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Samsung AC009KNLDCH, Service Manual

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Samsung AC009KNLDCH Service Manual Download Page 49

Samsung Electronics

4-25

4-5-13 Compressor start error

 1. Checklist 

:

   

1) Is the connection of cable for the compressor and power?

   

2) Is the interphase resistance of compressor normal?

 2. Troubleshooting 

procedure

Yes

Restart after power off.

Is the restart error occurred again?

Is the interphase resistance value of 

compressor(u

l

v, v

l

w, w

l

u) normal?

Is the connection cable for the

compressor and power terminal normal?

Exchange the PCB.

Terminate the service.

Exchange the compressor.

Is the compressor body and 

interphase resistance insulated?

Exchange the compressor.

Correct the cable connection.

Yes

Yes

Yes

No

No

No

No

Summary of Contents for AC009KNLDCH

Page 1: ...AIR CONDITIONER CONTENTS Refer to the service manual in the GSPN see the rear cover for the more information 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram and Parts List 6 Wiring Diagram 7 Reference Sheet AC009KNLDCH AC012KNLDCH AC018KNLDCH AC009KXADCH AC012KXADCH AC018KXADCH SLIM DUCT SERIES ...

Page 2: ...nit 3 2 3 2 Outdoor Unit 3 8 4 Trouble shooting 4 1 4 1 Indoor Display Error and Check Method 4 1 4 2 Outdoor LED Error Display and Check Method 4 5 4 3 Setting Option Setup Method 4 7 4 4 Items to be checked first 4 12 4 5 Fault Diagnosis by Symptom 4 13 4 6 PCB Inspection Method 4 28 4 7 Main Part Inspection Method 4 30 5 PCB Diagram and Parts list 5 1 5 1 INDOOR MAIN PCB 5 1 5 2 Outdoor Unit Ma...

Page 3: ...d by an incorrect installation When installing the built in type air conditioner keep all electric cables such as the power cable and the connection cord in pipes ducts or cable channels to protect them from the danger of impact or any other incidents 1 2 Power supply and circuit breaker If the power cord of the air conditioner is damaged it must be replaced by the manu facturer or a qualified per...

Page 4: ...to ISO standard for energy efficiency 1 3 During operation Do not repair the air conditioner at your discretion It is recommended to contact a service center directly Never spill any kind of liquid on the air conditioner If this happens turn off the air conditioner and contact an authorized service cen ter Do not insert anything between the airflow blades to prevent damage of the inner fan and con...

Page 5: ...BLDC inverter technology it makes a room cool with highly energy saving and arises the efficiency of air conditioner Long Piping Length Height It can give the benefit to the installers and aries the reliability of the air conditioner Long Ambient Operation In Low Temperature It can arise the reliability and the capacity of the air conditioner especially operated in low temperature Eco friendly Pro...

Page 6: ... Outdoor Unit mm 790 x 548 x 285 790 x 548 x 285 Shipping Dimension WxHxD Indoor Unit mm 951 x 280 x 709 951 x 280 x 709 Outdoor Unit mm 926 x 640 x 384 926 x 640 x 384 Weight NetWeight Indoor Unit kg 19 97 19 97 Outdoor Unit kg 34 45 34 45 Shipping Weight Indoor Unit kg 23 62 23 62 Outdoor Unit kg 37 5 37 5 Harness Specifications Indoor Fan Motor DB31 00672A DB31 00672A Compressor UG9T115FUAEQ UG...

Page 7: ...ion WxHxD Indoor Unit mm 900 x 199 x 600 Outdoor Unit mm 880 x 638 x 310 Shipping Dimension WxHxD Indoor Unit mm 1151 x 280 x 709 Outdoor Unit mm 1023 x 730 x 413 Weight NetWeight Indoor Unit kg 26 0 Outdoor Unit kg 44 5 ShippingWeight Indoor Unit kg 31 0 Outdoor Unit kg 48 0 Harness Specifications Indoor Fan Motor DB31 00672A Compressor UG4T150LNBEQ Outdoor Fan Motor DB31 00642A Piping High Press...

Page 8: ...ZIONI PER L USO MANUAL DE INSTRU ÍES MANUEL D UTILISATION GEBRAUCHSANWEISUNG Splut type Room Air Conditioner Aire acondicionado domĿstico sistema Split Condizionatore d aria per ambienti ad unitˆ Separate Aparelho de ar condicionado tipo Split Climatiseur de type sĿparĿ Geteilte raumklimaanlag e OWNER S INSTRUCTIONS MANUAL DE INSTRUCCIONES ISTRUZIONI PER L USO MANUAL DE INSTRU ÍES MANUEL D UTILISA...

Page 9: ...Samsung Electronics 3 1 3 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKEY SPANNER ...

Page 10: ... 6 screws AC009 012KNLDCH 2 Disassemble 2 Cover Blower Uppers Unscrew 2 screws AC018KNLDCH Disassemble the Cover Blower Upper with pushing its hook 3 Disassemble the Cover Control Unscrew 2 screws AC009KNLDCH AC012KNLDCH AC018KNLDCH 3 1 Indoor Unit Stop operation of the air conditioner and remove the power cord before repairing the unit ...

Page 11: ... Disassemble Motor Wires connected to the inside of PCB and connected to the Capacitor 5 Disassemble the band Motor for fixing the Moter Unscrew 2 screws 6 After disassembling the Motor and Blower for the set disassemble the Blower by use of 3mm wrench ...

Page 12: ... 2 Drain Pan 1 Disassemble the Cabinet Top Evap Unscrew 11 screws AC018KNLDCH Unscrew 5 screws AC009 012KNLDCH 2 Disassemble the Bracket Outlet Sub that fixes the Drain Pan equipped on the front of the set 3 Disassemble the Drain Cushion from the set ...

Page 13: ...es the high low pressure Pipe Unscrew 2 screws 2 Disassemble the refrigerant temperature sensor Inlet air temperature sensor and EEV wire that connected to the inside of PCB 3 Disassemble the Support Evap LF that fixes the Evaporator Unscrew 2 screws 4 Disassemble the Support Evap RH Unscrew 2 screws ...

Page 14: ... 5 Disassemble the Evaporator form the set 4 Drain Pump 1 Disassemble the Cover that fixes the Drain Pump Unscrew 4 screws 2 Disassemble the Drain Pump and Flow switch wire that connected to the inside of PCB 3 Disassemble the Drain Pump form the set ...

Page 15: ... Parts Procedure Remark 4 Control In 1 Disassemble all Control Wires connected to the inside of PCB 2 Unscrew the earth screw 3 Press the hook as picture shown disas semble the PCB 4 Disassemble the case control Unscrew 2 screws ...

Page 16: ...s Procedure Remark 1 common work 1 loosen 1 pcs screw of cover control and detach it 2 loosen 5 pcs screws on both right and left cabniet side edges and to detach the cover top 3 Loosen 7 screwsfixed to disassemble cabi front and detach it 3 2 Outdoor Unit ...

Page 17: ...ung Electronics 3 9 No Parts Procedure Remark common work 4 loosen 7 screws to disassemble the cabi right and detach it 5 loosen 2 screws to disassemble steel bar 6 loosen 3 screws to disassemble cabi left ...

Page 18: ... No Parts Procedure Remark 2 fan motor 1 loosen 1 screw as indication and detached the fan 2 loosen 4 pcs motor screws and disconnect the wire betwwen assy control out and motor 3 loosen 2 pcs bracket motor screw and detach it ...

Page 19: ... screw from cover control 2 detach several connections from assy con trol out take out assy control out 4 Heat exchanger 1 Release the refrigerant at first 2 Looosen fixing screw on both side 3 Disaessembly the pipes in both inlet and outlet with welding torch 4 detach the heat exchanger ...

Page 20: ...3 12 Samsung Electronics No Parts Procedure Remark 5 compressor 1 Disconnect the compressor lead wire 2 Disassembly the felt comp sound loosen the 3 bolts at the bottom of ...

Page 21: ...cedure Remark 1 common work You must turn off the Power before disassembly 1 Loosen 2 pcs screw of cover control 2 Loosen 8 pcs screw of the cabi top cover 3 Loosen 9 pcs screw of the cabi side right 4 Loosen 7 pcs screw of the cabi side front CAUTION ...

Page 22: ...rts Procedure Remark 2 Fan motor 1 Loosen the fan screw according the indication and detach the fab propeller 2 Disconnect the wire between assy control out and motor 3 Loosen 4 pcs motor screw 4 Loosen 2 pcs screw of bracket motor ...

Page 23: ...ark 3 Assy control out 1 Loosen 2 screws that connected with parti tion 2 Disconnect the wire between the control kit and the tube then get out the control out 2 Loosen 2 screws disassemble the Coil Harmonic 2 Loosen the screw of the cover terminal ...

Page 24: ... on both side 3 Disassemble the pipes in both inlet and outlet with welding torch 4 Detach the heat exchanger CAUTION When removing the compressor Heat Exchanger and Pipe purge the Coolant inside the Compressor complete ly and remove the pipe with a welding flame 5 Compressor 1 Loosen the 3 bolts at the bottom of com pressor ...

Page 25: ...rror of temperature sensor in the indoor unit Open Short X X X X Error of heat exchanger sensor in the indoor unit X X X Error of the outdoor temperature sensor Error of the condensor temperature sensor Error of the discharge temperature sensor X X X 1 No communication for 2 minutes between indoor units Communication error for more than 2 minutes 2 Indoor unit receiving the communication error fro...

Page 26: ...ation error between indoor units X X X 1 Error of electronic expansion valve close 2 Error of electronic expansion valve open 3 2 nd detection of high temperature cond 4 2 nd detection of high temperature discharge 5 Error of reverse phase 6 Compressor down due to 6th detection of freezing X X Clogging of outdoor s service valve X X Detection of the float switch X X X Error of setting option switc...

Page 27: ...Primary Current Over Trip error Inverter DC PEAK error O C Inverter Compressor Rotation error Inverter Current Sensor error Inverter DC LINK Sensor error Inverter EEPROM Read Write Error Inverter Heatsink temperature over Error Outdoor unit Capacity Setup option error Communication error between Indoor unit and wired remote control Communication error between Master and Slave wired remote control ...

Page 28: ...OWN_1 Protection Control COMP down due to Low PressureSensor Protection Control 1 MCU SOL Valve cooling heating opening 1st at the same time MCU SOL Valve cooling heating opening 1st at the same time Outdoor Unit Communication Error Outdoor Unit communication error to Indoor Unit System Down All Indoor unit Short due to Communication Error Error due to repeated communication address Error on float...

Page 29: ...or temperature sensor Short or Open 8 E251 Error on discharge temperature sensor of compressor 1 Short or Open 9 E231 Error on outdoor COND OUT sensor Short or Open 10 E320 Error on OLP sensor Short or Open 11 E485 Error on input current sensor of inverter 1 Short or Open 12 E474 Error on IPM Heat Sink sensor of inverter 1 Short or Open 13 E425 Reverse phase or open phase 14 E422 Blockage detected...

Page 30: ...ooling operation restricted at outdoor temperature below Tcool_low value default 0 C 36 E556 Error due to mismatching capacity of indoor and outdoor unit 37 E557 DPM remote controller option error 38 E198 Error on thermal fuse of indoor unit Open 39 E121 Error on room temperature sensor of indoor unit Short or Open 40 E122 Error on EVA IN sensor of indoor unit Short or Open 41 E123 Error on EVA OU...

Page 31: ... you don t press the t Setting indoor unit option code is only possible in Master wired remote controller You can only check the indoor unit option code in Slave wired remote controller t Setting indoor unit option code is possible when one indoor unit is connected If more than 2 indoor units are connected you can only check the Master indoor unit option code t Press the button anytime during setu...

Page 32: ...on with remote controller option Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same time You need to set twice when setting indoor unit address and installation option Setting an indoor unit address 1 Press the and buttons at the same time for more than 3 seconds and then a Main menu will be displayed 2 Press the button t...

Page 33: ...e button to set the installation option code in order Press button to go to the next page SGE1 SGE2 SGE3 SGE4 SGE5 SGE6 0 2 RESERVED Exterior temperature sensor Central control RESERVED SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 1 Drain pump RESERVED RESERVED RESERVED Master Slave SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 2 External control External control output Virus doctor Buzzer Number of hours using filter ...

Page 34: ...Use of buzzer 2 1000 Hour 1 ON OFF Control 1 Operationon 1 Use 1 Non use of buzzer 6 2000 Hour 2 OFF Control 3 WINDOW ON OFF Control Option SEG19 SEG20 SEG21 SEG22 SEG23 Explanation PAGE control of a remote controller Heating setting compensation RESERVED Away Set OFF Timer Indicationand Details Indication Details Indication Details Indication Details Indication Details 3 0 or 1 Indoor 1 0 Disuse ...

Page 35: ...n When it is out of input the appropriate option code t If you input the inappropriate option code error may occur or the air conditioner is out of order The option code must be inputted correctly by the installation specialist or service agent Model AC009KNLDCH AC012KNLDCH AC018KNLDCH AA Static Pressure mmAq Option code for indoor unit 0 SP 2 5 01C06C 1C6933 271A21 370000 01C06C 1C7968 272328 370...

Page 36: ...y 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 temperature of the air blew 2 Compressor stops operation intermittently in DRY mode Compressor operation is controlled automatically in DRY mode depending on the room ...

Page 37: ... Check Inner wiring of outdoor unit Abnormal Check outdoor unit terminal block voltage on L N for indoor unit 230Vac nominal Check cable and connection of wire between indoor and outdoor unit Abnormal Check indoor unit terminal block voltage on L N 230Vac nominal Check Indoor control PCB Transformer and FUSE on PCB and replace one which is broken Abnormal Check indoor unit terminal block voltage o...

Page 38: ...R PCB Check and correct the wire or socket connection Check Fuses listed blow FUSE3 EMI PCB FUSE MAIN PCB No Is there miss connection of power and communication wire between indoor and outdoor Correct the cable wiring between indoor and outdoor Check F1 F2 communication line wiring CN50 MAIN PCB Check and correct the wiring Replace the FUSE Replace INVERTER PCB Also check each BLDC FAN moto short ...

Page 39: ...r case broken No Take off each Fan motor housing after 1 minutes from turning off the power Follow the check procedure of outdoor unit power supply error check No Is each resistance of FAN cable housing pin 1 3 over 1Mohm pin 4 3 5 3 and 6 3 over 1Kohm on each FAN motor Mount each Fan housing to PCB socket and turn on the power Exchange INVERTER PCB No Is the Pin voltage 1 3 of CN40 and 41 over 25...

Page 40: ...f outdoor unit Outdoor unit cover Fan front obstruction etc 7 Is there no ventilation obstruction at the surrounding of indoor unit Overload condition in heating mode 2 Troubleshooting procedure No Yes Yes Are the service valves full opened Yes Yes Check AC power source No No Reinstall and remove the obstruction Is the installation of outdoor unit good Reinstall and remove the obstruction No Is th...

Page 41: ...ompressor in 3 minutes off Check the resistance value of 4 WAY valve coil Go to the next page 4 WAY valve main body error Attach the sensor correctly Over shortage of the refrigerant Connect the connecter correctly 4 WAY valve coil error Exchange the outdoor PCB No Yes Yes Yes OK Yes No No No NG No Is much frost in the indoor heat exchanger Does the 4 WAY valve operate normally Is the outdoor air ...

Page 42: ...ted correctly Dose the voltage of DC300V apply to the connector of outdoor fan during the operation of outdoor unit The over shortage of refrigerant Insufficient Capacity Load estimation error Connect the connector Outdoor fan error Check the motor wire Exchange the out PCB EEV coil error Connect the connector Is much frost in the heat exchanger Is much frost in the heat exchanger Outdoor PCB erro...

Page 43: ...he resistance value of sensor connection pull_up correct 2 Troubleshooting procedure Is the sensor connector connected correctly in accordance with a color Is the temperature sensor connected correctly without separation Does the both terminal of sensor satisfy the resistance value in accordance with temperature Refer to the R T TABLE Is the resistance value of sensor connection pull_up 18K Reconn...

Page 44: ...tor connected correctly in accordance with a color Is the temperature sensor connected correctly without separation Does the both terminal of sensor satisfy the resistance value in accordance with temperature Refer to the R T TABLE Is the resistance value of sensor connection pull_up 24K Reconnect the sensor connector Change the position of sensor Exchange the sensor Exchange the PCB Exchange the ...

Page 45: ...or connected correctly in accordance with a color Is the temperature sensor connected correctly without separation Does the both terminal of sensor satisfy the resistance value in accordance with temperature Refer to the R T TABLE Is the resistance value of sensor connection pull_up 18 2K Reconnect the sensor connector Change the position of sensor Exchange the sensor Exchange the PCB Exchange the...

Page 46: ...Is the connector connected correctly Is the color of Fan wire matched correctly Remove the Fan lock Connect the connector Exchange the Fan Exchange the PCB Normal operation Exit Yes Yes Yes No No No No 4 5 10 DC Link voltage sensor error 1 Checklist 1 Is the connection of R S T power wire normal 2 Are Relay RY21 and R200 on the INVERTER PCB mounted normally 2 Troubleshooting procedure Yes No Check...

Page 47: ...he compressor wire connected to the compressor normally Yes Yes Exchange the compressor Reinstall and remove the obstruction Is the installation of outdoor unit good Reinstall and remove the obstruction Is the installation of indoor unit good Open valve screw to the end Are the service valves full opened Correct the compressor wire connection Is insuration resistance between each compressor termin...

Page 48: ...nd communication cable wiring error 2 Troubleshooting procedure Yes Restart after power off Is the communication error occurred again Isn t the power cable and communication cable wiring error Exchange the outdoor unit PCB Terminate the service Correct the wrong wiring Is the connection of communication cable normal Correct the connection of communication cable Yes Yes No No No ...

Page 49: ...ure Yes Restart after power off Is the restart error occurred again Is the interphase resistance value of compressor ulv vlw wlu normal Is the connection cable for the compressor and power terminal normal Exchange the PCB Terminate the service Exchange the compressor Is the compressor body and interphase resistance insulated Exchange the compressor Correct the cable connection Yes Yes Yes No No No...

Page 50: ...dure Yes Restart after power off Is the lock error occurred again Is the interphase resistance value of compressor ulv vlw wlu normal Is the connection cable for the compressor and power terminal normal Exchange the PCB Terminate the service Exchange the compressor Is the compressor body and interphase resistance insulated Exchange the compressor Correct the cable connection Yes Yes Yes No No No N...

Page 51: ...ach contact Yes No Exchange M C Check and reconnecting the AC power cable wire Is the AC Power cable connection to the outdoor unit terminal block good Check and reconnecting the reactor wire at the TAB terminal Is the connection of reactor terminal good Replace the blown FUSE Are the FUSEs on EMI PCB blown Is each contact resistance normal less than 0 1ohm Does the error reappear frequently The c...

Page 52: ...wer supplying circuit 1 Display PCB part LED lamps Switch Remocon module 1 INDOOR EMI PCB part Line filter Noise Capacitor and Varistor 3 The PCB is composed of the 3 part in the outdoor unit 1 EMI PCB part Line filter for electrical noise Varistors for surge and Fuses 1 MAIN PCB part Refrigeration cycle controller with MICOM 1 INVERTER PCB part Compressor driving inverter and BLDC fan controller ...

Page 53: ...CB 1 Is RED LED ON 2 Is GREEN LED Blinking once a second 3 Is LEDs displaying error code pattern t 1 QPXFS USPVCMF t CBE DPNNVOJDBUJPO CFUXFFO JOEPPS BOE outdoor unit t FSSPS EFUFDUJPO 5 Check LED display on INVERTER PCB 1 Is RED LED ON 2 Is GREEN LED Blinking once a second 3 Is LEDs displaying error code pattern t 7 35 3 1 QPXFS USPVCMF t 0 DPNNVOJDBUJPO CFUXFFO BOE INVERTER PCB t FSSPS EFUFDUJPO...

Page 54: ...rt Outdoor Unit Discharge Temperature Sensor Measure sensor resistance with a multimeter Normal At the normal temperature 563kΩ 157kΩ 0 C 30 C see 12 2 7 Abnormal 0Ω Open or Short Outdoor Unit BLDC FAN MOTOR Measure terminal resistance with a multimeter Normal At the normal temperature 10 C 30 C Abnormal 0Ω Open or Short Outdoor Unit 4way Valve Solenoid Measure resistance with a multimeter Normal ...

Page 55: ...ischarge SMW250 02 YEL Indoor Fan TAP YW396 09AV WHT Temperature Sensor SMW250 02 YEL Ventilator YW396 03AV BLK Wired Remote Controller Power YW396 02 WHT Drain Pump YW396 03AV YEL External Control S W Part SMW250 02 RED Hot Coil YW396 03AV RED EEV SMW250 05 BLU SMW250 05 BLU Indoor Fan SSR YW396 03AV RED Display SMW200 11 WHT SMW200 11 WHT Power YW396 03AV WHT External Control Display Part SMW250...

Page 56: ... YW396 06V WHT 5 COMM YW396 02V RED 6 SUB PBA POWER SMW200 05P BLK 7 EEV1 SMW250 05 RED 8 COMP DBT061 3P WHT 9 SMPS SMW250 03 BLU 10 EEPROM B7P MQ WHT 11 TEMP SENSOR SMW200 08P WHT 12 MAIN DOWNLOAD YDW200 20 BLK 13 SUB PBA SMW200 10P BLK 14 DRED SMW250 05 WHT 15 INV DOWNDOWN YDAW200 20TR BLK 16 SUB PBA SMW200 10P WHT 17 ENABLE CGND SMW250 03 RED 1 3 5 6 8 10 12 13 15 2 4 7 9 11 14 16 17 ...

Page 57: ...D 4 TEMP SENSOR SMW200 08P WHT 5 DRED SMW250 05 WHT 6 SUB PBA SMW200 10P WHT 7 SUB PBA SMW200 10P BLK 8 EEV1 SMW250 05 RED 9 SMPS SMW250 03 BLU 10 EEPROM B7P MQ WHT 11 MAIN DOWNLOAD YDW200 20 BLK 12 BLDC FAN YAW396 06V WHT 13 ENABLE CGND SMW250 03 RED 14 INV DOWNDOWN YDAW200 20TR BLK 1 2 4 3 6 5 7 11 12 8 10 9 13 14 5 5 ...

Page 58: ...5 4 Samsung Electronics ...

Page 59: ...Samsung Electronics 6 1 This Document can not be used without Samsung s authorization 6 Wiring Diagram 6 1 Indoor Unit AC009KNLDCH AC012KNLDCH AC018KNLDCH ...

Page 60: ...6 2 Samsung Electronics This Document can not be used without Samsung s authorization 6 2 Indoor Unit AC009KXADCH AC012KXADCH AC018KXADCH ...

Page 61: ...nd sent to the evaporator COMPRESSOR Low temperature and low pressure coolant is compressed and sent to the cycling system EVAPORATOR Liquid coolant sucked in through the capillary tubes cools down the room by absorbing the sur rounding heat as it evaporates converting from liquid to gas Absorbing heat required for evaporation SERVICE VALVE You can open the valve by turning the need valve counterc...

Page 62: ...E 220 240V 50Hz F F 208 230V 60Hz 3Ф G G 380 415V 50Hz 3Ф H H 380V 60Hz 3Ф J J 460V 60Hz 3Ф K K 220 240V 50 60Hz 1Ф M M 127V 50Hz N N 380 415V 50 60Hz 3Ф Year E 2012 F 2013 G 2014 H 2015 J 2016 Buyer Name Capacity Series C COOLING ONLY R410a H HEAT PUMP R HEAT RECOVERY D COOLING ONLY R22 E HEAT PUMP A Cooling only R134A B Heat Pump N N A H C H 0 H 0 H 9 H K H N H L H D H C H H H H A H A H A Featur...

Page 63: ...Samsung Electronics 7 3 ...

Page 64: ...nual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law Samsung Electronics Co Oct 2015 Printed in China Code No DB68 00000A 1 ...

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