Samsung AJ009JNNDCH/AA Service Manual
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Samsung AJ009JNNDCH/AA Service Manual

Samsung AJ009JNNDCH/AA Service Manual

Multi air conditioner
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AIR CONDITIONER
MULTI AIR CONDITIONER
INDOOR UNIT
AJ009JNNDCH/AA
AJ012JNNDCH/AA
AJ018JNNDCH/AA
AJ007JNADCH/AA
AJ009JNADCH/AA
AJ012JNADCH/AA
AJ018JNADCH/AA
AJ024JNADCH/AA
AJ009JNLDCH /AA
AJ012JNLDCH/AA
AJ018JNLDCH/AA
AJ009NBNDCH/AA
AJ012NBNDCH/AA
AJ018NBNDCH/AA
CONTENTS
1. Precautions
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram and Parts List
6. Wiring Diagram
7. Reference Sheet
OUTDOOR UNIT
AJ020JCJ2CH/AA
AJ024JCJ3CH/AA
AJ036JCJ5CH/AA

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Summary of Contents for Samsung AJ009JNNDCH/AA

  • Page 1 MULTI AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AJ009JNNDCH/AA AJ020JCJ2CH/AA AJ012JNNDCH/AA AJ024JCJ3CH/AA AJ018JNNDCH/AA AJ036JCJ5CH/AA AJ007JNADCH/AA AJ009JNADCH/AA AJ012JNADCH/AA AJ018JNADCH/AA AJ024JNADCH/AA AJ009JNLDCH /AA AJ012JNLDCH/AA AJ018JNLDCH/AA AJ009NBNDCH/AA AJ012NBNDCH/AA AJ018NBNDCH/AA AIR CONDITIONER CONTENTS 1. Precautions 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram and Parts List 6.

  • Page 2: Table Of Contents

      Contents 11. 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 ..............................12. Product Specifications ....................... 2-1 The Feature of Product ........................
  • Page 3 An all pole disconnection from the power supply must be incorporated in the fixed wiring with a contact opening of >3mm. Do not extend an electric cord to the air conditioner. The air conditioner must be plugged in after you complete the installation. No Tapping and No Extension Cords Samsung Electronics...
  • Page 4 - Release the valve caps on High and Low pressure side. - Use L wrench to close the valve on the high pressure side. - Approximately 2 minutes after, close the valve on the low pressure side. - Stop operation of the air conditioner.- Disconnect the pipes. Samsung Electronics...
  • Page 5 Space saving & Environmental Friendly Reliability Smart & Low Noise outdoor units in any condition Double layered felt structure absorbs noise by two times and felt is also covering top of the compressor to reduce the noise even more. Samsung Electronics...
  • Page 6 Outer Dimension W*H*D 900*199*600 1100*199*600 Weight 23.3 29.0 Size 9.52 12.7 Refrigerant Pipe Liquid 6.35 Type Blower Fan Motor Size Φ92XL634 Φ92XL844.3 Type Blower Motor Capacitor uFxVAC Heat Exchanger Φ7,FP1.5,SLIT,NGS Φ7,FP1.3,SLIT,NGS 015201-14023E- 015201-160370- 011224-1940E6- Option Code 200001-300000 200001-300000 200001-300000 Samsung Electronics...
  • Page 7 Refrigerant Pipe 9.52 (3/8 inch) Type Cross Flow Fan Blower Fan Motor Size Φ98xL633 Type BLDC Blower Motor Capacitor uFxVAC Heat Exchanger Φ7, F.P1.3, H-fin, Hydrophille Φ7, F.P1.3, H-fin, hydro 010025-16623A- 010025-16624A- 010025-16626B- Option Code 271416-372A04 271920-372A04 272328-372B04 Samsung Electronics...
  • Page 8 Outer Dimension Net Size W*H*D(mm) 575 x 250 x 575 575 x 250 x 575 575 x 250 x 575 Size Refrigerant Pipe Type Turbo Fan Turbo Fan Turbo Fan Blower Heat Exchanger 2ROWx8STEP 2ROWx8STEP 2ROWx10STEP Refrigerant Control Device Samsung Electronics...
  • Page 9 Total Piping length Max. Length (ODU to IDU) Max. Height (OUD, more height) Model Total connecting pipe length (L) Adding refrigerant LT≤30m Chargeless AJ020JCJ2CH LT>30m (LT- 30m)x10g LT≤40m Chargeless AJ024JCJ3CH LT>40m (LT- 40m)x10g LT≤40m Chargeless AJ036JCJ5CH LT>40m (LT- 40m)x20g Samsung Electronics...
  • Page 10 45 dB AJ012JNADCH Indoor Unit AJ009JNNDCH 38 dB Noise AJ012JNNDCH 41 dB AJ009/012JNLDCH 37 dB AJ009/012NBNDCH 39/42 dB Outdoor Unit AJ020JCJ2CH 54 dB The Feature of Product Free Joint Multi(Variable Indoor Unit) BLDC INVERTER COMPRESSOR UG4T200FUAE4 Refrigerant Control Unit Samsung Electronics...
  • Page 11 Indoor Unit AJ009JNNDCH 38 dB Noise AJ012JNNDCH 41 dB AJ018JNNDCH AJ009/012/018JNLDCH 37 dB 39 /42 /45 dB AJ009/012/018NBNDCH Outdoor Unit AJ024JCJ3CH 54 dB The Feature of Product Free Joint Multi(Variable Indoor Unit) BLDC INVERTER COMPRESSOR G8T260FUAEW Refrigerant Control Unit Samsung Electronics...
  • Page 12 51 dB Indoor Unit AJ009JNNDCH 38 dB Noise AJ012JNNDCH 41 dB AJ018JNNDCH AJ009/012/018JNLDCH 37 dB AJ009/012/018NBNDCH 39/42/45 dB Outdoor Unit AJ036JCJ5CH 54 dB The Feature of Product Free Joint Multi(Variable Indoor Unit) BLDC INVERTER COMPRESSOR UG8T300FUBJU Refrigerant Control Unit Samsung Electronics...
  • Page 13 Insulation cover DB62-04318S Insu drain hose DB62-11028A DB62-11028E Indoor Unit Insu hose C/D DB62-11028D Ass'y Holder Drain Pipe DB90-06701A Hose Drain DB67-01191A CARD WARRANTY DB68-01675A GARANTIE CARD DB98-13261A The design and shape can be changed according to the model. Samsung Electronics...
  • Page 14 DB93-14643R Batteries for Remote 4301-000121 Control DB68-04992A User’s Manual Indoor Unit DB68-04993A Installation Manual DB67-01404A Cap Screws DB61-06101A Case Sub PCB DB68-01675A CARD WARRANTY DB98-13261A GARANTIE CARD The design and shape can be changed according to the model. Samsung Electronics...
  • Page 15 (Indoor Unit) DB68-04990A (AJ***JNNDCH) USER MANUAL DB68-07759A MANUAL USERS & INSTALL (AJ***NBNDCH) GARANTIE CARD DB98-13261A ASSY-INSTALLATION MANUAL DB68-04991A (AJ***JNNDCH) CARD WARRANTY DB68-01675A Essential Offer BOLT 6011-003975 (Panel) The design and shape can be changed according to the model. 2-10 Samsung Electronics...
  • Page 16 DB60-30010B pipe diameter (Only for AJ024JCJ3CH) DB68-04989A Installation Manual DB67-00788A Nipple Connector (Only for AJ024JCJ3CH) The design and shape can be changed according to the model. The design and shape can be changed according to the model. Samsung Electronics 2-11...
  • Page 17 Drain Plug Out DB67-00806A Energy Label DB68-05115A Rubber Leg DB73-20134A Cap Drain DB63-10355C Outdoor Unit DB68-05013A Installation Manual DB96-16155A Flare Nuts 3/8” DB96-16155B Flare Nuts 5/8” The design and shape can be changed according to the model. 2-12 Samsung Electronics...
  • Page 18 3. Disassembly and Reassembly ■ Necessary Tools Item Remark +SCREW DRIVER MONKEY SPANNER Samsung Electronics...
  • Page 19 2) Detach FILTER PRE from the PANEL FRONT. 3) Cover Panel is assembled on bottom of indoor unit as shown in the figure. Remove the Cap Screw as shown on the right side and then remove the screw and separate the Cover Panel. Samsung Electronics...
  • Page 20 5) Separate the hook after pushing both end of Cover Panel as shown in the figure. (Watch out for the damage of the hook) 6) Raise front part upward obliquely as shown in the figure and then remove the hooks Samsung Electronics...
  • Page 21 Remark Caution Assembly of Cover Panel after service end. - Reassembly is in the reverse order of the removal. - Piping and drain hose must be careful not to damage and Progress must be done with both hands. Samsung Electronics...
  • Page 22 4 HOOK Structures. When separate the hook : Use the (-) screw Driver. (-)Screw Driver Insert the hook and then pull the hook as shown on the right side. (Watch out for the damage of the hook) Samsung Electronics...
  • Page 23 Parts Procedure Remark 9) Remove the Panel Frame from the Main Frame as shown on the right side. Samsung Electronics...
  • Page 24 3) Loosen the terminal block wires. Caution: When you separate the connector,pull pressing the locking button. 4) Loosen the Thermistor wire connector, Display wire connector. Caution: When you separate the connector,pull pressing the locking button. Samsung Electronics...
  • Page 25 5) Take off the CASE-CONTROL from the main frame after loosen the remaining con- nector. Caution: When you separate the connector,pull pressing the locking button TRAY DRAIN 1) To detach TRAY-DRAIN from the main frame, pull the bottom of the TRAY- DRAIN towards you. Samsung Electronics...
  • Page 26 2) Unfasten the screw at the left side. (use + Screw Driver) 3) Unfasten the screw at the right side. (use + Screw Driver) 4) To detach Evaporator from the main frame, pull the bottom of the Evaporator towards you. Samsung Electronics...
  • Page 27 Remark FAN MOTOR 1) Unfasten the screw. (use + Screw Driver) CROSS FAN 2) Detach the FAN Motor case. 3) Unfasten the screw a little. (use + Screw Driver) 4) Pull the CROSS-FAN to the left side. 3-10 Samsung Electronics...
  • Page 28 1) Disassemble the Cabinet Top Motor. - Unscrew 8 screws Blower 2) Disassemble 2 Cover Blower Uppers. - After unscrewing 2 screws - Disassemble the Cover Blower Upper with pushing its hook. 3) Disassemble the Cover Control. - Unscrew 2 screws Samsung Electronics 3-11...
  • Page 29 Partition. - Unscrew a screw 6) Disassemble the band Motor for fixing the Motor. - Unscrew 2 screws 7) After disassembling the Motor and Blower for the set, disassemble the Blower by use of 3mm wrench. 3-12 Samsung Electronics...
  • Page 30 1) Disassemble the Cabinet Top Evap. - Unscrew 11 screws 2) Disassemble the Bracket Outlet Sub that fixes the Drain Pan equipped on the front of the set. - Unscrew 6 screws 3) Disassemble the Drain Cushion from the set. Samsung Electronics 3-13...
  • Page 31 - Unscrew 3 screws 2) Disassemble the refrigerant temperature sensor, Inlet air temperature sensor. 3) Disassemble the Support Evap. LF that fixes the Evaporator. - Unscrew 2 screws 4) Disassemble the Support Evap RH. - Unscrew 2 screws 3-14 Samsung Electronics...
  • Page 32 3) Disassemble the Case PCB from Case con- trol in - Unscrew 2 screws 4) In case of disassembling the Case Control,disassemble the Case Control from the set after unscrewing the screw connected to cover bottom fan. - Unscrew 2 screws Samsung Electronics 3-15...
  • Page 33 AJ018JNLDCH Parts Procedure Remark Filter 1) Pull out the Filter as picture 1 or picture 2. 3-16 Samsung Electronics...
  • Page 34 Blower 1) After disassembling 13 indicating screws, detach Ass’y Cabinet-Top Motor. Motor 2) After disassembling 3 indicating screws, detach Ass’y Case Blower Upper. – Press the pothook of the Case Blower and detach Ass’y Case Blower Upper. Samsung Electronics 3-17...
  • Page 35 Cover Control. 4) Detach the Motor Wire Connected to PCB and Capacitor. 5) After disassembling the indicating screws, detach the wire connected to the Partition. 6) After disassembling 2 indicating screws, detach the Ass’y Band Motor. 3-18 Samsung Electronics...
  • Page 36 Blowers from the axis of the Motor by 3mm inner hexagon spanner. Drain Pan 1) After disassembling 12 indicating screws, detach Ass’y Cabinet-Top Evap. 2) After disassembling 6 indicating screws, detach the Bracket Outlet. 3) Detach the Drain Pan. Samsung Electronics 3-19...
  • Page 37 - Unscrew 3 screws 2) Disassemble the refrigerant temperature sen- sor, Inlet air temperature sensor. 3) After disassembling 2 indicating screws, detach Ass'y Support Evap LF. 4) After disassembling 2 indicating screws, detach Ass'y Support Evap RH. 3-20 Samsung Electronics...
  • Page 38 3) Disassemble the Case PCB from Case con- trol in - Unscrew 2 screws 4) If only the disassembly of Case Control is required, detach it from the set after disassembling 2 indicating screws. Samsung Electronics 3-21...
  • Page 39 3) Remove the 2 fixed screws to remove the Control-Box Cover. (Use +Screw Driver) 4) Remove the Remocon-Receiver and Blade Connector Wire from the PBA. (3EA) 5) Push the 4 panel corners and cover downwards to remove it. 3-22 Samsung Electronics...
  • Page 40 1) Disconnect the Connector Wire that is con- nected to the indoor unit’s PBA 2) Unscrew the 2 fixed screws on both sides of the Control Box, and disassemble the Control Box from the indoor unit.(Use +Screw Driver) Samsung Electronics 3-23...
  • Page 41 Control-Box to remove it. Drain Pan 1) Unscrew the screws on the 4 corners of the indoor unit. (Use +Screw Driver) 2) Remove the Drain Pan from the indoor unit. 3-24 Samsung Electronics...
  • Page 42 Drain-Hose fixed on the side of the indoor unit. (Use +Screw Driver) 1) Use your hand to remove the temperature Evap. sensor attached to the Evap Pipe along with Temperature the fixing clip. Sensor Samsung Electronics 3-25...
  • Page 43 1) Remove the screws of the Steel Holder Evaps that are used to fix the Heat Exchanger, and then remove it. (Use +Screw Driver) 2) Remove the 2 fixing screws of the Partition Evap at the Heat Exchanger’s In/Out Pipe. (Use +Screw Driver) 3-26 Samsung Electronics...
  • Page 44 Parts Procedure Remark 3) Remove the screw of the Cover Pipe that is used to fix the In/Out Pipe. Remove the In/Out Pipe. (Use +Screw Driver) 4) Remove the Heat Exchanger from the indoor unit’s cabinet. Samsung Electronics 3-27...
  • Page 45 Loosen 2 fixing screws of the Ass'y Control Out. (Use +Screw Driver.) Loosen 6 fixing screws and detach the Cabinet Upper. (Use +Screw Driver.) Loosen 2 fixing screws, 7 bolts and detach the Cabinet Front. (Use +Screw Driver.) 3-28 Samsung Electronics...
  • Page 46 Parts Procedure Remark Loosen 2 fixing screw and pull up the Control Box. (Use +Screw Driver.) Pull the felt and detach it. Detach the Terminal Cover and detach the comp lead wire. Samsung Electronics 3-29...
  • Page 47 Release the refrigerant at first. Disassemble the Inlet and Outlet Pipe Compressor by welding. Loosen the fixing screw of the Heat Exchanger. (Use +Screw Driver.) Detach the Heat Exchanger. Loosen 3 nuts of the Compressor. (Use Monkey Spanner.) Detach the Compressor. 3-30 Samsung Electronics...
  • Page 48 Cabinet Side RH. (Use +Screw Driver) Cabi Front RH Unscrew and remove 6 mounting screw in the Cabinet Side RH. (Use +Screw Driver) Cabi Top Unscrew and remove 9 screws on each side of the Cabinet-Top. (Use +Screw Driver) Samsung Electronics 3-31...
  • Page 49 1) Pull the sensor from Cabi Back RH. 2) Unscrew and remove 5 screws on each side of the Cabinet Back RH. ( Use + Screw Driver ) 3) Pull the hook of Cabi Back RH from the Bracket Valve. 3-32 Samsung Electronics...
  • Page 50 1) Unscrew and remove 2 screws Support in the plate Case control Support. ( Use + Screw Driver ) Cabi Back RH 1) Unscrew and remove 10 screws in the Cabinet-Front LF ( Use + Screw Driver ) Samsung Electronics 3-33...
  • Page 51 1) Separate the Fan Propeller. 2) Unscrew and remove the 8 Motor mounting screws. (Use +Screw Driver) 3) Disconnect the Motor wire From Ass'y Control Out. Bracket Motor 1) Unscrew and remove 2 mounting screws in Bracket Motor. (Use +Screw Driver) 3-34 Samsung Electronics...
  • Page 52 Parts Procedure Remark Control Out Disconnect 9 Connecters From Ass'y Control Out. Unscrew and remote 2 mounting screw in Control Out.(Use + Screw Driver) Separate Ass'y Control Out Samsung Electronics 3-35...
  • Page 53 1) Separate the pipe from the Entrance/ Exit using a welder. 2) Unscrew and remove 2 mounting screws in Service Valve. (Use +Screw Driver) Compressor 1) Unscrew and remove 1 mounting nut in Cover Terminal. (Use Adjustable Wrench) 3-36 Samsung Electronics...
  • Page 54 3) As shown in the picture, unscrew and remove 3 mounting screws from the bottom. (Use Adjustable Wrench) Cond Out 1) Unscrew and remove 3 screws on each side of the Assy Cond Out. (Use +Screw Driver) Samsung Electronics 3-37...
  • Page 55 MEMO 3-38 Samsung Electronics...

  • Page 56: Troubleshooting

    Detection of the float switch EEPROM error EEPROM option error Motion detect sensor error Mixed operation error ● On Flickering X Off ◆ If you turn off the air conditioner when the LED is flickering, the LED is also turned off. Samsung Electronics...
  • Page 57 X Off ◆ If you turn off the air conditioner when the LED is flickering, the LED is also turned off. ◆ If you re-operate the air conditioner, it operates normally at first, then detect an error again. Samsung Electronics...
  • Page 58 X Off ◆ If you turn off the air conditioner when the LED is flickering, the LED is also turned off. ◆ If you re-operate the air conditioner, it operates normally at first, then detect an error again. Samsung Electronics...
  • Page 59 X Off ◆ If you turn off the air conditioner when the LED is flickering, the LED is also turned off. ◆ If you re-operate the air conditioner, it operates normally at first, then detect an error again. Samsung Electronics...
  • Page 60 Outdoor valve clogging error Miss matching error between indoor unit and outdoor unit : On, : Flickering, X : Off ・ If you turn off the air conditioner when the LED is flickering, the LED is also turned off. Samsung Electronics...

  • Page 61: Outdoor Unit

    Compressor OLP sensor error (Short/Open) - Error condition : outdoor temperature under -20°C - Error level : over 4.95V(-30°C) under 0.5V(151°C) EvaIn1 Sensor Short/Open EvaIn2 Sensor Short/Open EvaIn3 Sensor Short/Open EvaIn4 Sensor Short/Open EvaIn5 Sensor Short/Open EvaOut1 Sensor Short/Open Samsung Electronics...
  • Page 62 Over current Compressor Vlimit Error DC link Voltage error (under 150V, over 410V) Abnormal compressor running (Compressor Rotation Error) Current sensor error DC link Voltage sensor error Outdoor unit EEPROM Error Inverter micom zero-crossing error Over voltage Error Samsung Electronics...

  • Page 63: Setting Option Setup Method

    6. Press operation button with the direction of remote control for set. EX) Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same time. Samsung Electronics...
  • Page 64 1. Press Low Fan button to enter SEG23 value. 2. Press High Fan button to enter SEG24 value. * Step 12 Press Mode button to check whether the option code you entered is correct or not. Press operation button to enter option. Samsung Electronics...
  • Page 65 Display Indication Details Indication Details Indication Details Indication Details Indication Details Indication Details No RMC address Indication and Details RMC1 RMC2 address setting mode ※ You must set RMC address setting mode when using the centralized Control . Samsung Electronics...
  • Page 66 Indication and Details ▶ If you input a number other than 0~4 of the individual control of the indoor unit(SEG20), the indoor is set as "indoor 1". 1) The window on/off function applies to the following unit - AJN**/AR** 4-10 Samsung Electronics...

  • Page 67: Changing A Particular Option

    20343C SEG19~24 300000 300000 300040 SEG25~30 020000 020000 020000 SEG31~36 120000 120000 120000 SEG37~42 200000 200000 200000 SEG43~48 300100 300100 300100 SEG49~54 030000 030000 030000 SEG55~60 100000 100000 100000 SEG61~66 200000 200000 200000 SEG67~72 300000 300000 300000 Samsung Electronics 4-11...

  • Page 68: Items To Be Checked First

    The compressor stops intermittently or the fan speed of the COOL mode or DRY mode, and fan speed of the indoor unit decreases to prevent inside/outside air frozen indoor unit decreases. depending on the inside/outside air temperature. 4-12 Samsung Electronics...
  • Page 69 At this point it is possible to start the internal units in the desired mode display 1 shows in sequence: 00→ 01→02 →...15→ 00... If " "doesn’t display, the procedure has failed and it is therefore necessary to read ALL the operator’s manual before repeating the operating described in steps 1-2-3-4. Samsung Electronics 4-13...
  • Page 70 02--communication with indoor unit C; 03--communication with indoor unit D; ※ In case of Manual address mode,you can do pipe check operation for check whether you connect the pipes correctly or not. But you need set indoor address switch yourselves. 4-14 Samsung Electronics...
  • Page 71 Heating mode (indoor unit check) --> Outlet air temp. - Inlet air temp: From 11°K to 14°K (indicative delta T) In heating mode, the indoor fan motor can remain off to avoid cold air blown into conditioned space. Samsung Electronics 4-15...

  • Page 72: Checking And Testing Operation

    Selection AJ020JCJ2CH AJ024JCJ3CH AJ036JCJ5CH Switch 14.0A 16.6A 23.0A (Default) (Default) (Default) (OFF) Display of the external unit 13.0A 14.0A 20.0A (OFF) AJ036JCJ5CH 10.0A 11.0A 18.0A (OFF) 8.5A 10.0A 16.0A (OFF) Display 1 Display 2 Switch Rotary Switch 4-16 Samsung Electronics...
  • Page 73 Fan RPM (H: high, L: low, Blank: off) Safety Control (just For Service Technician) The EEV 2 and EEV 3 of AJ020JCJ2CH model is always displayed as blank The EEV 3 of AJ024JCJ3CH model is always displayed as blank Samsung Electronics 4-17...
  • Page 74 -It means you didn ’t do “Pipe check operation“ displaying as below. Button [K1] 1 times DIS 01 DIS 02 Display [DIS 01 ] is flickering on the setting time. Outdoor Temperature or more less than Time duration (Cool mode) (Heat mode) 5min~10min 20min~50min 4-18 Samsung Electronics...
  • Page 75 - On this mode the controller will ignore the manual address number set on the rotary switch on the indoor PCB. - To confirm the indoor address number assigned by this mode, use "TESTMODE" and the address number will be displayed on the LED display on the indoor unit. Samsung Electronics 4-19...
  • Page 76 Indoor unit heat exchanger in temperature sensor error (open/short) E237 Condenser temperature sensor error (open/short) E251 Compressor Discharge temperature sensor error (open/short) E251 Compressor OLP sensor error (open/short) E320 Please, The System turn off and replace sensor which is related. Guidance 4-20 Samsung Electronics...
  • Page 77 Replace outdoor unit’s ass’y control or indoor unit’s Step 2 EEV Coil ass’y control. Basically, This error caused by communication between Indoor Units and Outdoor Unit. Guidance First of all, check the all communication connection and PCB’s status. Samsung Electronics 4-21...
  • Page 78 This is caused by protection mode behavior. Analysis This is indoor Evaporator Freezing protection mode. Step 1 Please, check indoor unit, whether inlet or outlet grill is closed. Step 2 Please, check indoor unit, whether indoor fan is working. 4-22 Samsung Electronics...
  • Page 79 Error code. Check point Remarks These Error codes only apply with Try-run mode, in case of system have some defect as result of try-run operation. Analysis Refer to self-detection algorithm (Check Error Code meaning and check it out) Samsung Electronics 4-23...

  • Page 80: Fault Diagnosis By Symptom

    4-5 Fault Diagnosis by Symptom 4-5-1 Indoor 4-5-1-1 Indoor temperature sensor (open/short) 4-24 Samsung Electronics...

  • Page 81: Indoor Fan Error ( Bldc Motor Model )

    4-5-1-2 Indoor FAN Error ( BLDC MOTOR MODEL ) Samsung Electronics 4-25...

  • Page 82: Communication Error After Finishing Tracking

    4-5-1-3 Communication error after finishing Tracking 4-26 Samsung Electronics...

  • Page 83: Eeprom Circuit Failure

    4-5-1-4 EEPROM circuit failure Samsung Electronics 4-27...

  • Page 84: Outdoor Unit Is Not Powered On - Initial Diagnosis(1Phase)

    3) Are the LEDs in the main PCB and inverter PCB of the outdoor unit ON? 4) Is the input power voltage of the indoor unit 220V? 5) Is the wired remote controller connected correctly? 2. Check procedure Turn off the main power switch 4-28 Samsung Electronics...

  • Page 85: Outdoor Unit Fan Error

    3) Are the indoor/outdoor fuses connected? 4) Are there any obstacles near the motor or propeller? 5) Is the motor driver out of order? 6) AJ020/024 Model check CN901 , AJ036 Model Check CN 90 2. Check procedure Samsung Electronics 4-29...

  • Page 86: Compressor Startup Error, Compressor Lock Error, Compressor Rotation Error

    1) Are the power supply and compressor connecting wires connected correctly? 2) Is the inter-phase resistance of the compressor normal? 2. Check procedure Checking Comp Resistance ( Normal value ) AJ020JCJ2CH 0.5~1.1Ω 0.5~1.1Ω 0.5~1.1Ω AJ024JCJ3CH 0.2~0.6Ω 0.2~0.6Ω 0.2~0.6Ω AJ036JCJ5CH 0.1~0.5Ω 0.1~0.5Ω 0.1~0.5Ω 4-30 Samsung Electronics...

  • Page 87: Ipm Over Current Error

    Checking Comp Resistance ( Normal value ) AJ020JCJ2CH 0.5~1.1Ω 0.5~1.1Ω 0.5~1.1Ω AJ024JCJ3CH 0.2~0.6Ω 0.2~0.6Ω 0.2~0.6Ω AJ036JCJ5CH 0.1~0.5Ω 0.1~0.5Ω 0.1~0.5Ω Turn off the power and reconnect the table. Turn off the power and correct or replace the temperature sensor location Samsung Electronics 4-31...

  • Page 88: Checking Temperature Sensor

    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. Troubleshooting procedure 4-32 Samsung Electronics...

  • Page 89: Outdoor Out/Cond Temperature Sensor Error

    Press K4 key on the outdoor display PCB for several time to change the display to current EEV value. Left 1 digit of the LED is data index and Right 3 digits is the value. Index Value Remark EEV-A step AJ020JCJ2CH The step value range is AJ024JCJ3CH EEV-B step between Zero and 480. EEV-C step Samsung Electronics 4-33...
  • Page 90 The parts should be replaced in the following procedure. Check for any faulty part. Detach the faulty part. Replace it with a new part. Set an address. Check the operation of the new part. The repair is completed. 4-34 Samsung Electronics...

  • Page 91: Pcb Diagram And Parts List

    Display : SMW200-11(WHT) : SMW200-11(WHT) Power : YW396-03AV(WHT) External Control(Display Part) : SMW250-04(RED) Transformer Out : YW396-03AV(WHT) HALL IC : SMW250-03(BLU) Main Power In : YW396-03AV(BLU) MICOM Download : SMW200-10(WHT) Power : YW396-03AV(BLU) Indoor/Outdoor Communication : YW396-02(RED) Transformer In : SMW250-03(RED) Samsung Electronics...
  • Page 92 2-5: Louver control signal 3:SPI CONTROL 2:DRAOM_PUMP_OUT 6:DV12V 4:Not Used 7-10:Louver control signal (13) Human Sensor (14) External (15) External (16) COM1,COM2,V1,V2 1:DC12V 1,3:DC12V 1:EXT_CTRL F3-F4: Com2 2:Com4_TXD 2:Error_CHK_OUT 2:GND V1-V2:DC12V 3:Com4_RXD 3:Comp_CHK_OUT F1-F2:Com1 4:Human sensor reset 5:GND Samsung Electronics...
  • Page 93 Panel PCB ① CN01-DISPLAY #1 : DC 12V #2~5 : LED control signal #6 : Remocon signal out #7~8 : Not used #9 : Remocon signal IN #10: GND #11: DC 5V Samsung Electronics...
  • Page 94 AJ007JNADCH/AJ009JNADCH/AJ012JNADCH/AJ018JNADCH/AJ024JNADCH ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ Samsung Electronics...
  • Page 95 #2: ERROR OUT (GND) #5 : GND #3: LED_1 #3: DC12V #4: LED_2 #4: COMP/OPER. OUT (GND) #5: LED_3 #6: LED_4 #7: LED_5 #8: REMOCON OUT #9 : AUTO SWITCH #10: REMOCON IN #11: GND #12: DC5V #13: GND Samsung Electronics...
  • Page 96 CN311-2 WIRED SUB CN401-HUMAN SENSING CN801-SPI TE04-COMMUNICATION #1: DC12V #1: GND #1: COM1(F1) #2: MAIN-HUMAN SENSOR #2: GND #2: COM1(F2) COMM(TXD) #3: SPI SIGNAL (DC12V) #3: V1(DC12V) #3: MAIN-HUMAN SENSOR COMM(RXD) #4: V2(GND) #4: GND #5: COM2(F3) #6: COM2(F4) Samsung Electronics...
  • Page 97 ■ AJ***NBNDCH/AA -DISPLAY PCB CN808-EEV ① #1: DC12V #2: LED_Operation #3: LED_Defrost #4: LED_Timer #5: - #6: LED_Filter #7: - #8: Remocon Signal Out #9 : Panel Select #10: Remocon Signal In #11: GND #12: DC5V #13: - Samsung Electronics...
  • Page 98 5-2. Outdoor Unit AJ020JCJ2CH/AJ024JCJ3CH Samsung Electronics...
  • Page 99 #6 INV. SMPS signal CN31 - COMM CN33-Sub Comm CN37-MICOM DOWN CN35- AS PROM #1 : COM1 #1 DC12V #1~#10 MICOM DOWN #1~#7 MICOM DOWN #2 : COM2 #2 GND (AS PRO USING) #3 DC5V #4 COM1 #5 COM2 Samsung Electronics...
  • Page 100 AJ036JCJ5CH INVERTER PCB 6 4 7 5 ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ Samsung Electronics...
  • Page 101 CN51 EVA IN SENSOR CN83-EEV D CN84-EEV E #1~#2 EVA IN A #1~#4 EEV signal #1~#4 EEV signal #3~#4 EVA IN B #5 DC 12V #5 DC 12V #5~#6 EVA IN C #7~#8 EVA IN D #9~#10 EVA IN E Samsung Electronics...

  • Page 102: Indoor Unit

    6. Wiring Diagram 6-1. INDOOR UNIT AJ009JNNDCH/AJ012JNNDCH/AJ018JNNDCH This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 103 AJ007JNADCH/AJ009JNADCH/AJ012JNADCH/AJ018JNADCH/AJ024JNADCH This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 104 AJ009JNLDCH/AJ012JNLDCH/AJ018JNLDCH This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 105 AJ***NBNDCH/AA This Document can not be used without Samsung's authorization. 6-11 Samsung Electronics...
  • Page 106 6-2. OUTDOOR UNIT AJ020JCJ2CH/AJ024JCJ3CH Samsung Electronics...
  • Page 107 AJ036JCJ5CH Samsung Electronics...
  • Page 108 MEMO Samsung Electronics...
  • Page 109 It is harmful to the air conditioner if it is used in the following environments: greasy areas (including areas near machines), salty areas such as coast areas,areas where sulfuric gas is present such as hot spring areas. Contact your dealer for advice. Samsung Electronics...
  • Page 110 2 Make sure that you put the remote control unit in an area not exposed to direct sunlight, and where there is no source of heat. 3 Make sure that you use the remote control unit in an area away from TVs, audio units, cordless phones, fluorescent lighting fixtures and other electrical appliances (at least 1 meter). Samsung Electronics...
  • Page 111 6 Mount the valve stem nuts and the service port cap to the torque wrench. 7 Check for gas leakage. - At this time, especially check for gas leakage from the 3-way valve’s stem nuts, and from the service port cap. Samsung Electronics...
  • Page 112 7) Stop operation of the air conditioner. 8) Close the 3 way valve, disconnect the pressure gauge, and open the 3 way valve again. 9) Close the cap of each valve. Samsung Electronics...
  • Page 113 7-5 Flare Nut Fixing Torque Torque Outer Diameter (D) Thickness N·m ft·lb(kgf·cm) ø6.35 mm(1/4") 0.8 mm(0.03 ") 14~18 10.1~13.0(140~180) ø9.52 mm(3/8") 0.8 mm(0.03 ") 34~42 25.3~31.1(350~430) ø12.70 mm(1/2") 0.8 mm(0.03 ") 49~61 36.2~44.8(500~620) ø15.88 mm(5/8") 0.8 mm(0.03 ") 68~82 49.9~60.0(690~830) Samsung Electronics...
  • Page 114 6. Make sure you do not bend the connection pipes in the middle and store together with the cables. 7. Move the indoor and outdoor units to a new location. 8. Remove the mounting plate for the indoor unit and move it to a new location. Samsung Electronics...
  • Page 115 Grade MSP DUCT Code Type LSP DUCT FLAGSHIP FRESH AIR INTAKE DUCT PREMIUM RAC-A3050(EEV) DELUXE RAC-NEO FORTE(EEV) STANDARD RAC-NEO FORTE RAC-Domestic RAC-MALDIVE RAC-A3050 RAC-Crystal / can be removed from the buyer card if there are not enough digits. Samsung Electronics...
  • Page 116 IFREE JOINT MULTI PACK MULTI DVM HOME Grade Code Type 2 Room 3 Room 4 Room 5 Room Multi Room PMA is FJM Model. / can be removed from the buyer card if there are not enough digits. Samsung Electronics...
  • Page 117 7-8 Refrigerating Cycle Diagram AJ020JCJ2CH CYCLE DIAGRAM AJ024JCJ3CH CYCLE DIAGRAM Samsung Electronics...
  • Page 118 AJ036JCJ5CH CYCLE DIAGRAM 7-10 Samsung Electronics...
  • Page 119 Heat exchanger; A device, used to transfer heat from a fluid on one side of a barrier to a fluid ASS’Y EVAP/ASS’Y COND on the other side without bringing the fluids into direct contact. (Full name : assemble evaporator / assemble condenser) Samsung Electronics 7-11...
  • Page 120 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 121 Set up a sun blind over the outdoor unit and clear the neighboring obstacles from the outdoor unit to provide good ventilation. When it goes off frequently during a heat wave, it would prevent the turn-off and increase the cooling capacity cleaning the outdoor unit or spraying some water to the heat exchanger. Samsung Electronics 7-13...
  • Page 122 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 123 But generally the value of fresh indoor temperature is that below 0.2(m/s) of indoor air circulation, the temperature is 21~28 C when the wall temperature is the same as the indoor's and relative humidity is 30~31% in summer, the winter temperature is 20~24 C and relative humidity is 30~60% in winter. Samsung Electronics 7-15...
  • Page 124 © Samsung Electronics Co., Ltd. 2018. This Service Manual is a property of Samsung Electronics Co., Ltd. Printed in China. Any unauthorized use of Manual can be punished under applicable International and/or domestic law.

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