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Samsung AS-1808BR Service Manual
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Samsung AS-1808BR Service Manual

Samsung AS-1808BR Service Manual

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SERVICE
AIR CONDITIONER
E DB68-30986A(2)
ROOM AIR CONDITIONER
AS-1808BR
AS-2408BR
Manual
CONTENTS

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Summary of Contents for Samsung AS-1808BR

  • Page 1: Table Of Contents

    ROOM AIR CONDITIONER AS-1808BR AS-2408BR SERVICE Manual AIR CONDITIONER CONTENTS 1. Installation 2. Disassembly and Reassembly 3. Troubleshooting 4. Exploded Views and Parts List 5. Refrigerating Cycle Block Diagrams 6. Wiring Diagrams 7. Schematic Diagrams E DB68-30986A(2)

  • Page 2: Installation

    E DB68-30986A(2) 1. Installation 1-1 Refrigerant Refill • Fill the airconditioner with coolant, or refill when necessary during use. 1 Purge air(for new installation only). 2 Turn the 3-way valve clockwise to close, connect the pressure gauge(low pressure side) to the service valve, and open the 3-way valve again.
  • Page 3 1-2 "Pump down" Procedure • 'Pump down' shall be carried out when an evaporator is replaced or when the unit is relocated in another area. 1 Remove the caps from the 2-way valve (B) and the 3-way valve(A). Suspension hook High pressure 2 Turn the 3-way valve clockwise to close...

  • Page 4: Disassembly And Reassembly

    2. Disassembly and Reassembly Stop operation of the airconditioner and remove the power plug from the wall outlet before repairing the unit 2-1 Indoor Unit Parts Procedure Remark Front Grille 1) Stop the air conditioner operation and block the main power. 2) Seperate the tape of front.
  • Page 5 Parts Procedure Remark Filter Frame 1) Loosen the left and right screw of the Holder Filter, and Separate the Holder Filter. Ass'y Tray Drain 1) Do 1 2 , above. Separate the holder at the rear side of Indoor unit. 2) Take the display PCB out.
  • Page 6 Parts Procedure Remark Heat Exchanger 1) Do " 1 2 3 4 ", above. 2) Loosen the left screws of the heat exchanger. Lifting the heat exchanger up a little to push the up side for separation from the indoor unit Fan Motor and 1) Do "...
  • Page 7 2-2 Outdoor Unit Parts Procedure Remark Cabinet 1) Turn off the unit and remove the power cable 2) Remove the top cover. 3) Remove the control box cover. 4) Unplug the ass'y cable. 5) Remove the cabi-side. 6) Remove the cabi-front. * When you assemble the parts, check if the each parts and electric connectors are fixed firmly.

  • Page 8: Troubleshooting

    3. Troubleshooting 3-1 Items to be checked first 1) The input voltage should be rating Voltage ±10% range. The air conditioner may not operate properly if the voltage is out of this range. 2) The indoor unit and the outdoor unit shall be linked by 4 cables. Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.
  • Page 9 3-2 Fault Diagnosis by Symptom 3-2-1 No Power(completely dead)-Initial diagnosis 1) Checklist : (1) Is input voltage normal? (2) Is AC power linked correctly? (3) Are connections between primary side, secondary side of the power transformer and PCB good. (4) Is output voltage of DC regulator IC KA7812(IC01) normal? (11.5VDC-12.5VDC) (5) Is output voltage of DC regulator IC KA7805(IC02) normal? (4.5VDC-5.5VDC) Troubleshooting procedure Remove power cord and plug in again in approx.
  • Page 10 3-2-2 When the Indoor Unit Fan Does Not Operate. (Initial Diagnosis) 1) Checklist : (1) Is input voltage normal? (2) Is the indoor unit fan properly connected(CN73)? (3) Is the starting codenser CR 71 properly soldered? (4) Is HALL IC in indoor fan motor properly connected(CN43)? (5) When in operation mode, does the indoor unit fan operate? 2) Troubleshooting procedure Remove power cord and plug in again in approx.
  • Page 11 3-2-3 When the Outdoor Unit Does Not Operate. (Initial Diagnosis) Checklist : (1) Is input voltage normal? (2) Is the set temperature of the remote control higher than room temperature in COOL mode? (3) Is the CONNECTOR-WIRE OUTDOOR linked correctly? (4) Is the indoor unit wire properly connected with the outdoor unit wire? Troubleshooting procedure Remove power cord and plug in again in approx.
  • Page 12 3-2-4 When the UP/DOWN Louver Motor Does Not Operate. (Initial Diagnosis) Checklist : (1) Is input voltage normal? (2) Is the UP/DOWN louver motor properly connected with the connector (CN61)? Troubleshooting procedure Remove power cord and plug in again in approx. 5 seconds. Check as in the procedure Is operating lamp blinking in 3 minutes and then lamp off? "No Power parts".
  • Page 13 3-2-5 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis) 1) Checklist : (1) Is operation selector switch of the indoor unit set at "REMOTE"? 2) Troubleshooting procedure Remove power cord and plug in again approx. 5 Seconds. Is operating lamp blinking in 3 minutes and then lamp off? Check as in the procedure "No Power parts".
  • Page 14 MEMO...

  • Page 15: Exploded Views And Parts List

    4. Exploded Views and Parts List 4-1 Indoor Unit...
  • Page 16 Parts List Q’TY CODE NO Description Specification Remark AS-1808BR AS-2408BR DB92-10285M ASS'Y GRILLE ASS'Y DB64-40155A WINDOW FILTER DB64-70069A PANEL CENTER DISPLAY DB64-70068A PANEL LED CENTER DB64-70067A PANEL FRONT HIPS DB92-10287A ASS'Y GRILLE SUPPORT DB92-10289A ASS'Y SUPPORT RH DB63-10404E COVER SCREW M...
  • Page 17 4-2 Outdoor Unit 24-1 24-2...
  • Page 18 Parts List Q’TY CODE NO Description Specification Remark AS-1808BRX AS-2408BRX DB90-10153J ASS'Y-WELD FRONT ASS'Y DB67-50063A FAN-PROPELLER AS+G/F20% DB31-10119E MOTOR-FAN OUT AMASS-035ZTEC DB31-10119A MOTOR-FAN OUT AMASS-035ZTEA DB61-20008C BASE-MOTOR SGCC-M DB64-60043G CABINET-SIDE SECC-P DB63-10415B COVER-CONTROL DB90-20160D ASS'Y-BASE OUT ASS'Y DB62-40039B VALVE-SERVICE 1/4” DB62-40074C VALVE-SERVICE 1/2”...
  • Page 19 4-3 Remote Control & PCB Box 4-3-1 Remote Control Parts List Q’TY CODE NO Description Specification Remark AS-1808BR AS-2408BR DB93-30051J Ass'y-remocon AS-1808BR DB61-10011A Case-remocon(LOW) DB73-20025A Rubber-button(B) DB09-10159A IC-MCU EOC621AF DB07-20050A E-30304 DB73-20009C Rubber-button(A) DB61-10020A Case remocon(UPP) DB64-20035A Door-remocon DB64-40007B Window-remocon...
  • Page 20 4-3-2 PCB Box 4-3-2(a) AS-2408BR Parts List CODE NO Description Specification Remark Q’TY DB39-20296A CONNECTOR WIRE OUT AWG #16 DB93-10540A ASS'Y MAIN PCB AS-2408BR DE26-20114A TRANS-POWER AC230V DC17V DB32-10008B THERMISTOR-ASS'Y 103AT DB93-10430A ASS'Y PCB SUB ASS'Y DB39-20244A C/W DISPLAY & MODULE AWG 26 DB59-10012A MODULE-REMOCON...
  • Page 21 4-3-2(b) AS-1808BR Parts List Q’TY CODE NO Description Specification Remark DB39-20334A CONNECTOR WIRE OUT AWG #16 DB93-10541A ASS'Y MAIN PCB AS-1808BR DE26-20114A TRANS-POWER AC230V DC17V DB32-10008B THERMISTOR-ASS'Y 103AT DB93-10430A ASS'Y PCB SUB ASS'Y DB39-20244A C/W DISPLAY & MODULE AWG 26...
  • Page 22 New Parts List / AS-1808BR Part Number Description; Specification 2501-001044 C-OIL;40/2.5UF,450V,-,50X145,2 48B190IV1EH ROTARY COMPRESSOR:208-230V,60H DB31-10078H MOTOR-FAN IN;AMPFS-040WTVB,FAN DB31-10116C MOTOR-STEPPING;MP35EA,STEP,DC1 DB31-10119E MOTOR-FAN OUT;AMASS-035ZTEC,-, DB32-10008B THERMISTOR-EVAP;103AT,AS-965,L DB39-20244A CONNECT WIRE-DISPLAY;AWG26/8,A DB39-20334A CONNECT WIRE OUT;AWG20/14,UL10 DB47-20001P OLP;26.8/74,165,MRA12016-12007 DB60-30018A NUT-FLANGE;PI0.8,-,M5,-,SM20C, DB60-30028A NUT-WASHER;HEX,2C,M8,ZPC,-,- DB60-70002A PIN-SCREEN;-,-,-,-,-,STS304,- DB61-20008C BASE-MOTOR;SGCC-M,T1.2,-,AS-12...
  • Page 23 New Parts List / AS-2408BR Part Number Description; Specification 2501-001044 C-OIL;40/2.5UF,450V,-,50X145,2 3601-000236 FUSE-FERRULE;250V,2A,NON TIME, 48B220IV1EH ROTARY COMP;1PH,60HZ,R22,208-2 DB31-10078H MOTOR-FAN IN;AMPFS-040WTVB,FAN DB31-10116C MOTOR-STEPPING;MP35EA,STEP,DC1 DB31-10119A MOTOR-FAN OUT;AMASS-0235ZEA 22 DB32-10008B THERMISTOR-EVAP;103AT,AS-965,L DB34-90057A SWITCH-MAGNET;240V,20A,-,-, DB39-20244A CONNECT WIRE-DISPLAY;AWG26/8,A DB39-20296A CONNECT WIRE OUT;AWG#18/6,AWM1 DB39-20315B CONNECT WIRE-COMP;ASH180UE,AWM DB47-20002Z OLP-POLYESTER;160/84,32.0,TI K DB60-30018A...

  • Page 24: Refrigerating Cycle Block Diagrams

    5.Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT Capillary tube 2-way valve Liquid side Heat Heat exchanger exchanger (Evaporator) (Condenser) Gas side 3-way valve Cooling Compressor Gas leak check point Refrigerating cycle temperature and pressure STD Pressure Piping Temp. (°F ) Use Temp.

  • Page 25: Wiring Diagrams

    6. Wiring Diagrams 6-1 Indoor Unit AS-1808BR AS-2408BR...
  • Page 26 6-2 Outdoor Unit 6-2-1 AS-1808BR CAPACITOR 40uF / 2.5uF x 450VAC 6-2-2 AS-2408BR NAME TB1,2 TERMINAL BLOCK FAN MOTOR MAGNETIC CONTACTOR CAPACTOR FUSE(2A, 250V) SPARK-KILLER MODEL MOTOR & COMP CAPACITOR AS-2408BR 2.5/40uF X 450VAC...

  • Page 27: Schematic Diagrams

    7. Schematic Diagrams 7-1 Indoor Unit...
  • Page 29 ELECTRONICS...

This manual is also suitable for:

As-2408br