Samsung UM27B1C3 Service Manual Download Page 1

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SERVICE

Manual

CONTENTS

AIR CONDITIONER

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

ROOM AIR CONDITIONER

INDOOR UNIT
AM27B1C07
AM27B1C13

OUTDOOR UNIT
UM27B1C3

E DB98-05644A(1)

DB98_05644A(1)_CO 5/30/02 6:52 PM Page 1

Summary of Contents for UM27B1C3

Page 1: ...ation 2 Disassembly and Reassembly 3 Troubleshooting 4 Exploded Views and Parts List 5 Refrigerating Cycle Block Diagrams 6 Wiring Diagrams 7 Schematic Diagrams ROOM AIR CONDITIONER INDOOR UNIT AM27B1C07 AM27B1C13 OUTDOOR UNIT UM27B1C3 E DB98 05644A 1 ...

Page 2: ...andard temperature It is recommend that refrigerant should be slowly put in If the refrigerant is put in too quickly compressor will be damaged 5 Stop operation of the air conditioner 6 Disconnect the charge hose of manifold gauge 7 Close the cap of each valve 2 Connect the charging hose of low pressure side of Manifold gauge to the packed valve having a charging port 1 2 Packed valve as shown at ...

Page 3: ...that the unit can be operated 7 Disconnect the charge set and mount the both 3 way valve s stem nuts and the service port cap Relocation of the air conditioner Refer to this procedure when the unit is relocated 1 Carry out the pump down procedure refer to the details of pump down 2 Remove the power cord 3 Disconnect the assembly cable from the indoor and outdoor units 4 Remove the flare nut connec...

Page 4: ...ct the second finger to the left and right handle and pull to open the inlet grille 4 Take the left and right filter out 5 Loosen one of the right fixing screw and sepa rate the terminal cover 6 Loosen three fixing screws of front grille 7 Pull the upper left and right of discharge softly for the outside cover to be pulled out 8 Pull softly the lower part of discharge and push it up Caution Assemb...

Page 5: ...on drain hose 2 Pull tray drain out from the back body 1 Do 1 and 2 3 above 2 Loosen two fixing earth screws of right side 3 Separate the connection pipe 4 Separate the holder pipe at the rearside 5 Loosen the three fixing screws of right and left side 6 Lifting the heat exchanger up a little to push the up side for separation from the indoor unit 1 Do 1 2 3 4 above 2 Loosen the fixing two screws ...

Page 6: ...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 1 Do Procedure above 2 Remove the nut flange Turn to the right to remove as it is a left turned screw 3 Disassemble the propeller fan ...

Page 7: ...6 MEMO ...

Page 8: ... and the air conditioner does not operate 6 The compressor stops intermittently in a COOL mode or DRY mode and fan speed of the indoor unit decreases It indicates power is on The LED stops blinking if the operation ON OFF button on the remote control unit is pushed In happens after a delay of 3 minutes when the compressor is reop erated The same phenomenon occurs when a power is on As a phenomenon...

Page 9: ...at 10 terminal of the Micom normal 0VDC Is voltage at 9 terminal of the Micom normal 5VDC Is rating voltage 10 range applied to the primary side of the BD71 Check linkage between power cord and terminal tap Check fuse Is 325VDC appear in the secondary side of BD71 Replace SMPS PARTS YES NO YES NO YES YES YES NO YES YES YES DC5V 10ms 10ms 250ns NO NO OK YES YES YES YES NO NO YES Normal Refer to rem...

Page 10: ...g out the power cord should be reconnected within five seconds Does the STD lamp Green blink Does the Solid State Relay SS71 work properly Is the supply voltage of the fan motor sufficient Test rod location PCB CN72 Condition Fan operate about AC 180V Normal voltage pin 3 and 5 YES YES YES NO NO NO Check as in the procedure NO power parts Refer to page 8 Microcomputer is out of order PCB is out of...

Page 11: ... lamp blink YES YES NO NO NO NO YES YES Outdoor unit is out of order Power relay is out of order Power relay should be replaced PCB should be checked Microcomputer is out of order PCB should be checked Room temperature sensor is out of order Check as in the procedure No Power parts Refer to page 8 Is the room sensor normal register 10 C 20 C 30 C 17 96kΩ 12 09kΩ 8 3kΩ Does the timer lamp blink dur...

Page 12: ...again in approx 5 seconds Is STD lamp blinking Does operation start when swing button of the remote control unit pushed Voltage at pin 58 61 of micom ICO4 change Squarewave Volatge at pin 13 16 of IC06 ULN2003A change Squarewave UP DOWN louver motor is faulty Driver IC06 ULN2003A is faulty Micom IC04 is faulty Normal Check as in the procedure No Power parts Refer to page 8 YES YES YES NO NO NO YES...

Page 13: ...01 C4375Y or Q602 C1623Y is faulty IR LED CL 1L5EU is faulty sound heard from the indoor unit when ON OFF button on the remote control unit pushed Voltage of battery less than 2 5V Remote Control Unit LCD display status of REMOCON normal Voltage at PIN 30 of Remocon Micom change Voltage at collecter of Q601 or Q602 change Voltage at pin 26 of micom IC04 change INDOOR UNIT Micom IC04 is faulty Tran...

Page 14: ...s on for three minutes and then goes off Check whether the compressor is activated in three minutes after the operation lamp comes on when you press the ON OFF button of the remote control Is the wave of the micom IC04 pin 62 high Is the wave of the IC07 pin 12 low Is the rating voltage between the skyblue wire and Brown wire of the Terminal Block Replace the compressor Go to the item of No power ...

Page 15: ...Method for Setting up the model option with remocon Note In case the wrong letter has been selected continue to press the button until the correct letter appears 1st If the first stage number appears on the display proceed to the second stage 2nd Every time the and button and each continue to appear 3rd Whenever pressing the 1 2 button the number increase from 0 9 0123456789 and A b C d E F each t...

Page 16: ...ON OFF button When pressing the operation ON OFF key with the direction of remote controller for unit the sound Ding or Diriring is heard and the first LED lamp on the left side is flickering at the same time then the input of option is completed If the diriring sound isn t heard try again pressing the ON OFF button Step 5 Unit operation test run First Remove the battery from the remote controller...

Page 17: ...16 Table of the option code MODEL AM27B1C13 AM27B1C07 OPTION CODE 030000 100373 030000 10020C ...

Page 18: ...17 MEMO ...

Page 19: ...18 4 Exploded Views and Parts List 4 1 Indoor Unit 17 16 14 22 9 7 21 3 4 5 6 19 20 8 12 25 13 4 23 13 3 13 2 13 13 1 11 10 2 1 15 18 1 18 5 18 4 18 18 6 18 6 1 18 2 18 3 24 ...

Page 20: ...0861A DB70 00114A DB63 00226A GRILLE AIR INLET GUARD AIR FILTER FILTER CLEANER ASS Y COVER TEMINAL ASS Y PANEL SPACER EVAP LOW SPACER EVAP UP COVER U BEND ASS Y FAN CROSS BOLT SPECIAL MOTOR FAN IN THERMISTOR WIRE ASS Y ASS Y CONTROL IN ASS Y PCB MAIN TERMINAL BLOCK ASS Y ASS Y PCB DISPLAY C CERAMIC MLC AXIAL MODULE REMOCON CONNECT WIRE PCB ASS Y BACK BODY RIGHT SIDE ASS Y HOLDER MOTOR HOLDER PIPE ...

Page 21: ...20 4 2 Outdoor Unit 12 18 8 2 5 4 3 1 10 14 15 16 16 1 9 9 1 9 2 17 17 1 17 4 13 13 1 13 6 11 19 19 1 19 7 7 6 ...

Page 22: ...TOR GUARD COND ASSY PARTITION ASSY CABI SIDE ASSY COVER COVER COVER CONTROL ASSY CABI UPPER ASSY COND UNIT SCREEN GUARD ROTARY COMPRESSOR NUT FLANGE NUT WASHER COVER TERMINAL GASKET GROMMET ISOLATOR OLP TUBE DISCHARGE A TUBE DISCHARGE B ASSY TUBE BY PASS ASSY SOLENOIDE COIL ASSY VALVE TUBE SUCTION A TUBE SUCTION B ASSY TUBE CAPI A ASSY TUBE CAPI B ASSY SOLENOIDE COIL ASSY SOLENOIDE COIL THERMISTOR...

Page 23: ...n HOLDER CONTROL ASSY MAIN PCB TERMINAL BLOCK ASSY ASSY DISPLAY PCB CONNECTOR WIRE PCB U D HOLDER CLAMP IN SEAL CONTROL SIDE SEAL H CONTROL FRONT SCREW MACHINE LABEL Specification DB61 00160B DB93 01018A DB65 00078A DB93 00268A DB39 00147A DB61 00219A DB72 10191T DB72 00127V Remark ...

Page 24: ... and pressure OUTDOOR UNIT INDOOR UNIT Operating Condition STD Pressure psi 3 WAY V V Piping Temp F Use Temp Condition F T1 T2 Indoor Outdoor DB 80 80 67 50 54 61 64 34 39 64 78 Cooling Standard Max over load Low temp 50 54 61 64 34 39 67 67 57 95 115 67 75 75 57 WB WB DB ...

Page 25: ...24 6 Wiring Diagrams 6 1 Indoor Unit ...

Page 26: ...25 6 2 Outdoor Unit ...

Page 27: ...27 ...

Page 28: ...29 ...

Page 29: ...ELECTRONICS Printed in Korea ...

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Samsung UM27B1C3, Service Manual

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