Samsung AR07TXFYAWKNEU Service Manual
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Samsung AR07TXFYAWKNEU Service Manual

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AIR CONDITIONER
AR**TXFYWKNEU
AR09TX**WKNEU
AR12TX**WKNEU
AR**TXHZWKNEU
AR18TX**WKNEU
AR24TX**WKNEU
SPLIT-TYPE AIRCONDITIONER
INDOOR UNIT
MODEL CODE
AR07TXFYAWKNEU
AR07TXHZAWKNEU
AR09TXFYAWKNEU
AR12TXFYAWKNEU
AR09TXHZAWKNEU
AR12TXHZAWKNEU
AR18TXFYAWKNEU
AR18TXHZAWKNEU
AR24TXFYAWKNEU
AR24TXHZAWKNEU
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
AR09TXFYAWKXEU
AR12TXFYAWKXEU
AR09TXHZAWKXEU
AR12TXHZAWKXEU
AR18TXFYAWKXEU
AR18TXHZAWKXEU
AR24TXFYAWKXEU
AR24TXHZAWKXEU

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Summary of Contents for Samsung AR07TXFYAWKNEU

  • Page 1 SPLIT-TYPE AIRCONDITIONER INDOOR UNIT OUTDOOR UNIT MODEL CODE AR07TXFYAWKNEU AR07TXHZAWKNEU AR09TXFYAWKNEU AR09TXFYAWKXEU AR12TXFYAWKNEU AR12TXFYAWKXEU AR09TXHZAWKNEU AR09TXHZAWKXEU AR12TXHZAWKNEU AR12TXHZAWKXEU AR18TXFYAWKNEU AR18TXFYAWKXEU AR18TXHZAWKNEU AR18TXHZAWKXEU AR24TXFYAWKNEU AR24TXFYAWKXEU AR24TXHZAWKNEU AR24TXHZAWKXEU AIR CONDITIONER CONTENTS Precautions Product Specifications Alignment and Adjustments Disassembly and Reassembly AR**TXFYWKNEU AR**TXHZWKNEU...

  • 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. •...

  • 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: Installing The Air Conditioner

    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! Wind-Free Cooling Use the Wind-Free Cooling function to enjoy a mild breeze coming through fine holes in the Wind-Free panel instead of air coming directly through the air flow blades.

  • Page 7: Product Specifications

    2-2 Product specification Model AR09TXFYAWK/EU AR12TXFYAWK/EU AR09TXHZAWK/EU AR12TXHZAWK/EU Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted Wall-mounted T1 Cool 2500 3500 2500 3500 Capacity T3 Cool Heat 3200 3500 3200 3500 T1 Cool 1220 1220 Power Input T3 Cool Heat T1 Cool Current T3 Cool Heat...
  • Page 8 Model AR07TXFYAWKNEU AR07TXHZAWKNEU AR18TXFYAWKNEU AR24TXHZAWKNEU Rating Mode Unit Wall-mounted Wall-mounted Wall-mounted Wall-mounted T1 Cool 2000 2000 5000 6500 Capacity T3 Cool Heat 2200 2200 6000 7400 T1 Cool 1390 1950 Power Input T3 Cool Heat 1700 2350 T1 Cool Current...
  • Page 9 Model AR18TXHZAWKNEU AR24TXFYAWKNEU Rating Mode Unit Wall-mounted Wall-mounted T1 Cool 5000 6500 Capacity T3 Cool Heat 6000 7400 T1 Cool 1390 1950 Power Input T3 Cool Heat 1710 2350 T1 Cool Current T3 Cool Heat 10.5 3.60 3.33 Efficiency 3.51 3.15 Dehumidifying l/hr.

  • Page 10: The Comparative Specifications Of Product

    EASY CLEAN FILTER EASY CLEAN FILTER EASY CLEAN FILTER Indoor Display 88 SEG 88 SEG 88 SEG 88 SEG DEVELOPMENT MODEL Model AR18TXFYAWKNEU AR24TXHZAWKNEU AR07TXFYAWKNEU AR07TXHZAWKNEU Indoor Unit Design Outdoor Unit Indoor Unit 12.5 12.5 Net Weight Outdoor Unit 43.7 43.7...
  • Page 11 DEVELOPMENT MODEL Model AR18TXHZAWKNEU AR24TXFYAWKNEU Indoor Unit Design Outdoor Unit Indoor Unit 12.5 12.5 Net Weight Outdoor Unit 43.7 43.7 Indoor Unit 1055*299*215 1055*299*215 Net Dimension Outdoor Unit 880*638*310 880*638*310 Indoor Unit 48/58 dB↓ 51 / 62 dB↓ Noise Outdoor Unit 57 / 65 dB↓...

  • Page 12: Accessory And Option Specifications

    2-4 Accessory and Option Specifications Item Descriptions Code No. Q’ty Remark DB90-11453A (Q1, QF1) ASSY HANGER DB90-11454A (Q3) ASSY WIRELESS REMOCON DB96-24901F DB68-08616A (AR**T*FY***) Indoor unit case MANUAL USER DB68-08617A (AR**T*HZ***) MANUAL USER DB68-08595A MANUAL INSTALL DB68-08692CA Batteries for Remote controller 4301-000121 Rubber Leg DB67-01533A...

  • Page 13: 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 14 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 15: 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 16: 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 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.
  • Page 17 Method Display Press the button to set Dry 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 Fan mode.
  • Page 18 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 Press the button the display panel to . … Press the button repeatedly to select.
  • Page 19 . Setting option SEG20 Press the button the display panel to Press the button repeatedly to select . … Option code : Option code Model General Install AR07TXFYAWKNEU 011A05-1740DA-271416-371804 020000-100000-200101-300335 AR09TXFYAWK/EU 010205-1740EA-271920-371804 020000-100000-200101-300335 AR12TXFYAWK/EU 010205-1740FA-272323-371804 020000-100000-200101-300335 AR18TXFYAWK/EU 010205-15420B-27323C-372404 020000-100000-200101-300377...

  • Page 20: 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 21: 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 22 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 23 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 24 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.
  • Page 25 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 26 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 27 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 28 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 29 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 30 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 31: Outdoor Unit (N-V2Md)

    4-2. Outdoor Unit (N-V2MD) AR09TXFYAWKXEU AR09TXHZAWKXEU AR12TXFYAWKXEU AR12TXHZAWKXEU Parts Procedure Remark Common Work 1) First, stop the operation of the air conditioner, please cut off the supply of power. 2) Please separate outdoor after loosen the bottom screw 3EA of the front three places.
  • Page 32 Parts Procedure Remark 6) Please remove the screw 4ea located on the rear panel. (use + screwdriver) 7) Please separate the screw 2ea located on the side panel. (+ screw driver Use) 8) Please separate the screw 4ea located on the side panel. (+ screw driver Use) 9) Please remove the COVER CONTROL OUT downward.
  • Page 33 Parts Procedure Remark 10) Please allign the wire such as picture if you re-assemble after separate connector w ir e . If the connector is excessively folded, there is a risk of fire. 11) Please remove the CABINET SIDE upward direction. FAN &...
  • Page 34 Parts Procedure Remark 3) Remove the fixing points of the mo- tor SCREW 2ea, please disconnect the MOTOR turning coun- terclockwise. Capillary 1) Please remove the weld point in one place. (COND-OUT) If you remove the compressor and heat exchanger, eliminate the refriger- ant inside the compressor and heat exchanger completely with welding fire to remove...
  • Page 35 Parts Procedure Remark 2) Please separate the two sides fixing screws loose. (+ SCREW DRIVER Use) Compressor 1) Please disassemble one NUT counterclockwise (using MONKEY SPANNER) [OLP external compressor] 2) Disassemble COVER- TERMINAL after remove the OLP. BE CAUTION Engraved position : C (black), S (white), R (red) [OLP internal compressor]...
  • Page 36 Parts Procedure Remark ※ how to distinguish from OLP internal, external compressor : Check the compressor label 3) Please remove the compressor after loosen the compressor fixed NUT 3ea. (Using MONKEY SPANNER) 4) Please detach the two welds. (SUCTION, DISCHARGE)

  • Page 37: Outdoor Unit (Q)

    4-3 Outdoor Unit (Q) AR18TXFYAWKXEU AR18TXHZAWK/EU AR24TXHZAWKXEU AR24TXFYAWK/EU Parts Procedure Remark Common work 1) Loosen fixing screws from the cabi side Rh and detach it. 2) L oosen each sc rews and detach the Cabi Top Cover. 3) Loosen fixing screws from the cabi side. 4) Loosen fixing screws from the cabi side Rh and detach it.
  • Page 38 Parts Procedure Remark Common work 5) Loosen fixing screws from the 6) L oosen fixing screws from the Cabi left and detach it and Remove the 4 Cond Bar from the holderof outdoor unit cabinet.
  • Page 39 Parts Procedure Remark 1) Detach the Nut Flange like the picture on the right side. (Turn clockwise because the & screw is left-handed.) Motor (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 Assy Control Out and Motor.
  • Page 40 Parts Procedure Remark Assy 1) To remove the Cover control box : Pull the motor wire is allow sufficient space as shown Control Out on the right side and then remove the screw. 2) Detach several connectors from the Assy Control Out.
  • Page 41 Parts Procedure Remark Compressor 1 ) L o o s e n t h e n g n u t a n d d e t a c h t h e Compressor Lead Wire. (Use Monkey Spanner.) 2 ) L o o s e n t h e b o l t s a t t h e b o t t o m o f Compressor like the picture on the right side.

  • Page 42: Assy Control

    5. ASSY CONTROL 5-1 ASSY KIT CODE DB92-04845B ,F Model ASSY KIT Model ASSY KIT AR09TXFYAWKNEU AR09TXHZAWKNEU AR12TXFYAWKNEU AR12TXHZAWKNEU DB92-04845F AR07TXFYAWKNEU AR07TXHZAWKNEU DB92-04845B AR18TXHZAWKNEU AR24TXFYAWKNEU NAME CODE unit CASE CONTROL-IN DB61-07432A PLATE CONTROL-LF DB61-07431A PLATE CONTROL-LOW DB61-07428A PLATE CONTROL-UP DB61-07429A...

  • Page 43: Assy Kit Code Db92-04842A

    5-2 ASSY KIT CODE DB92-04842A Model ASSY KIT AR09TXFYAWKXEU AR12TXFYAWKXEU DB92-04842A AR09TXHZAWKXEU AR12TXHZAWKXEU NAME CODE Q’ty unit ASSY-THERMAL GREASE 0205-000178 0.002 SCREW-MACHINE (TB) 6001-000722 SCREW-TAPPING[N-V2MD] 6002-000231 (CLAMP) SCREW-TAPPING[N-V2MD] 6002-000239 (CASE) SCREW-TAPPING (PBA) 6002-000630 SCREW-TAPPING (EARTH) 6009-001001 ASSY-SCREW MACHINE (H/S) DB91-00933A HOLDER-WIRE CLAMP DB61-02200A RUBBER...

  • Page 44: Assy Kit Code Db92-04843A

    5-3 ASSY KIT CODE DB92-04843A Model ASSY KIT AR18TXFYAWKXEU DB92-04843A AR24TXFYAWKNEU NAME CODE Unit Remark ASSY-THERMAL GREASE 0205-000178 0.002 SCREW-MACHINE (TB) 6001-000722 SCREW-TAPPING 6002-000234 SCREW-TAPPING 6002-000239 SCREW-TAPPING 6002-000536 SCREW-TAPPING 6002-001306 SCREW-SPECIAL 6009-001001 ASSY-SCREW MACHINE DB91-00933A HOLDER-WIRE CLAMP DB61-00250A CASE CONTROL-UPPER DB61-04677A CASE CONTROL DB61-05917A...
  • Page 45 PLATE CONTROL DB61-04698B CABLE TIE DB65-10088D SPRING ETC-SENSOR DB81-00635A LABEL DB98-34030A HEAT SINK DB62-13009A TERMINAL BLOCK DB65-00274A TERMINAL BLOCK DB37-00036A ASSY CONNECTOR WIRE-POWER DB93-17207A ASSY CONNECTOR WIRE-COMM DB93-16402A ASSY CONNECTOR WIRE-COMP DB93-10905D ASSY CONNECTOR WIRE-REACTOR DB93-17175A ASSY CONNECTOR WIRE-EARTH DB93-12121B ASSY CONNECTOR WIRE-EARTH DB93-12121B SENSOR TEMP...

  • Page 46: Assy Kit Code Db92-04849A

    5-2 ASSY KIT CODE DB92-04849A Model ASSY KIT AR24TXHZAWKXEU DB92-04849A AR18TXHZAWKXEU Main materials list NAME CODE Unit Remark ASSY-THERMAL GREASE 0205-000178 0.002 SCREW-MACHINE 6001-000722 CLAMP 4EA SCREW-TAPPING 6002-000234 CLAMP 2EA, CASE 1EA SCREW-TAPPING 6002-000239 SCREW-TAPPING 6002-000630 EARTH SCREW-SPECIAL 6009-001001 ASSY-SCREW MACHINE DB91-00933A HOLDER-WIRE CLAMP DB61-00250A...
  • Page 47 SEAL DB62-11637T 0.153 SUPPORT-PCB DB61-04398A SCREW-TAPPING 6002-000527 SCREW-TAPPING 6002-000536 LABEL DB98-34030A HEAT SINK DB62-13008A TERMINAL BLOCK DB65-00274A TERMINAL BLOCK DB37-00036A TERMINAL BLOCK DB37-00036B TERMINAL BLOCK DB37-00027B ASSY CONNECTOR WIRE-POWER DB93-16371A ASSY CONNECTOR WIRE-POWER DB93-16371B ASSY CONNECTOR WIRE-COMM DB93-16402A ASSY CONNECTOR WIRE-COMP DB93-09497B ASSY CONNECTOR WIRE-AC SIGNAL DB93-17177A...

  • Page 48: Wiring Diagram

    6. Wiring Diagram 6-1 Indoor Unit AR09TXFYAWKNEU AR12TXFYAWKNEU AR09TXHZAWKNEU AR12TXHZAWKNEU AR07TXFYAWKNEU AR07TXHZAWKNEU CODE : DB68-08680A-01...

  • Page 49: Outdoor Unit

    6-2 Outdoor Unit CODE : DB68-08682A-01 CODE NO : DB68-08687A-00 AR09TXFYAWKXEU AR24TXHZAWKXEU AR12TXFYAWKXEU AR09TXHZAWKXEU AR12TXHZAWKXEU...

  • Page 50: Pcb Diagram

    7. PCB Diagram 7-1 INdoor Main PCB CODE - DB92-04839A DLX_QMD_Indoor Main PCB : DB92-04839A-E CN810 CN800 CN320 CN801 CN100 CN390 CN340 CN900 CNP100 CN230 CN100 : DISPLAY CN230 : DOWNLOAD CN340 : WIRED REMOCON #1 : LED_DIO #1 : COM1_RXD #1 : COM2_Tx #2 : +5V #2 : COM1_TXD...

  • Page 51: Outdoor Main Pcb

    7-2 Outdoor Main PCB CODE - DB92-04837A-E FP#2_20S_QMD_Out Door Main PCB : DB92-04837A-E CN700 CN380 CPN901 CN810 CN470 CN210 CN551 CN320 CN300 CNP402 CNP004 CNP052 CNP031 CNP051 CNP001 CNP003 CNP002 CN320 : SUB CPN901 : BLDC FAN CN810 : EEV-A CN470 : SENSOR CN700 : HEATER #1 : +5V_1...
  • Page 52 - DB92-04838A PCB MAIN : DB92-04838A CN380 CNP901 CNP401 CN210 CN800 CN70 CN810 CN470 CN320 CN051CN052 CN551 : DOWNLOAD CN210 : DOWNLOAD&JTAG CN380 : DRED CN320 : COMM CN470 : SENSOR #1 RXD #1 DRED 1 #1 5V #1 OUT_TH #2 TXD #2 DRED 2 #2 ENABLE...

  • Page 53: Display Pcb

    7-3 DISPLAY PCB - DB92-04833B...

  • Page 54: Wire Connecting The Indoor Unit Terminal Blocks

    7- 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 55: 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 AR**T**Y*WKN** 01 Air intake 05 Airflow blade (left and right) 02 Air filter 06 Power button/Remote control receiver 03 Wind-Free panel 07 Room temperature sensor 04 Airflow blade (up and down)
  • Page 56 u Display 01 Temperature indicator Filter reset indicator ( Auto clean indicator ( ) 02 Timer indicator good'sleep indicator 03 Eco indicator AR**TYHY*** 01 Temperature indicator (numeric) Filter reset indicator ( ) Electricity consumption indicator (numeric) Auto clean indicator ( ) 02 AI Auto indicator 03 Timer indicator good’sleep indicator...

  • Page 57: Wireless Remote Control-Buttons And Display

    8-2 Wireless Remote control-Buttons and Display DB96-24901F 01 Set temperature indicator 02 Timer option indicator 03 Operation mode indicator 04 Options indicator 05 Low battery indicator 06 Transmit indicator 07 Fan speed indicator 08 Wind-Free indicator 09 Vertical air swing indicator 10 Horizontal air swing indicator 11 Power button 12 Temperature button...

  • Page 58: 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 59: 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 60: 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 61: 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 62: 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 63: 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 64: 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 65: 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 66: 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 67: 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?

  • Page 68: 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 69: 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 70: 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 71: 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 72 Is the position of Correct the sensor position or temperature sensor and sensing exchange the sensor value normal? Is the compressor body Exchange the Outdoor PBA and interphase resistance insulated? Exchange the compressor...

  • Page 73: 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 74: 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 75: 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 76: 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 77: 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 78: Block Diagram

    10. Block Diagram 10-1 Indoor unit...

  • Page 79: Outdoor Unit

    10-2 Outdoor unit...
  • Page 80 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 81 10-2-4 Outdoor detailed inspection procedure Procedure Inspection Method Cause Plug out and pull the PCB 1) Is 1st fuse disconnected? • Over current out of the control box. Check • AC part and pattern short the PCB fuse (Wait 3 minutes of Outdoor PBA after power off) 1) Is the Compressor wire connected...

  • Page 82: 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 83: 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 84 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.
  • Page 85 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 86: 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: Auto clean function Use the Auto clean function if the indoor unit produces odors.
  • Page 87 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 Soft brush •...
  • Page 88 1 Slide the filter off of the unit. 2 Use a soft brush or vacuum cleaner to remove any dust or debris on the filter. 3 Soak the filter in a solution of water and mild detergent for 30 minutes. 4 Rinse the filter and let it air dry in a well-ventilated area that is out of direct sunlight.

  • Page 89: 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 ■...

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

    11-6 Installation Diagram of Indoor Unit and Outdoor Unit 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 91 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 92 Maintenance Procedures Performing the gas leak tests for repair • The entire refrigerant shall be recovered safely. • Before starting the process, oil and refrigerant In case of repair of the refrigerant circuit, the samples shall be taken just in case analysis is following procedure must be kept to consider required for reuse.

  • Page 93: 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 Export 22 Year Item...
  • Page 94 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 2019 applicable International and/or domestic law.

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