Samsung AR18NSWXCWKNCV Service Manual
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Samsung AR18NSWXCWKNCV Service Manual

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AIR CONDITIONER
SPLIT-TYPE AIR CONDITIONER
INDOOR UNIT
Model Code:
AR18NSWXCWKNCV
AR24NSWXCWKNCV
Basic Code:
CONTENTS
1.Precautions
2. ProduP c t
ations
3. Alignment and Adjustments
4. Disassembly and Reassembly
5. Assy Control
6. Electrical Parts List
7. Wiring Diagram
8. Schematic Diagram
9. Operating Instructions
10. Troubleshooting
11. Block Diagram
12. Reference Sheet
OUTDOOR UNIT
AR18NSWXCWKXCV
AR24NSWXCWKXCV

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  • Page 1 SPLIT-TYPE AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT Model Code: AR18NSWXCWKNCV AR18NSWXCWKXCV AR24NSWXCWKNCV AR24NSWXCWKXCV Basic Code: AIR CONDITIONER CONTENTS 1.Precautions 2. ProduP c t ations 3. Alignment and Adjustments 4. Disassembly and Reassembly 5. Assy Control 6. Electrical Parts List 7. Wiring Diagram 8.

  • Page 2: Table Of Contents

    6. Electrical Parts List ························································································ 6-1 6-1 INDOOR MAIN PCB ························································································ ·················· ·················· ··············· 6-2 OUTDOOR MAIN PBA······································································································································ 7. Wiring Diagram······························································································ 7-1 7-1 Indoor Unit············································································································· · · · · ············································ 7-2 Outdoor Unit ··········································································································· · · · · ········································· Samsung Electronics...
  • Page 3 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 Samsung Electronics...

  • Page 5: Disposing Of The Unit

    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. Max current is measured according to IEC standard for safety. Current is measured according to ISO standard for energy efficiency. Samsung Electronics...
  • Page 6 On those hot sweltering summer days and long restless nights, there is no better escape from the heat than the cool comforts of home. Your new air conditioner brings an end to exhausting hot summer days and lets you rest. Beat the heat with your own air conditioner this summer. Your new air conditioner not only provides maximum cooling power in the summer, but also can be an running cost.
  • Page 9 DB90-07731A DB93-15883S 4301-000121 MANUAL USERS DB68-07625A MANUAL INSTALL DB67-01533A...

  • Page 10: Alignment And Adjustments

    Because the teat mode operate the cool mode by force not related to the set temperature / indoor ● temperature, check whether each subordinate is operated normally or not after completing installation Note and must turn off the power of the air conditioner. Samsung Electronics...

  • Page 13: Setting Option Setup Method

    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 Step 2 Enter the Options Setup mode and select your options asscording to the following procedure. Samsung Electronics...
  • Page 14 ’ ’ Ding’ ’ or ’ ’ Diriring’ ’ is heard and the OPERATION ICON( ) lamp of the display me time, then the input of option is completed. (If the deriving sound isn’t heard, try again pressing the ON/OFF button.) Samsung Electronics...
  • Page 15 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. Samsung Electronics...
  • Page 16 2. If the unit is not working properly or all lamps are continuously orrect option code is set up for its model. Option Items Model SEG 1~24 SEG 25~48 SEG 49~72 AR18NSWXCWKNCV 011825-16EA4B-27343C-3717DC 020000-100000-200001-300000 034246-11262D-200000-300001 AR24NSWXCWKNCV 011825-15EAAD-273D50-3717DC 020000-100000-200001-300000 034649-112C36-200000-300001...
  • Page 18 Remove the Cap Screw as shown on the right side and then remove the screw and separate the Cover Panel. 4) Cover Panel is fixed to body by Hook in center area and side area. Center area Side area Side area HOOK F03,F04 SAMSUNG ELECTRONICS...
  • Page 19 5) Separate the hook after pushing both end of Cover Panel as shown in the figure.(Watch out for the damage of the hook) 6) Raise front part upward obliquely as shown in the figure and then remove the hooks. SAMSUNG ELECTRONICS...
  • Page 20 Assembly of Cover Panel after service end. - Reassembly is in the reverse order of the removal. - Piping and drain hose must be careful not to damage and Progress must be done with both hands. Hook (Side) Hook (Center) Screw Cap Screw SAMSUNG ELECTRONICS...
  • Page 21 4 HOOK Structures. When separate the hook : Use the (-) screw Driver. (-)Screw Driver Insert the hook and then pull the hook as shown on the right side. (Watch out for the damage of the hook) SAMSUNG ELECTRONICS...
  • Page 22 Parts Procedure Remark 9) Remove the Panel Frame from the Main Frame as shown on the right side. 10) Remove the WIFI KIT connector. WIFI KIT connector is located of Panel Front. (For model with WIFI KIT) SAMSUNG ELECTRONICS...
  • Page 23 Humidity wire connector. Caution: When you separate the connector, pull pressing the locking button. 14) Loosen the ground wire. 15) Loosen the remote control PCB wire connector. Caution: When you separate the connector, pull pressing the locking button. SAMSUNG ELECTRONICS...
  • Page 24 16) Take off the CASE-CONTROL from the main frame after loosen the remaining connector. Caution: When you separate the connector, pull pressing the locking button. TRAY DRAIN 17) To detach TRAY-DRAIN from the main frame, pull the bottom of the TRAY- DRAIN towards you. SAMSUNG ELECTRONICS...
  • Page 25 19) Unfasten the screw at the left side. (use + Screw Driver) 20) Unfasten the screw at the right side. (use + Screw Driver) 21) To detach Evaporator from the main frame, pull the bottom of the Evaporator towards you. SAMSUNG ELECTRONICS...
  • Page 26 Remark FAN MOTOR 22) Unfasten the screw. (use + Screw Driver) & CROSS FAN 23) Detach the FAN Motor case. 24) Unfasten the screw a little. (use + Screw Driver) 25) Pull the CROSS-FAN to the left side. SAMSUNG ELECTRONICS...
  • Page 27 - Confirm Seal of backside necessarily after replace of Assy SPI Lamp. - Seal should be close adhesion to SPI Lamp. - Measure as shown on the right side since replace. (If the seal is not close adhesion perfectly : Defectiveness can happen) SAMSUNG ELECTRONICS...

  • Page 28: Disassembly And Reassembly

    1) Unscrew and remove the one screw CONTROL on the ASSY COVER CONTROL. (Use '+' type screw driver) GUARD COND 1) Pull the sensor from Guard Cond. 2) Unscrew and remove the four screws on the GUARD COND. (Use ‘+’type screw driver) Samsung Electronics...
  • Page 29 CABI BACK RH. (Use '+' type screw driver) 2) Pull the sensor from the CABI SIDE RH. CABI FRONT 1) Unscrew and remove the 9 screws on the CABI FRONT. (Use '+' type screw driver) Samsung Electronics...
  • Page 30 2) Unscrew and remove the four motor screws. (Use '+' type screw driver) 3) Disconnect the motor wire from the Ass'y Control Out. BRACKET 1) Unscrew and remove the two screws on the BRACKET MOTOR. (Use '+' type screw driver) Samsung Electronics...
  • Page 31 Disassembly and Reassembly Parts Procedure Remark CONTROL OUT 1) Disconnect the six connectors from the ASSY CONTROL OUT. 2) Unscrew and remove the two screws on the CONTROL OUT. (Use '+' type screw driver) 3) Separate the ASSY CONTROL OUT Samsung Electronics...
  • Page 32 Disassembly and Reassembly Parts Procedure Remark COMPRESSOR 1) Separate the COMPRESSOR FELT SOUND. 2) Unscrew and remove the nut on the COVER TERMINAL. (Use adjustable wrench) 3) Separate the compressor wire. 4) Separate the COMPRESSOR FELT SOUND. Samsung Electronics...
  • Page 33 Disassembly and Reassembly Parts Procedure Remark 5) As shown in the picture, unscrew and bottom. (Use Adjustable Wrench) ASSY COND OUT 1) Unscrew and remove the four screws as shown in the picture. (Use '+' type screw driver) Samsung Electronics...
  • Page 34 1) Unscrew and remove the nine screws on each side of the CABI TOP. (Use '+' type screw driver) CABI INSTALL 1) Unscrew and remove the screw FRONT on the CABI INSTALL FRONT. (Use '+' type screw driver) Samsung Electronics...
  • Page 35 Disassembly and Reassembly Parts Procedure Remark GUARD COND 1) Pull the sensor from Guard Cond. 2) Unscrew and remove the four screws on the GUARD COND. (Use '+' type screw driver) Samsung Electronics...
  • Page 36 Disassembly and Reassembly Parts Procedure Remark CABI BACK RH 1) Pull the sensor from the CABI BACK RH. 2) Unscrew and remove the nine screws on each side the CABI BACK RH. (Use '+' type screw driver) Samsung Electronics...
  • Page 37 Disassembly and Reassembly Parts Procedure Remark CABI INSTALL BACK 1) Unscrew and remove the 8 screws on the CABI FRONT LF. (Use '+' type screw driver) Samsung Electronics...
  • Page 38 Disassembly and Reassembly Parts Procedure Remark Samsung Electronics...
  • Page 39 Disassembly and Reassembly Parts Procedure Remark 1) Turn the two nuts as shown in the picture and remove them. (Use adjustable wrench) Samsung Electronics...
  • Page 40 Disassembly and Reassembly Parts Procedure Remark MOTOR 1) Remove the fan. 2) Unscrew and remove the eight motor screws. (Use '+' type screw driver) 3) Disconnect the motor wire from the Ass'y Control Out. Samsung Electronics...
  • Page 41 Disassembly and Reassembly Parts Procedure Remark BRACKET MOTOR 1) Unscrew and remove the two screws on the BRACKET MOTOR. (Use ‘+’type screw driver) Samsung Electronics...
  • Page 42 Disassembly and Reassembly Parts Procedure Remark CONTROL OUT 1) Disconnect the six connectors form the ASSY Control OUT 2) Unscrew and remove the three screws on the CONTROL OUT. (Use '+' type screw driver) 3) Separate the ASSY CONTROL OUT. Samsung Electronics...
  • Page 43 SERVICE VALVE. (Use '+' type screw driver) 3) Separate the pipe from the Entrance/Exit using a welder. When removing the compressor, heat exchanger and pipe, purge the completely and remove the pipe with a welding flame. Samsung Electronics...
  • Page 44 Remark COMPRESSOR 1) Unscrew and remove the nut on the COVER TERMINAL. (Use adjustable wrench) 2) Separate the compressor wire. 3) Separate the COMPRESSOR FELT SOUND. 4) As shown in the picture, unscrew and bottom. (Use Adjustable Wrench) Samsung Electronics...
  • Page 45 Disassembly and Reassembly Parts Procedure Remark ASSY COND OUT 1) Unscrew remove the two screws on each side of the ASSY COND OUT. (Use '+' type screw driver) Samsung Electronics...

  • Page 46: Eeprom Download

    4-3.EEPROM DOWNLOAD A3050 1) Power off 2) Take off the Cabinet : Check the LED off 3) Connect PC-Download Jig-PBA 4-13...
  • Page 47 F1,F2 (2pin) F1,F2 (2pin) 5) Execute the Universal EEPwriter program 6) Select COM Port and connect 7) Open the file...
  • Page 48 • • • • • • 8) Click the Start button and reset the power...

  • Page 49: Assy Control

    5. ASSY CONTROL 5-1 ASSY KIT CODE DB92-04409L DB90-09507A DB90-07972P DB90-11194A Samsung Electronics...
  • Page 50 COIL CHOKE 1.0mH,2.5A,8.4x3.4,Mn-Zn,4,DIP MAIN,AR9500M,120X98mm,N,220V- DB94-07156A ASSY PCB AUTO 240V,19V,12V,5V,WIND FREE,A-STD#4,BLDC,DISPLAY_ HUM/TEMP,DB92-04101B 0501-000362 Q801 TR-SMALL SIGNAL KSC2328A-Y,NPN,1000mW,TO-92L,TP,160~320 1404-001194 PTC2 THERMISTOR-PTC 39ohm,20%,220/240V,270Vac,1.2A,TP 3601-001765 F701 FUSE-RADIAL LEAD 250V,3.15A,TIME-LAG,Thermoplastic,8.5x8mm HEADER-BOARD TO 3711-005098 CN51 BOX,5P,1R,2MM,STRAIGHT,SN,RED CABLE MAIN,AR9500M,120X98mm,N,220V- DB94-07157A ASSY PCB SMD 240V,19V,12V,5V,WIND FREE,A-STD#4,BLDC,DISPLAY_ HUM/TEMP,DB92-04101B Samsung Electronics...
  • Page 51 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R413 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R502 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R503 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R504 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R505 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R506 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R521 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R522 R-CHIP 10Kohm,5%,1/16W,TP,1005 2007-000148 R523 R-CHIP 10Kohm,5%,1/16W,TP,1005 Samsung Electronics...
  • Page 52 R-CHIP 470Kohm,1%,1/4W,TP,3216 2007-000924 R113 R-CHIP 470Kohm,1%,1/4W,TP,3216 2007-000924 R114 R-CHIP 470Kohm,1%,1/4W,TP,3216 2007-000939 R711 R-CHIP 47Kohm,1%,1/10W,TP,1608 2007-000979 R713 R-CHIP 5.6Kohm,1%,1/10W,TP,1608 2007-001068 R708 R-CHIP 6.8Kohm,1%,1/10W,TP,1608 2007-001313 R404 R-CHIP 330ohm,5%,1/16W,TP,1005 2007-001313 R405 R-CHIP 330ohm,5%,1/16W,TP,1005 2007-001313 R406 R-CHIP 330ohm,5%,1/16W,TP,1005 2007-001313 R410 R-CHIP 330ohm,5%,1/16W,TP,1005 Samsung Electronics...
  • Page 53 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C704 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C710 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C712 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C713 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C802 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C803 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C805 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C806 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C807 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 Samsung Electronics...
  • Page 54 2402-001145 C701 C-AL,SMD 47uF,20%,50V,GP,TP,6.3X7.7mm 2402-001145 C703 C-AL,SMD 47uF,20%,50V,GP,TP,6.3X7.7mm 2802-001211 X501 RESONATOR-CERAMIC 8MHz,0.5%,TP,3.2x1.3x0.9 mm FR-4,2Layer,T1.6,120*98,4,WIND FREE, A-STD#4, BLDC DB41-01362A PCB MAIN PCB MAIN MOTOR, A3050,1Oz,240*197 18K_RAC_Windfree_Inv,STM-1750-OA,HART- DB91-01934A IC04 ASSY MICOM m310,100MQFP,ROM 256KB IC-MICROCON- HART-M310,QFP,100P,20x14mm,8MHz,5V,600mW,- 0903-001864 TROLLER 40to+85C,24KB,256KB,MAIN PBA SOC Samsung Electronics...
  • Page 55 10Kohm,1%,1/10W,TP,1608 2007-000052 R-CHIP 10Kohm,1%,1/10W,TP,1608 2007-000052 R-CHIP 10Kohm,1%,1/10W,TP,1608 2007-000491 R-CHIP 2.2Kohm,1%,1/10W,TP,1608 2007-000869 R-CHIP 4.7Kohm,1%,1/10W,TP,1608 2203-000257 C-CER,CHIP 10nF,10%,50V,X7R,TP,1608 2203-000440 C-CER,CHIP 1nF,10%,50V,X7R,TP,1608 2203-005249 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2203-005249 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 2402-001368 C-AL,SMD 47uF,20%,25V,TP,6.3x4.9mm DB41-01365A PCB DISPLAY PCB DISPLAY FR-4,2Layer,T1.6,64*36,12,WIND FREE, 88DISPLAY, 3LED,1Oz,192*160 Samsung Electronics 6-25...
  • Page 56 5-2 ASSY CONTROL OUT(DB93-16819A)_18K Samsung Electronics...
  • Page 57 5-2 ASSY CONTROL OUT(DB93-15617B)_24K Samsung Electronics...
  • Page 58 (OPTION) HUM/ROOM SENSOR (OPTION1) (OPTION2) Communication error (indoor <-> outdoor) ROOM TH sensor error INDOOR MID, INDOOR IN PIPE-TH sensor error Fan error (indoor) EEPROM error Option error etc. Error Time out Comm. (Inv Micom <-> Main Micom) EEV or Valve Close error-Self diagnosis Out door Fan Error Comp Starting Error IPM Over Current (O.C) Error...
  • Page 59 #3 : TEMP SENSOR #17 : GND #4 : HUMID SENSOR CN71 : AC POWER #18 : Trace2 #5 : EVA_IN_TEMP #1 : POWER #19 : Trace1 #6 : GND #2 : NULL #20 : Trace0 #3 : N Samsung Electronics...
  • Page 60 8- DISPLAY PCB DB92-04106A Display PCB : DB92-04106A CN01 CN04 CN02 CN01 CN02 CN04 DIN/DOUT DIN/DOUT Vout 5VDC SWITCH INPUT 5VDC Vout PWM_LED TEST_RX TEST_TX MODE0 SAMSUNG ELECTRONICS...
  • Page 61 SUB PCB--RECEIVE-DB92-02874A CN61/CN62/CN63 - CN71 - POWER IN CN01 - RECEIVE #1 : GND #2 : Vout #3 : Vcc #4 : S/W CN32 - FJM/NASA CN76 - SMPS DC OUT SMPS DC OUT Samsung Electronics...
  • Page 62 : Good Bad : Ring terminal is connected reversely Bad : Not clamped Screw Bad : In the gap between Ring terminal & Screw Bad : Unused Ring Terminal Samsung Electronics...
  • Page 67 #3 : DC 5V #4 : DC 19V~27V #5 : A GN D CN31 - DO WN L OAD CN42 - HUM SENS OR #1,#2 : DC 12V / GND D OW NLOAD #3, #4 : ROOM/ H UM SENSO R Samsung Electronics...
  • Page 70 8-5 Outdoor PCB INVERTER_18K / 24K...

  • Page 71: Outdoor Pcb

    8-5 Outdoor PCB MAIN...
  • Page 72 8-5 Outdoor PCB INVERTER_24K...

  • Page 73: Wire Connecting The Indoor Unit Terminal Blocks

    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 Samsung Electronics...

  • Page 74: Operating Instructions

    9. Operating Instructions 9-1 Name of Each Part 9-1-1 Indoor Unit The design and shape are subject to change according to the model. Main Parts The actual product may differ slightly from the image depicted below. 01 Air intake 06 WI-FI module 02 Air ter 07 Wind-Free panel 03 Air...

  • Page 75: Wireless Remote Control-Buttons And Display

    9-2 Wireless Remote control-Buttons and Display Set temperature indicator Timer option indicator 03 Operation mode indicator 04 Options indicator Low battery indicator 06 Transmit indicator Fan speed indicator 08 Ionizer indicator 09 Wind-Free indicator Vertical air swing indicator Horizontal air swing indicator Power button Temperature button Timer button...
  • Page 76 AR18NSWXCWKXCV AR24NSWXCWKXCV...

  • Page 77: Troubleshooting

    HEAT mode, and indoor fan and out- Indoor fan and outdoor fan stop operation door fan do not operate intermittently for within 20% intermittently in a HEAT mode. of the total heater operation. Samsung Electronics 10-1...

  • Page 78: Communication Error

    Is the power is normal? Exchange the PBA of no power unit (check the LED Lamp) Exchange the indoor unit PBA. Is the communication error occurred again? Terminate the service. Exchange the outdoor unit PBA. 10-2 Samsung Electronics...
  • Page 79 Is the connection of power cable supply power and measure the voltage of #1-#2 in and communication cable normal? the connector Exchange the indoor PBA Below 0.5V or Over 4.5V? Micom error or connector check Exchange the indoor PBA Samsung Electronics 10-3...
  • Page 80 Is the connection of power cable supply power and measure the voltage of #3-#4 and communication cable normal? and #5-#6 in the connector Exchange the indoor PBA Below 0.5V or Over 4.5V? Micom error or connector check Exchange the indoor PBA 10-4 Samsung Electronics...
  • Page 81 Is the connected louver wire? Does operation start when swing button of the Normal remote control unit pushed? Is the voltage changeable at the pin#2~#5 of CN61, Exchange the PBA CN62, CN63 (louver connector)? Up/Down louver motor is faulty. Samsung Electronics 10-5...
  • Page 82 Is the voltage of CN72 Exchange the Indoor PBA #3-#5 and #3-#6 with in 1Vdc~15Vdc during the operation? PBA problem or Motor problem Change the PBA first and check the operation Exchange the Fan motor 10-6 Samsung Electronics...
  • Page 83 Is the connection of power cable supply power and measure the voltage of and communication cable normal? "(#1-#2)” i n the connector Exchange the Outdoor PBA Below 0.5Vdc or Over 4.5Vdc? Micom error or connector check Exchange the Outdoor PBA Samsung Electronics 10-7...
  • Page 84 Is the connection of power cable p ower and measure the voltage of "(#5-#6)" in the connector and communication cable normal? Exchange the Outdoor PBA Below 0.5Vdc or Over 4.5Vdc? Micom error or connector check Exchange the Outdoor PBA 10-8 Samsung Electronics...
  • Page 85 Is the connection of power cable supply power and measure the voltage of "(#3-#4) "in the connector and communication cable normal? Exchange the Outdoor PBA Below 0.5Vdc or Over 4.5Vdc? Micom error or connector check Exchange the Outdoor PBA Samsung Electronics 10-9...
  • Page 86 Restart after power off Is the discharge over temperature Terminate the service sensor error appeared again? Download the EEPROM data Is the discharge over temperature Terminate the service sensor error appeared again? Exchange the Outdoor PBA Exchanged the Compressor 10-10 Samsung Electronics...
  • Page 87 Is the voltage of "CNP901" #1-#3 over 250Vdc power supply error check Is the voltage of "CNP901" #3-#5 and Exchange the Outdoor PBA #3-#6 with in 1Vdc~15Vdc during the operation? PBA problem or Motor problem rst and check the operation Exchange the Fan motor Samsung Electronics 10-11...
  • Page 88 Is the connection of compressor wire is normal? Connect the comp wire normally Download the EEPROM data Is the restart error occurred again? Terminate the service Is the compressor body and interphase Exchange the Outdoor PBA resistance insulated? Exchange the compressor 10-12 Samsung Electronics...
  • Page 89 Is the connection of compressor wire is normal? Connect the comp wire normally (PBA and Compressor) Is the restart error occurred again? Terminate the service Is the compressor body and Exchange the Outdoor PBA interphase resistance insulated? Exchange the compressor Samsung Electronics 10-13...
  • Page 90 Connect the comp wire normally Is the O.C error occurred again? Terminate the service Is the condition of indoor/outdoor temperature Restart after returning to the normal load normal load? Is the O.C error Terminate the service occurred again? 10-14 Samsung Electronics...
  • Page 91 Is the position of Correct the sensor position or temperature sensor and sensing exchange the sensor value normal? Is the compressor body and interphase resistance Exchange the Outdoor PBA insulated? Exchange the compressor Samsung Electronics 10-15...
  • Page 92 Check the power input Normal range(280Vdc~320Vdc) Is the DC_link sensing voltage("R101") is normal in operation mode? Exchange the Outdoor PBA Normal range (0.2Vdc~4.8Vdc) Exchange the Outdoor PBA Is the reactor insulation damaged? Exchange the Reactor 10-16 Samsung Electronics...
  • Page 93 Start the operation (cooling mode or heating mode) Is the DC_link sensing voltage("B") is normal in operation mode? Exchange the Outdoor PBA Normal range (0.2Vdc~4.8Vdc) Exchange the Outdoor PBA Is the reactor insulation damaged? Exchange the Reactor Samsung Electronics 10-17...
  • Page 94 Is the the input voltage is nomal? Check the input power in the powercord. Normal range(180Vac ~ 270Vac) Rest Start the operation (cooling mode or heating mode) Is the DC_link voltage ("CE101,CE102,CE103") is normal in operation mode? Check the input power Normal range(280Vdc~320Vdc) 10-18 Samsung Electronics...
  • Page 95 Is the DC_link sensing voltage("R105")is normal in operation mode? Exchange the Outdoor PBA Normal range (0.2Vdc~4.0Vdc) Exchange the Outdoor PBA Is the reactor insulation damaged? Exchange the Reactor Samsung Electronics 10-19...
  • Page 96 Is the position of Correct the sensor position or temperature sensor and the sensing exchange the sensor value normal? Is the connection cable for the compressor and power Correct the cable connection terminal normal? Exchange the Outdoor PBA 10-20 Samsung Electronics...
  • Page 97 3) Is there no short or open around "IC451" ? 2. Troubleshooting procedure Rest Is the PFC shunt and IPM Exchange the Outdoor PBA shunt resistance value correct? Is the current sensor error appeared again? Terminate the service Exchange the Outdoor PBA Samsung Electronics 10-21...
  • Page 98 4) Is the cover assembly in control-box normal? 2. Troubleshooting procedure Restart after power off. Are there screws in PBA-heatsink? Fastening the screw (4 screws) Check the fan connection Is the fan operation normal? Change the Fan motor Exchange the Outdoor PBA 10-22 Samsung Electronics...
  • Page 99 Is the Comp Vlimit error occurred again? Terminate the service Is the condition of indoor/outdoor temperature Restart after returning to the normal load normal load? Is the O.C error Terminate the occurred again? service Samsung Electronics 10-23...
  • Page 100 Is the position of Correct the sensor position or temperature sensor and sensing exchange the sensor value normal? Is the compressor body and interphase resistance Exchange the Outdoor PBA insulated? Exchange the compressor 10-24 Samsung Electronics...
  • Page 101 3) Did you download or insert EEPROM IC, after changing outdoor PBA? 2. Troubleshooting procedure MODEL "A" DB92-02866A CN501 DB92-02867A CN202 power offand download EEPROM data (or. Insert the service EEPROM IC) Restart after power off Terminate the service Is the error appeared again? Exchange the Outdoor PBA Samsung Electronics 10-25...
  • Page 102 * Heating mode * * Cooling mode * Is the outdoor temperature over 40 or Is the outdoor temperature under -7 under -30 ? The temperature condition is too poor to operate. Wait until temperature is changed 10-26 Samsung Electronics...
  • Page 103 Terminate the service. Check the EEV valve operation. Is the EEV valve connection normal? Connect the EEV valve. Is the EEV valve is operation? Check the sound of EEV valve Change the EEV valve. after power on. Samsung Electronics 10-27...
  • Page 104 Check the pipe crack. Is the pressure of refrigerant normal? Fill up the refrigerant. Exchange the Indoor PBA Exchange the Outdoor PBA 10-28 Samsung Electronics...
  • Page 105 Exchange the Main PBA Restart after power o . Is the power normal? Check the power source. Is AC power is normal for SMPS? Exchange the Main PBA CN150 : 220Vac~240Vac Check SMPS wire connection Exchange the PBA Samsung Electronics 10-29...
  • Page 106 MAIN 12V(CE175) : 11Vdc ~ 13Vdc Is the SMPS is normal? Exchange the SMPS PBA MAIN 18V(CE170) : 17Vdc ~19Vdc Is the SMPS is normal? Exchange the SMPS PBA MAIN 5V(CE174) : 4.5V ~ 5.5Vdc Exchange the PBA Samsung Electronics 10-30...
  • Page 107 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 10-31 Samsung Electronics...
  • Page 108 Is the EEV valve is operation? Change the EEV valve. Check the sound of EEV valve after power on. Check the pipe crack. Is the pressure of refrigerant normal? Fill up the refrigerant. Exchange the Indoor PBA Exchange the Outdoor PBA Samsung Electronics 10-32...
  • Page 109 - Discharge temperature and the indoor [Execute the troubleshooting] temperature measurements c Check the refrigerant leaks. that the di erence is more than 10 . Check the PCB Relay. - Fill up perfectly refrigerant after re-vacuum. Execute the related trouble- shooting. 10-33 Samsung Electronics...
  • Page 115 10th 11th 12th 13th 14th Project Capacity Sell Feature Series Color Export Unit Item Reference 3TH 4TH Item ITEM Item Export 12Year INVERTER HP Export 13Year INVERTER CO Export 14Year Export 15Year Export 16Year 9TH DIGIT Item1 Export 1st MODEL A Export The virus doctor (The India / Latin America A / PAC K besides) S Export Export NO virus doctor (the India / Latin America A / PAC K besides)

  • Page 116: Low Refrigerant Pressure Distribution

    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 AR18NSWSPWK/CV AR24NSWSPWK/CV Samsung Electronics 12-2...
  • Page 121 Opening the panel Tightly grab top of the front panel and pull it down to open. Then slightly lift the panel up. and slide it down. Open the panel and put the Air filter out. Clean the Air filter with a vacuum cleaner or soft brush. If dust is too heavy, rinse it with running water.
  • Page 126 12-7-3 POWER SUPPLY Working Voltage 176V ~ 264V Within a 3% Deviation from Each Voltage at the Main Terminal of Voltage Imbalance Outdoor Unit Starting Voltage Higher than 80% of the Rated Voltage 12-7-4 WORKING RANGE Applicable models: AR18NSWSPWKNCV AR24NSWSPWKNCV -10 -5 10 15 20 25 30 35 40 -10 -5...

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