Samsung ASH-0906ER Service Manual Download Page 1

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CONTENTS

AIR CONDITIONER

1. Precautions

2. Product Specifications

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

SERVICE

Manual

ROOM AIR CONDITIONER

ASH-0906ER
ASH-1206ER

Summary of Contents for ASH-0906ER

Page 1: ...ications 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 SERVICE Manual ROOMAIRCONDITIONER ASH 0906ER ASH 1206ER ...

Page 2: ... extension cord and avoid tapping into a power cord This practice may result in malfunction or fire 6 After completing repairs and reassembly check the insulation resistance Procedure Prior to applying power measure the resistance between the power cord and the ground terminal The resistance must be greater than 30 megohms 7 Make sure that the grounds are adequate 8 Make sure that the installation...

Page 3: ...Samsung Electronics 1 2 Memo ...

Page 4: ...r of core wire 250V 10 16A 250V 10 16A Fuse capacity A 3 15 3 15 Outer Width x Height mm 925x298x170 530x750x245 925x298x170 530x750x245 dimension x Depth inch 36 43x11 73x6 69 20 87x29 53x9 65 36 43x11 73x6 69 20 87x29 53x9 65 Weight kg 11 5 29 11 9 33 Refrigerant pipe Liquid OD mm x L m 6 35 x 5 6 35 x 5 GAS 9 52x 5 12 7x 5 Drain hose ID mm x L mm 17x 2000 17x 2000 Type Rotary Rotary Motor Type ...

Page 5: ... 1 Indoor Unit 2 2 2 Outdoor Unit 공기 흡입 공기배출 정면도 배면도 925 298 170 63 190 21 취부판 실내기 외형선 원격조정기 Remote control Front view Rear view Air out Air in 123 5 123 5 37 258 5 228 5 142 Installation plate 245 정면도 750 418 5 530 배면도 245 Front view Rear view ...

Page 6: ...me 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 timer set mode If the TIME button is pressed once the time decrease by one minute during the time set mode and ten minutes during the timer s...

Page 7: ...relative humidity below 60 RH the unit operates in FAN mode compressor ON OFF Time is controlled compulsorily can not set up the fan speed always breeze Protective function Low temperature 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 ...

Page 8: ...NG SET button then the blade rotates vertically by 11 The BLADE H location is dispalyed on REMOTE CONTROL total 7 steps 12 Q TIMER Q timer quick timer allows reservation or cancel the timer on and timer off quickly When Q timer button is pressed at operating 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...

Page 9: ... in a high place 3 Make 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 yo...

Page 10: ... more 400mm or more Indoor unit Piping Tape Vinyl A Indoor unit gas leak test check point Piping may be laid to the rear left right or down Cut the piping hole sloped slightly B Drain hose installation Piping Liquid 1 4 Clamper tube Piping Gas 1 2 Installation plate Installation tube Pipe connection Vinyl tape Screw Putty Drain hose Right Rear Down Rear Left Remote control holder Remote control A ...

Page 11: ...oles as illustrated in the left figure 4 When the anchor bolts are already driven in the wall also utilize the anchor bolts holes to 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 window frame Use the paper patten for installation of the wood pillar 2 As the left Fig Fix the wood pillar at the wood ...

Page 12: ...the indoor unit and the assembly cable in lower part of it Wind tape round them Right hand connection with piping Left hand connection with piping Under side connection with piping 1 Open the rear left Bush Body 1 Open the rear right Bush Body 2 Cut out the Holder pipe slit part 3 Support the above section to be bent with your hand and bend the pipes there 1 Cut out the knock out piece from the un...

Page 13: ...le as illustrated in the installation diagram of indoor and outdoor unit Installation of drain line In heating and de ice operation condensed water may be generated Install drain line as following procedure 1 Insert drain plug into hole and then connect drain hose to drain plug Inside diameter of drain hose is 18mm Grounding The parts for this work are optional The grounding screw hole is located ...

Page 14: ...9 52mm 1 8 12 7mm 2 0 Unproper flaring Inclined Surface damaged Cracked Uneven thickness D A 3 Insert a flare nut into the pipe and modifty flare 90 Slanted Rough Pipe Reamer Flare modification procedure 1 Cut the pipe using a pipe cutter 2 Remove burrs at the tip of the pipe cut Caution Burrs not removed may result in leakage of gas ...

Page 15: ...e 3 Check refrigerant leakage of each joint parts A B C D in right figure 4 Open the 2 way valve again 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 Leaking If leaking tighten the flare nut one more time If continues to leak although the pipe fixing area h...

Page 16: ...9 Close the cap of each valve 7 Stop operation of the air conditioner 6 Open the refrigerant tank and fill with refrigerant until the rated pressure is reached It is recommended not to pour the refrigerant in too quickly but gradually while operating a pressure valve 5 Check the pressure indicated by the pressure gauge low pressure side Standard pressure is should be 4 5 5 5kg cm2 in a reqular hig...

Page 17: ...10g of refrigerant R 22 for every 1m Air Purge Method Purge air using a vaccum pump or an additional refrigerant cylinder Refrigerant Quantity refer to specification sheet Add 10g of refrigerant R 22 for every 1m Connection Pipe Length 5m Max 5 10m At installation Outter diameter 160 300 500 200 350 550 6 35 9000Btu 12000Btu Liquid Side 9 52 9000Btu Gas Side 12 7 12000Btu Gas Side Torque kg cm Fix...

Page 18: ... to the outdoor unit At this time cover the valve of the outdoor unit and the other pipe using a cap or vinyl plug to avoid foreign material entering 6 Make sure you do not bend the connection pipes in the middle and store together with the cables 7 Move the indoor and outdoor units to a new locatioon 8 Remove the mounting plate for the indoor unit and move it to a new location 1 Remove the caps f...

Page 19: ...Samsung Electronics 3 14 Memo ...

Page 20: ...en the cover screw and loosen three fixing screws of front grille 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 Take the electroprecipitator out 6 Loosen the two of the fixing screws 7 Loosen one of the right fixing screws and separate the terminal cover 8 Pull the upper center of discharge softly for the outside ...

Page 21: ...ector of PCB upper side out 4 If pulling the Main PCB up it will be taken out 1 Do 1 and 2 above 2 Separate the holder at the rear side of Indoor unit 3 Take the display PCB out Parts Procedure Remark Assembling method Make four brackets of the outer cover to be hunged at the indoor unit Make the brackets of the outer cover of upper center of discharge to be hunged securely Take care of not breaki...

Page 22: ...nd take the water bath front and keep the distance a little from the indoor unit 5 Loosen the left and right screw of the heat exchanger 6 Pull tray drain out from the Back body Parts Procedure Remark 7 Lifting up the heat exchanger a little and open to the left to separate the heat exchanger from the left brackets ...

Page 23: ...g screws of motor and lift the fixing hole up in forward direction and push backward to separate 3 Loosen the fixing screws of motor fan By use of M3 wrench Separate the motor from the fan Separate the fan from the left holder bearing Parts Procedure Remark Assembling Method Insert the left and right brackets of the outer cover of indoor unit If it is not Inserted the distance of water bate is not...

Page 24: ...Separate the cable connector and loosen the fixing screw to separate the connector box 3 Loosen the two fixing screws and separate the upper cabinet 4 Loosen eleven fixing screws and separate the front cabinet 1 Do 1 above 2 Separate the two fixing screws of protection mesh from the front side of the front cabinet Parts Procedure Remark ...

Page 25: ...rate the motor 1 Do 1 above 2 Loosen three fixing screws of left and front side and separate the front cabinet 3 Disassemble the inlet and outlet pipe by welding 4 Loosen one fixing screw of right side and separate the heat exchanger 1 Do 1 above 2 Open the terminal cover of compressor and unscrew the connection terminal 3 Disassemble the inlet and outlet pipe of compressor by welding 4 Disassembl...

Page 26: ...or 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 reference to a temperatur...

Page 27: ... KA7805 IC06 normal 4 5VDC 5 5VDC 2 Troubleshooting procedure N N N Y Y Y N Y Remove power cord and plug in again in approx 5 seconds Is operation lamp blinking in 3minutes and then lamp off DC voltage of receiver module output normal squarewave Ass y Display PCB replace DC voltage of DISPLAY PCB normal Refer to page 5 4 5 6 Refer to remote control unit fault diagnosis Istransmissiondisplay ofther...

Page 28: ...ug in again in approx 5 seconds Is operating lamp blinking in 3 minutes and then lamp off PCB module is faulty Does operation start to indoor unit fan when run stop button on the remote control unit pushed AC voltage between yellow and blue wires when fan speed select button set at Hi Above190V Fan motor or fan motor capacitor is faulty Q401 KSC945 Y is faulty Micom IC01 is faulty IC03 KA2657 is f...

Page 29: ...th the outdoor unit wire 2 Troubleshooting procedure Y N N Y 60Hz N N N Y Y Y Remove power cord and plug in again in approx 5 seconds Is operating lamp blinking in 3 minutes and then lamp off Voltage at pin 46 of micom IC01 High level Normal Micom IC01 is faulty Driver IC03 KA2657 is faulty Relay RY72 is faulty Compressor or compressor capacitor is faulty Voltage at pin 15 of IC03 KA2657 Low level...

Page 30: ...re 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 Normal Micom IC01 is faulty Driver IC02 KA2657 is faulty Voltage at pin 33 36 of micom IC01 change Squarewave Volatge at pin 10 13 of IC02 KA2657change Squarewave UP DOWN louver motor is faulty Does operation start when swing button of the remote control unit pushed ...

Page 31: ... LCD display status of REMOCON normal Voltage at PIN 30 of Remocon Micom change Receiver module LTM 9431 is faulty Check as in the procedure No Power parts Refer to page 5 2 Beep sound heard from the indoor unit when ON OFF button on the remote control unit pushed Transmission display lamp blinking when ON OFF button on the remote control unit pushed Normal Replace battery LCD is faulty Replace bu...

Page 32: ...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 soldering any part care should be exercised not to apply any high wattage soldering iron to the part ...

Page 33: ...rimary 198 264V 2 AC voltage at both end of transformer secondary 15 25V 3 DC voltage at OUT and GND of IC05 KA7812 12VDC 4 DC voltage at OUT and GND of IC06 5VDC 5 DC voltage at Q201 Base and GND change squarewave Voltage check 1 Voltage of relay RY72 coil Voltage at pin 15 pin 9 of IC03 12VDC 2 Voltage at Terminal Tap CN71 and RY72 Terminal N0 198 264V 1 Compressor does not operate 1 Compressor ...

Page 34: ...does not change from 0V to 5V Normal At ambient temperature 10 30 Abnormal ОΪ open or short Measure resistance between red wire and each terminal Normal Approx 380Ϊ at ambient temperature 20 30 Abnormal ОΪ open or short Parts Temp Sensor Heat ex Sensor Outdoor Sensor Indoor Fan Motor Outdoor Fan Motor Stepping Motor UP DOWN swing motor between Red Yellow Red Blue Resistance 175 10Ϊ 315 15Ϊ between...

Page 35: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor unit new 6 05 6 14 6 10 PM Page 6 1 ...

Page 36: ...00 Ass y panel F Panel LED V Inlay switch SW Slide Thermistor Ass y Guard air filter Ass y tray drain Blade H LW Blade H UP Blade V Blade Blade connector Motor louver Ass y evaporator Ass y evaporator Ass y power cord Band motor Connector wire outdoor Ass y main PCB Ass y main PCB Cover PCB Terminal cover Ass y display PCB Knob switch Motor fan in Ass y fan cross Holder bearing Ass y Bearing Beari...

Page 37: ...ng Electronics 6 3 1 0 1 7 2 1 2 1 6 1 1 1 3 6 6 6 7 9 3 8 3 6 8 6 1 2 7 1 4 1 5 4 3 1 5 6 2 6 3 6 4 6 5 9 1 8 2 8 1 9 2 1 7 1 1 8 6 2 Outdoor Unit 19 19 1 19 2 19 3 19 4 19 5 new 6 05 6 14 6 03 PM Page 6 3 ...

Page 38: ...ropeller Motor fan out Compressor Compressor Nut flange Terminal cover Relay over load Relay over load Olp spring Nut hex Washer comp Isolator grommet Gasket Ass y base comp Ass y base comp Ass y check v v Valve check Valve Packed 1 4 Ass y 4 way v v Valve 4 way Valve Packed 1 2 Valve Packed 3 8 Capacitor dual Capacitor dual Ass y cond Cabi Side Cabi upper Cover Valve up Cover Valve low Handle cab...

Page 39: ...2 0041 02 P2031 0135 00 P4042 0011 00 P4073 0011 01 P0873 0031 00 P4014 0085 02 P3322 0096 00 Ass y remocon Case remocon LW Rubber button B LCD LCD Rubber button A Case remocon UPP Door remocon Window remocon Filter remocon Inlay remocon Holder remocon ASH 1206ER ABS NBR HLC8707 AT 025ZAR NBR ABS ABS PC PC ABS ABS 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Parts List 6 3 Remote Control PCB Bo...

Page 40: ...3065 0147 A6010 1530 P9403 0445 00 A3006 0087 B1294 0040 P6219 0006 00 COVER PCB MICOM THERMISTOR ASS Y TRANS POWER C FILM POWER RELAY FUSE CONNECTOR WAFER ASS Y DISPLAY PCB SWITCH SLIDE MODULE REMOCON SENSOR HUMIDITY MB89635R 180 103AT 240 240 EF33 X 41 1 5ß fi 400VAC G4A 1A 250V 250V 3 15A SMAW 250 12 ASH 1205ER 2C2P LTM 9431 38 C3 M3 1 4VAC 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 2 4 ...

Page 41: ...Samsung Electronics 6 7 Memo new 6 05 6 14 6 03 PM Page 6 7 ...

Page 42: ...ER SELECT TEMPERATURE SELECT SLEEP SELECT TIME SETTING COMPOR CONTROL SIGNAL OUTDOOR FAN CONTROL SIGNAL 4 WAY VALVE CONTROL SIGNAL STEPPING MOTOR CONTROL SIGNAL BUZZER CONTROL SIGNAL TRIGER SIGNAL SSR COMPOR DRIVE OUTDOOR FAN DRIVE 4 WAY VALVE DRIVE STEPPING MOTOR DRIVE BUZZER DRIVE RESET CIRCUIT OSCILLATION CIRCUIT MODESELECT SWITCH INDICATOR PANNEL COOL HEAT LED TIMER LED FAN ONLY LED DE ICE LED...

Page 43: ... 27 19 35 24 Cooling Max over load 16 18 14 18 32 23 43 26 Low temp 1 4 1 4 21 16 21 16 Standard 18 20 32 36 60 70 20 7 6 Heating Max over load 36 40 65 75 27 21 16 Deice 28 32 40 45 20 2 1 INDOOR UNIT OUTDOOR UNIT Heat exchanger Evaporator Gas side 3 way valve 2 way valve Liquid side Capillary tube Cooling Gas leak check point Cross fan Heat exchanger Condenser Propeller fan Heating Capillary tub...

Page 44: ...Samsung Electronics 7 3 Memo ...

Page 45: ...Samsung Electronics 8 1 8 PCB Diagrams 8 1 Main PCB ...

Page 46: ...YRISTOR IC VOLT REGU IC VOLT REGU SCREW PH HEAT SINK C FILM R CARBON R CARBON R CARBON R CARBON R CARBON R CARBON R CARBON R METAL FILM R METAL FILM R METAL FILM COIL LINE FILTER C FILM C CERAMIC C CERAMIC C CERAMIC C ELECTROLYTIC C ELECTROLYTIC C ELECTROLYTIC C ELECTROLYTIC TR W RESISTOR TR W RESISTOR TR GENERAL POWER RELAY RESONATOR CERAMIC IC MCU WIRE SO COPPER WIRE SO COPPER WIRE SO COPPER IC ...

Page 47: ...0040 A6010 1530 P6434 0275 00 A3006 0087 A6040 0011 P2203 0049 00 P6029 0275 00 LED LAMP LED LAMP LED LAMP LED LAMP HUMIDITY SENSOR MODULE REMOCON CONNECTOR WAFER C W DISPLAY SWITCH SLIDE WIRE SO COPPER BASE LED V PCB DISPLAY HOT MELT LTL 52EG ORG GRN LTL4254 011 YEL LTL 4234 011 GRN LTL 4294 011 ORG C3 M3 LTM 9431 38 SMAW250 12 ASH 1205ER KSA 2241 PI 0 6 SN T 52MM ABS ASH 1205ER 1 1 1 1 1 1 1 1 1...

Page 48: ...IP RESISTOR CHIP 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 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 6 3V MCH315A 101K MCH315A 150K SE 1 50V 103AT 2 KSH 29 KS...

Page 49: ...Samsung Electronics 8 5 Memo ...

Page 50: ...ng Electronics 9 1 9 Wiring Diagrams 9 1 Indoor Unit 9 2 Outdoor Unit CAPACITOR ASH 0906ER 1 5 30μ F 370VAC ASH 1206ER 1 5 30μ F 450VAC RED RED RED RED RED RED RED RED RED RED RED RED RED RED RED RED RED RED ...

Page 51: ...Samsung Electronics 9 2 Memo ...

Page 52: ...Samsung Electronics 10 1 10 Schematic Diagrams 10 1 Indoor Unit new10 05 6 14 5 50 PM Page 10 1 ...

Page 53: ...Samsung Electronics 10 2 10 2 Remote Control new10 05 6 14 5 50 PM Page 10 2 ...

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