 2 HUMAN SENSING SENSOR COMM TXD 3 HUMAN SENSING SENSOR COMM RXD 4 GND 1 INDOOR THERMISTOR 2 GND 1 4 EEV SIGNAL OUTPUT 5 DC12V 6 DC12V 1 DC12V 2 5 LOUVERSIGNALOUTPUT 1 DC12V 2 5 LOUVERSIGNALOUTPUT 6 DC12V 7 10 LOUVERSIGNALOUTPUT 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 1 GND 2 GND 3 SPI SIGNAL OUTPUT DC12V 1 POWER L 2 POWER N...

Page 87: ...PCB Diagram and Parts List Samsung Electronics 5 3 1 DC12V 2 6 LED Control Signal 7 Not used 8 Remocon Signal Out 9 Not used 10 Remocon Signal In 12 Vcc 13 Not used CN01 DISPLAY 5 1 2 Panel PCB 1 ...

Page 88: ... communication connection 15 SMPS PCB connection DC5V 12V 5 N A 16 Compressor connection U V W 6 EEV control 17 Reactor 7 Out Discharge Cond OLP temp sensor 18 SMPS PCB connection AC220V 8 DRED PBA connection K DRED Demand Response Enabling Device 19 MAIN POWER L 9 Sub display PCB connection Key 7 segment signal 20 EARTH 10 Sub display PCB connection Key solution communication signal 21 Download I...

Page 89: ...g Electronics 5 5 5 2 2 SUB PCB Q AC018JXADCH No Function 1 MODE SELECTOR 2 MAIN PCB connection Key Switch signal 3 MAIN PCB connection Key 7 segment signal 4 MAIN PCB connection DC 5V 12V 5 DC 12V 6 Solution communication 1 2 3 4 5 6 ...

Page 90: ...PCB Diagram and Parts List 5 6 Samsung Electronics 5 2 3 SMPS Q AC018JXADCH No Function 1 DC15V 2 DC5 12V 3 POWER AC220V 3 1 2 ...

Page 91: ...4 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 005096 CN302 COMM OPTION SMW200 05 BLK 13 3711 007069 CN402 HIGH PRESSURE S W B04B XARK 1 RED 14 3711 007325 CN401 LOW PRESSURE S W B04B XARK 1 BLU 15 3711 001038 CN305 COMM INV SMW250 06 WHT 16 3711 000939 CN801 ERROR COMP CHECK SMW25...

Page 92: ...C 5V For S W 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 Reactor A1 B1 Reactor A2 B2 CN50 2PIN RED Communication CN22 Downloader CN21 DAC ENCODER CN91 FAN2 CN90 FAN1 CN71 COMP 2 3 4 6 5 8 7 1 Q AC024 XA CH AC030JXADCH AC036 XA CH AC042JXADCH AC048J...

Page 93: ...am and Parts List Samsung Electronics 5 9 Q AC024 XA CH AC030JXADCH AC036 XA CH AC042JXADCH AC048JXADCH 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 5 2 6 EMI PCB ...

Page 94: ...Samsung Electronics 6 1 6 Wiring Diagram 6 1 Indoor Unit This Document can not be used without Samsung s authorization ...

Page 95: ...6 2 Samsung Electronics 6 2 Outdoor unit This Document can not be used without Samsung s authorization Q AC018JXADCH ...

Page 96: ...Samsung Electronics 6 3 This Document can not be used without Samsung s authorization Q AC024 XA CH AC030JXADCH AC036 XA CH AC042JXADCH AC048JXADCH ...

Page 97: ...D 200 220V 50Hz E E 220 240V 50Hz F F 208 230V 60Hz 3Ф G G 380 415V 50Hz 3Ф H H 380V 60Hz 3Ф J J 460V 60Hz 3Ф K K 220 240V 50 60Hz 1Ф M M 127V 50Hz N N 380 415V 50 60Hz 3Ф Year E 2012 F 2013 G 2014 H 2015 J 2016 Buyer Name Capacity Series C COOLING ONLY R410a H HEAT PUMP R HEAT RECOVERY D COOLING ONLY R22 E HEAT PUMP A Cooling only R134A B Heat Pump N N A H C H 0 H 4 H 8 H J H N H 4 H D H C H H H ...

Page 98: ...eneralTemp CAC S Inv Side LowTemp Q Inv Side TropicalTemp F Inv Top TropicalTemp B Non Inv Side GeneralTemp N Non Inv Side LowTemp R Non Inv Side Tropical Temp Z Non Inv Top Tropical Temp ࣜ 4Way 4 MSP Duct M Ceiling C Power A A 115V 60hz 1Ф B B 220V 60Hz 1Ф C C 208 230V 60Hz D D 200 220V 50Hz E E 220 240V 50Hz F F 208 230V 60Hz 3Ф G G 380 415V 50Hz 3Ф H H 380V 60Hz 3Ф J J 460V 60Hz 3Ф K K 220 240V...

Page 99: ...pe C CST Product classification 1N Standard 1 way CST 1B Large size 1 way 2N 2 WAY 4N 4 WAY 4S MINI 4 WAY 4R Round Panel version 1 2 Korean market use A B Export foreign market use Communication type 1 2 NASA 485 N NASA Color B Black E WINE U White V Ivory Language K Korean C Chinese M 8 Languages E English TYPE A Automatic boarding slide S STANDARD H PREMIUM Global 4 Way Panel Pattern Waffle Stri...

Page 100: ...able International and or domestic law Samsung Electronics Co Ltd January 2015 Printed in Korea Code No AC 00094E_1 GSPN GLOBAL SERVICE PARTNER NETWORK Area Web Site Europe CIS Mideast Africa gspn1 samsungcsportal com Asia gspn2 samsungcsportal com North Latin America gspn3 samsungcsportal com China china samsungportal com ...

Page 101: ...ng from liquid 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 injection coolant purging and indoor outdoor unit connection ACCUMULATOR Accumulator prevents the flow of liquid state coolant into the compressor Liquid state coolant flowing into the compressor...

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Summary of Contents for AC018JN4DCH/AA

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Samsung AC018JN4DCH/AA, Service Manual, Page: 51 / 101

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Summary of Contents for AC018JN4DCH/AA

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