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Samsung AS12 XAX Series Service Manual
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Samsung AS12 XAX Series Service Manual

Samsung AS12 XAX Series Service Manual

Split-type air conditioner
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AIR CONDITIONER
AS12EWENSER
AS12UUBENXAX
AS12*****
Refer to the service manual in the GSPN(see the rear cover) for the more information.
SPLIT-TYPE AIR CONDITIONER
Basic : AS12UBANXAX/AS12UBAXXAX
Model: AS12**XAX AQ12**SER
Model Code : AS12UUBEN(X)XAX
AQ12TS*****
AQ12UGENSER
AS12TU*****
AQ12*****
AQ12 UUANMID / AQ12EAXSER
AS12**XVN AQ12**XCH
AS12**XAP
AQ12UGEN(X)SER
AQ12TSAN(X)SER
AQ12TSEAN(X)XCH
AQ12EWEN(X)SER
AS12TUBAN(X)XVN
AS12TUBAN(X)XAX
AS12TUBAN(X)XAP
CONTENTS
 good' sleep Mode
 Catechin Filter
 Silver Nano Evaporator
 Deodorizing Filter
 Anti-Bacterial Cross Fan

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Summary of Contents for Samsung AS12 XAX Series

  • Page 1 SPLIT-TYPE AIR CONDITIONER Basic : AS12UBANXAX/AS12UBAXXAX AQ12 UUANMID / AQ12EAXSER Model: AS12**XAX AQ12**SER AS12**XVN AQ12**XCH AS12**XAP Model Code : AS12UUBEN(X)XAX AQ12UGEN(X)SER AQ12TSAN(X)SER AQ12TSEAN(X)XCH AQ12EWEN(X)SER AS12TUBAN(X)XVN AS12TUBAN(X)XAX AS12TUBAN(X)XAP AIR CONDITIONER CONTENTS  good' sleep Mode  Catechin Filter AQ12TS***** AS12EWENSER  Silver Nano Evaporator ...

  • Page 2: Table Of Contents

    4-3-8 When the remote control is not receiving ................. 4-4 PCB Inspection Method 4-10 ........................4-4-1 Pre-inspection Notices ..........................4-10 4-4- Inspection Procedure ..........................4-10 4-4-3 Indoor Detailed Inspection Procedure ..................... 4-10 4-5 Main Part Inspection Method 4-11 ......................Samsung Electronics...
  • Page 3 8-1-.Display ................................19. Reference Sheet ..........................9-1 Refrigerating Cycle Diagram ......................9- Index for Model Name ........................9-3 Pressure & Capacity mark ........................ 9-4 Low Refrigerant Pressure Distribution ..................9-5 Installation Diagram of Indoor Unit and Outdoor Unit ............. Samsung Electronics...

  • Page 4: Product Specifications

    Catechin,extracted from the green tea,is contained in the filter and deactivates captured bacteria and unpleasant odors.  Silver Nano Evaporator  Deodorizing Filter Activated carbon is incorporated in the filter,efficiently absorbing cigarette smoke, pet odors, and other unpleasant smells, replacing them with clean,refreshing air.  Anti-Bacterial Cross Fan Samsung Electronics...

  • Page 5: Modified Items Compared With Basic Model

    AQ12EASER AS12UUBEXAX AQ12UGESER Indoor Design changed Indoor Front Display changed Outdoor chassis changed Basic model New model Modified New contents part and characteristic AS12UBAXAX AQ12EASER AS12EWESER AQ12TSASER AS12TSEAXCH Indoor Design changed Indoor Front Display changed Outdoor chassis changed Samsung Electronics...
  • Page 6 2-1-2 Modified items compared with Basic model Basic model New model Modified New contents part and characteristic AS12UBAXAX AQ12EASER AS12TUBAXVN AS12TUBAXAX/P Indoor Design changed Indoor Front Display changed Outdoor chassis changed Samsung Electronics...

  • Page 7: The Comparative Specifications Of Product

    Cooling Test Condition INDOOR UNIT: DB27°C/WB19°C , OUTDOOR UNIT: DB35°C/WB24°C Cooling operating condition INDOOR UNIT: 16°C to 32°C , OUTDOOR UNIT: 15°C to 43°C Heating operating condition INDOOR UNIT: 27°C or less , OUTDOOR UNIT: -5°C to 24°C Samsung Electronics...

  • Page 8: Accessory And Option Specifications

    DB98-32708A AQ12EWESER) DB98-32707A (AQ12UGESER) DB98-32707A (AQ12TSASER ) DB98-32712A (AQ12TSEAXCH ) DB98-32712A (AQ12TUBAXVN) User And Installation Manual DB98-32709A (AS12UUBEXAX) DB98-32709A (AS12TUBAXAX) DB98-32712A (AS12TUBAXAP) 2-3-2 Filter Image Part name Code no Remark DB63-02143C(Left) DB63-02144C(right) Pre-filter wash in water DB63-02755A(2 EA) (AS/Q12T*****) Samsung Electronics...

  • Page 9: Accessories

    (AS12UUBEXAX) Tape- I nst al (AS12TUBAXVN) (AS12TUBAXAX) (AS12TUBAXAP) Rubbe r Leg DB73-20134A 6002-000540 (AQ12TSEAXCH) M 4× 25m m (AS12UUBEXAX) (AS12TUBAXVN) (AS12TUBAXAX) (AS12TUBAXAP) DB67-00274A (AQ12TSEAXCH) (AS12UUBEXAX) (AS12TUBAXVN) (AS12TUBAXAX) (AS12TUBAXAP) (AQ12TSEAXCH) DB98-10568A (AS12UUBEXAX) Put t y 200g (AS12TUBAXVN) (AS12TUBAXAX) (AS12TUBAXAP) Samsung Electronics...

  • Page 10: Details For Operation Property

    *Protective function : Low temperature release. *Evaporator cleaning time can vary, depending on the (Prevention against freeze) previously used mode. 1) Auto(COOL),COOL,DRY MODE : approximately 30 minutes. 2) Auto(HEAT),HEAT,FAN MODE : approximately 15 minutes. Samsung Electronics...

  • Page 11: Disassembly And Reassembly

    3. Disassembly and Reassembly  Necessary Tools Item Remark +SCREW DRIVER MONKEY SPANNER Samsung Electronics...

  • Page 12: Indoor Unit

    FRONT.(use + Screw Driver) 4) Loosen connector wire(white) and detach the temperature sensor wire. 5) To detach the FRONT-PANEL the main frame, unfasten  screw at the bottom.(use + Screw Driver) 6) Take off the FRONT-PANEL,lifting up the bottom. Samsung Electronics...
  • Page 13 1) Unfasten the earth screw.(use + Screw Driver) ) Detach the temperature sensor and Humidity sensor. 3) Detach COVER-CONTROL from the CASE- CONTROL. 4) Loosen MPI connector wire(yellow), and MOTOR wires(white,blue). 5) Take off the CASE-CONTROL from the main frame. Samsung Electronics...
  • Page 14 1) Unfasten the screw. ) Cut the cable tie. 3) Loosen the terminal block wires. (Total 4EA: #N(1)-EA, #-1EA, #3-1EA)  Caution: The terminal is the locking type. So, when you separate terminals, pull pressing the button. Button Samsung Electronics...
  • Page 15  Option connector.  Caution: When you separate the connector, pull pressing the locking button. 7) Loosen the Relay #4 blue-connector(RY71).  Caution: The terminal is locking type. So, when you separate terminals, pull pressing the button. Button Samsung Electronics...
  • Page 16 When you separate the connector, pull pressing the locking button. 1) Take off the main PBA from the ASS’Y Control in.  Caution: When you take off the PBA, don’t touch the components. Please hold the PBA both side. Samsung Electronics...
  • Page 17 1) Unfasten the screw at the right side. (use + Screw Driver) ) Unfasten the screw at the left side. (use + Screw Driver) 3) Detach the HOLDER PIPE. 4) Take off the EVAPORATOR from the main frame. Samsung Electronics...
  • Page 18 ) unfasten the 3 points screws in the CASE- CONTROL, and then detach the CASE. (use + Screw Driver) 3) unfasten the screw a little.(use + Screw Driver) 4) Lift up the evaporator slightly and pull the CROSS-FAN to the left side. Samsung Electronics...

  • Page 19: Outdoor Unit

    Cover Control. 3) Separate the connection wire from the Terminal Block. 4) Loosen 6 fixing screws and separate the Cabinet Front. 5) Loosen 1 fixing screw of Ass’y E-part. 6) Loosen 1 fixing screws and separate the Cabinet-Side Samsung Electronics...
  • Page 20 Compressor 1) Open the Terminal Cover of Compressor and unscrew the Connection Terminal. ) Disassemble the inlet and outlet pipe of Compressor by welding. 3) Loosen 3 bolts of the lower part. 4) Separate the Compressor. 3-10 Samsung Electronics...

  • Page 21: Troubleshooting

    4. Troubleshooting 4-1 Setting Option Setup Method Samsung Electronics...
  • Page 22 4-1 Setting Option Setup Method(continue) Samsung Electronics...
  • Page 23 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 AQ12TSEAXCH REMOCON SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 MODEL SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 AQ12EWESER Samsung Electronics...

  • Page 24: Display Error And Check Method

    HUMIDITY SENSOR ERROR(IN TEST MODE) NO USED MPI FEED BACK ERROR  LED ON LED OFF LED BLINKING  " E16 " Error is displayed only in test mode. So, if you want to check,please push the power button of indoor unit. Samsung Electronics...

  • Page 25: Fault Diagnosis By Symptom

    35°C-6.94kΩ 40°C-5.83kΩ Connect the sensor to CN43, supply power, and measure the voltage of #1 and # of the CN43 connector. Below 0.5V? Poor ASS’Y PCB Replace Poor ASS’Y PCB Replace Over 4.9V? MICOM Error or Connector(CN43) check Samsung Electronics...

  • Page 26: 4-3- Indoor Heat Exchanger Temperature Sensor ErrorWhen Is Diplayed

    35°C-6.94kΩ 40°C-5.83kΩ Connect the sensor to CN43, supply power, and measure the voltage of #3 and #4 of the CN43 connector. Below 0.5V? Poor ASS’Y PCB Replace Over 4.9V? Poor ASS’Y PCB Replace MICOM Error or Connector(CN43) check Samsung Electronics...

  • Page 27: Indoor Fan Motor Speed Detecting ErrorWhen Is Diplayed

    Test rod location Normal Voltage PCB CN7 Condition About AC pin #3 and #5 Fan operate 180V Replace Motor Motor Fan-Capacitor is out of order Fan-Capacitor Fan motor Fan motor is out of order. should be replaced. Samsung Electronics...

  • Page 28: Eeprom Error Or Option Error

    Check as in the procedure "No power parts" Press the mpi button E186 is displayed? Normal Measure the voltage of #4 of the CN81 connector and # of the CN44 connector. Below 11V? Poor MPI Replace Poor Ass'y PCB Replace Samsung Electronics...

  • Page 29: No Power (Completely Dead)-Initial Diagnosis (Not Displayed)

    Replace fuse FUSE(F701) : T3.15[A]/50[V] or T.5[A]/50[V] Check the output of SMPS on the control board. Input power: AC30±15%[V] PCB should be replaced IC0 Input: DC1[V] IC0 output: DC5[V]  Check the setting temperature Samsung Electronics...

  • Page 30: When The Up/Down Louver Motor Does Not Operate. (Initial Diagnosis) (Not Displayed)

    When the voltage descends below 3V, the assembly module PCB is normal and the main PCB is poor. Then replace the main PCB. 3. Replace the assembly display PCB because the module PCB is poor if the voltage between No. 7~5 of CN91 maintains 5V after the remote control starts operation. 4-10 Samsung Electronics...

  • Page 31: Pcb Inspection Method

    ) The fan motor of the indoor unit doesn’t run. • Fan Motor Connector(CN7) is faulty 3) The power voltage between terminal #3 and #5 • ASS’Y Main PCB is faulty of the connector(CN7) is 0V. • Connection is faulty Samsung Electronics 4-11...

  • Page 32: Main Part Inspection Method

    ∞, 0Ω . . . Open or Short Stepping Motor Measure the resistance between the red wire and each terminal wire with a tester. Normal About 300Ω at the normal temperature (0˚C ~ 30˚C) Abnormal ∞, 0Ω . . . Open or Short 4-12 Samsung Electronics...
  • Page 33 Exploded Views and Parts List Operating Instructions and Installation 5. Exploded Views and Parts List 5-1 Indoor Unit AS12***/AQ12*** Samsung Electronics...
  • Page 34 6-8 DB94-01975A ASSY DRAIN HOSE ASSY DB94-00455B ASSY RUBBER-BEARING RUBBER DB94-01874A ASSY CROSS FAN ASSY(AS+GF20%) DB31-00531C MOTOR FAN 60HZ DB31-00531D MOTOR FAN 50HZ DB90-04385A ASSY COVER CONTROL IN SGCC-M DB61-03666A HOLDER-PIPE HIPS DB97-02851C ASSY PLATE HANGER SGCC-M DB93-11115K ASSY REMOCON ASSY Samsung Electronics...
  • Page 35 DB63-02121A TRAY-STABILIZER DB94-00458D ASSY DRAIN HOSE ASSY DB94-00455B ASSY RUBBER-BEARING RUBBER DB94-01874A ASSY CROSS FAN ASSY(AS+GF20%) DB31-00531D MOTOR FAN 50HZ DB90-04385A ASSY COVER CONTROL IN SGCC-M DB61-03666A HOLDER-PIPE HIPS DB97-02851C ASSY PLATE HANGER SGCC-M DB93-11115K ASSY REMOCON ASSY Samsung Electronics...
  • Page 36 DB63-02121A TRAY-STABILIZER DB94-01975A ASSY DRAIN HOSE ASSY DB94-00455B ASSY RUBBER-BEARING RUBBER DB94-01874A ASSY CROSS FAN ASSY(AS+GF20%) DB31-00531D MOTOR FAN 50HZ DB90-04385A ASSY COVER CONTROL IN SGCC-M DB61-03666A HOLDER-PIPE HIPS DB97-02851C ASSY PLATE HANGER SGCC-M DB93-11489C ASSY REMOCON ASSY Samsung Electronics...
  • Page 37 DB63-02121A TRAY-STABILIZER DB94-00458D ASSY DRAIN HOSE ASSY DB94-00455B ASSY RUBBER-BEARING RUBBER DB94-01874A ASSY CROSS FAN ASSY(AS+GF20%) DB31-00531C MOTOR FAN 60HZ DB90-04385A ASSY COVER CONTROL IN SGCC-M DB61-03666A HOLDER-PIPE HIPS DB97-02851C ASSY PLATE HANGER SGCC-M DB93-11115K ASSY REMOCON ASSY Samsung Electronics...
  • Page 38 Exploded Views and Parts List 5-2 Outdoor Unit AS12*** 11-1 11-4 11-2 11-5 11-3 Samsung Electronics...
  • Page 39 DB63-02310A COVER TERMINAL NORYL DB63-00817B GASKET EPDM,RUBBER DB35-00086S RELAY PROTECTOR DB60-00319A FLANGE-NUT M8,ZPC(WHT) DB63-02296A GROMMET ISOLATOR 44A,NR35 DB63-02059L FELT-COMP DB96-15279A ASSY COND ASSY DB96-14553A ASSY TUBE SUCTION ASSY DB96-14555A ASSY TUBE DISCHARGE ASSY DB96-14554A ASSY TUBE CAPILLARY ASSY Samsung Electronics...
  • Page 40 Exploded Views and Parts List 5-2 Outdoor Unit AQ12*** 11-6 11-1 11-4 11-2 11-5 11-3 Samsung Electronics...
  • Page 41 UR4D124DXEELSS COMPRESSOR,SET,R22,CN R22 6021-001142 NUT-HEXGON FLANGE M5,ZPC(YEL) DB63-02310A COVER TERMINAL NORYL DB63-00817B GASKET EPDM,RUBBER DB60-00319A FLANGE-NUT M8,ZPC(WHT) DB63-02296A GROMMET ISOLATOR 44A,NR35 DB63-02059M FELT-COMP DB96-11122A ASSY COND ASSY DB96-14442A ASSY VALVE 4WAY ASSY DB96-14442B DB96-11114C ASSY TUBE CAPILLARY ASSY DB96-11114G Samsung Electronics...
  • Page 42 Operating Instructions and Installation 8.Schematic Diagram 8-1.PCB Circuit Description 8-1-1.Indoor Unit Samsung Electronics...
  • Page 43 8-1.PCB Circuit Description 8-1-2.Display Samsung Electronics...

This manual is also suitable for:

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