Samsung AD26B1C13 Service Manual
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Samsung AD26B1C13 Service Manual

Samsung AD26B1C13 Service Manual

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See also: Installation Instructions & Owner's Manual
SERVICE
AIR CONDITIONER
E DB98-05645A(1)

ROOM AIR CONDITIONER

INDOOR UNIT
AD26B1C13
AD18B1C09
Manual
OUTDOOR UNIT
UD26B1C2
UD18B1C2
CONTENTS

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Summary of Contents for Samsung AD26B1C13

  • Page 1: Table Of Contents

    ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AD26B1C13 UD26B1C2 AD18B1C09 UD18B1C2 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...

  • Page 2: Installation

    Pipe Size length height LIQUID GAS A-UNIT 1/4” 1/2” 15m(49ft 3in) 7m(23ft) AD26B1C13 2. Connect the charging hose of low pressure side of B-UNIT 1/4” 1/2” 15m(49ft 3in) 7m(23ft) Manifold gauge to the packed valve having a charging A-UNIT 1/4”...
  • Page 3 1-2 “Pump down” Procedure 1. Confirm that both the 2-way and 3-way valves are set to the open position. (1) Remove the valve stem caps. (2) Be sure to use a hexagonal wrench to operate the Gas side valve stems. 2.

  • Page 4: Disassembly And Reassembly

    2. Disassembly and Reassembly Stop operation of the air conditioner and remove the power cable 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) Separate tape of front panel upper. 3) Contract the second finger to the left, and right handle and pull to open the inlet grille.
  • Page 5 Parts Procedure Remark Electrical Parts 1) Do “1”above. (Main PCB) 2) Take all the connector of PCB upper side out. (Inclusion Power cord) 3) Separate the outdoor unit connection wire from the terminal block. 4) If pulling the Main PCB up. it will be taken out. Ass’y Tray Drain.
  • Page 6 2-2 Outdoor Unit Parts Procedure Remark <UD26B1C2> 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 7: Troubleshooting

    3. Troubleshooting 3-1 Items to be checked first 1) The input voltage should be rating voltage ±10% range. The airconditioner may not operate properly if the voltage is out of this range. 2) Is the link cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 5 cables.
  • Page 8 4) Indoor unit observes operation condition of the air conditioner, and displays self diagnosis details on the display panel. Display Self Diagnosis Standard Timer Nature Power (GREEN) Restore from power failure (input initial power) Indoor unit Room sensor Error (open or short) (GREEN) Indoor unit heat exchanger temperature sensor Error (open or short) Indoor fan malfunctioning (for speed is below 450rpm)
  • Page 9 3-2 Checking and Testing Operations (Outdoor Unit) To complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly. 1. Review all the following elements in the installation: • Installation site strength • Piping connection tightness to detect any gas leakages •...
  • Page 10 If the lamp is not flickering, check as follows: A. Check the display part of indoor unit of each unit (A,B) after outdoor unit PCB switch S/W-A is on. Check the status of each unit indoor room select switch. (Adjust the select switch suitable to the unit A, B.) - A unit : STANDARD LED on, TIMER LED flickering - B unit : STANDARD LED on, TIMER and NATURE LED flickering - C unit : STANDARD LED on, TIMER and NATURE, POWER LED flickering (In case of triple...
  • Page 11 DISPLAY EXPLANATION REMARK Be sure to check after applying the power to the outdoor unit. Outdoor sensor error (Short/Open) Outdoor A cond pipe sensor error (Short/Open) Outdoor B cond pipe sensor error (Short/Open) Outdoor C cond pipe sensor error (Short/Open) Display when the test operation finishes.

  • Page 12: Fault Diagnosis By Symptom

    3-3 Fault Diagnosis by Symptom 3-3-1 No Power (completely dead)-Initial diagnosis Checklist : (1) Is input voltage normal? (2) Is AC power linked correctly? (3) 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 13 3-3-2 When the power voltage is not available Inspection items (1) Is the power voltage is normal? (The rating voltage ±10% range) (2) Is the power cord is correctly connected and is the contact good? (3) Does the sound “ting” come out with the operation lamp (green) flickering when the power is applied? If it is not flickering, do inspect and repair in accordance with the following inspection sequence.
  • Page 14 3-3-3 No Power (Outdoor unit) 1) Inspection items (1) Á Is the power source normal (The rating Voltage ±10% range)? (2) Is the outdoor power connected normally? ((1) of terminal : L, (2) of terminal : N, (3) of terminal : communication) ? (3) Check whether the display of outdoor PCB(SEG1) is shown in the order of A- B - C when the power is applied.
  • Page 15 3-3-4 When the fan of indoor unit does not operate 1) Inspection items (1) Is the power voltage normal? (2) Is the connector of indoor fan with the good contact? (CN73) (3) Is the soldering status of running condenser (CR71) with the good contact? (4) Is connector of the Hall IC with the good contact (CN 43) ? (5) Is the indoor fan rotating when it is under operation mode? (6) Is the FAN LED (green) flickering when the indoor fan stalled (for more than 15 seconds) and...
  • Page 16 3-3-5 When the outdoor unit fan does not operate 1) Inspection items (1) The outdoor unit fan motor operates only when the operating conditions are satisfied and is selected by the RY74(LOW) and PY75(HI) to rotate. (2) Is the power voltage normal? (3) Is the contact of outdoor unit fan motor (CN 73) good? (4) Is the winding resistance of outdoor unit fan motor 58Ω...
  • Page 17 3-3-6 When the UP/DOWN Louver Moter Does Not Operate. (Initial Diagnosis) 1) Checklist : (1) Is input voltage normal? (2) Is the UP/DOWN louver motor properly connected with the connector (CN61)? 2) Troubleshooting procedure Remove power cord and plug in again in approx. 5 seconds. Is operating lamp blinking? Check as in the procedure "No Power parts".

  • Page 18: If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)

    3-3-7 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis) Troubleshooting procedure Remove power cord and plug in again approx. 5 Seconds Is operation lamp blinking? Check as in the procedure “NO Power parts”. Refer to page 11. “ “...
  • Page 19 3-3-8 When the 4 way valve (A,B) is not operating 1) Inspection items (1) Are the 4 way valve A and B under the operating conditions? (When the COMP A (4 way valve A ) and COMP B (4 way valve B) are on during the heating operating) (2) Is the power voltage normal? (3) Is the connecting of 4 way valve A (CN 75) and B (CN 76) good?

  • Page 20: Indoor Unit Operation

    3-3-9 When the compressor does not operate 1) Inspection items (1) Is the COMP A under the operating conditions? (cooling operating of A, B(C) room) (2) Is the power voltage normal? (the rating voltage ±10% range) (3) Are the connector connection of COMP A(RY 72, 73) and B(RY 71) good? (4) The COMP A(B) is operated on and off in accordance with the operating conditions of indoor unit of A (B.
  • Page 21 3-4 Set up the Model option The Method for Setting up the model option with remocon • It is necessary to set up option code after replacing the main-PCB as a service parts. Make sure that you can set up the option of code the remote controller after you replace the main PBA otherwise, the unit won’t be working properly and all LED lamps on display will be flickering.
  • Page 22 ! If the first number is , it is correct otherwise press until appear. @ When pressing the button appear on the display, select one of them. # When pressing the button appear on the display, select one of them. $ When pressing the button appear on the display,...
  • Page 23 <Table of the option code> MODEL OPTION CODE AD26B1C13 015773-100373 AD18B1C09 015223-10020C...
  • Page 24 MEMO...

  • Page 25: Exploded Views And Parts List

    4. Exploded Views and Parts List 4-1 Indoor Unit 18-6 18-6-1 18-1 18-4 18-5 18-3 18-2 13-4 13-2 13-3 13-1...
  • Page 26 Parts List Q’TY REMARK CODE NO Description AD18B1C09 AD26B1C13 DB64-00085A GRILLE AIR INLET DB63-00064B GUARD-AIR FILTER DB95-00287K FILTER CLEANER ASS´Y DB63-00067A COVER TEMINAL DB92-00031L ASS´Y PANEL DB67-00051A SPACER EVAP LOW DB67-00032A SPACER EVAP UP DB63-00083A COVER U BEND DB94-00020A ASS´Y FAN CROSS...
  • Page 27 4-2 Outdoor Unit 4-2-1 UD26B1C2 16(16-1~16-7) 13(13-1~13-6) 9(9-1~9-2) 14(14-1~14-4)
  • Page 28 Parts List Q’TY REMARK CODE NO Description Specification UD26B1C2 DB90-00075D ASSY CABI FRONT ASS’Y DB90-20207A ASSY BASE OUT ASS’Y DB67-50067A FAN PROPELLER AS+G/F20%, D495 DB31-00095A MOTOR FAN OSM-738SRC DB61-20093A BASE MOTOR SGCC-M, T1.2 DB63-30027C GUARD COND SC-90073T DB94-50041D ASSY PARTITION ASS’Y DB90-10574B ASSY CABI SIDE...
  • Page 29 4-2-2 UD18B1C2 16(16-1~16-7) 13(13-1~13-6) 14(14-1~14-4)
  • Page 30 Parts List Q’TY REMARK CODE NO Description Specification UD18B1C2 DB90-00734A ASSY CABI FRONT ASS’Y DB63-00320A GUARD FAN SC-90073T DB90-00733A ASSY BASE OUT ASS’Y DB67-50063A FAN PROPELLER AS+G/F20%, D405 DB31-00001A MOTOR FAN IC-9630SLJ5A DB61-20008C BASE MOTOR SGCC-M,T1.2 DB63-00343A GUARD COND SC-90073T DB94-00180A ASSY PARTITION ASS’Y...
  • Page 31 4-3 ASS’Y CONTROL IN (DB93-01223A) Parts List Description Specification Remark HOLDER CONTROL DB61-00160B ASS’Y MAIN PCB DB93-00319B TERMINAL BLOCK ASSY DB65-00046A ASSY DISPLAY PCB DB93-00268A CONNECTOR WIRE PCB U/D DB39-00147A HOLDER CLAMP IN DB61-00219A SEAL CONTROL SIDE DB72-10191T SEAL H/CONTROL FRONT DB72-00127V SCREW MACHINE LABEL...

  • Page 32: Refrigerating Cycle Block Diagrams

    5. Refrigerating Cycle Block Diagram INDOOR UNIT OUTDOOR UNIT 2Way valve Check valve Liquid side Capillary tube Capillary tube Heat exchanger (Condenser) Gas side Heat exchanger Compressor-B (Evaporator) Compressor-A 3Way valve 4Way valve Refrigerating cycle temperature and pressure STD Pressure Piping Temp.(°F) Temp.

  • Page 33: Wiring Diagrams

    6. Wiring Diagrams 6-1 Indoor Unit...
  • Page 34 6-2 Outdoor Unit...

  • Page 35: Schematic Diagrams

    7. Schematic Diagrams 7-1 Indoor Unit AS07A5(6)MA / AS09A5(6)MA...
  • Page 36 7-2 Outdoor Unit AS07A5(6)MA / AS09A5(6)MA...
  • Page 37 ELECTRONICS Printed in Korea.

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