Samsung SH07AS2 Service Manual
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Samsung SH07AS2 Service Manual

Samsung SH07AS2 Service Manual

Room air conditioner
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See also: Technical Manual
SERVICE
AIR CONDITIONER
ROOM AIR CONDITIONER
INDOOR UNIT
SH07AS2
SH07AS2A
SH09AS2
SH12AS4
Manual
CONTENTS
OUTDOOR UNIT
SH07AS2X
SH07AS2AX
SH09AS2X
SH12AS4X

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Summary of Contents for Samsung SH07AS2

  • Page 1: Table Of Contents

    ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT SH07AS2 SH07AS2X SH07AS2A SH07AS2AX SH09AS2 SH09AS2X SH12AS4 SH12AS4X Manual SERVICE AIR CONDITIONER CONTENTS 11. Product Specifications 12. Operating Instructions 13. Disassembly and Reassembly 14. Refrigerating Cycle Diagram 15. Set Up the Model Option 16.

  • Page 2: Product Specifications

    1. Product Specifications 1-1 Table Model SH07AS2 SH07AS2A Item Indoor unit Outdoor unit Indoor unit Outdoor unit Type Wall-mounted Wall-mounted Cooling 2.30 2.30 Heating 2.40 2.40 Dehumidifying Cooling Air Volume /min Perfor- Heating mance Noise Cooling 2.95 2.95 Energy Efficiency Ratio Heating 3.24...
  • Page 3 CAPILLARY TUBE Freezer Oil Capacity Refrigerant to Change(R410A) Protection Device(OLP) RBC12131-12500 RBC12128-12500 INDOOR UNIT : DB27˚C WB19˚C OUTDOOR UNIT : DB35˚C WB24˚C Cooling Test Condition Maximum Operation Condition INDOOR UNIT : DB32˚C WB23˚C OUTDOOR UNIT : DB43˚C WB26˚C Samsung Electronics...
  • Page 4 1-2 Pressure Graph SH07AS2 SH07AS2A SH09AS2 SH12AS4 Samsung Electronics...

  • Page 5: Operating Instructions

    30 minutes to 24 hours. To cancel, press the (Set/Cancel) button. Energy Saving button. If you wish to save energy when using your air conditioner, select the Energy saving mode with the button. Samsung Electronics...
  • Page 6 Room Temperature Operating Mode Temperature Setting heat exchanger temperature and accumulating time of Less than 21˚C Heat 22˚C approx. compressor's operation. Deice ends by sensing of the processing time by deice 21˚C or above Cool 24˚C approx. condition. Samsung Electronics...
  • Page 7 : Lamp off : Lamp flickering 12. BUZZER SOUND : Whenever the On/Off button is pressed or whenever change occurs to the condition which is set up or select, the compulsory operation mode, buzzer is sounded "beep". Samsung Electronics...

  • Page 8: Replace Pcb Model Option

    2-2 Replace PCB Model option 2-2-1 Replace PCB model option Remove power cord Replace the PCB module Check the connection and plug in Replace another PCB Does all display lamp blink? Refer to set up the Model option(14~16page) Samsung Electronics...

  • Page 9: Disassembly And Reassembly

    And press the right of the upper side of the Panel Grille with the fingers. And then disassemble the Panel Grille. 10) Pull the lower left and right of discharge softly for the outside cover to be pulled out. Samsung Electronics...
  • Page 10 1) Loosen 2 fixing earth screws of right side. Heat Exchanger 2) Detach the Connection Pipe. 3) Detach the Holder Pipe at the rear side. 4) Loosen 3 fixing screws of right and left side. 5) Detach the Heat Exchanger from the indoor unit. Samsung Electronics...
  • Page 11 1) Loosen 2 fixing screws and detach the Fan Motor Motor Holder. & 2) Loosen 1 screw of Fan Motor. Cross Fan (By use of M3 wrench) 3) Detach the Fan Motor from the Fan. 4) Detach the Fan from the left Holder Bearing. Samsung Electronics...
  • Page 12 2) Loosen 1 fixing screw and detach the Cover Control. 3) Detach the connection wire from the Terminal Block. 4) Loosen 13 fixing screws and detach the Cabinet-Front. 5) Loosen 1 fixing screw of Ass'y E-part. 6) Loosen 4 fixing screws and detach the Cabinet-Side. Samsung Electronics...
  • Page 13 3) Detach the Heat Exchanger. 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 the lower part. 4) Detach the Compressor. Samsung Electronics...

  • Page 14: Refrigerating Cycle Diagram

    4. Refrigerating Cycle Diagram Outdoor Unit Indoor Unit Capillary tube 2-Way valve Liquid side Heat Heat Exchanger Exchanger (Evaporator) (Evaporator) Gas side 3-Way valve 4-Way valve Cooling Heating Compressor Gas leak check point Samsung Electronics...

  • Page 15: Set Up The Model Option

    . . . repeatedly. Setting is not required if you must a value which has a default. Push the button to set the display panel to Every time you push the button, the display panel reads . . . repeatedly. Samsung Electronics...
  • Page 16 If all lamps of indoor unit are flickering, Plug out and plug in battery again and pressing ON/OFF key to retry. If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code is set up for it's model. Samsung Electronics...
  • Page 17 Set Up the Model Option OPTION ITEMS REMOCON SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 MODEL SH07AS2 SH07AS2A SH09AS2 SH12AS4 Samsung Electronics...

  • Page 18: Troubleshooting

    The compressor operates in a reverse cycle to remove exterior ice in a HEAT mode, and indoor fan and outdoor fan Indoor fan and outdoor fan stop operation intermittently in a HEAT mode. do not operate intermittently for within 20% of the total heater operation Samsung Electronics...
  • Page 19 Problem with the outdoor unit or PCB outdoor unit remote control. • In 3 minutes, check the voltage No power source Problem with the relay (RY71) or PCB between the indoor unit terminal displayed. block N(1) and 1. Samsung Electronics...

  • Page 20: Fault Diagnosis By Symptom

    Check whether the fuse on the Replace fuse control board is normal. FUSE: 3.15[A]/250[V] Check the output of SMPS on the control board. Input power: AC230±15%[V] PCB should be replaced IC02 Input: DC 12[V] IC02 output: DC 5[V] Check the setting temperature Samsung Electronics...

  • Page 21: Room Temperature Sensor Failure

    SENSOR Resistance Value : 40˚C-5.83kΩ Connect the sensor to CN43, supply power, and measure the voltage of #1 and #2 of the CN43 connector. Poor ASS'Y PCB Replace Below 0.5V? Poor ASS'Y PCB Replace Over 4.9V? MICOM Error or Connector(CN43) check Samsung Electronics...
  • Page 22 3. Assemble the room pipe sensor to PCB, plug in, and check the voltage of connector 3 and 4. If the resistance is below 0.5V or over 4.9V, replace the indoor Main PCB. (short or disconnected in the PCB board) Samsung Electronics...

  • Page 23: When The Indoor Unit Fan Does Not Operate. (Initial Diagnosis)

    Test rod location Normal voltage PCB CN72 Condition pin #3 and #5 Fan operating About AC 180V Replace Motor Motor Fan-Capacitor is out of order Fan-Capacitor Fan motor should be replaced. Fan motor is out of order. Samsung Electronics...

  • Page 24: When The Outdoor Unit Does Not Operate. (Initial Diagnosis)

    Power relay is Is rating voltage ±10% range applied relay between replaced. out of order Terminal block No. N(1) and No. 1 Outdoor unit is out of order. Is the room sensor normal resistor? 10°C 20°C 30°C 17.96kΩ 12.09kΩ 8.3kΩ Samsung Electronics...
  • Page 25 Abnormal IC05 Is the voltage between CN71 #1 and CN71 #5 rating voltage ±10% range Abnormal RY73 Abnormal 4-Way valve of Outdoor Unit. or connecting Cable PCB should be replaced. 4-Way valve should be replaced or connecting Cable Check. Samsung Electronics...
  • Page 26 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. 2~3 of CN91 maintains 5V after the remote control starts operation. Samsung Electronics...

  • Page 27: Exploded Views And Parts List

    7. Exploded Views and Parts List 7-1 Indoor Unit 14-1 14-6 14-2 14-4 14-3 14-5 You can search for the updated part code number through the ITSELF. URL : http://itself.sec.samsung.co.kr Samsung Electronics...
  • Page 28 Exploded Views and Parts List Parts List Q'TY Code No. Description Specification Remark SH07AS2 SH09AS2 SH12AS4 SH07AS2A DB92-00574A ASS'Y PANEL FRONT TOTAL ASS'Y DB92-00582A ASS'Y PANEL FRONT TOTAL ASS'Y DB92-00575A ASS'Y PANEL FRONT SVC ASS'Y DB92-00581A ASS'Y PANEL FRONT SVC...
  • Page 29 7-2 Outdoor Unit 15-1 15-2 15-4 15-7 15-3 15-6 15-5 Samsung Electronics...
  • Page 30 CAPACITOR-COMP 35uF/450VAC 2501-001236 CAPACITOR-COMP 30uF/450VAC 15-2 2301-001375 CAPACITOR-MOTOR 1.5uF/450VAC 15-3 DB65-40049E TERMINAL BLOCK 15-4 DB93-01547D ASS'Y LEAD WIRE SAMSUNG COMPor DB93-01547C ASS'Y LEAD WIRE MATSUSHITA COMPor 15-5 DB35-00028B RBC 12128-12500 DB35-00028C RBC 12131-12500 DB35-00026A MRA99901-9201 DB35-00015T RAC12126-9622 15-6 DB67-60020A OLP SPRING...
  • Page 31 7-3 Ass'y Control In (Indoor Unit) SH07AS2/SH07AS2A/SH09AS2 : DB93-02524A Samsung Electronics...
  • Page 32 SGCC-M T1.2 DB61-00171A HOLDER-WIRE CLAMP SCREW-MACHINE PH M3xL22 SCREW-MACHINE TH M4xL16 SCREW-MACHINE PH M4xL10 DB39-00949A ASS'Y C/W SUB ASS'Y DB39-00643M ASS'Y C/W STEP MOTOR ASS'Y DB32-00020A ASS'Y-THERMISTOR 4P(103AT) DB61-01629A HOLDER DISPLAY DB64-00986A WINDOW DISPLAY DB61-01630A ASS'Y HOLDER PCB HIPS Samsung Electronics...
  • Page 33 Exploded Views and Parts List SH12AS4 : DB93-02539A Samsung Electronics...
  • Page 34 SGCC-M T1.2 DB61-00171A HOLDER-WIRE CLAMP SCREW-MACHINE PH M3xL22 SCREW-MACHINE TH M4xL16 SCREW-MACHINE PH M4xL10 DB39-00949A ASS'Y C/W SUB ASS'Y DB39-00643F ASS'Y C/W STEP MOTOR ASS'Y DB32-00020A ASS'Y-THERMISTOR 4P(103AT) DB61-01629A HOLDER DISPLAY DB64-00986A WINDOW DISPLAY DB61-01630A ASS'Y HOLDER PCB HIPS Samsung Electronics...

  • Page 35: Block Diagram

    • STEPPING MOTOR DRIVE (H/M/L) PART • BUZZER DRIVE • FUNCTION DRIVE* BLADE-H STEPPING MOTOR MOVING SELECT -Blade -Auto grille* ON, OFF TIMER SELECT DC 5V TEMPERATURE SELECT VOLTAGE REGULATOR SLEEP SELECT DC 12V SMPS Power Block FUNCTION* SELECT AC INPUT Samsung Electronics...

  • Page 36: Pcb Diagram

    9. PCB Diagram 9-1 ASS'Y MAIN PCB(7K/9K/12K) : DB93-02447A Samsung Electronics...
  • Page 37 PCB Diagram BOTTOM Samsung Electronics...
  • Page 38 R-CHIP 1Kohm,5%,1/8W,TP,2012 R302,R401,R402,R404 R602,R604,R610 R103 R-CHIP 220ohm,5%,1/8W,TP,2012 R405,R406 R-CHIP 330ohm,5%,1/8W,TP,2012 R606,R909 R-CHIP 4.7Kohm,5%,1/8W,TP,2012 R101,R607,R608 R-CHIP 470ohm,5%,1/8W,TP,2012 R201,R202,R203,R204 R-CHIP 47Kohm,5%,1/4W,TP,3216 R205,R206,R207,R208 R407,R408 R-CHIP 6.8Kohm,1%,1/8W,TP,2012 R403 R-CHIP 6.8Kohm,5%,1/8W,TP,2012 C107 C-CERAMIC,DISC 2.2nF,20%,400V,Y5U,BK,12.5x6mm,10 C103,C105,C106,C201 C-CER,CHIP 100nF,+80-20%,50V,Y5V,TP,2012 C204,C301,C302,C402 C403,C501,C502,C503 C504,C901 C401 C-CER,CHIP 1nF,10%,50V,X7R,TP,2012 Samsung Electronics...
  • Page 39 F702 FUSE-CARTRIDGE 250V,3.15A,TIME-LAG,GLASS,5x20mm CN71 CONNECTOR-HEADER 1WALL,3P,1R,7.92mm,STRAIGHT,SN,BLU CN72 CONNECTOR-HEADER 1WALL,3P,1R,7.92mm,STRAIGHT,SN,WHT CN91 CONNECTOR-HEADER BOX,8P,1R,2mm,ANGLE,SN CN61 CONNECTOR-HEADER BOX,5P,1R,2mm,ANGLE,SN,WHT CN43 CONNECTOR-HEADER BOX,4P,1R,2mm,STRAIGHT,SN CN44 CONNECTOR-HEADER BOX,3P,1R,2.5mm,ANGLE,TIN,BLU IC04 IC MICOM S3C848AXZZ-QTRA,-,64P,+5V,10MHz,STM-0219-EA ST11 TRANS SWITCHING EI1916-048,SS-P/J,-,200V~240V,-,-,EI1916,50/60Hz,- 1.6mH(1P-3P),-,-,-,-,- FT71 COIL CHOKE USAV-07153,UU1116,15.0mH,-25˚C~+85˚C,-,1.3ohm,- 15mH,105,20x18mm,13,0.6,BK,-25˚C PCB BOARD FR-4 Samsung Electronics...
  • Page 40 9-2 ASS'Y SUB PCB(7K/9K/12K) : DB93-02525A Parts List Description Specification Q'TY Remark PCB-DISPLAY FR-1 TACT SWITCH YTP-1280A CONNECTOR SMSW200-08(WHT) LED-LAMP GRN(SM3517) LED-LAMP ORG(SO3517) RESISTOR 470ohm,1/2W MODULE REMOCON FRP4021H10 DIODE 1N4148 C-CERAMIC 1nF/50V C-CERAMIC 100nF/50V JUMPER 10mm Samsung Electronics...

  • Page 41: Wiring Diagram

    10. Wiring Diagram 10-1 Indoor Unit(7K/9K/12K) Code No : DB98-15135A This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 42 10-2 Outdoor Unit MOTOR CAPACITOR FAN MOTOR COMP CAPACITOR O.L.P OVER LOAD PROTECTOR Code No : DB98-15123A This Document can not be used without Samsung's authorization. Samsung Electronics...

  • Page 43: Schematic Diagram

    11. Schematic Diagram 11-1 Indoor Unit(7K/9K/12K) This Document can not be used without Samsung's authorization. Samsung Electronics...
  • Page 44 MEMO Samsung Electronics...
  • Page 45 MEMO Samsung Electronics...
  • Page 46 ELECTRONICS This Service Manual is a property of Samsung Electronics Co., Ltd. © Samsung Electronics Co., Ltd. Mar. 2004. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No. DB98-15920A(2)

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