Samsung AR50F12 XNA Series Service Manual
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Samsung AR50F12 XNA Series Service Manual

Samsung AR50F12 XNA Series Service Manual

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AIR CONDITIONER
AR50F12****XNA
AR50F19D*N*XNA
AR50F18****XNA
AR50F19D*Z*XNA
AR50F19D*X*XNA
AR50F19D*5*XNA
AR50F19D*3*XNA
AR50F19C*X*XNA
AR50F19D*L*XNA
AR50F24****XNA
AR50F19D*J*XNA
AR50F24****XIG
AR50F12****XIG
AR50F19****XIG
SPLIT- T YPE AIR CONDITIONER
MODEL CODE
CONTENTS
1. Precautions
2. Product Specifications
3. Alignment and adjustments
4. Disassembly and
Reassembly
5. Assy control
6. Wiring Diagram
7. PCB Diagram
8. Operating Instructions
9. Troubleshooting
10. Inspection
11. Reference Sheet
AR50F12D1ZH/NA
AR50F19D1XH/NA
AR50F19D13H/NA
AR50F19D1LH/NA
AR50F18D13H/NA
AR50F18D1XH/NA
AR50F18D1LH/NA
AR50F12D0XH/NA
AR50F12D0LH/NA
AR50F19D1NH/NA
AR50F19D1ZH/NA
AR50F19D15H/NA
AR50F24D1XH/NA
AR50F12D0JH/IG
AR50F19D1JH/IG
AR50F24D1JH/IG
AR50F19C1XH/NA

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  • Page 1 SPLIT- T YPE AIR CONDITIONER MODEL CODE AR50F12D1ZH/NA AR50F19D1XH/NA AR50F19D13H/NA AR50F19D1LH/NA AR50F18D13H/NA AR50F18D1XH/NA AR50F18D1LH/NA AR50F12D0XH/NA AR50F12D0LH/NA AR50F19D1NH/NA AR50F19D1ZH/NA AR50F19D15H/NA AR50F24D1XH/NA AR50F12D0JH/IG AR50F19D1JH/IG AR50F24D1JH/IG AR50F19C1XH/NA AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Alignment and adjustments 4. Disassembly and Reassembly 5.

  • Page 2: Table Of Contents

    Contents 1. Precautions 1-1 Installing the air conditioner 1-2 Power supply and circuit breaker 1-3 During operation 1-4 Disposing of the unit 1-5 Others 1-2 2 2. Product Specifications 2-1 The Feature of Product 2-2 The comparative specifications of product 2-3 Accessory and option specifications 3.
  • Page 3 Contents 8. Operating Instructions 8-1 Name of Each Part 8-2 Wireless Remote Control-Buttons and Display 9. Troubleshooting 9-1 Items to be checked First 9-2 Error Mode 9-2-1 Communication Error 9-2-2 Indoor temperature sensor Error 9-2-3 Indoor fan motor speed detecting error (BLDC fan) 9-2-4 Outdoor temperature sensor error 9-2-5 Outdoor Cond temperature sensor error 9-2-6 Outdoor Discharge temperature sensor error...

  • Page 4: Precautions

    1. Precautions 1-1 Installing the air conditioner • Uses should not install the air conditioner by themselves. Ask the dealer or authorized company to install the air conditioner except window-type air conditioner in U.S.A and Canada. • If you don't install the air conditioner properly, it may cause a fire, a water leakage or an electric shock. •...

  • Page 5: Disposing Of The Unit

    1-4 Disposing of the unit • Before the throwing out the air conditioner, remove the batteries from the remote control. • When you dispose of the air conditioner, consult your dealer. If pipes are removed incorrectly, refrigerant may blow out and cause air pollution. When it contacts with your skin, it can cause skin injury. •...

  • Page 6: Product Specifications

    2. Product Specifications 2-1 The Feature of Product • Fast cooling If you want the strong and cool air, just select Fast function! It will get you the strongest air! • 5 step cooling -Use the 5 Step Cooling function to adjust the cooling speed by changing the operation rate of the outdoor unit.
  • Page 7 Model AR50F12D1ZH/NA AR50F19D1XH/NA AR50F19D13H/NA Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted T1 Cool 3500 / 1750 5300 / 2650 5300 / 2650 (T1/Half) Capacity T3 Cool Heat T1 Cool 890 / 307 1900 / 575 1900 / 575 (T1/Half) Power Input T3 Cool Heat T1 Cool...
  • Page 8 Model AR50F19D1LH/NA AR50F18D13H/NA AR50F18D1XH/NA Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted T1 Cool 5300 / 2650 4400 / 2200 4400 / 2200 (T1/Half) Capacity T3 Cool Heat T1 Cool 1900 / 575 1510 / 478 1510 / 478 (T1/Half) Power Input T3 Cool Heat T1 Cool...
  • Page 9 Model AR50F12D0XH/NA AR50F12D0LH/NA AR50F18D1LH/NA Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted T1 Cool 4400 / 2200 3500 / 1750 3500 / 1750 (T1/Half) Capacity T3 Cool Heat T1 Cool 1080 / 360 1080 / 360 1510 / 478 (T1/Half) Power Input T3 Cool Heat T1 Cool...
  • Page 10 Model AR50F19D1NH/NA AR50F19D1ZH/NA AR50F19D15H/NA Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted T1 Cool 5000 / 2500 5000 / 2500 5000 / 2500 (T1/Half) Capacity T3 Cool Heat T1 Cool 1290 / 433 1290 / 433 1290 / 433 (T1/Half) Power Input T3 Cool Heat T1 Cool...
  • Page 11 Model AR50F19D1JH/IG AR50F24D1XH/NA AR50F12D0JH/IG Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted T1 Cool 3500 / 1750 5300 6300 / 3150 (T1/Half) Capacity T3 Cool Heat T1 Cool 1080 / 360 1900 2000 / 666 (T1/Half) Power Input T3 Cool Heat T1 Cool Current T3 Cool Heat...
  • Page 12 Model AR50F19C1XH/NA AR50F24D1JH/IG Rating Mode Unit Wall-mounted Wall-mounted T1 Cool 5000 / 2500 6300 / 3150 (T1/Half) Capacity T3 Cool Heat 5400 T1 Cool 2000 / 666 1610 / 560 (T1/Half) Power Input T3 Cool Heat 1630 T1 Cool Current T3 Cool Heat 3.15 / 4.73...

  • Page 13: Accessory And Option Specifications

    2-3 Accessory and Option Specifications Item Code No. Q’ty Remark Descriptions DB90-11453A (Q1,Q2) ASSY HANGER DB90-11454A(Q3) ASSY HANGER DB96-25318J (AR50F***0**NNA) ASSY WIRELESS REMOCON DB96-25318E (AR50F***1**NNA) DB68-13348A (AR50F**C1**NNA) DB68-13345A (AR50F**D0**NNA) Indoor unit case DB68-13347A (AR50F**D0**NIG) MANUAL USER DB68-13344A (AR50F**D1**NNA) DB68-13346A (AR50F**D1**NIG) DB8-11042L (AR50F***1**N**) MANUAL INSTALL DB8-11042K (AR50F***0**N**)

  • Page 14: Alignment And Adjustments

    3. Alignment and Adjustments 3-1 Test Mode How to Approach Test Mode You can approach the test mode by pressing the on/off switch of indoor unit for 5 seconds. Test mode operation option After installing the air conditioner, check whether each subordinate is normally operated or not by operating the test mode.
  • Page 15 3-2 Display Error and Check Method 3-2-1 Indoor Display Error and Check Mathod ERROR MODE TYPE DESCRIPTION INDOOR/ 7-SEG OUTDOOR C101, C102 Communication error C108 Set address error C121 Room TH sensor error C122, C123 INDOOR MID, INDOOR IN EVA-TH sensor error C140 Dust sensor error C142...

  • Page 16: Display Error And Check Method

    3-2 Display Error and Check Method 3-2-2 Outdoor Display Error and Check Mathod ERROR MODE DESCRIPTION 7-SEG Power off /VDD NG Power on reset (1sec) Normal operation Abnormal communication (Indoor <-> Outdoor) C108 IPM over current (O.C) error C464 Comp. strating error C461 EEPROM data error (no data) C470...

  • Page 17: Setting Option Setup Method

    3-3 Setting Option Setup Method Ex) Option No. : Step 1 Enter the Option Setup mode. 1. Tack out the batteries of remote control. 2. Press the temperatur e 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.
  • Page 18 Method Display Press the button to set Cool mode. Setting option SEG5 Press the button the display panel to. … Press the button repeatedly to select. Setting option SEG6 Press the button the display panel to. … Press the button repeatedly to select. Press the button to set Cool mode.
  • Page 19 Method Display Press the button to set Auto mode. Setting option SEG11 Press the button the display panel to . … Press the button repeatedly to select . Setting option SEG12 button the display panel to . Press the … Press the button repeatedly to select.
  • Page 20 Method Display Press the button to set Fan mode. Setting option SEG17 Press the button the display panel to … Press the button repeatedly to select . Setting option SEG18 Press the button the display panel to … Press the button repeatedly to select .

  • Page 21: Option Code

    Option code : Option code Model General Install AR50F12D1ZHNNA 015215-10522A-272300-371840 026000-100600-20036A-300300 AR50F19D1XHNNA 015215-10525A-273500-372640 026000-100600-20036A-300300 AR50F19D13HNNA 015215-10525A-273500-372640 026000-100600-20036A-300300 AR50F19D1LHNNA 015215-10525A-273500-372640 026000-100600-20036A-300300 AR50F18D13HNNA 015215-10525B-272C00-371640 026000-100600-20036A-300300 AR50F18D1XHNNA 015215-10525B-272C00-371640 026000-100600-20036A-300300 AR50F18D1LHNNA 015215-10525B-272C00-371640 026000-100600-20036A-300300 AR50F12D0XHNNA 000002-10521A-29801B-30E301 020000-100000-200000-300000 AR50F12D0LHNNA 000002-10521A-29801B-30E301 020000-100000-200000-300000 AR50F19D1NHNNA 015215-10524C-273200-371740 026000-100600-20036A-300300 AR50F19D1ZHNNA 015215-10524C-273200-371740 026000-100600-20036A-300300 AR50F19D15HNNA 015215-10524C-273200-371740...

  • Page 22: Disassembly And Reassembly

    4. Disassembly and Reassembly Necessary Tools Item Remark +SCREW DRIVER Q’ty 1 ea. To assembly and disassembly the screw MONKEY SPANNER Q’ty 1 ea. To assembly and disassembly the Fan motor and Compressor - SCREW DRIVER Q’ty 1 ea. To assembly and disassembly the screw...

  • Page 23: Indoor Unit

    4-1. Indoor Unit Parts Procedure Remark PANEL-FRONT 1) Stop the driving of air conditioner and shut off main power supply. 2) Detach FILTER PRE from the PANEL FRONT. 3) The COVER PANEL is fixed to body by hooks in center and side area. 4) Separate the hook pulling end of the COVER PANEL as shown in figures.(Watch out for the damage of...
  • Page 24 Parts Procedure Remark PANEL-FRONT Caution: Assembly of Cover Panel after service end. - Piping and Drain Hose must be caseful not to damage and progress must be done with both hands. - Need to check all bottom hooks in holes of the main frame before you push to assemble.
  • Page 25 Parts Procedure Remark PANEL-FRONT 5) The GRILLE INLET is fixed to body by hooks in the center and side area. 6) Separate the hook pulling end of the GRILLE INLET as shown in figures.(Watch out for the damage of hooks) 7) To detach the PANEL FRONT from the main frame, unfasten 2 screws at the bottom.
  • Page 26 Parts Procedure Remark PANEL-FRONT 9)Raise the PANEL FRONT upward as shown in the figure to seperate the 3 hooks. CONTROL-IN 10)To open the CONTROL-IN, raise the side flanges of the PLATE-RIGHT at an angle and un- lock 2 hooks. 11)To detach the CONTROLIN, unfasten a screw back of the PLATE-LEFT as shown in figures.
  • Page 27 Parts Procedure Remark CONTROL-IN 12)Separate Fan Moter wire as shown in figures. Caution: When you separate the connec- tor, pull pressing the locking button. 13)Separate Blade Moter wire as shown in figures. Caution: When you separate the connec- tor, pull pressing the locking button.
  • Page 28 Parts Procedure Remark CONTORL IN 15)Unfasten a screw of the Ground wire and pick up Temperature wires from ASSY EVAP. (Use (+) Screw Driver.) 16) The CONTROL-IN is fixed to HOLER PIPE by a hook bottom of the case as shown in the last figure.
  • Page 29 Parts Procedure Remark TRAY DRAIN 18) To detach the TRAY DRAIN from the main frame, pull the bottom of the TRAY DRAIN and it leans toward to you as shown in figures. 19) Pull out the Drain Hose.
  • Page 30 Parts Procedure Remark EVAPORATOR 20) The HOLDER PIPE is fixed to body by 2 hooks as shown in the figure. 21) To detach the HOLDER PIPE from the main frame,loosen 2 hook structhres. When separate hooks: Use the (-) Screw Driver. Insert the (-) Screw Driver into the gap of the hook and lean to the Moter side as shown in figures.
  • Page 31 Parts Procedure Remark EVAPORATOR 25) Pull up the EVAPORATOR of the opposite side of the Fan Moter 26) loosen a hook of the Fan Moter side. 27) Pull up the EVAPORATOR to- ward to you. 4-10...
  • Page 32 Parts Procedure Remark FAN MOTOR 28) Unfasten a screw on the & COVER MOTER. CROSS FAN (Use (+) Screw Driver.) 29) Unwind the Moter Wire. 30)Detach the COVER MOTER. 31) Unfasten a screw of the CROSS FAN a little. (Use (+) Screw Driver.) 32)Raise up the CROSS FAN of the left side and pull out from the Moter.

  • Page 33: Outdoor Unit

    4-2. Outdoor Unit (AR50F12****XNA, AR50F18****XNA, AR50F19D*X*XNA, AR50F19**3*XNA, AR50F19**L*XNA, AR50F19**J*XNA, AR50F12****XIG, AR50F19****XIG) Parts Procedure Remark Common work 1) ) Loosen each screws and detach the cabi Top cover. 2) ) Loosen screws of the cabi front and detach it. 4-12...
  • Page 34 Parts Procedure Remark 3) ) Loosen ing screws from the Cabi Front Lh and detach it. 4)Loosen ng screws from the Cabi Side Rh and detach it. 4-13...
  • Page 35 Parts Procedure Remark 1) ) Detach the Nut Flange like the & picture on the right side. Motor (Turn clockwise because the screw is left-handed.) (Use Monkey Spanner.) 2) Detach the Fan Propeller. 3) Loosen 4 fixing screws to detach the Motor. (Use Monkey Spanner.) 4) Disconnect the wire between Ass’y Control Out and Motor.
  • Page 36 Parts Procedure Remark Assy 1) ) To remove the Cover control box : Control Out Pull the motor wire is allow sufficientspace as shown on the right side and then remove the screw. 2) Detach several connectors from the Assy Control Out. 3) Detach several connectors from the PCB of Assy Control Out.
  • Page 37 Parts Procedure Remark Compressor 1) ) Loosen the ng nut and detach the Compressor Lead Wire. (Use Monkey Spanner.) 2) ) Loosen the bolts at the bottom of Compressor like the picture on the right side. (Use Monkey Spanner.) 4-16...
  • Page 38 Parts Procedure Remark EVAPORATOR 25) Pull up the EVAPORATOR of the opposite side of the Fan Moter 26) loosen a hook of the Fan Moter side. 27) Pull up the EVAPORATOR to- ward to you. 4-17...
  • Page 39 Parts Procedure Remark FAN MOTOR 28) Unfasten a screw on the & COVER MOTER. CROSS FAN (Use (+) Screw Driver.) 29) Unwind the Moter Wire. 30)Detach the COVER MOTER. 31) Unfasten a screw of the CROSS FAN a little. (Use (+) Screw Driver.) 32)Raise up the CROSS FAN of the left side and pull out from the Moter.
  • Page 40 4-2. Outdoor Unit (AR50F19**N*XNA, AR50F19**Z*XNA, AR50F19**5*XNA, AR50F19C*X*XNA, AR50F24****XNA, AR50F24****XIG) 1) Loosen 1 fixing screw of the Cover Control and detach the Cove Control. 2) Loosen fixing screws of the Cabinet Front and detach the Cabinet Front. 3) Loosen 1 fixing screw to disassemble C-Box with Cabinet Side-RH 4) Loosen fixing screws of the Cabinet Side- RH and detach.
  • Page 41 LF and detach the Cabinet LF 4-20...
  • Page 42 4-21...
  • Page 43 4-22...
  • Page 44 4-23...

  • Page 45: Assy Control

    5. Assy control 5-1 ASSY PBA KIT-IN MODULE DB92-05857A (AR50F**D1**NNA, AR50F**D1**NIG)
  • Page 46 DB92-05601G (AR50F**D0**NNA, AR50F**D0**NIG)
  • Page 47 DB92-05857B (AR50F**C1**NNA)

  • Page 48: Assy Pba Kit-Out Module

    5-2 ASSY PBA KIT-OUT MODULE DB92-05824B (AR50F12*1**XNA, AR50F18*1**XNA, AR50F19*1X*XNA, AR50F19*13*XNA, AR50F19*1L*XNA, AR50F19*1**XIG)
  • Page 49 DB92-05824K (AR50F19*1N*XNA, AR50F19*1Z*XNA, AR50F19*15*XNA, AR50F24*****XNA AR50F24*1**XIG)
  • Page 50 DB92-05677C (AR50F12*0**XNA, AR50F12*0**XIG)

  • Page 51: Indoor Unit

    6-1 Indoor Unit AR50F***1**NNA, AR50F***1**NIG INDOOR DIAGRAM INDOOR PBA TERMINAL BLOCK OPTION 1(L) 2(N) 1(L)/L1 POWER(L) 1(L) 2(N) F1 2(N)/L2 POWER(N) COMMUNICATION COMMUNICATION EARTH USE COPPER SUPPLY WIRES UTILISER DES FILS D'ALIMENTATION EN CUIVRE ( OPTION / USA&CANADA ONLY) INDOOR-OUTDOOR INDOOR-OUTDOOR POWER CABLE  ...

  • Page 52: Outdoor Unit

    6-2 Outdoor Unit AR50F***1**XNA, AR50F***0**XIG AR50F***0**XNA, AR50F***0**XNA...

  • Page 53: Pcb Diagram

    7. PCB Diagram 7-1 Indoor Main PBA DB92-05822D (AR50F***1**NNA, AR50F***1**NIG)
  • Page 54 DB92-05589A (AR50F***0**NNA, AR50F***0**NIG)

  • Page 55: Outdoor Inverter Pba

    7-2 Outdoor Inverter PBA DB92-05826B (AR50F***1**XNA, AR50F***1**XIG)
  • Page 56 DB92-05587A (AR50F***0**XNA, AR50F***0**XIG)

  • Page 57: Display Pba

    7-3 Display PBA...

  • Page 58: Wire Connecting The Indoor Unit Terminal Blocks

    7-4 Wire connecting the indoor unit terminal blocks 1. Terminal press of Ring terminal shall be set facing up before connecting wire. 2. There shall be no empty space between Ring terminal and Screw after Clamp. If not, there exists a possibility of fire which can be caused by electric heat in the connecting part.

  • Page 59: Operating Instructions

    8. Operating Instructions 8-1 Name of Each Part 8-1-1 Indoor Unit The design and shape are subject to change according to the model. - Main Parts - Display (AR50***D1**NNA, AR50***D1**NIG)
  • Page 60 - Display (AR50***D0**NNA, AR50***D0**NIG) - Display (AR50***C1**NNA)

  • Page 61: Wireless Remote Control-Buttons And Display

    8-2 Wireless Remote control-Buttons and Display DB96-25318E (AR50***D1**NNA, AR50***D1**NIG)
  • Page 62 DB96-25318J (AR50***D0**NNA, AR50***D0**NIG)
  • Page 63 DB96-25318H (AR50***C1**NNA)

  • Page 64: Troubleshooting

    9. Troubleshooting 9-1 Items to be checked first The input voltage should be rating voltage ±10% range.The air conditioner may not operate properly if the voltage is out of this range. Is the line cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 5 cables.

  • Page 65: Error Mode

    9-2 Error Mode 9-2-1 Communication Error Indoor display 7-SEG DISPLAY DESCRIPTION C101/C102 Communication error(Indoor<->outdoor) Outdoor display 1min. Time out Comm. Abnormal Communication LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the cable between the indoor unit and outdoor unit connected correctly? 2) Isn’t the power cable and communication cable cross? 2.

  • Page 66: Indoor Temperature Sensor Error

    9-2-2 Indoor temperature sensor Error Indoor display 7-SEG DISPLAY DESCRIPTION C121 Indoor room temp sensor error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the indoor units temperature sensor connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 2.

  • Page 67: Indoor Fan Motor Speed Detecting Error (Bldc Fan)

    9-2-3 Indoor fan motor speed detecting error (BLDC fan) Indoor display 7-SEG DISPLAY DESCRIPTION C154 Indoor fan error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the indoor units fan motor properly connected with the connector(CN72)? 2) Is the AC voltage correct? 2.

  • Page 68: Outdoor Temperature Sensor Error

    9-2-4 Outdoor temperature sensor error Indoor display 7-SEG DISPLAY DESCRIPTION C221 Outdoor temperature sensor error Outdoor display Outdoor temperature sensor error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the sensor connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull-up correct? Model...

  • Page 69: Outdoor Cond Temperature Sensor Error

    9-2-5 Outdoor Cond temperature sensor error Indoor display 7-SEG DISPLAY DESCRIPTION C231 Outdoor Cond temperature sensor error Outdoor display Outdoor Cond temperature sensor error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the sensor connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull-up correct? 2.

  • Page 70: Outdoor Discharge Temperature Sensor Error

    9-2-6 Outdoor Discharge temperature sensor error Indoor display 7-SEG DISPLAY DESCRIPTION C251 Outdoor Discharge temperature sensor error Outdoor display Outdoor Discharge temperature sensor error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the sensor connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull-up correct? 2.

  • Page 71: Operation Condition Secession Error

    9-2-7 Operation condition secession error Indoor display 7-SEG DISPLAY DESCRIPTION C440 Prohibit Operation Condition Error (Heating) C441 Prohibit Operation Condition Error (Cooling) Outdoor display Operation condition secession LED OFF LED ON LED BLINKING 1. Checklist : 1) Check the temperature around the outdoor unit. 2.

  • Page 72: Eeprom Error/Otp Error

    9-2-8 EEPROM error / OTP error Indoor display 7-SEG DISPLAY DESCRIPTION C470 EEPROM Data Error (no data) OTP errorEEPROM Data Error C471 (Main Micom Inv Micom) Outdoor display EEPROM Data Error (no data) OTP errorEEPROM Data Error (Main MicomInv Micom) LED OFF LED ON LED BLINKING...

  • Page 73: Outdoor Fan Motor Error

    9-2-9 Outdoor Fan motor error Indoor display 7-SEG DISPLAY DESCRIPTION C458 Outdoor fan error Outdoor display Outdoor fan error LED OFF LED ON LED BLINKING 1. Checklist : 1) Are the input power voltage and the power connection correct? 2) Is the motor wire connected to the outdoor PBA correctly? 3) Is there no assembly error or non-assembly in the terminal of motor wire connector? 4) Is there no obstacle at the surrounding of motor and propeller? 2.

  • Page 74: Compressor Starting Error

    9-2-10 Compressor starting error Indoor display 7-SEG DISPLAY DESCRIPTION C461 Comp starting error Outdoor display Comp starting error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the connection of cable for the compressor? 2) Is the compressor wire is connected clockwise? U(RED)-V(BLU)-W(YEL) 3) Is the interphase resistance of compressor normal? 2.

  • Page 75: Compressor Wire Missing Error/Rotation Error

    9-2-11 Compressor wire missing error/rotation error Indoor display 7-SEG DISPLAY DESCRIPTION C467 Compressor wire missing errorr/rotation error Outdoor display Compressor wire missing error/rotation error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the connection of cable for the compressor? 2) Is the compressor wire is connected clockwise? U(RED)-V(BLU)-W(YEL) 3) Is the interphase resistance of compressor normal? 2.

  • Page 76: Current Sensor Error/Input Current Sensor Error

    9-2-12 Current sensor error/Input current sensor error Indoor display 7-SEG DISPLAY DESCRIPTION C462 AC Input I_Limit Trip Error Outdoor display Current sensor error Input current sensor error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the PFC Shunt(“A”) resistance value correct? Check the resistor is opened 2) Is the IPM Shunt(“B”) resistance value correct? Check the resistor is opened 3) Is there no short or open around “C”? 2.

  • Page 77: Over Current) Error

    9-2-13 O.C(Over Current) error Indoor display 7-SEG DISPLAY DESCRIPTION C464 IPM Over Current(O.C) Error Outdoor display Current sensor error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the IPM Shunt resistance value correct? Check the resistor is opened 2) Is the condition of surrounding temperature abnormal overload? 3) Is there any problem as like the temperature sensor separation or measurement value error? 4) Is the interphase resistance of compressor normal?
  • Page 78 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 9-15...

  • Page 79: No Power Outdoor (Initial Diagnosis) (Not Displayed)

    9-2-14 No power outdoor (Initial Diagnosis) (Not displayed) 1. Checklist : 1) Is input power normal? 2) Is AC power linked correctly? (L,N,E) 3) Is mis-wiring between communication wire and Power wire? 4) Is mis-wiring between Main PBA and SMPS PBA wire? 5) Is input voltage of SMPS AC in Main PBA (CN150) normal? 6) Is the voltage of SMPS DC in Main PBA (CN151,CN152) normal? 2.

  • Page 80: When The Up/Down, Left/Right, Grill Louver Motor Does Not Operate

    9-2-15 When the Up/Down, Left/Right, Grill louver motor does not operate (Initial Diagnosis)(Not displayed) 1. Checklist : 1) Is the input power voltage normal? 2) Is the Up/Down louver motor properly connected with the connector? (CN61, CN62, CN63) 2. Troubleshooting procedure Unplug the power cord and plug it after 30seconds later.

  • Page 81: When The Remote Control Is Not Receiving

    9-2-16 When the remote control is not receiving 1. Checklist : 1) Check if the connector was normally assembled. 2) Check the battery in remote control 3) All the lights out and check again : Change electronic typed to a rescent light 4) Put the set in operation and check the voltage of display PBA 5) Replace the display PBA 2.

  • Page 82: Smart Install Error

    9-2-17 Smart Install error 1. Checklist : 1) Check the leakage region.(Use leakage detection liquid or soapy water) 2) When leakage region is found from service valve and piping connection re nut part : After the related measures to check the refrigerant supplements and operation. 3) If the leakage region is pipe welding part : Weld leakage region after refrigerant gas release.(Brass parts should only apply) 4) If the leakage region is surface area (Heat exchanger or pipe welding region is not) : Replace parts.

  • Page 83: Outdoor Olp Over Temperature Error (One Way Inverter Only)

    9-2-18 Outdoor OLP over temperature error (One way Inverter Only) Indoor display DESCRIPTION No display about the outdoor condition Outdoor display C463 IPM Over Current(O.C) Error LED OFF LED ON LED BLINKING 1. Checklist : 1) Is the sensor placed correctly? 2) Check the service valve is closed 3) Check the compressor locking or gas leak 2.

  • Page 84: Eev Or Valve Close Error

    9-2-19. EEV or VALVE CLOSE error (C422) 1. failure cause Check for leakage using leakage detection liquid or soapy water. If a leak is found in t he service valve or piping connection f lare nut part, take the relevant action and recheck the refrigerant and operation. If the leakage part is a PIPE welding part, rewelding is performed after release of refrigerant gas to block the leakage part.

  • Page 85: Outdoor Fan Motor Errors

    9-2-20 Outdoor fan motor errors Indoor display 7-SEG DISPLAY DESCRIPTION C486 FAN DC-LINK VOLTAGE UNDER/OVER ERROR C383 FAN CONTROLLER PCB OVERHEAT C478 FAN IPM OVER CURRENT(O.C) ERROR C489 FAN VLIMIT / Current Limit C446 FAN STARTING ERROR C447 FAN WIRE MISSING ERROR C455 FAN HEATSINK OVER TEMP ERROR C493...

  • Page 86: Diagnosis Of Inverter Pba Using Hass Tool

    9-2-21 Diagnosis of Inverter PBA using HASS tool ※ HASS (Home Appliance Smart Service) 1. You can diagnosis the status of the Inverter PBA 1) In case of outdoor error (C464, C465, C461, C458, C462), you can check whether the cause of error is the Inverter PBA, Compressor or fan motor.

  • Page 87: Inspection

    10. Inspection 10-1 Pre-inspection Notices Check if you pulled out the AC power plug when you eliminate the PCB or front panel. Don’t hold the PCB side not impose excessive force on it to eliminate the PCB. Don’t pull the lead wire but hold the whole housing to connect or disconnect a connector to the PCB. In case of outdoor PCB disassembly, check first the complete discharge of condenser after 1 minute power off.

  • Page 88: Outdoor Detailed Inspection Procedure

    10-4 Outdoor detailed inspection procedure Procedure Inspection Method Cause Plug out and pull the PCB out of 1) Is 1st fuse disconnected? • Over current the control box. Check the PCB fuse • AC part and pattern short of (Wait 3 minutes after power off) Outdoor PBA 1) Is the Compressor wire connected clockwise? •...

  • Page 89: Reference Sheet

    11. Reference Sheet 11-1 Low Refrigerant Pressure Distribution Note : Please measure the refrigerant pressure after the air conditioner operates on testing cooling mode during more than 10 minutes. ▶ 18K 3Star (Full capa) 11-1...
  • Page 90 ▶ 18K 3Star (low capa)
  • Page 91 ▶ 12K 5Star...
  • Page 92 ▶ 18K 5Star...
  • Page 93 ▶ 24K 3Star...
  • Page 94 ▶ 12K 3Star...

  • Page 95: 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. So, we are not able to correct the drain pump problems.
  • Page 96 Classication Class Description Smells Whenever the air conditioner is turned on, it stinks. When are no components in the air conditioner sending out chemical smells. But, when the air condi- tioner is turned on, other smell sources are sucked into the air conditioner and get out of it. So, find and root out the smell sources.
  • Page 97 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 98: Cleaning /Filter Change

    11-3 Cleaning /Filter Change Auto clean function Use the Auto clean function if the indoor unit produces odors. Activating Auto clean To activate Auto clean, press the (Options) button for at least 3 seconds. The indoor unit display shows: (AR50F**D1**NNA, (AR50F**D0**NNA (AR50F**C1**NNA) AR50F**D1**NIG)

  • Page 99: Cleaning The Filter

    Cleaning the outside of the indoor unit 1 Turn off the air conditioner and wait until the fan stops. 2 Disconnect the power supply. 3 Use a soft brush or tepid damp cloth to clean the exterior. WARNING • Do not clean the appliance by spraying water directly onto it. Soft brush Water entering the unit may result in electric shock or fire that could cause death, serious injury, or property damage:...

  • Page 100: Installation

    11-4 Installation 11-4-1 Before Installation Keep the air conditioner outlet and inlet free from its surrounding. In case of installation, keep the symmetry and fix it to prevent vibration. The pipe length shall meet the standard as far as possible. 11-4-2 Installation Procedure ■...

  • Page 101: Installation Diagram Of Indoor Unit And Outdoor Unit

    11-5 Installation Diagram of Indoor Unit and Outdoor Unit 11-5-1 Air-Purge Procedure 1) Connect each assembly pipe to the appropriate valve on Indoor unit Outdoor unit the outdoor unit and tighten the flare nut. Gas pipe side Liquid pipe side 2) Connect the charging hose of low pressure side of manifold gauge to the packed valve having a service port (3/8"...

  • Page 102: "Pump Down" Procedure

    11-5-2 "Pump down" Procedure Pump down will be carried out when an evaporator is replaced or when the unit is relocated in another area. 1) Remove the caps from the 3 way valve and the 3 way valve. 2) Turn the 3 way valve clockwise to close and 3 way Valve connect a pressure gauge (low pressure side) to the service valve, and open the 3 way valve...

  • Page 103: Maintenance Procedures

    Maintenance Procedures Performing the gas leak tests for repair If vacuuming is not possible, make a manifold so that refrigerant can be easily removed from the parts of the In case of repair of the refrigerant circuit, the following procedure system.

  • Page 104: Reference Sheet

    11-6 Reference Sheet Nomenclature for Model Name 11-15...
  • Page 105 China http://gspn2.samsungcsportal.com Asia Middleeast & Africa http://gspn1.samsungcsportal.com This Service Manual is a property of Samsung Electronics Co., © Samsung Electronics Co., Ltd. Ltd. Any unauthorized use of Manual can be punished under November 2019 applicable International and/or domestic law.

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