Samsung AQV12NSA Service Manual
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Samsung AQV12NSA Service Manual

Samsung AQV12NSA Service Manual

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AIR CONDITIONER
AQV09FCN, AQV12FCN, AQV09NSAN,AQV12NSAN
AQV09FCX, AQV12FCX, AQV09NSAX,AQV12NSAX
Refer to the service manual in the GSPN(see the rear cover) for the more information.
SPLIT-TYPE AIR CONDITIONER
INDOOR UNIT
Basic : AQV12NSA
Model : AQV09NSB
AQV12NSB
Model Code : AQV09NSBN
AQV12NSBN
THE FEATURE OF PRODUCT
High Energy Efficiency BLDC
Air Conditioner
Simple Flat Grille Design
good'sleep Mode
: good'sleep Mode can help you sleep quickly and
soundly and wake up refreshed.
Multi Functional Cleaning System
: Silver Nano Health System and Deodorizing/
Catechin Filter are adopted.
Silence Mode
: When you use the "Silence Mode", you can
experience extremely quiet operation of your
air conditioner.
OUTDOOR UNIT
AQV09NSBX
AQV12NSBX

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  • Page 1 All manuals and user guides at all-guides.com SPLIT-TYPE AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT Basic : AQV12NSA Model : AQV09NSB AQV12NSB Model Code : AQV09NSBN AQV09NSBX AQV12NSBN AQV12NSBX AIR CONDITIONER THE FEATURE OF PRODUCT High Energy Efficiency BLDC  Air Conditioner Simple Flat Grille Design ...

  • Page 2: Table Of Contents

    5-3 Ass’y Control In ..........................5-4 Ass’y Control Out ..........................16. Electrical Parts List ........................17. Wiring Diagram ..........................7-1 Indoor Unit ............................7-2 Outdoor Unit ............................ 18. Schematic Diagram ........................8-1 Indoor Unit ............................8-2 Outdoor Unit ............................ Samsung Electronics...
  • Page 3 14-2 Low Refrigerant Pressure Distribution 14-2 ..................14-3 Pressure & Capacity mark 14-3 ......................14-4 Q & A for Non-trouble 14-4 ........................14-5 Cleaning/Filter Change 14-7 ......................... 14-6 Installation 14-9 ............................14-7 Installation Diagram of Indoor Unit and Outdoor Unit 14-10 ............Samsung Electronics...

  • Page 4: Precautions

    Do not place a cloth or other materials over it.  Remove the batteries if you don’t use the remote control for a long time. (If applicable)  Use the remote control within 7 meters from the indoor unit. (If applicable) Samsung Electronics...

  • Page 5: Disposing Of The Unit

     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: Product Specifications

    Mode can help you sleep quickly and soundly and wake up refreshed.  Multi functional cleaning system With Silver Nano Health System and Deodorizing/Catechin Filters makes your room more refreshed.  Silence Mode When you use the “Silence Mode”, you can experience extremely quiet operation of your air conditioner. Samsung Electronics...

  • Page 7: Product Specifications

    All manuals and user guides at all-guides.com 2-2 Product Specifications AQV09NSA/AQV09FC AQV12NSA/AQV12FC Model Item Indoor Unit Outdoor Unit Indoor Unit Outdoor Unit Type Wall-mounted Wall-mounted Cooling 0.99 / 2.50 / 3.20 0.99 / 3.30 / 3.80 Capacity (Low / Std / Max) Heating 1.20 / 3.30 / 4.20...

  • Page 8: The Comparative Specifications Of Product

    720 x 548 x 265(mm³) Indoor Unit 43dB↓ 43dB↓ Noise Outdoor Unit 53dB↓ 53dB↓ Silver Nano Evaporator Silver Nano Evaporator Air Purifying System Filter Catechin Filter Catechin Filter Deodorizing Fiter Deodorizing Fiter Indoor Display Three Color LED Display Three Color LED Display Samsung Electronics...

  • Page 9: Accessory And Option Specifications

    2-4 Accessory and Option Specifications 2-4-1 Accessories Item Descriptions Code-No. Q'TY Remark Ass'y Plate Hanger DB7-02851B Remote Control DB93-03170S Batteries for Remote Control DB47-90024A Indoor Unit User’s Manual DB98-28490A Installation Manual DB98-28492A DB93-01549F (Europe) 3-wire Power Cable DB93-02431A (Australia) Samsung Electronics...
  • Page 10 Remark DB39-01092B 4-wire Assembly Cable (Only Australia) Outdoor Drain Plug DB67-20011A Unit Rubber Leg DB73-00182A Assembly Pipe, ø6.35mm DB96-10453B Assembly Pipe, ø9.52mm DB96-10453F Accessory PE T3 Foam Tube Insulation DB72-50165A Vinyl Tape, Width 50mm DB72-00459A Drain Plug DB67-20011A Samsung Electronics...
  • Page 11 Operating Instructions and Installation Product Specifications Accessories(cont.) Item Descriptions Code-No. Q'TY Remark Rubber Leg DB73-00182A Pipe Clamps A DB39-20224A Pipe Clamps B DB39-20224B Accessory Cement Nail M4x16 Tapping Screws 6002-000215 Drain Hose, length 2m DB62-00487A Putty 100g DB98-10568A Samsung Electronics...

  • Page 12: Alignment And Adjustments

    • Because the Test 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 and must turn off the power of the air conditioner. Samsung Electronics...

  • Page 13: Indoor Display Error And Check Method

    Option error ◑ ◑ ◑ Option Setting (option wasn’t set up or option data error) Remote Control on/off ◑ ◑ Outdoor unit error Outdoor Unit Power Reset ● : Lamp on, : Lamp off, ◑ : Lamp blink Samsung Electronics...

  • Page 14: Outdoor Led Error Display And Check Method

    ● Power ON reset(1sec) ◎ ○ ○ Capacity miss match ○ ◎ ◎ Test Operation at Cooling Mode ◎ ◎ ◎ Test Operation at Heating Mode ● : LED ON, ○ : LED OFF, ◎ : LED BLINK Samsung Electronics...

  • Page 15: Setting Option Setup Method

    Push the button to set the display panel to . Every time you push the button, the display panel reads    . . .        repeatedly. Samsung Electronics...
  • Page 16 If all lamps of indoor unit are flickering, Plug out, plug in power plug again and press ON/OFF key to retry. If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code is set up for its model. Samsung Electronics...
  • Page 17 All manuals and user guides at all-guides.com Operating Instructions and Installation Alignment and Adjustments OPTION ITEMS REMOCON SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 MODEL AQV09NSAN AQV09FCN AQV12NSAN AQV12FCN Samsung Electronics...

  • Page 18: Disassembly And Reassembly

    All manuals and user guides at all-guides.com 4. Disassembly and Reassembly Necessary Tools Item Remark +SCREW DRIVER MONKEY SPANNER Samsung Electronics...

  • Page 19: Indoor Unit

    3) Loosen 1 of the right screw(CCW) and detach the Terminal Cover. (Use +Screw Driver.) 4) Detach the thermistor from the Front Grille. 5) Loosen 2 fixing screws(CCW) of Front Grille. 6) Unlock 3 hooks to fix Panel Front and Tray Drain. (Use +Screw Driver.) Samsung Electronics...
  • Page 20 2) Detach the outdoor unit connection wire from the Terminal Block. 3) Loosen 4 fixing screws(CCW) of Ass'y Control-In. (Use +Screw Driver.) You can disassembly Ass'y Control In without evaporator disassembled. Tray Drain 1) Pull Tray Drain out from the Back Body. Samsung Electronics...
  • Page 21 Evaporator from indoor unit. Fan Motor 1) Loosen the fixing screw(CCW). & (Use +Screw Driver.) Cross Fan 2) Detach the Fan Motor from the Fan. 3) Detach the Fan From the left Holder Bearing. Samsung Electronics...

  • Page 22: Outdoor Unit

    Cabinet Front lower to detach the Cabinet Front. (Use +Screw Driver.) 3) Detach the Cabinet Front like the picture on the right side. 4) Loosen 1 screw(CCW) fixed to assemble Plate Control Out with Cabinet-Side RH. (Use +Screw Driver.) Samsung Electronics...
  • Page 23 5) Loosen 2 fixing screws(CCW) on the rear side of Cabinet-Side RH. (Use +Screw Driver.) 6) Loosen 3 screws(CCW) fixed to assemble Bracket Valve with Cabinet-Side RH. (Use +Screw Driver.) 7) Loosen 2 fixing screws(CCW) of Cabinet Side LF. (Use +Screw Driver.) Samsung Electronics...
  • Page 24 1) Detach the Motor Wire from the PCB of Ass’y Control Out. 2) Detach several connectors from the PCB of Ass’ y Control Out. 3) Detach 2 Connect Wires from Reactor. 4) Loosen 1 screw(CCW) fixed to assemble Ass’y Control Out with Partition. (Use +Screw Driver.) Samsung Electronics...
  • Page 25 2) Detach the Terminal Cover and detach the Connect Comp Wire from Compressor. 3) Disassemble the Felt Comp Sound. 4) Loosen the 3 bolts(CCW) at the bottom of Compressor like the picture on the right side. (Use Monkey Spanner.) Samsung Electronics...
  • Page 26 All manuals and user guides at all-guides.com MEMO Samsung Electronics...

  • Page 27: Exploded Views And Parts List

    5. Exploded Views and Parts List 5-1 Indoor Unit � � � ��� ��� ��� ��� ��� ��� ��� � � ��� � ��� ��� ��� ��� � ��� ��� ��� ��� � ��� ��� ��� ��� ��� ��� � ��� Samsung Electronics...
  • Page 28 PANEL FRONT HIPS DB92-01207B ASS’Y GRILLE AIR INLET(AQV**NSAN) ASS’Y DB92-00848J ASS’Y GRILLE AIR INLET(AQV**FCN) ASS’Y DB90-03094A ASS’Y COVER DISPLAY ASS’Y DB63-01591A GUARD AIR FILTER DB97-02851B ASS’Y PLATE HANGER ASS’Y DB61-01638B HOLDER PIPE DB63-00844D COVER TERMINAL DB93-05083C ASS’Y REMOCON ARH-463 Samsung Electronics...

  • Page 29: Outdoor Unit

    All manuals and user guides at all-guides.com 5-2 Outdoor Unit �� �� �� �� �� �� �� �� �� �� ���� � �� � ���� ���� ���� � � �� ���� ���� �� ���� ���� � �� �� � � � �� � Samsung Electronics...
  • Page 30 ASS’Y VALVE CHECK ASS’Y 21-2 DB62-02283A VALVE SERVICE R410A,SANHUA,1/4” DB93-05534D ASS’Y CONTROL OUT ASS’Y DB93-05534C ASS’Y CONTROL OUT ASS’Y DB71-00090F SCREEN COND BAR P.E.H 100% DB32-00176E THERMISTOR OUT/DIS ASS’Y DB32-00121B THERMISTOR COND ASS’Y DB93-04489A CONNECT WIRE COMP ASS’Y Samsung Electronics...

  • Page 31: Ass'y Control In

    ASS’Y CONNECTOR WIRE FORTE1-PJT,UL1007 26AWG DB93-04487A ASS’Y CONNECTOR WIRE FORTE-PJT,UL1007 28AWG DB32-00020A THERMISTOR-WIRE ASS’Y 103AT,-,-,-20~+100,-,-,-,-,- DB63-00851A COVER-DRAIN SS-PJT,ABS,-,-,-,-,-,NO,SSEC DB73-00242B RUBBER-BAND WW2-P/J,SILICON RUBBER,-,-,-,BLACK,-,-,SSEC,L120xW15xT0.3 DB39-00514B CONNECTOR WIRE EARTH YEL/GRN DB39-00148A PLATE EARTH WIRE YEL/GRN DB93-01549F ASS’Y-POWER CORD MID,E,CB 6001-000725 SCREW-MACHINE TH,+,-,M4,L16,ZPC(WHT),SWRCH18A,UP,- Samsung Electronics...
  • Page 32 All manuals and user guides at all-guides.com MEMO Samsung Electronics...

  • Page 33: Ass'y Control Out

    All manuals and user guides at all-guides.com 5-4 Ass'y Control Out   AQV09NSAX : DB93-05534C A QV12NSAX : DB93-05534D  Samsung Electronics...
  • Page 34 FORTE 12K/9K DB62-02332P SEAL-CASE CONTROL KFR-35GW/WCI 2301-001377 C-FILM,LEAD-OTHER 450V DB91-00309A SCREW-TAPPING M3,20 DB95-01140B TERMINAL BLOCK INV,DAF-3P DB61-00250A HOLDER-WIRE CLAMP 6002-000527 SCREW M4,L10 DB81-00547B INSULATOR-KFR KFR-35(25)GW/GPI 6009-001001 SCREW M4,L8 6001-001054 SCREW M4,L10 DB65-10088D CABLE-TIE L100MM DB98-24813A ASSY Unit gram Samsung Electronics...
  • Page 35 4.7K-J R210,R211,R401,R402,R404,R 409,R503,R602,R604,R610,R6 2007-000078 R-CHIP 1K-J R504 2007-000962 R-CHIP 5.1K-F R101 2007-000290 R-CHIP 100-J R106 2007-000872 R-CHIP 4.7K-J R201,R202,R203,R204,R205,R 2007-000944 R-CHIP 47K-J 206,R207,R208 R407,R408,R411 2007-001068 R-CHIP 6.8K-F R505 2007-000070 R-CHIP R403,R802 2007-000087 R-CHIP 6.8K-J R502 2007-000093 R-CHIP 20K-J Samsung Electronics...
  • Page 36 CBE2220BP F701-1 3601-000263 FUSE-CARTRIDGE 521-3150-401 F702 3601-001209 FUSE-RADIAL LEAD LT-5-010-H YW396-05AV, WHT/ CN72 3711-000262 CONNECTOR-HEADER VH-5A,WHT, 2 4 (CWB) ST11 DB26-00015A TRANS SWITCHING JT1916-01 EARTH DB93-04814A CONNECT WIRE EARTH DB41-00526A PCB MAIN-INDDOR CEM3 DB93-04256B INDOOR SUB PBA AC_COM Samsung Electronics...

  • Page 37: Electrical Parts List

    1nF,10%,50V,Y5P,-,1.9x3.5mm,- CN92 3711-003846 HEADER-BOARD TO CABLE BOX,8P,1R,2mm,ANGLE,SN COOL 0601-000552 ROUND,GRN,3mm,570nm 0401-000005 DIODE-SWITCHING 1N4148,75V,150mA,DO-35,TP 2001-000109 R-CARBON(S) 470ohm,5%,1/2W,AA,TP,2.4x6.4mm 2001-000109 R-CARBON(S) 470ohm,5%,1/2W,AA,TP,2.4x6.4mm RM91 0609-001204 MODULE REMOCON HORIZONTAL,6.5mm,TR SW91 3404-001220 SWITCH-TACT 12V,50mA,160gf,6.1x6.1x5.0mm,SPST TIMER 0601-000552 ROUND,GRN,3mm,570nm TURBO 0601-001373 ROUND,RED,3mm,630nm DB41-00352A PCB SUB WW1-P/J,TSE,FR-1,1,00,T1.6,-,-,-,-,DISP/MODULE/SWITCH Samsung Electronics...
  • Page 38 2007-000493 R-CHIP;2.2Kohm,5%,1/8W,TP,2012 2.2K-J R807 2007-000553 R-CHIP;20ohm,5%,1/4W,TP,3216 20-J R502 2007-000614 R-CHIP;24Kohm,1%,1/10W,TP,1608 24K-F R407,R408,R409 2007-000781 R-CHIP;33ohm,5%,1/8W,TP,2012 33-J R113,R114,R115 2007-000924 R-CHIP;470Kohm,1%,1/4W,TP,3216 470K-F R808 2007-000931 R-CHIP;470ohm,5%,1/8W,TP,2012 470-J R806 2007-000950 R-CHIP;47ohm,5%,1/4W,TP,3216 47-J R501,R504 2007-000962 R-CHIP;5.1Kohm,1%,1/10W,TP,1608 5.1K-F R462,R463,R464 2007-000987 R-CHIP;5.6ohm,5%,1/8W,TP,2012 5.6-J R103 2007-001118 R-CHIP;680ohm,5%,1/8W,TP,2012 680-J Samsung Electronics...
  • Page 39 DB91-00531A EEPROM DATA FORTE1 12K IC501 DB91-00530A EEPROM DATA FORTE1 9K DB39-00514F CONNECT WIRE EARTH DB93-04349A CONNECT WIRE 4WAY DB93-04348C CONNECT WIRE COMM-N DB93-04336A CONNECT WIRE COMP DB93-04348B CONNECT WIRE REACTOR WIRE-FAN DB93-06156A CONNECT WIRE MOTOR 160*140 DB41-00626A PCB MONBLANC Samsung Electronics...
  • Page 40 DB39-00961U LEAD WIRE L/W AC_N TB-L,TB-N DB39-00998C C/W POWER CBF LEAD WIRE-POWER DB41-00532A PCB OUTDOOR EMI VA04,VA07,VA08,VA09 1405-000154 VARISTOR TVR14561KORSY / GNR14D561KCG C001,C002,C010,C011 2201-000540 C-CERAMIC,DISC 4.7nF C003 2301-001285 C-FILM,LEAD-PPF 680nF C004 2301-001325 C-FILM,LEAD-PPF 330nF 6042-001009 EYELET 4.0*3.0*2.3mm 6042-001012 EYELET 5.0*3.0*4.3mm Samsung Electronics...

  • Page 41: Wiring Diagram

    All manuals and user guides at all-guides.com 7. Wiring Diagram 7-1 Indoor Unit This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 42: Outdoor Unit

    All manuals and user guides at all-guides.com 7-2 Outdoor Unit This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 43: Schematic Diagram

    All manuals and user guides at all-guides.com 8. Schematic Diagram 8-1 Indoor Unit This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 44: Outdoor Unit

    All manuals and user guides at all-guides.com 8-2 Outdoor Unit This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 45: Circuit Descriptions

    9. Circuit Descriptions 9-1 PCB Circuit Descriptions 9-1-1 Indoor Unit SMPS BUZZER PART INDOOR FAN CONTROL SUB PCB CONNECTOR DISPLAY ZERO CROSSING PART INDOOR TEMPERATURE SENSOR STEP MOTOR & ION This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 46 All manuals and user guides at all-guides.com Circuit Descriptions Circuit Descriptions 9-1-2 Outdoor Unit TEMPERATURE SENSOR & EEV BLDC FAN COMMUNICATION SMPS INVERTER This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 47: Refrigerating Cycle Diagram

    9-2 Refrigerating Cycle Diagram Indoor Unit Outdoor Unit Capillary tube Check valve 2 way valve Liquid side Capillary tube Heat Heat Exchanger Exchanger (Evaporator) (Condenser) Gas side 3 way valve 4 way valve Cooling Heating Compressor Gas Leak Check Point Samsung Electronics...

  • Page 48: Pcb Diagram

    All manuals and user guides at all-guides.com 10. PCB Diagram 10-1 Indoor PCB The red number connecter is not used. Power Temperature Sensor Motor RPM Feedback Auto Grill Remocon Module HVPS(High voltage Generator) Humidity Sensor BLADE-H Step Motor Anions Display Indoor Fan Motor Samsung Electronics 10-1...

  • Page 49: Outdoor Pcb

    All manuals and user guides at all-guides.com 10-2 Outdoor PCB The red number connecter is not used. Power N COND/OLP Temperature Sensor Power L DIS/OUT Temperature Sensor BLDC FAN EEV Connector AC FAN Comp. Connector Wire Communication 485 Reactor Connector Wire 10-2 Samsung Electronics...

  • Page 50: Operating Instructions

    The design and shape are subject to change according to the model. Air Inlet Temperature sensor Power(On/Off) button Air filter Air flow blades (under the grille) (outlet) Operation indicator (GREEN) Timer indicator (GREEN) Turbo indicator (RED) Power(On/Off) button Samsung Electronics 11-1...
  • Page 51 All manuals and user guides at all-guides.com Operating Instructions 11-1-2 Outdoor Unit Air Inlet (Rear) Air Outlet Connection Valve Air Inlet (Rear) Air Outlet Connection Valve 11-2 Samsung Electronics...

  • Page 52: Wireless Remote Control-Buttons And Display

    & Silence mode button Fan speed & Silence indicator Swing button Air flow direction On Timer indicator On Timer button Off Timer indicator Off Timer button Battery discharge indicator On/Off & Timer Set/Cancel button Good Sleep button Samsung Electronics 11-3...

  • Page 53: Main Function

    Maximum Silence mode Heat Mode Press the button on the remote control until is displayed. Press the button to select the fan speed until the required setting is displayed. Automatic (rotated : Medium High Maximum Silence mode 11-4 Samsung Electronics...
  • Page 54 You can select the Turbo function in the Auto, Cool and Heat mode. If you select this function in the Dry or Fan mode, it will return to the Auto mode. good'sleep Press the button one or more times until is displayed on your Mode remote control. Samsung Electronics 11-5...

  • Page 55: Troubleshooting

    The compressor operates in a reverse cycle to remove Indoor fan and outdoor fan stop operation intermittently exterior ice in a HEAT mode, and indoor fan and outdoor in a HEAT mode. fan do not operate intermittently for within 20% of the total heater operation 12-1 Samsung Electronics...

  • Page 56: Fault Diagnosis By Symptom

    Replace fuse FUSE(F701) : T3.15[A]/250[V] Check the output of SMPS on the control board. Input power: AC230±15%[V] PCB should be replaced IC02 Input: DC12[V] IC02 output: DC5[V]  Check the setting temperature Samsung Electronics 12-2...
  • Page 57 Is there no error at the insertion of PCB? Exchange the PCB. Exchange the PCB. Are the BLDC FAN Wire Is the +,- of C102 short? 1 and 3 short? Exchange the PCB. Exchange the BLDC FAN. Normal Operation Exit 12-3 Samsung Electronics...
  • Page 58 Voltage at pin #30~#34 of micom (IC04) Micom (IC04) is faulty. change?(Squarewave) Voltage at Driver IC05/06 (ULN2003A) is faulty. pin #2 ~ #5 of CN61(motor connector) change?(Squarewave) Up/Down louver motor is faulty. Samsung Electronics 12-4...
  • Page 59 Pull out the power cord and during the operation?(Square-Wave) execute the following step after 30 seconds. Disassemble the BLDC FAN Wire. Is the short between Exchange the PCB. the BLDC FAN Wires? Exchange the BLDC FAN MOTOR. Exchange the PCB. 12-5 Samsung Electronics...
  • Page 60 Pull out the power cord and exchange the PCB from the case after 30 seconds. Is the assembly of Micom and Exchange the PCB. peripheral circuit part good? Check again after assembly of PCB. Samsung Electronics 12-6...
  • Page 61 4 way valve coil. Dose the voltage of AC 220V Exchange apply to the connector of 4 way the outdoor PCB. valve coil during the operation? Go to the next page 4 way valve main body error 12-7 Samsung Electronics...
  • Page 62 Connect the connector. correctly? Check the resistance value Outdoor fan error of outdoor fan. Dose the voltage of DC300V apply to the connector of outdoor Check the motor wire. fan during the operation of outdoor unit? Outdoor PCB error Samsung Electronics 12-8...
  • Page 63 Exchange the sensor. (Refer to the R/T TABLE) Is the resistance value of sensor connection pull_up 18.2K? Exchange the PCB. Exchange the PCB. Normal operation Exit 400.0 350.0 300.0 250.0 200.0 150.0 100.0 50.0 12-9 Samsung Electronics...
  • Page 64 Exchange the sensor. (Refer to the R/T TABLE) Is the resistance value of sensor connection pull_up 24K? Exchange the PCB. Exchange the PCB. Normal operation Exit 600.0 500.0 400.0 300.0 200.0 100.0 Samsung Electronics 12-10...
  • Page 65 Exchange the sensor. (Refer to the R/T TABLE) Is the resistance value of sensor connection pull_up 18.2K? Exchange the PCB. Exchange the PCB. Normal operation Exit 400.0 350.0 300.0 250.0 200.0 150.0 100.0 50.0 12-11 Samsung Electronics...
  • Page 66 4) Is the resistance value of sensor connection pull_up correct? 2. Troubleshooting procedure Remove the Fan lock. Isn't the Fan locked? Is the connector connected correctly? Connect the connector. Is the color of Fan wire matched correctly? Exchange the Fan. Exchange the PCB. Normal operation Exit Samsung Electronics 12-12...
  • Page 67 1, 2 correct after power supply? Is the capacitor(C101, C102, C103) Connect the connector. for DC-Link assembled in accordance the specification? Are R113, R114, R115 470kohm? Exchange the PCB. Is R116 14.3kohm? Exchange the Fan. Exchange the PCB. Normal operation Exit 12-13 Samsung Electronics...
  • Page 68 Is the position of temperature sensor Correct the sensor position or and the sensing value normal? exchange the sensor. Is the connection cable for Correct the cable connection. the compressor and power terminal normal? Exchange the PCB. Samsung Electronics 12-14...
  • Page 69 Correct the wrong wiring. and communication cable error? Is the connection of Correct the connection of communication cable normal? communication cable. Is it the outdoor Exchange the indoor/outdoor unit PCB. 2 Micom(Inverter + Main) model? Exchange the outdoor unit PCB. 12-15 Samsung Electronics...
  • Page 70 (u v, v w, w u) normal? Is the compressor body and Exchange the compressor. interphase resistance insulated? Is the connection cable for the Correct the cable connection. compressor and power terminal normal? Exchange the PCB. Samsung Electronics 12-16...
  • Page 71 (u v, v w, w u) normal? Is the compressor body and Exchange the compressor. interphase resistance insulated? Is the connection cable for the Correct the cable connection. compressor and power terminal normal? Exchange the PCB. 12-17 Samsung Electronics...
  • Page 72 Is the resistance for the Exchange the PCB. detection of DC Link voltage normal? Is the resistance value of Exchange the PCB. DC Link discharge normal? Is the reactor insulation damaged? Exchange the PCB. Exchange the reactor. Samsung Electronics 12-18...
  • Page 73 12-2-18 The others 1. AC Line Zero Cross Signal OUT – Check the assembly condition of peripheral part of IC21, ZD21, ZD20 and D200 on the PCB. 2. Capacity miss match – Check again the indoor unit option code. 12-19 Samsung Electronics...

  • Page 74: Pcb Inspection Method

    2) The fan motor of the indoor unit doesn’t run. • Fan Motor Connector(CN72) is faulty 3) The power voltage between terminal #3 and #5 • ASS’Y Main PCB is faulty of the connector(CN72) is 0V. • Connection is faulty Samsung Electronics 12-20...
  • Page 75 1) Is CN01 1, 3 over 250V? • Outdoor PCB Error 2) Is CN01 3, 5 within 1V~5V? • BLDC Motor Error 3) Is the voltage of CN01 6 changed? 4) Is the resistance of BLDC Motor 1, 3 opened after power off? 12-21 Samsung Electronics...

  • Page 76: Main Part Inspection Method

    ∞, 0Ω . . . Open or Short Stepping Motor Measure the resistance between the red wire and each terminal wire with a tester. Normal About 300Ω at the normal temperature (20˚C ~ 30˚C) Abnormal ∞, 0Ω . . . Open or Short Samsung Electronics 12-22...

  • Page 77: Block Diagram

    : BLADE CONTROL SELECT(UP/DOWN) MELODY CONTROL PART SLEEP OPERATION DC5V VOLTAGE REGULATOR ANION SELECT SPEAKER AUTO CLEAN SELECT OPTION ENERGY SAVING SELECT DC12V SMPS POWER BLOCK SOUND ON/OFF SELECT DIGITAL ON/OFF DC5V DC12V AC230V AC INPUT DC25V 13-1 Samsung Electronics...
  • Page 78 All manuals and user guides at all-guides.com Block Diagram INDOOR FAN CONTROL BUZZER CONTROL SMPS AC COMMUNICATION SUB-PCB Samsung Electronics 13-2...

  • Page 79: Outdoor Unit

    • 4 WAY CONTROL SIGNAL COMPRESSOR • PFC CONTROL SIGNAL • COMPRESSOR CONTROL(6P, BLDC) • LED CONTROL SIGNAL • INDOOR COMMUNICATION SIGNAL • 4 WAY VALVE SMPS • EEV INDOOR UNIT PFC CIRCUIT DC5V AC INPUT DC12V DC15V AC300V AC230V DC25V 13-3 Samsung Electronics...
  • Page 80 All manuals and user guides at all-guides.com Block Diagram IGBT DIODE OUTDOOR FAN DC_LINK CAP SMPS Samsung Electronics 13-4...

  • Page 81: Reference Sheet

    ③ : Use the " ③ " digit for classification between indoor and outdoor. Indoor  "N" & Outdoor  "X". ④ : Use the “ ④ ” digit for KD models. "CKD"  "1" & "SKD"  "2". 14-1 Samsung Electronics...

  • Page 82: 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 AQV09 AQV12 Samsung Electronics 14-2...

  • Page 83: Pressure & Capacity Mark

    0.10197 0.73756 4.1868 14.286 0.0056146 0.42693 3.088 1.163 0.27778 3.9683 0.0015596 0.11859 0.85778 3.9302x10 -4 0.29307 0.06999 0.252 0.029885 0.21616 745.7 178.11 641.19 2,544.4 76.04 9.8067 2.3423 8.4322 33.462 0.013151 7.233 1.3558 0.32383 1.1658 4.6262 0.0018182 0.13826 14-3 Samsung Electronics...

  • Page 84: Q & A For Non-Trouble

    It occurs when the drain pump is plugged out or it is out of order. Check the power of the drain pump and the position of the drain hose, and when the pump is faulty, contact the drain pump manufacturer. Samsung Electronics do not manufacture drain pumps.
  • Page 85 Also, the remote controller may not work under intensive light from a 3-wave length lamp or a neon sign due to the EMI. In this case, take the remote controller closer to the receiver. 14-5 Samsung Electronics...
  • Page 86 There is a cost table. But, our service engineer needs to visit to total up the cost correctly. When you move in, make sure to contact Samsung Electronics Service Center or Authorized Service Agent in advance to streamline the process.

  • Page 87: Cleaning/Filter Change

    Hook Body Note : • If you have not used the air conditioner for a long period of time, set the fan going for three to four hours to dry the inside of the air conditioner thoroughly. 14-7 Samsung Electronics...
  • Page 88 3. Wash the filters with clean water, then dry them in the shade. Bio Filter 4. Insert the filters into the original position. Note : • You can change the position of filters with each other. 5. Close the front grille. Samsung Electronics 14-8...

  • Page 89: Installation

    Electric and earth work shall meet the "Electric Facility Technology Standard" and the "Internal Wire Regulation" of the Electric Business Laws.  Inspection & Trial Run Upon completion of the tests, you shall make a trial run while you explain the main functions of the air conditioner to finish the installation. 14-9 Samsung Electronics...

  • Page 90: Installation Diagram Of Indoor Unit And Outdoor Unit

    183kgf•cm with a torque wrench. 7) Check for gas leakage. - At this time, especially check for gas leakage from the 3 way valve’s stem nuts, and from the service port cap. Samsung Electronics...
  • Page 91 • Make sure you do not bend the connection pipes in the middle and store together with the cables. • Move the indoor and outdoor units to a new location. • Remove the mounting plate for the indoor unit and move it to a new location. 14-11 Samsung Electronics...
  • Page 92 Mideast & Africa http://mea.samsungportal.com © Samsung Electronics Co., Ltd. Oct. 2007. This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable Printed in China. International and/or domestic law.

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