Samsung AQ12 SER Series Service Manual Download Page 21 | Manualshive

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Samsung Electronics

4-1

4-1 Setting Option Setup Method

4. Troubleshooting

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Summary of Contents for AQ12 SER Series

Page 1: ...12UUANMID AQ12EAXSER Model AS12 XAX AQ12 SER Model Code AS12UUBEN X XAX AQ12UGEN X SER AS12 AS12UUBENXAX AQ12UGENSER AQ12 good sleep Mode Catechin Filter Silver Nano Evaporator Deodorizing Filter Anti Bacterial Cross Fan AQ12TSAN X SER AQ12TSEAN X XCH AQ12EWEN X SER AS12TUBAN X XVN AS12TUBAN X XAX AS12TUBAN X XAP AS12 XVN AQ12 XCH AS12 XAP AS12EWENSER AQ12TS AS12TU ...

Page 2: ...4 Troubleshooting 4 1 4 1 Setting Option Setup Method 4 1 4 2 Display Error and Check Method 4 3 4 2 1 Display Error mode 4 3 4 3 Fault Diagnosis by Symptom 4 4 4 3 1 Indoor Temperature Sensor Error When is diplayed 4 4 4 3 2 Indoor Heat Exchanger Temperature Sensor Error When is diplayed 4 5 4 3 3 Indoor Fan Motor Speed Detecting Error When is diplayed 4 6 4 3 4 EEPROM Error or Option Error 4 7 4...

Page 3: ...CB 6 2 6 1 3 Indoor Display PCB 6 3 6 2 Electrical Parts List 6 4 17 Wiring Diagram 7 1 18 Schematic Diagram 8 1 8 1 PCB Circuit Description 8 1 8 1 1 Indoor Unit 8 1 8 1 2 Display 8 2 19 Reference Sheet 9 1 9 1 Refrigerating Cycle Diagram 9 1 9 2 Index for Model Name 9 2 9 3 Pressure Capacity mark 9 3 9 4 Low Refrigerant Pressure Distribution 9 4 9 5 Installation Diagram of Indoor Unit and Outdoo...

Page 4: ...ter 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 2 1 1 The Feature of Product ...

Page 5: ...l New model AS12UBAXAX AQ12EASER AS12UUBEXAX AQ12UGESER Indoor Indoor Design changed Front Display changed Outdoor chassis changed Modiﬁed part New contents and characteristic Basic model New model AS12UBAXAX AQ12EASER AS12EWESER AQ12TSASER Indoor Indoor Design changed Front Display changed Outdoor chassis changed AS12TSEAXCH ...

Page 6: ...d with Basic model Samsung Electronics 3 Modiﬁed part New contents and characteristic Basic model New model AS12UBAXAX AQ12EASER AS12TUBAXVN Indoor Indoor Design changed Front Display changed Outdoor chassis changed AS12TUBAXAX P ...

Page 7: ...50 D L mm 18 2000 18 2000 18 2000 Φ7 0 2R 10S 605 Φ7 0 2R 10S 605 1 44 590 Φ9 52 1Rx18Sx648 g R22 510 R22 810 R22 650 cc 340 340 340 Capillary tube Capillary tube Capillary tube UR4B124IXEEL Rotary UR4D124DXEEL Rotary 44B092HXAEL Rotary INTERNAL UP3 42 1stage UP3 42 INTERNAL 1stage INDOOR UNIT 16 C to 32 C OUTDOOR UNIT 15 C to 43 C type MODEL ITEM Development Model Design Indoor Unit Outdoor Unit ...

Page 8: ...re acondicionado dom Žstico sistem a Split C ondizionatore d aria peram bientiad unitˆSeparate A parelho de arcondicionado tipo Split C lim atiseurde type sŽparŽ G eteilte raum klim aanlage User And Installation Manual DB98 32709A AS12UUBEXAX DB98 32707A AQ12UGESER 1 2 3 2 Filter DB93 11489C AQ12EWESER DB98 32708A AQ12EWESER DB98 32707A AQ12TSASER DB98 32712A AQ12TSEAXCH DB98 32712A AQ12TUBAXVN DB...

Page 9: ...000540 6 2m DB67 00274A 1 Put t y 200g DB98 10568A 1 DB39 00981A AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX AS12TUBAXAP AS12UUBEXAX AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX AS12TUBAXAP AS12UUBEXAX AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX AS12TUBAXAP AS12UUBEXAX AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX AS12TUBAXAP AS12UUBEXAX AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX AS12TUBAXAP AS12UUBEXAX AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX...

Page 10: ...n runs When the air conditioner is turned on The Evaporator clean indicator on the indoor unit display appears and the Evaporator cleaning function runs after stopping the air conditioner operation Evaporator cleaning time can vary depending on the previously used mode 1 Auto COOL COOL DRY MODE approximately 30 minutes 2 Auto HEAT HEAT FAN MODE approximately 15 minutes 6 GOOD SLEEP MODE Default go...

Page 11: ...Samsung Electronics 3 1 3 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKEY SPANNER ...

Page 12: ...and shut off main power supply 2 Open the FRONT GRILLE and pull out from the PANEL FRONT 3 Detach COVER TERMINAL from the PANEL 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 2 screw at the bottom use Screw Driver 6 Take off the FRONT PANEL lifting up the bottom ...

Page 13: ...n frame 2 To detach TRAY DRAIN from the main frame pull the bottom of the TRAY DRAIN towards you 3 CONTROL IN 1 Unfasten the earth screw use Screw Driver 2 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 ...

Page 14: ... Electronics No Parts Procedure Remark 4 PBA 1 Unfasten the screw 2 Cut the cable tie 3 Loosen the terminal block wires Total 4EA N 1 2EA 2 1EA 3 1EA Caution The terminal is the locking type So when you separate terminals pull pressing the button Button ...

Page 15: ...g button 5 Loosen the Humidity sensor connector CN42 Option connector Caution When you separate the connector pull pressing the locking button 6 Loosen the MPI connector CN81 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 B...

Page 16: ...Caution When you separate the connector pull pressing the locking button 10 Loosen the Thermistor wire connector CN43 Caution When you take off the PBA don t touch the components Please hold the PBA both side 11 Loosen the Motor connector CN71 Caution When you separate the connector pull pressing the locking button 12 Take off the main PBA from the ASS Y Control in Caution When you take off the PB...

Page 17: ...amsung Electronics 3 7 No Parts Procedure Remark 5 EVAPORATOR 1 Unfasten the screw at the right side use Screw Driver 2 Unfasten the screw at the left side use Screw Driver 3 Detach the HOLDER PIPE 4 Take off the EVAPORATOR from the main frame ...

Page 18: ... EVAP on the left side of evaporator use Screw Driver 2 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 Operating Instructions and Installation ...

Page 19: ...k 1 Loosen 2 fixing screws and separate the Cover Terminal 2 Loosen 2 fixing screws and separate the 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 12 fixing screws and separate the Cabinet Side ...

Page 20: ...g screws of left and right side 2 Disassemble the inlet and outlet pipe by welding 3 Separate the Heat Exchanger Before you disassemble the pipes and Condenser be sure that there should be no refrigerant remained in the unit 4 Compressor 1 Open the Terminal Cover of Compressor and unscrew the Connection Terminal 2 Disassemble the inlet and outlet pipe of Compressor by welding 3 Loosen 3 bolts of t...

Page 21: ...Samsung Electronics 4 1 4 1 Setting Option Setup Method 4 Troubleshooting ...

Page 22: ...4 2 Samsung Electronics 4 1 Setting Option Setup Method continue ...

Page 23: ...8 2 4 1 7 C 2 1 8 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 2 8 0 1 0 0 3 0 0 0 0 0 REMOCON MODEL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 AQ12TSASER 0 0 7 8 2 4 1 7 C 2 1 8 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 2 8 1 1 0 0 3 0 0 0 0 0 AQ12TSEAXCH REMOCON MODEL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 S...

Page 24: ... USED HUMIDITY SENSOR ERROR IN TEST MODE MPI FEED BACK ERROR LED ON LED OFF LED BLINKING 4 2 Display Error and Check Method 4 2 1 Display Error mode E162 Error is displayed only in test mode So if you want to check please push the power button of indoor unit Samsung Electronics 4 4 REMOCON MODEL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 AS12TUBAXAX 0 0 0 0 0 0 1 7 C 2 2 8 SEG1...

Page 25: ...ue 20 C 12 09kΩ 30 C 8 31kΩ 35 C 6 94kΩ 40 C 5 83kΩ No Is the sensor resistance value 10KΩ 3 at the room temperature of 25 C Detach the assembly sensor from the ASS Y PCB CN43 connector and measure the sensor resistance of 1 and 2 with an ohmmeter tester Below 0 5V Over 4 9V MICOM Error or Connector CN43 check Connect the sensor to CN43 supply power and measure the voltage of 1 and 2 of the CN43 c...

Page 26: ...e SENSOR Resistance Value 20 C 12 09kΩ 30 C 8 31kΩ 35 C 6 94kΩ 40 C 5 83kΩ No Is the sensor resistance value 10KΩ 3 at the room temperature of 25 C Detach the assembly sensor from the ASS Y PCB CN43 connector and measure the sensor resistance of 3 and 4 with an ohmmeter tester Below 0 5V Over 4 9V MICOM Error or Connector CN43 check Connect the sensor to CN43 supply power and measure the voltage o...

Page 27: ...ure No power parts No Does the OPERATION lamp blink After unplugging out the power cord should be reconnected within 5 seconds Does the Solid State Relay SS71 work properly Test rod location Normal Voltage SS71 SS71 12V Is the supply voltage of the fan motor sufficient Test rod location Normal Voltage PCB CN72 Condition pin 3 and 5 Fan operate About AC 180V Micom should be replaced PCB is out of o...

Page 28: ...lamps are blinking or E162 is displayed exchange the main PBA 4 3 5 MPI Feedback Error When E186 is displayed 1 Checklist 1 Is the mpi connector properly connected with the connector CN81 2 Troubleshooting procedure Poor MPI Replace Yes Normal No Check as in the procedure No power parts No Does the Operation Lamp blink After unplugging out the power cord should be reconnected within 5 seconds Pres...

Page 29: ... the display board operate Press the Power Button on the remote control unit to operate the air conditioner Unplug the power cord and plug it after 30 seconds Check the indoor unit control board does not operate Check whether 2 wires of power cord are connected correctly to the terminal block and control board Check whether the fuse on the control board is normal FUSE F701 T3 15 A 250 V or T2 5 A ...

Page 30: ...ntrol unit pushed Voltage at pin 58 61 of micom IC04 change Squarewave Voltage at pin 2 5 of CN61 motor connector change Squarewave Up Down louver motor is faulty 4 3 8 When the remote control is not receiving 1 Check if the connector was normally assembled 2 Put the set in operation and check the voltage of No 7 and No 5 of the main PCB CN91 while operating the remote control When the voltage des...

Page 31: ...f the operating lamp twinkles at this time the above 1 3 have no relation Checking the power voltage 1 Is the BD71 input voltage AC200V AC240V Power Cord is fault Fuse open Wrong Power Cable Wiring AC Part is faulty 2 Is the voltage between both terminals of the C109 on the 2 side of the transformer DC12V 0 5V Switching Trans or Power Circuit is faulty 3 Is the voltage between both terminals of OU...

Page 32: ...or CN72 with a tester Normal At the normal temperature 10 C 30 C Abnormal 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 20 C 30 C Abnormal 0Ω Open or Short Compare terminal Resistance Remark STEP MOTOR Red Pink Yel Blu Org 120 7 GRILLE STEP MOTOR Red Pink Yel Blu Org 300 7 BLADE FAN MOTOR...

Page 33: ...Operating Instructions and Installation Samsung Electronics 5 Exploded Views and Parts List 5 1 Indoor Unit Exploded Views and Parts List AS12 AQ12 5 1 3 4 ...

Page 34: ... DB61 04578A CASE CONTROL IN ABS 5V 1 1 SA DB93 10859D ASSY PCB MAIN IN ASSY 1 SA DB93 10859A ASSY PCB MAIN IN ASSY 1 SA 4 3 DB90 06302A ASSY CASE CONTROL IN ASSY 1 1 SA DB96 11109G ASSY EVAP TOTAL ASSY 1 SA DB96 11109E ASSY EVAP TOTAL ASSY 1 SA 6 DB94 01922A ASSY TRAY DRAIN ASSY 1 1 SA 6 1 DB63 02118A TRAY DRAIN ABS 1 1 SA 6 2 DB61 03672A BLADE V PP 2 2 SA 6 3 DB61 03649A BLADE H ABS 1 1 SA 6 4 D...

Page 35: ...L IN ASSY 1 1 SA 4 1 DB61 04578A CASE CONTROL IN ABS 5V 1 1 SA 4 2 DB93 10859A ASSY PCB MAIN IN ASSY 1 1 SA 4 3 DB90 06302A ASSY CASE CONTROL IN ASSY 1 1 SA DB96 11109F ASSY EVAP TOTAL ASSY 1 SA DB96 11109E ASSY EVAP TOTAL ASSY 1 SA 6 DB94 02951A ASSY TRAY DRAIN ASSY 1 1 SA 6 1 DB63 02118A TRAY DRAIN ABS 1 1 SA 6 2 DB61 03672A BLADE V PP 2 2 SA 6 3 DB66 01561A BLADE H ABS 1 1 SA 6 4 DB62 05892A IN...

Page 36: ...SA 4 DB93 10853L ASSY CONTROL IN ASSY 1 SA 4 1 DB61 04578A CASE CONTROL IN ABS 5V 1 SA 4 2 DB93 10859A ASSY PCB MAIN IN ASSY 1 SA 4 3 DB90 06302A ASSY CASE CONTROL IN ASSY 1 SA 5 DB96 11109E ASSY EVAP TOTAL ASSY 1 SA 6 DB94 01922A ASSY TRAY DRAIN ASSY 1 SA 6 1 DB63 02118A TRAY DRAIN ABS 1 SA 6 2 DB61 03672A BLADE V PP 2 SA 6 3 DB61 03649A BLADE H ABS 1 SA 6 4 DB62 05892A INSULATION TRAY FR EPS 1 S...

Page 37: ...LLE HIPS 1 SA 4 DB93 10853D ASSY CONTROL IN ASSY 1 SA 4 1 DB61 04578A CASE CONTROL IN ABS 5V 1 SA 4 2 DB93 10859D ASSY PCB MAIN IN ASSY 1 SA 4 3 DB90 06302B ASSY CASE CONTROL IN ASSY 1 SA 5 DB96 11109G ASSY EVAP TOTAL ASSY 1 SA 6 DB94 02951A ASSY TRAY DRAIN ASSY 1 SA 6 1 DB63 02118A TRAY DRAIN ABS 1 SA 6 2 DB61 03672A BLADE V PP 2 SA 6 3 DB66 01561A BLADE H ABS 1 SA 6 4 DB62 05892A INSULATION TRAY...

Page 38: ...Samsung Electronics Exploded Views and Parts List 5 2 Outdoor Unit AS12 16 1 20 2 2 17 18 13 14 15 12 21 22 23 19 11 1 11 11 3 11 5 11 4 11 2 5 6 ...

Page 39: ...SA 11 DB93 11375D ASSY CONTROL OUT ASSY 1 SA 11 1 2501 001235 C OIL 25uF 450VAC 1 SA 11 2 DB93 11257A ASSY CONNECTOR WIRE ASSY 1 SA 11 3 DB65 00253M TERMINAL BLOCK 2P 1 SA 11 4 2301 001910 C FILM LEAD １５uF ４50VAC １ＳＡ 11 5 DB61 03752A CASE CONTROL OUT SGCC M T0 6 1 SA 12 UR4B124IXEEL SSCOMPRESSOR SET R22 CN R22 1 SA 13 6021 001142 NUT HEXGON FLANGE M5 ZPC YEL 1 SA 14 DB63 02310A COVER TERMINAL NO...

Page 40: ...Samsung Electronics Exploded Views and Parts List 5 2 Outdoor Unit 5 8 18 19 21 20 11 1 16 17 13 14 15 11 12 11 3 11 5 11 4 11 2 11 6 AQ12 ...

Page 41: ...93X ASSY CONTROL OUT ASSY 1 1 SA 11 1 2501 001238 C OIL 40uF 450VAC 1 1 SA 11 2 DB93 11257A ASSY LEAD WIRE ASSY 1 1 SA 11 3 DB65 00230D TERMINAL BLOCK 4P 1 1 SA 11 4 2301 001910 C FILM LEAD 1 5uF 450VAC 1 1 SA 11 5 DB61 03752A CASE CONTROL OUT SGCC M T0 6 1 1 SA 11 6 DB96 06803B ASSY SOLENOID ASSY 1 1 SA 12 UR4D124DXEELSS COMPRESSOR SET R22 CN R22 1 1 SA 13 6021 001142 NUT HEXGON FLANGE M5 ZPC YEL...

Page 42: ...Operating Instructions and Installation Samsung Electronics 8 Schematic Diagram 8 1 PCB Circuit Description 8 1 1 Indoor Unit 8 1 Sam sung Confidential ...

Page 43: ...8 1 2 Display Samsung Electronics Samsung Confidential 8 1 PCB Circuit Description 8 2 ...

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