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Samsung AR07CXCAAWKNEU Service Manual
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Samsung AR07CXCAAWKNEU Service Manual

Samsung AR07CXCAAWKNEU Service Manual

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AIR CONDITIONER
AR07CXCAAWKNEU
AR09CXCAAWKNEU
AR12CXCAAWKNEU
AR09TXCAAWKXEU
AR12TXCAAWKXEU
SPLIT-TYPE AIRCONDITIONER
INDOOR UNIT
AR07CXCAAWKNEU
MODEL CODE
AR09CXCAAWKNEU
AR12CXCAAWKNEU
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.Block Diagram
11. Reference Sheet
OUTDOOR UNIT
-
AR09TXCAAWKXEU
AR12TXCAAWKXEU

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Summary of Contents for Samsung AR07CXCAAWKNEU

  • Page 1 SPLIT-TYPE AIRCONDITIONER OUTDOOR UNIT INDOOR UNIT AR07CXCAAWKNEU MODEL CODE AR09TXCAAWKXEU AR09CXCAAWKNEU AR12TXCAAWKXEU AR12CXCAAWKNEU AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Alignment and Adjustments 4. Disassembly and Reassembly AR07CXCAAWKNEU 5. ASSY CONTROL AR09CXCAAWKNEU AR12CXCAAWKNEU 6. Wiring Diagram 7. PCB Diagram 8.

  • 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 1-4 Others 2. Product Specications 2-1 The Feature of Product 2-2 Product Specifications 2-3 The comparative specifications of product 2-4 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. Troubleshootin 9-1 Items to be checked First 9-2 Communication Error 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. • You must install the air conditioner according to the national wiring regulations and safety regulations.

  • 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. • The package of the air conditioner should be recycled or disposed of properly for environmental reasons.

  • Page 6: Product Specications

    2. Product Specications 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! WindFree Cooling Use the WindFree Cooling function to enjoy a mild breeze coming through fine holes in the WindFree panel instead of air coming directly through the air flow blades. Use the Single User function when you’re along at home. Aside from energy savings from the inverter technology, the Single User Mode will further minimize your energy consumption and reduce your electricity bill by adjusting the maximum operating capacity of the compressor.

  • Page 7: Product Specifications

    2-2 Product specification AR07CXCAAWKNEU AR09CXCAAWK/EU AR12CXCAAWK/EU Model Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted 2000 2500 3500 T1 Cool Capacity T3 Cool 2200 3200 4000 Heat T1 Cool Power Input T3 Cool Heat T1 Cool Current T3 Cool Heat 4.63 3.95 Efficiency 4.74...

  • Page 8: The Comparative Specifications Of Product

    2-3 The comparative specification of product DEVELOPMENT MODEL Model AR07CXCAAWKNEU AR09CXCAAWK/EU AR12CXCAAWK/EU Indoor Unit Design Outdoor Unit Indoor Unit 10.6 10.6 10.6 Net Weight Outdoor Unit 32.7 32.7 820*299*215 1055*299*215 1055*299*215 Indoor Unit Net Dimension 790*548*285 790*548*285 Outdoor Unit 37/19 dB↓...

  • Page 9: Accessory And Option Specifications

    2-4 Accessory and Option Specifications Item Descriptions Code No. Q’ty Remark DB90-11453A (Q1, Q2) ASSY HANGER DB90-11454A (Q3) ASSY WIRELESS REMOCON DB96-25924C Indoor unit case MANUAL USER DB68-12024A MANUAL USER DB68-08595A MANUAL INSTALL DB68-12012A Rubber Leg DB67-01533A Outdoor unit case DB67-20011A Drain plug...

  • Page 10: 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 11: Display Error And Check Method

    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 12: 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) IPM over current (O.C) error C464 Comp. strating error C461 EEPROM data error (no data) C470...

  • Page 13: Setting Option Setup Method

    3-3 Setting Option Setup Method Example Option code : Step 1 Enter the Option Setup mode. 1. Connect the remote control by using the USB port (C-Type) at the bottom of the remote control. 2. Press and hold the button simultaneously for 5 seconds. (After connecting the remote control, press the button within 10 seconds.) 3.
  • Page 14 Step 2 Enter the Option Setup mode. Press the button to set next options. Setting SEG 5 Press the button to set the display panel to 5. Temp Every time you press the button, the display panel Temp reads 0 → 1 → 2 → 3 → ··· 9 → A → B → C → D → E → F repeatedly. Setting SEG 6 Press the button to set the display panel to 0.
  • Page 15 Step 2 Enter the Option Setup mode. Press the button to set next options. Setting SEG 11 Press the button to set the display panel to 7. Temp Every time you press the button, the display panel Temp reads 0 → 1 → 2 → 3 → ··· 9 → A → B → C → D → E → F repeatedly. 15,18 Setting SEG 12 Press the button to set the display panel to 1.
  • Page 16 Step 2 Enter the Option Setup mode. Press the button to set next options. Setting SEG 17 Press the button to set the display panel to 1. Temp Every time you press the button, the display panel Temp reads 0 → 1 → 2 → 3 → ··· 9 → A → B → C → D → E → F repeatedly. 24,27 Setting SEG 18 Press the button to set the display panel to 0.

  • Page 17: Option Code

    (If ther deriving sound isn’t heard, try again pressing the button. Step 5 Press button after 5 second and check whether the option code is set properly. Option code : Option code Model General Install AR07CXCAAWKNEU 011A05-18C0E7-271416-371600 024002-100000-200301-300346 AR09CXCAAWK/EU 011A05-19C0F7-271920-371600 024002-100000-200301-300346 AR12CXCAAWK/EU 011A05-17C217-272328-371600 024002-100000-200301-300346...

  • Page 18: 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 19: 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 hooks)
  • Page 20 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 21 Parts Procedure Remark 5) The GRILLE INLET is fixed to PANEL-FRONT 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. (use (+) Screw Driver) 8) To detach the PANEL FRONT...
  • Page 22 Parts Procedure Remark PANEL-FRONT 9)Raise the PANEL FRONT upward as shown in the figure to separate 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. (use (+) Screw Driver)
  • Page 23 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. 14)Cut off the Cable Tie tied up wires.
  • Page 24 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. (Please loosen remaining connectors before detaching CASECONTROL.
  • Page 25 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 26 Parts Procedure Remark 20) The HOLDER PIPE is fixed EVAPORATOR 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. (Watch out for the damate of hooks)
  • Page 27 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.
  • Page 28 Parts Procedure Remark FAN MOTOR 28) Unfasten a screw on the & COVER MOTER. (Use (+) Screw Driver.) CROSS FAN 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 29: Outdoor Unit

    4-2. Outdoor Unit (N-SI) AR09TXCAAWKXEU AR12TXCAAWKXEU 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.
  • Page 30 Parts Procedure Remark 3) Remove the 4 Cond Bar from the holder of outdoor unit cabinet. * This process is supported by heating models only 4) Loosen ing screws from the Cabi Front Lh and detach it. 5) Loosen ng screws from the Cabi Side Rh and detach it.
  • Page 31 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 32 Parts Procedure Remark 1) To remove the Cover control box : Assy 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. 1) Release the refrigerant at first.
  • Page 33 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.)

  • Page 34: Assy Control

    5. ASSY CONTROL 5-1 ASSY KIT CODE DB92-04845L NAME CODE Q’ty Unit CASE CONTROL-IN (HIPS DB61-07432C (6300)) PLATE CONTROL-LF DB61-07431A PLATE CONTROL-LOW DB61-07428A PLATE CONTROL-UP DB61-07429A PLATE CONTROL-SUB DB61-07427A HOLDER-WIRE DB61-05871A SCREW-TAPPING 6002-001163 SCREW-TAPPING 6002-000213 SCREW-SPECIAL 6003-001768 CABLE TIE 6501-001075 TERMINAL BLOCK_4P_ DB37-00033A GLOBAL...

  • Page 35: Assy Kit Code Db92-04842J

    5-2 ASSY KIT CODE DB92-04842J NAME CODE Q’ty unit ASSY-THERMAL GREASE 0205-000178 0.002 SCREW-MACHINE (TB) 6001-000722 SCREW-TAPPING (CLAMP 6002-000234 4EA) SCREW-TAPPING (CLAMP 6002-000239 2EA, CASE 1EA) SCREW-TAPPING (PBA) 6002-000630 SCREW-TAPPING (EARTH) 6003-001768 6009-001001 ASSY-SCREW MACHINE DB91-00933A (H/S) HOLDER-WIRE CLAMP DB61-00250A CASE CONTROL LOW DB61-06722C COVER CONTROL OUT...

  • Page 36: Wiring Diagram

    6. Wiring Diagram 6-1 Indoor Unit CODE : DB68-08680A-01...

  • Page 37: Outdoor Unit

    6-2 Outdoor Unit CODE : DB68-08682A-01...

  • Page 38: Pcb Diagram

    7. PCB Diagram 7-1 Indoor Main PCB CODE DB92-04839A...

  • Page 39: Outdoor Main Pcb Code Db92-04837D

    7-2 Outdoor Main PCB CODE DB92-04837D...

  • Page 41: Display Pcb

    7-3 DISPLAY PCB...

  • Page 42: 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 43: 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. u Main Parts Airflow blade (left and right) Air intake Air filter Power button/Remote control receiver Tri-care filter Room temperature sensor WindFree panel Display Airflow blade (up and down) NOTE...
  • Page 44 u Display Temperature indicator (numeric) Filter reset indicator ( Electricity consumption indicator (numeric / For the multi system, usage time indicator) Auto clean indicator ( Defrost indicator ( AI Auto indicator 03 04 Timer indicator good’sleep indicator Wi-Fi indicator Motion detect sensor NOTE • When the Wi-Fi is turned on, the indicator blinks three times and then turns on.

  • Page 45: Wireless Remote Control-Buttons And Display

    8-2 Wireless Remote control-Buttons and Display DB96-25924C Functions and Buttons Function Button and Selection Display Power On/ WindFree In Cool/Dry/Fan mode ▶ Cooling AI Auto ° ° ▶ ▶ Select Cool. Cool ° ▶ ▶ ▶ Select Fan. ▶ ▶ Select Heat. Heat In Cool or Heat mode ▶ In Cool or Heat mode ▶ ▶ ▶ Select Eco. ▶ In Cool or Heat mode ▶ ▶ Quiet ▶ Select Quiet. ▶...

  • Page 46: Charging The Remote Control

    Function Button and Selection Display In operation ▶ ▶ ▶ Select Settings. ▶ Display ▶ ▶ Lighting Select Lighting. ▶ ▶ Press and hold for 5 or more Wi-Fi (SmartThings) seconds. ▶ Press and hold for Wi-Fi (On/Off) 5 or more seconds. ▶ ▶ Select Timer/Good sleep. ▶ ▶ ▶ Select On timer or Off Timed on/off timer. ▶ ▶ (Set the duration.) ▶ In Cool or Heat mode ▶...

  • Page 47: Troubleshootin

    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 48: Communication Error

    9-2 Communication Error 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 49: 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 50: 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 51: 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? 2.

  • Page 52: 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? Model...

  • Page 53: 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 54: 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 55: 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 56: 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 57: 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 58: 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 59: 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 60: 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 61 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...

  • Page 62: 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 63: 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 64: 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 65: 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. 5) Check the PBA Relay - Display of indoor unit : Ensure that the operating pilot lamp has been lighted. - Ensure that the Relay input voltage of indoor unit PBA is normally.(If the PBA is defective, replace) 2.

  • Page 66: 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 67: Eev Or Valve Close Error (C422)

    9-2-19 EEV or VALVE CLOSE error (C422) 1. failure cause 1) Check for leakage using leakage detection liquid or soapy water. 2) If a leak is found in the service valve or piping connection flare nut part, take the relevant action and recheck the refrigerant and operation. 3) If the leakage part is a PIPE welding part, rewelding is performed after release of refrigerant gas to block the leakage part.

  • Page 68: Block Diagram

    10. Block Diagram 10-1 Indoor unit [INDOOR] WIRED REMOCO N MAIN PBA OUT MODULE MICOM(TMPM3HPFDFG) SENSOR CAP ZERO ROOM SENSOR WiFi MODULE(OPTION ) EMI FILTER HUMIDITY SENSO R DISPLAY EVA SENSOR REMOCON RECEIVER BLDC MOTOR DETECT SENSO R SMPS DETECT MAIN DC POER DC LOAD CONTROL (15V,12V,5V)

  • Page 69: Outdoor Unit

    10-2 Outdoor unit INVERTER BLOC K MAIN BLOCK SENSOR EEV1 DOWNLOAD MAIN CURRENT INVERTER MICOM SENSING UART COMM MICOM 4WAY V/V COMPRESSOR SMPS DRED HEATER SPEED OTN OPTION HIGH-PRESSURE INDOOR EEPROM 485 COMM SWITCH CURRENT CAPACITOR SENSING POWER PFCM FILTER RAC ONLY...

  • Page 70: Pre-Inspection Notices

    10-2-1 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 71: Outdoor Detailed Inspection Procedure

    10-2-4 Outdoor detailed inspection procedure Procedure Inspection Method Cause • Over current Plug out and pull the PCB 1) Is 1st fuse disconnected? • AC part and pattern short out of the control box. Check the PCB fuse (Wait 3 minutes of Outdoor PBA after power off) • Wrong assembly...

  • Page 72: 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. ■ Indoor Temp. Variation : 20°C ~ 32°C ■ Outdoor Temp. Variation : -5°C ~ 45°C 11-2 Pressure &...

  • Page 73: 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 74 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 conditioner 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. Generally, when the drain hose is taken out to the washing room or there are sources of smells such as a diaper bin, a shoe shelf or a socks bin, bad smells generate.
  • Page 75 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 76: Cleaning /Filter Change

    11-4 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: If the air conditioner is off, Auto clean starts immediately. If the air conditioner is running, Auto clean starts as soon as the air conditioner turns off.
  • Page 77 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 78 Slide the filter off of the unit. Use a soft brush or vacuum cleaner to remove any dust or debris on the filter. Soak the filter in a solution of water and mild detergent for 30 minutes. Rinse the filter and let it air dry in a well-ventilated area that is out of direct sunlight. Reinstall the filter.

  • Page 79: Installation

    11-5 Installation 11-5-1 Before Installation Keep the air conditioner outlet and inlet free from its surroundings.In case of installation, keep the symmetry and fix it to prevent vibration. The pipe length shall meet the standard as far as possible. 11-5-2 Installation Procedure ■ Location Install the product in an area to guarantee the best cooling eect, convenience of piping and elec- tric work, and inexistence of vibration or wind.

  • Page 80: Installation Diagram Of Indoor Unit And Outdoor Unit

    11-6 Installation Diagram of Indoor Unit and Outdoor Unit 11-6-1 12-6-1 Air-Purge Procedure 1) Connect each assembly pipe to the appropriate valve on Indoor unit Outdoor unit the outdoo 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 81 11-6-2 12-6-2 "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 82: Reference Sheet

    11-7. Reference Sheet Index for Model Name 10th 11th 12th 13th 14th Project Capacity Sell Feature Series Color Unit Export Item Item Reference Item Item Export 19 Year INVERTER HP R32 Export 20 Year INVERTER CO R32 Export 21 Year INVERTER HP R-410A Export 22 Year...
  • Page 83 China http://gspn2.samsungcsportal.com Asia Middleeast & Africa http://gspn1.samsungcsportal.com This Service Manual is a property of Samsung Electronics Co., Ltd. © Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under November 2022 applicable International and/or domestic law.

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