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Samsung ASH-1808DR, Service Manual

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SERVICE

Manual

CONTENTS

AIR CONDITIONER

1 . P re c a u t i o n s

2 . P roduct Specifications

3.  Operating Instructions and 

I n s t a l l a t i o n

4 . Disassembly and Reassembly

5.  Tro u b l e s h o o t i n g

6 . Exploded Views and Parts List

7 . Block Diagrams

8 . PCB Diagrams

9 . Wiring Diagrams

1 0 . Schematic Diagrams

ROOM AIR CONDITIONER

ASH180UE/ASH181UE
ASH-2417ER
ASH-1808DR

Summary of Contents for ASH-1808DR

Page 1: ...pecifications 3 Operating Instructions and Installation 4 Disassembly and Reassembly 5 Troubleshooting 6 Exploded Views and Parts List 7 Block Diagrams 8 PCB Diagrams 9 Wiring Diagrams 10 Schematic Diagrams ROOM AIR CONDITIONER ASH180UE ASH181UE ASH 2417ER ASH 1808DR ...

Page 2: ... Samsung Electronics Co Ltd APR 1998 Printed in Korea Code No DB81 10154A ...

Page 3: ...roblems such as intermit tent contact etc 5 Lead wire or power cable damaged Check if lead wire or power cord is damaged prior to repair and replace if damaged 6 Avoid tapping a power cord Tapping a power cable or using an extension cord from a power outlet is dangerous and should be avoided It may result is malfunctioning or fire 7 Checking insulation Be sure to check insulation resistance when a...

Page 4: ...1 2 Samsung Electronics MEMO ...

Page 5: ...x320 1 050x298x180 787x620x320 dimension x Depth inch 41 34x11 73x7 09 30 98x24 4x12 6 41 34x11 73x7 09 30 98x24 4x12 6 41 34x11 73x7 09 30 98x24 4x12 6 Weight kg 13 46 13 59 13 59 Coolant pipe Liquid OD mm ø6 35x5 ø6 35x5 ø6 35x5 Coolant x L m ø12 7x5 ø15 88x5 ø12 7x5 Drain hose ID mm xL mm ø17x2000 ø17x2000 ø17x2000 Compressor Type Rotary Reciprocating Reciprocating Motor Type P S C P S C Rated ...

Page 6: ...cs 2 2 Dimensions 2 2 1 Indoor Unit 2 2 2 Outdoor Unit Air in Front view Remote control Rear view Front view Rear view 787 340 582 1050 180 250 260 outer edge of indoor unit 200 145 Air out Installation plate 63 21 unit mm ...

Page 7: ...te controller use this button to set current time Adjust the current time using TIME button Data can be transmitted after setting up the time Use this button to reserve or cancel the timer on and timer off Set up the time that operation start Set up the time that operation stop If the TIME button is pressed once the time increase by one minute during the time set mode and ten minutes during the ti...

Page 8: ...ure release Prevention against freeze 5 TURBO MODE This mode is available only in AUTO COOL HEAT mode When this button is pressed at first the air conditioner is operated powerful state for 30 minutes regardless of the set tempera ture room temperature When this button is pressed again or when the operating time is 30 minutes turbo operation mode is canceled and returned to the previous mode 6 MIL...

Page 9: ... Q timer button is pressed at operat ing state LCD displays the polling state sequentially The LCD also displays the time remaining 13 TIMER The air conditioner is turned ON OFF at a specified time using TIMER ON OFF Timer LED lights on 14 SELF TEST Interruption of electric power and Power on Abnormal condition of the room sensor Indoor unit fan motor lock Abnormal condition of the indoor unit s h...

Page 10: ...ake sure that you install the outdoor unit in area providing good ventilation and which is not dusty It must not be blocked by any obstacle affecting the airflow near the air inlet and the air outlet 4 Make sure that you install the outdoor unit in area free from animals or plants 5 Make sure that you install the outdoor unit in area not blocking the traffic 6 Make sure that you install the outdoo...

Page 11: ...tighten firmly with a spanner For more information refer to the Installation Manual 582 ø12 Remote control Remote control holder 10 4 5 6 Connection pipe lengh 5mmax 5 10m Air purge method Refertothe detailed air purge procedure Coolant adjustment unnecessary Add A gof coolant R 22 for every1m Referto thedetailed coolant charge procedure Airpurge method Purgeair using avacuum pumpor an additional ...

Page 12: ...secure the installation plate If an anchor bolt is too long adjust the projecting length to 20mm or less 1 When mounting installation plate at the win dow frame Use the paper patten for installation of the wood pillar 2 As the left Fig Fix the wood pillar at the wood frame and install installation plate with screw tap 3 Fix the wood pillar with enough strength to bear the weight of the indoor unit...

Page 13: ...dwater maybe generated Installdrainlineasfollowing procedure 1 Insertthedrainplug intobase hole 2 Andthenconnectdrainhose todrain plug 1 Cut out the knock out piece from the leftside of the rear body with a knife etc Smooth the cut edges 1 Cut out the knock out piece from the underside of the rear body with a knife etc Smooth the cut edges 2 Cut out the Holder pipe on its slit part Set the drain h...

Page 14: ...ructures or under a place with heavy traffic its wire must be facilites such as gas pipes water pipes connected firmly with the utmost care telephone lines underground cables etc b A place 2m or less from the lightning arrester grounding electrode and its cable 2 Drive the grounding a Dig a hole to the size illustrated electrode into position and drive in the grounding electrode b Cover the top of...

Page 15: ...1 Cut the pipe using a pipe cutter 3 Insert a flare nut into the pipe and modifty flare Unproper flaring 2 Remove burrs at the tip of the pipe cut Caution Burrs not removed may result in leakage of gas Outer diameter A mm ø6 35mm 1 3 ø12 7mm 2 0 ø15 8mm 2 2 Oblique Raughness Burr Point down D A Inclined Surface damaged Cracked Uneven thickness Pipe Reamer ...

Page 16: ... 2 way valve again 7 Close the cap of each valve 5 Open the service valve cap of the 3 way valve and press the needle valve to discharge gas for 3 seconds and leave it for about 1 minute Repeat the above procedure for 3 times to purge air 8 Check each valve for leakage 6 Open the 2 way valve and 3 way valve completely 2 Turn the 2 way valve cock approx 45 counterclockwise to open it Close it about...

Page 17: ...dicated by the pressure gauge low pressure side Standard pressure is should be 4 0 5 0kg cm2 in a reqular high operation mode 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 6 Open the coolant tank and fill with coolant until the rated pressure is reached It is recommended not to pour the coolant in too quic...

Page 18: ...ted 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 connecting the indoor unit and the pipe At this time cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign materal entering 5 Disconnect the pipe connected to the outdoor ...

Page 19: ... front Panel upper 3 Contract 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 seperate the terminal cover 6 Open the cover screw and loosen three fix ing 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 l...

Page 20: ...nd right screw of the Holder Filter and Separate the Holder Filter 1 Do Á Ë above Separate the holder at the rear side of Indoor unit 2 Take the display PCB out Center of indoor unit 3 Loosen three fixing screws of left and right 4 Pull tray drain out from the back body 1 Do Á Ë È above 2 Take all the connector of PCB 2 piece upper side out ...

Page 21: ...he left screws of the heat exchanger 1 Do 1 2 3 4 5 above 2 Loosen the fixing two screws and separate the motor holder 3 Loosen the fixing screw of motor fan By use of M3 wrench Separate the motor from the fan Separate the fan motor the left holder bearing Lifting the heat exchanger up a little to push the up side for separation from the indoor unit ...

Page 22: ...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 1 Do Procedure 1 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 23: ...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 reoperated The same phenomenon occurs when a power is on As a phenomenon that the compressor is reoperated after a delay of 3 minutes the indoor fan is adjusted automatically with refe...

Page 24: ...ocedure Remove power cord and plug in again in approx 5 seconds Is operating lamp lights on for three minutes and then goes off Normal Replace the fuse 250V 3 15A Replace the trans Replace the IC01 Replace the IC02 Replace the assembly display PCB Harness check and replace Check whether the fuse is normal F701 Check whether the output voltage of the trans is normal AC 15V 3V Check whether the DC 1...

Page 25: ...prox 5 seconds Is operating lamp lights on for three minutes and then goes off Go to the item of No power parts Refer to page 5 2 No problem Normal Is pin 63 of the micom IC04 a square wave Is pin 13 of the IC06 a square wave Is pin 24 of the micom IC04 a square wave Check whether the indoor fan turns with the operation lamp being turned on when the ON OFF button of the remote control is pressed I...

Page 26: ...ooting Y N N Y N N N N Y Y Y Y Remove power cord and plug in again in approx 5 seconds Is operating lamp lights on for three minutes and then goes off Go to the item of No power parts Refer to page 5 2 No problem Normal Replace the micom IC04 Replace the IC06 Check the outdoor power Replace the magnetic contactor Check whether the compressor is activated in three minutes after the operation lamp c...

Page 27: ...eck it in the heat mode Remove power cord and plug in again in approx 5 seconds Is operation lamp lights on for three minutes and then goes off Check whether the 4 way valve is activated with the opera tion lamp being truned on when you press the ON OFF but Is the wave form of the micom IC04 pin 60 high Is the wave form of the IC06 pin 16 low Is the AC240V voltage at both ends of the 4 way valve R...

Page 28: ...oting Y Y N N Y N N Y Remove power cord and plug in again in approx 5 seconds Is operating lamp blinking in 3 minutes and then lamp off Check as in the procedure No Power parts Refer to page 5 2 Normal Micom IC04 is faulty Driver IC05 is faulty Does operation start when swing button of the remote control unit pushed Voltage at pin 33 36 of micom IC04 change Squarewave Voltage at pin 10 13 of IC05 ...

Page 29: ...No Power parts Refer to page 5 2 Normal Replace battery LCD is faulty Replace button Q601 KSH29 C4375 or Q602 2SC1623 is faulty LE61 LE62 CL 1L5E is faulty Receiver module GP1U271R is faulty Beep 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 collecter of Q60...

Page 30: ...iode on its sub strate So if a circuit board is roughly handled such lead wires and parts will be easily broken or damaged by bending or shock 5 When soldering the lead wires of any new part be sure to polish them using an emery paper or the like before solding them Since the lead wires of any new part are covered with an oxide film solder cannot adhere to the lead wires if not polished 6 When sol...

Page 31: ...e check 1 AC voltage at both end of transformer Primary 198 264V 2 AC voltage at both end of transformer secondary 15 25V 3 DC voltage at OUT and GND of IC01 KA7812 12VDC 4 DC voltage at OUT and GND of IC02 5VDC 5 DC voltage at Q201 Base and GND change squarewave 1 Compressor does not operate 1 Compressor does not operate 1 Voltage at 3 5 both ends of CN73 above 190V 2 Indoor unit fan motor does n...

Page 32: ... Normal At ambient temperature 10 C 30 C Abnormal Measure the voltage between ground and signal wire of the fan motor Normal Abnormal Abnormal if voltage does not change from 0V to 5V Normal At ambient temperature 10 C 30 C Abnormal O Ω open or short Measure resistance between red wire and each terminal Normal Approx 380Ω at ambient temperature 20 C 30 C Abnormal O Ω open or short between Resistan...

Page 33: ...Samsung Electronics 5 11 MEMO ...

Page 34: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor Unit ...

Page 35: ...MAIN ASH180UE 1 1 DB93 10442A ASS Y PCB MAIN ASH 1808DR 1 DB93 10435A ASS Y PCB MAIN ASH 2417ER 1 9 DB61 10122A CASE CONTROL PP 1 1 1 1 10 DB61 40254A ASS Y HOLDER MOTOR ASS Y 1 1 1 1 10 1 DB61 40052A HOLDER MOTOR PP 1 1 1 1 10 2 DB65 10102A CLIP EARTH WIRE SECC 1 1 1 1 10 3 DB65 40058A TERMINAL BLOCK ASS Y 1 1 1 1 11 DB70 10589A PLATE HANGER SGCC M 1 1 1 1 12 DB75 40069A ASS Y EVAP PLATE1 2 1 2 1...

Page 36: ...Samsung Electronics 6 3 6 2 Outdoor Unit 15 19 8 18 7 6 11 17 1 4 3 2 5 10 20 1 20 20 5 20 6 20 4 20 3 20 2 9 12 13 1 16 1 16 16 4 16 5 16 6 16 3 16 2 14 1 14 14 3 13 13 2 14 2 ...

Page 37: ...6A ASS Y CHECK V V ASS Y 1 14 1 DB62 31749A TUBE CAPI C ø2 0 X 900 1 DB62 31424A TUBE CAPI C ø1 5 X 850 1 DB62 31425A TUBE CAPI C ø1 5 X 900 1 14 2 DB62 40039C PACKED VALUE 1 4 1 4 inch 1 1 1 14 3 DB62 31426A TUBE CAPI H ø2 0 X 500 1 1 DB62 31748A TUBE CAPI H ø2 0 X 1200 1 15 DB63 30130C SCREEN PHF 100 1 1 1 16 DB93 40680A ASS Y CONTROL OUT ASS Y 1 SNA DB93 40566A ASS Y CONTROL OUT ASS Y 1 SNA DB9...

Page 38: ...B DB74 10008A DB64 40068C DB61 40009A DB63 10081A Description Ass y remocon Case remocon LOW Rubber button B IC MCU LCD Rubber button A Case remocon UPP Door remocon Window remocon Filter remocon Inlay remocon Holder remocon Cover battery Specification ASH 1205ER ABS NBR SMC621A AT 025ZAR NBR ABS ABS PC PC ABS ABS ABS Q TY 18000BTU 24000BTU 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Remar...

Page 39: ...93A DB59 10012A DB39 20188B DB61 10122A Description ASS Y TERMINAL BLOCK ASS Y MAIN PCB ASS Y MAIN PCB ASS Y MAIN PCB TRANS POWER THERMISTOR ASS Y ASS Y PCB SUB C W DISPLAY MODULE MODULE REMOCON CONNECTOR WIRE POWER CASE CONTROL Specification ASS Y 5P ASH 1808DR ASH180UE ASH 2417ER AC230V DC17V 103AT ASH 2417ER AWG26 GP1U271R AWM 1007 PP Q TY 18000BTU 24000BTU 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

Page 40: ...6 7 Samsung Electronics MEMO ...

Page 41: ...E H MOVING SELECT ON OFF TIMER SELECT TEMPERATURE SELECT SLEEP SELECT TIME SETTING COMP CONTROL SIGNAL OUTDOOR FAN CONTROL SIGNAL 4 WAY VALVE CONTROL SIGNAL STEPPING MOTOR CONTROL SIGNAL BUZZERCONTROL SIGNAL TRIGER SIGNAL SSR COMP DRIVE OUTDOOR FAN DRIVE 4 WAY VALVE DRIVE STEPPING MOTOR DRIVE BUZZER DRIVE RESET CIRCUIT OSCILLATION CIRCUIT AUTO OFF SWITCH INDICATOR PANNEL OPER DEICE LED TIMER LED F...

Page 42: ...eck point Heat exchanger Condenser Heating Capillary tube Check valve Compressor 4 way valve T T STD Pressure Piping Temp UseTemp Condition C Operating Condition kg cm2G T1 T2 Indoor Outdoor 3 WAY V V DB WB DB WB Standard 4 0 5 0 10 12 10 12 27 19 19 5 35 24 Cooling Max over load 16 18 14 18 29 19 54 24 Low temp 1 4 1 4 21 16 21 16 Standard 19 23 32 36 60 70 20 21 7 6 Heating Max over load 36 40 6...

Page 43: ...Samsung Electronics 7 3 MEMO ...

Page 44: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 Ass y Main PCB Code No DB93 10521A ASH180UE 181UE Code No DB93 10442A ASH 1808DR Code No DB93 10435A ASH 2417ER ...

Page 45: ... R CARBON R CARBON R CARBON R CARBON S R CARBON S R METAL PIN EYELET PCB MAIN TR DIGITAL TR SMALL SIGNAL TR SMALL SIGNAL IC C ELEC CONNECTOR HEADER CONNECTOR HEADER CONNECTOR HEADER CONNECTOR HEADER CONNECTOR HEADER CONNECTOR HEADER CONNECTOR HEADER CONNECT0R HEADER VARISTOR C AL C AL C AL RESONATOR CERAMIC SWITCH TACT IC DRIVE INVERT C FILM MPPF THYRISTOR TRANS L V FILTER NOISE FUSE HOLDER FUSE R...

Page 46: ...780 DB41 10192A DB41 10195A Description LED LAMP LED LAMP LED LAMP LED LAMP MODULE REMOCON CONNECTOR WAFER CONNECTOR WAFER C W DISPLAY C CERAMIC C CERAMIC PCB MODULE PCB DISPLAY Specification SAM5370 LTL4254 YEL LTL4234 GRN LTL 4294 ORG GP1U271R SMAW250 07 WHT SMAW250 03 WHT AWG26 10 AWM1007 CK OA 50V 102Z CK OA 50V 104Z FR 1 AS 1267 FR 1 ASH 2417ER Q TY 18000BTU 24000BTU 1 1 1 1 1 1 1 1 2 2 1 1 1...

Page 47: ...CAPACITOR CHIP CAPACITOR C ELECTRONIC CHIP CAPACITOR CHIP CAPACITOR C ELECTRONIC ROOM THERMISTOR CHIP TR CHIP TR CRYSTAL CRYSTAL IR LED IR LED MICOM LCD Specification MCR18EZH F 60 4K MCR18EZH F 120K MCR18EZH F 30KF MCR18EZH J 2 0 MCR18EZH F 6 8K MCR18EZH J 68 MCR18EZH J 1 2K MCR18EZH F 50K MCR18EZH J 5 6K MCH315A 104Z MCH315A 103Z SE 47 ßfi 6 3V MCH315A 101K MCH315A 150K SE 1ßfi 50V 103AT 2 KSH 2...

Page 48: ...8 5 Samsung Electronics MEMO ...

Page 49: ...Samsung Electronics 9 1 9 Wiring Diagrams 9 1 Indoor Unit ...

Page 50: ...S SOLENOID COIL CH CRANK CASE HEATER C1 2 CAPACITOR FM1 FAN MOTOR F FUSE 2A 250V S SPARK KILLER ASH 2417ER ASH 1808DR CAPACITOR FM1 2 5uF 450VAC 2 5uF 450VAC COMP 45uF 450VAC 40uF 400VAC MARK NAME MARK NAME 52C MAGNETIC CONTACTOR TB 1 2 TERMINAL BLOCK 20S SOLENOID COIL FM1 FAN MOTOR F FUSE 2A 250V S SPARK KILLER CAPACITOR ASH180UE ASH181UE 2 5 40uF 450VAC ...

Page 51: ...Samsung Electronics MEMO ...

Page 52: ...Samsung Electronics 10 1 10 Schematic Diagrams 10 1 Indoor Unit ...

Page 53: ...Samsung Electronics 10 2 10 2 Remote Control ...

Page 54: ...om without prior written permission of Samsung Electronics Co Ltd NoteMaster 486P Series Service manual First edition June 1994 Printed in Korea Trademarks IBM is a registered trademark and IBM PS 2 Personal System 2 MCA Micro Channel AT XT Monochrome Graphics Adapter MDA Color Graphics Adapter CGA enhanced Graphics Adapter EGA and Video Graphics Array VGA are trademarks of International Business ...

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