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Samsung AC052MNCDKH, Service Manual

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AIR CONDITIONER

CONTENTS

SYSTEM AIR CONDITIONER

CEILING SERIES

1.  Precautions

2.  Product Specifications

3.  Disassembly and Reassembly

4.  Troubleshooting

5.  PCB Diagram

6.  Wiring Diagram

7.  Reference Sheet

INDOOR UNIT

OUTDOOR UNIT

Model :

AC052MNCDKH

AC071MNCDKH

AC100MNCDKH

AC120MNCDKH

AC140MNCDKH

AC052MXADKH

AC071MXADKH

AC052MNCDKH
AC071MNCDKH

AC071MXADKH

AC052MXADKH

AC100MNCDKH
AC120MNCDKH
AC140MNCDKH

Summary of Contents for AC052MNCDKH

Page 1: ...ons 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference Sheet INDOOR UNIT OUTDOOR UNIT Model AC052MNCDKH AC071MNCDKH AC100MNCDKH AC120MNCDKH AC140MNCDKH AC052MXADKH AC071MXADKH AC052MNCDKH AC071MNCDKH AC071MXADKH AC052MXADKH AC100MNCDKH AC120MNCDKH AC140MNCDKH ...

Page 2: ...2 2 3 Specifications of optional items 2 6 3 Disassembly and Reassembly 3 1 3 1 Indoor unit 3 2 3 2 Outdoor Unit 3 15 4 Troubleshooting 4 1 4 1 Setting Option Setup Method 4 1 4 2 Indoor Display Error and Check Method 4 10 4 3 Troubleshooting for outdoor unit 4 13 4 4 Troubleshooting by symptoms 4 15 5 PCB Diagram and Parts List 5 1 5 1 Indoor Unit 5 1 5 2 Outdoor Unit 5 4 6 Wiring Diagram 6 1 6 1...

Page 3: ...aused by tracking or short circuit Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches Check the status of the components assembly after repair service The status must be the same as before the repair service 1 2 Precautions related to static electricity and PL The PCB power supply block is susceptible to static electricity Ther...

Page 4: ...k Instruct end users to separate the batteries from the remote controllers and store them separately when the product is not used for long time Otherwise leakage from the dry cell may cause problems with the remote controller 1 4 Other precautions The pipes should have no leaks during installation and the compressor must be stopped before removing connecting pipes for pump down work Operating the ...

Page 5: ...of Product 2 1 1 Features Auto Changeover Long Lasting Outdoor Unit Anti Corrosion Cabinet Heat Exchanger are applied Free Installation 4 directions piping installation are possible Various useful functions Long piping Max 30m Eco friendly Product Lead Free RoHS WEEE ...

Page 6: ...onsumption Cooling STD W 1 640 2 930 Heating STD W 1 780 2 920 Operation current Cooling STD A 7 4 12 8 Heating STD A 7 9 12 8 Noise Cooling Heating Indoor unit In case of strongest air blow dBA 49 49 51 51 Outdoor unit In case of strongest air blow dBA 58 58 60 60 Refrigerant R 410A g 1 300 1 500 Connecting Pipe Liquid mm 6 35 6 35 Gas mm 12 7 15 88 Additional Refrigerant R 410A g m 10 20 Standar...

Page 7: ...oling STD W 3 400 3 400 Heating STD W 3 200 3 200 Operation current Cooling STD A 14 6 5 3 Heating STD A 14 2 4 9 Noise Cooling Heating Indoor unit In case of strongest air blow dBA 50 50 50 50 Outdoor unit In case of strongest air blow dBA 58 60 58 60 Refrigerant R 410A g 3 000 3 000 Connecting Pipe Liquid mm 9 52 9 52 Gas mm 15 88 15 88 Additional Refrigerant R 410A g m 50 50 Standard m 5 5 Exte...

Page 8: ...oling STD W 4 600 4 550 Heating STD W 3 800 3 800 Operation current Cooling STD A 20 4 7 2 Heating STD A 17 1 5 9 Noise Cooling Heating Indoor unit In case of strongest air blow dBA 50 50 50 50 Outdoor unit In case of strongest air blow dBA 60 64 60 64 Refrigerant R 410A g 3 000 3 000 Connecting Pipe Liquid mm 9 52 9 52 Gas mm 15 88 15 88 Additional Refrigerant R 410A g m 50 50 Standard m 5 5 Exte...

Page 9: ...n Cooling STD W 4 450 4 450 Heating STD W 4 540 4 540 Operation current Cooling STD A 20 7 Heating STD A 19 5 7 Noise Cooling Heating Indoor unit In case of strongest air blow dBA 51 51 51 51 Outdoor unit In case of strongest air blow dBA 60 62 60 62 Refrigerant R 410A g 3 400 3 400 Connecting Pipe Liquid mm 9 52 9 52 Gas mm 15 88 15 88 Additional Refrigerant R 410A g m 50 50 Standard m 5 5 Extens...

Page 10: ...ONS MANUAL DE INSTRUCCIONES ISTRUZIONI PER L USO MANUAL DE INSTRU ÍES MANUEL D UTILISATION GEBRAUCHSANWEISUNG Splut type Room Air Conditioner Aire acondicionado domŽstico sistema Split Condizionatore d aria per ambienti ad unitˆ Separate Aparelho de ar condicionado tipo Split Climatiseur de type sŽparŽ Geteilte raumklimaanlage OWNER S INSTRUCTIONS MANUAL DE INSTRUCCIONES ISTRUZIONI PER L USO MANUA...

Page 11: ...RAIN HOSE JOINT DB67 01191A 1 Ass y Drain Hose Joint DB90 06701A 1 GROMMET HANGER DB63 00237A 8 CARD WARRNATY DB68 02596B 1 OWNER S INSTRUCTIONS MANUAL DE INSTRUCCIONES ISTRUZIONI PER L USO MANUAL DE INSTRU ÍES MANUEL D UTILISATION GEBRAUCHSANWEISUNG Splut type Room Air Conditioner Aire acondicionado domŽstico sistema Split Condizionatore d aria per ambienti ad unitˆ Separate Aparelho de ar condic...

Page 12: ...Samsung Electronics 3 1 Item Remarks SCREW DRIVER Adjustable Wrench 8mm 10mm 13mm M6 M8 Hex Wrench Necessary Tools 3 Disassembly and Reassembly ...

Page 13: ...3 2 Samsung Electronics 3 1 Indoor Unit AC052MNCDKH AC071MNCDKH ...

Page 14: ...4BNTVOH MFDUSPOJDT P 1BSUT 1SPDFEVSF 3FNBSL BO PUPS FUBDI UIF TDSFX BOE VOUJF FBSUI XJSF PG PUPS JTDPOOFDU PG IPVTJOH PG PUPS 8JSF JTDPOOFDU UIF BQBDJUPS 8JSF 3 3 ...

Page 15: ...4BNTVOH MFDUSPOJDT P 1BSUT 1SPDFEVSF 3FNBSL PPTFO UIF VBSE 4BGFUZ CZ SFNPWJOH TDSFXT FUBDI UIF 6QQFS BTF PG BO PPTFO UIF TDSFXT XIBU JT GJY UIF PUPS FUBDI UIF BO BOE PUPS BTTFNCMZ 3 4 ...

Page 16: ...SL PPTFO UIF TFU GJYJOH CPMUT XJUI B XSFODI FUBDI UIF BO SBJO 1BO JTDPOOFDU UIF JTQMBZ 1 8JSF BT TIPXO JO QJDUVSF XIJUF IPVTJOH JTDPOOFDU UIF 4UFQ PUPS 8JSF BT TIPXO JO QJDUVSF CMVF IPVTJOH JTBTTFNCMF UIF BOHFS SBDLFU CZ SFNPWJOH UIF TDSFX 4BNTVOH MFDUSPOJDT 3 5 ...

Page 17: ...1BSUT 1SPDFEVSF 3FNBSL PPTFO UIF TDSFXT PG SPOU 4JEF JTBTTFNCMF UIF BTTFNCMZ SPOU PWFS 1BSU JTDPOOFDU UIF 4UFQ PUPS 8JSF BT TIPXO JO QJDUVSF FUBDI UIF 8JSF MBNQ GJYFE JO BTF 1BSU FUBDI UIF SPOU PWFS BTTFNCMZ DPNQMFUFMZ 3 6 ...

Page 18: ...TVOH MFDUSPOJDT P 1BSUT 1SPDFEVSF 3FNBSL PPTFO UIF TDSFX XIBU JT GJY XJUI BTF 1BSU BOE SBJO 1BO 6QQFS 4JEF PPTFO UIF TDSFX XIBU JT GJY XJUI BTF 1BSU BOE SBJO 1BO PXFS 4JEF FUBDI UIF SBJO 1BO DPNQMFUFMZ 3 7 ...

Page 19: ... 5IFSNJTUPS 8JSF BT TIPXO JO QJDUVSF XIJUF IPVTJOH PPTFO UIF TDSFXT TIPXO JO QJDUVSF PPTFO UIF TDSFXT TIPXO JO QJDUVSF BOE SFNPWF 1MBTUJD 1BSU XIJUF PPTFO UIF TDSFXT TIPXO JO QJDUVSF BOE SFNPWF 4UFFM SBDLFU JTBTTFNCMF UIF TDSFXT 4UFFM 1MBUF JO SFBS TJEF PG UIF VOJU 3 8 ...

Page 20: ...4BNTVOH MFDUSPOJDT P 1BSUT 1SPDFEVSF 3FNBSL PPTFO UIF TDSFXT BT TIPXO JO QJDUVSF FUBDI UIF 1MBTUJD PWFS BT TIPXO JO QJDUVSF FUBDI UIF WBQPSBUPS BTTFNCMZ 3 9 ...

Page 21: ... QJDUVSF PPTFO UIF TDSFXT BT TIPXO JO QJDUVSF JTBTTFNCMF UIF MBEF BOE 4UFQQJOH PUPS BTTFNCMZ BOE SFNPWF UIF 4DSFXT 4UFQQJOH PUPS JTQMBZ 1 PPTFO UIF TDSFXT JO SFBS TJEF PG SPOU PWFS BTTFNCMZ BT TIPXO JO QJDUVSF JTBTTFNCMF JTQMBZ 1 BTTFNCMZ BOE JTDPOOFDU 8JSF JTBTTFNCMF UIF JTQMBZ 1 3 10 4BNTVOH MFDUSPOJDT ...

Page 22: ...2 screws AC036HBCDBD AC036JBCDBD AC060HBCDBD AC060JBCDBD AC040JBCDBD 3 2 Samsung Electronics 3 1 Indoor Unit No Parts Procedure Remark 1 Electrial Part 1 Open the Grille by sliding 4 position and removing 4 screws 2 Detach the Air Inlet Grille 3 Detach the Cover side by removing 1 screw and sliding Cover 4 Open the cover of Component Electrical Box by removing 2 screws 5 Open the cover of Terminal...

Page 23: ...AC060HBCDBD AC060JBCDBD 2EA Samsung Electronics 3 3 No Parts Procedure Remark 2 Fan Motor 1 Disconnect 2 wires of Motor 2 Detach Holder Motor by removing 2 screws 3 Detach the Upper case of Fan AC036HBCDBD AC036JBCDBD AC040JBCDBD 3EA AC060HBCDBD AC060JBCDBD 4EA 4 Detach Bracket Grille by removing 2 Screws Bracket Grille AC036JBCDBD AC036JBCDBD AC040JBCDBD 1EA AC060HBCDBD AC060JBCDBD 2EA Samsung El...

Page 24: ...tallerremovedrainpan thewaterindrianpancanbepoured 3 4 Samsung Electronics No Parts Procedure Remark 3 Drain Pan 1 Detach the Cabinet Front by removing 7 screws 2 Remove 1 screw in the middle of drain pan 3 Detach the Drian pan Be careful that there might be some water left in the drain pan when you remove the drain pan 4 Evaporator 1 Detache the Cover Pipe by removing 2 screws 2 Detache the Cover...

Page 25: ...he Evaporator assembly by removing 3 screws 5 Stepping Motor 1 Detach the Connector 2 Detache the Stepping Motor by removing 2 screws 6 Holder Blade 1 Remove 4 screws at both side of the Holder blade Samsung Electronics 3 5 3 Detach the Evaporator assembly by removing 3 screws 5 Stepping Motor 1 Detach the Connector 2 Detache the Stepping Motor by removing 2 screws 6 Holder Blade 1 Remove 4 screws...

Page 26: ... Remark 1 common work You must turn off the Power before disassembly 1 Loosen 1 pcs screw of cover control 2 Loosen 8 pcs screw of the cabi top cover 3 Loosen 4 pcs screw of the bar steel 4 Loosen 10 pcs screw of the cabi side front CAUTION 3 2 Outdoor unit ...

Page 27: ... Samsung Electronics No Parts Procedure Remark 1 common work 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 ...

Page 28: ...ts Procedure Remark 2 3 Loosen 4 pcs motor screw 4 Loosen 2 pcs screw of bracket motor 3 Assy control out 1 Loosen the screws that connected partition and case control then get the control out 2 Loosen the screw of the cover termimal ...

Page 29: ...3 18 Samsung Electronics No Parts Procedure Remark 3 3 Loosen 2 screws disassemble the Coil Harmonic 4 Loosen the screw of the cover terminal ...

Page 30: ... 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 31: ...nics AC071MXADKH No Parts Procedure Remark 1 common work 1 loosen 1 pcs screw of cover control 2 loosen 8 pcs screw of the cabi top cover 3 loosen 12 pcs screw of the cabi front 4 loosen 7 pcs screw of the cabi side right ...

Page 32: ...Parts Procedure Remark 5 loosen 3pcs screw of the cabi side left 2 Fan Motor 1 loosen the fan screw according the indication and detach the fab propeller 2 Cut the cable tie 3 disconnect the wire betwwen assy control out and motor ...

Page 33: ...s Procedure Remark 4 loosen 4 pcs motor screw 5 loosen 4 pcs screw of bracket motor 3 assy control out 1 lossen the screw of the cover termimal 2 lossen the screws that connected partition and case control then pull up the control out ...

Page 34: ...rk 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 5 Compressor 1 loosen the 3 bolts at the bottom of compres sor ...

Page 35: ... buttons simultaneously insert the batteries into the remote control c Make sure that you are entered to the mode for setting the options 2 Set the option values CAUTION The total number of available options are 24 SEG1 to SEG24 Because SEG1 SEG7 SEG13 and SEG19 are the page options used by the previous remote control models the modes to set values for these options are skipped automatically Set a...

Page 36: ...G4 value by pressing the Low Fan button repeatedly until the value you want to set appears on the remote control display SEG4 b Set the SEG5 value by pressing the High Fan button repeatedly until the value you want to set appears on the remote control display When you press the Low Fan or High Fan button values appear in the following order SEG5 4 Press the Mode button Dry and On appear on the rem...

Page 37: ... 8 Press the Mode button Heat and On appear on the remote control display 9 Set the SEG11 and SEG12 values a Set the SEG11 value by pressing the Low Fan button repeatedly until the value you want to set appears on the remote control display SEG11 b Set the SEG12 value by pressing the High Fan button repeatedly until the value you want to set appears on the remote control display When you press the...

Page 38: ...e by pressing the High Fan button repeatedly until the value you want to set appears on the remote control display When you press the Low Fan or High Fan button values appear in the following order SEG17 3 Press the Mode button Dry and Off appear on the remote control display 4 Set the SEG18 and SEG20 values a Set the SEG18 value by pressing the Low Fan button repeatedly until the value you want t...

Page 39: ...l display SEG23 b Set the SEG24 value by pressing the High Fan button repeatedly until the value you want to set appears on the remote control display When you press the Low Fan or High Fan button values appear in the following order SEG24 3 Check whether the option values that you have set are correct by pressing the Mode button repeatedly SEG21 SEG22 SEG23 SEG24 SEG24 SEG24 SEG2 SEG3 SEG4 SEG5 S...

Page 40: ...ntrol according to your air conditioning system plan by referring to the following table and by following the steps in Common steps for setting the addresses and options on page The indoor unit addresses main and RMC addresses are set to 0A0000 100000 200000 300000 by default If indoor units and outdoor units match 1 1 you don t need to set the main address because it is automatically set by the o...

Page 41: ...ude a power supply F1 1 L 2 M F2 V1 V2 F3 F4 Indoor Unit 2 Set the installation options of indoor units by referring to the following table and by following the steps in Common steps for setting the addresses and options on page The installation options of indoor units are set to 020000 100000 200000 300000 by default The SEG20 option Individual control with remote control allows you to control mu...

Page 42: ... Indication Details Indication Details 2 0 Disuse Slave disable Level control 0 Thermo on 0 Disuse 0 Use of buzzer 2 1000 hours 1 On Off control 2 Off control 3 Window on off control 4 Disuse Master enable Level control 1 Operation on 1 Use 1 Disuse of buzzer 6 2000 hours 5 On Off control 6 Off control 7 Window on off control Option SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Function Page Individual cont...

Page 43: ...rnal control Level control Indoor 1 Indoor 2 Indoor 3 Indoor 4 Default Not set 0 Slave All Disuse Use 4 Not set 0 Not set 0 Not set 0 Master Indoor 1 Slave Indoor 2 3 4 Use Indoor 3 Disuse Not set 0 Not set 0 1 3 Not set 0 Slave All Use Indoor 4 Use Not set 0 Not set 0 Not set 0 5 7 Master Indoor 4 Slave Indoor 1 2 3 4 1 4 Changing the addresses and options individually When you want to change the...

Page 44: ...ipe sensor Displayed on appropriate indoor unit which is operating Displayed on outdoor unit Communication error Transmitter wired remote control Error of indoor unit Displayed on the indoor unit regardless of operation Communication error between indoor units Error of outdoor unit Displayed on the indoor unit which is operating Error of peripherals option set up EEPROM error EEPROM option error H...

Page 45: ...open short X X X Error of outdoor Unit Self Diagnosis X X X Error of the indoor unit pipe sensor X X High pressure blockage error X X X Indoor fan error X X Thermal fuse open error X X Indoor unit float S W 2nd detection X X On Blinking X Off If you turn off the air conditioner when the LED is flickering the LED is also turned off If you re operate the air conditioner it operates normally at first...

Page 46: ...fter initial power is supplied E202 Communication error between indoor unit and outdoor unit When there is no response from indoor units after tracking is completed E203 Communication error between outdoor unit inv main micom For PF 4 6 controller error will be determined from the time when compressor is turned on E221 Error on outdoor temperature sensor Short or Open E231 Error on outdoor COND OU...

Page 47: ...or unit and outdoor unit When there is no response from indoor units after tracking is completed Check electrical connection and setting between indoor unit and outdoor unit 10 E203 Communication error between the outdoor unit and main micom For PF 4 to 6 controllers error will be determined from the time when the compressor is turned on Check electrical connection and setting between indoor unit ...

Page 48: ...EPROM Read Write error Option Check Outdoor EEPROM Data 33 E471 Outdoor unit EEPROM Read Write error H W Check Outdoor EEPROM PBA 34 E472 AC Line Zero Cross Signal out 35 E473 Comp Lock error 36 E474 Error on IPM Heat Sink sensor of inverter 1 Short or Open Check Outdoor Inverter PBA 37 E475 Error on inverter fan 2 FAN2 ERROR 38 E484 PFC Overload Over current Error Check Outdoor Inverter PBA 39 E4...

Page 49: ...the right Yes Is indoor temperature sensor disconnected from the connector in PCB CN412 Restart the system after replacing the PCB Restart the system after connecting to the PCB connector Indoor temperature sensor failure replace Remove the indoor temperature sensor connector from the PCB and measure the resistance between two terminals Current temperature C Resistance kΩ 40 5 800 3 35 6 900 3 30 ...

Page 50: ...right Yes Is indoor temperature sensor disconnected from the connector in PCB CN413 Restart the system after replacing the PCB Restart the system after connecting to the PCB connector EVA sensor failure replace Remove the indoor temperature sensor connector from the PCB and measure the resistance between two terminals Current temperature C Resistance kΩ 70 2 229 3 60 3 021 3 50 4 160 3 40 5 828 3 ...

Page 51: ... 4 4 3 Float switch Open No No Yes Is the resistance 0Ω Yes Is the wire connector disconnected from the PCB CN411 Replace the PCB and restart the unit Connect the connector to PCB restart the unit Replace the float switch and restart the unit Remove the wire connector from the PCB and measure the resistance between two terminals ...

Page 52: ...Is there E154 after above 6 minute LED of BLDC PBA is turned on Yes Yes Yes Is the motor connector disconnected from the PCB CN301 Replace the PCB and restart the unit Connect the connector to PCB and restart the unit Replace the PCB and restart the unit Check the stuck by external substance and remove it Replace the Motor or PCB and restart the unit ...

Page 53: ...MAIN PCB Failure Option error 4 4 5 EEPROM error No No Yes Is the error mode disappear Yes Is the EEPROM PCB disconnected from the MAIN PCB CN201 The indoor unit work normaly Connect the EEPROM PCB to MAIN PCB and restart the unit Replace the PCB and restart the unit Reconnect the EEPROM PCB to MAIN PCB ...

Page 54: ... controller display E163 Symptom EEPROM option setting error Failure Option error 4 4 6 Option error No Yes Is the error mode disappear The indoor unit work normaly Replace the PCB and restart the unit Input the right option to EEPROM PCB ...

Page 55: ...l Fuse Open No No Yes Is the resistance 0Ω Yes Is the wire connector disconnected from the terminal block and PCB CN140 Replace the PCB and restart the unit Connect the connector to PCB and terminal block before restart the unit Replace the Terminal Block and restart the unit Remove the wire connector from the PCB and measure the resistance between two terminals ...

Page 56: ... and exchange the indoor unit PCB Remove the communication cable connecting the outdoor unit to indoor unit and measure the signal on LINE 2 of the outdoor unit with a scope Reconnect the cable connecting the outdoor unit to the indoor unit and restart the unit If the communication still doesn t work e h t e c a l p e r indoor unit PCB and Check the communication cable in each PCB and replace the ...

Page 57: ...e controller display E422 Symptom Clogging of outdoor s service valve Failure Valve clog 4 4 9 Outdoor s service valve Clog No Yes Is the outdoor service valve clogged Open the outdoor s service valve Replace the PCB and restart the unit ...

Page 58: ... the wired remote controller connected correctly 2 Check procedure Yes Turn off the main power switch circuit break of power outlet and turn on again after 30 seconds Check the input power No Is the outdoor unit power supply L N 220V Yes Check the connection of the terminal block No Is the outdoor unit power voltage L N 220V Yes Replace the inverter PBA No Is the voltage between the terminal 2 and...

Page 59: ...Samsung Electronics 4 25 Yes Outdoor unit is not powered on Initial diagnosis 1phase cont Yes Connect the reactor No Is the reactor connector connected correctly Replace the PBA Cont ...

Page 60: ... connection of the outdoor unit terminal block Check the connection wires and connectors of the indoor and outdoor units Replace the PCB of the indoor unit if the PCB Transformer fuse pcd etc fails Replace the wired remote controller Turn off the main power switch circuit break of power outlet and turn on again after 30 seconds Is the outdoor unit power supply N R N S N T 220Vac Is the outdoor uni...

Page 61: ... Yes Yes Reconfigure the option DIP switches Check the system depending on the error display No No Are the option DIP switches inside the wired remote controller configured correctly Is there an error message displayed on the wired remote controller display Check the target temperature Cont ...

Page 62: ...Is the communication cable between the indoor unit and outdoor unit connected correctly 2 Isn t the power cable and 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...

Page 63: ...ce similar to the table on the left After confirming the state is normal end the service No Yes Replace the outdoor unit PBA Power is on After confirming the state is normal end the service Example COND sensor outdoorunittemperaturesensormeasuringresistancevaluebytemperature E231 E221 Example OLPsensor dischargetemperaturesensormeasuringresistancevaluebytemperature E320 E251 Current temperature C ...

Page 64: ...erates normally The indoor EEV operates normally The indoor heat exchanger sensor displays the temperature ok Outdoor unit display E403 Criteria All the operating indoor machines do not reach 4 C for more than five minutes Cause of problem Check if the indoor FAN MOTOR operates normally Check if the indoor EEV operates normally Check the indoor heat exchanger s IN OUT sensor Check for clogging in ...

Page 65: ...peline ex filter Outdoor unit display E416 Criteria The compressor temperature above 110 C Cause of problem Insufficient coolant Clogging in the outdoor machine s solenoid valve Clogging in the sub valve Malfunctioning exhaust gas temp sensor Clogging in the pipeline and the filter Liquid EEV damaged 1 How to check Test operation Check the amount of coolant Connect S net to vacuum Forceful Open th...

Page 66: ...causes this error E441 The indoor machine remocon ON signal If the outside temperature is below 10 C before the AC runs this error occurs Causeofproblem OLP SENSOR temp above Trip_Dis 1 How to check The above malfunction codes do not indicate a malfunction of the product All you have to do is change the temperature suitably for the limits shown in the manual When the product malfunctions if the ac...

Page 67: ...minal of sensor satisfy the resistance value in accordance with temperature 4 Is the resistance value of sensor connection pull_up correct 2 Troubleshooting procedure Isn t the Fan locked 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 ...

Page 68: ...oubleshooting procedure Yes Restart after power off Is the restart error occurred again Is the interphase resistance value of compressor u v v w w 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 ...

Page 69: ...utdoor unit display E462 E484 Criteria The outdoor machine input current above I_Trip Causeofproblem Check the compressor input voltage error for low voltage Check the overcurrent option setting 1 How to check Overcurrent option setting ok Compressor input voltage supplied ok Check the input power terminal Correct the overcurrent setting ...

Page 70: ...n Check the amount of coolant Check the OLP sensor 1 How to check No No No No No Yes Yes Yes Check the amount of coolant The sensor s resistance normal Refer to E20 The outdoor indoor EEV operates normally All the sub valves open Clogging in the pipeline ex filter Test operation Replace the OLP sensor Connect S net to vacuum forceful Open the sub valve Check the EEV Check the pipeline ...

Page 71: ... the 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 term...

Page 72: ... each 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...

Page 73: ...pty and open all the service valves on the gas and liquid pipes Change and connect the pipes immediately and empty the pipes and then open the service valves Check the replacement of the EEV body coil and the refrigerant leaking part After that recharge Check the temperature value through S NET etc and then if there is a fault replace and reconnect No No No No Check the opening of the outdoor unit...

Page 74: ...turesensorError E500 IPMisoverheated CheckIPMiswellassembledtoheatsink Checkwhetherinletportisclogged ChangeIPMifitisdefectiveone 5 E554 Gasleakerror Checkrefrigerantcharge CheckIndoorEVAsensor CheckServicevalveisopen Checkthepipesandwirescorrectlyconnected 6 E556 Capacitymissmatchbetweenindoorandoutdoor Checkthemodelnameofindoorandoutdoorunitandsetoptioncodeonindoorunitagain 7 Outdooroverloadprot...

Page 75: ...0 20 BLK 8 CN83 EXTERNAL SIGNAL SMW250 02 RED 9 CN413 EVEA IN OUT DIS SMW200 06 NTR 10 CN411 FL SW SME250 02 BLK 11 CN103 DRAIN PUMP YW396 02V YEL 12 TE04 COM1 12V COM2 DAPC 2009 6P 13 CN311 2WIRE OPTION BMW200 12 wht 14 CN401 HUMAN SENSOR SMW200 05 RED 15 CN804 VENTILATOR SMW250 02 BLU 16 CN201 EEPROM PBA CONNECTOR B7P MQ WHT 17 CN801 SPI MODULE SMW250 04 YEL 18 CN805 LOUVER 1 2 SMW200 10 NTR 19 ...

Page 76: ...EL FLOAT S W 5 3711 000939 CN81 SMW250 04 RED VEMTILATOR 6 3711 000796 CN83 SMW250 02 RED ON OFF EXTERNAL SIGNAL 7 3711 000744 CN1 TDW236 01 WHT ERROR CHECK COMP CHECK 8 3711 002001 CN301 YDW200 20 BLK SPI MODULE 9 3711 007817 CN201 B7P MQ WHT COM1 COM2 10 3711 004773 CN311 BMW200 12 WHT DOWNLOAD 11 3711 005097 CN601 SMW200 05 BLU POWER INPUT 12 3711 001037 CN302 SMW250 06 RED DISPLAY 13 3711 0009...

Page 77: ...MW200 10 WHT EVA DIS OUT SENSOR 16 3711 003895 CN501 SMW200 13 WHT 2WIRE OPTION 17 3711 000794 CN411 SMW250 02 BLK LOUVER 18 3711 000015 CN412 SMW250 02 WHT ROOM TEMP 19 3711 004236 CN413 SMW200 06 NTR EEPROM PBA 20 3711 004236 CN413 EVA DIS OUT SENSOR SMW200 06P WHT 1 EVA IN SIGNAL 3 EVA OUT SIGNAL 5 DISCHARGE SIGNAL 2 4 6 GND 1 L 3 N ...

Page 78: ...5 4 Samsung Electronics 5 2 Outdoor Unit MAIN PCB AC052MXADKH 5 4 3 2 1 7 6 8 9 10 11 12 ...

Page 79: ...GE THERMISTOR 5 6 COND THERMISTOR 1 10 Download 1 DV310V 3 GND 4 DC15V 5 FAN_PWM 6 FAN_Feedback 1 10 Download 1 COMP U Phase 2 COMP V Phase 3 COMP W Phase 1 2 Reactor CN030 4WAY VALVE CN951 SIGNALTOSUBPCB CN252 THERMISTOR CN851 S NET Communication CN701 EEV CN901 BLDC MOTOR CN302 Communication COM1 CN551 Downloader CN251 THERMISTOR CN451 COMP POWER CN201 Downloader CN051 Reactor ...

Page 80: ...5 6 Samsung Electronics SUB PCB AC052MXADKH 1 2 1 DC12V 2 GND 1 28 SIGNAL TO MAIN PCB CN12 DC12V CN951 SIGNALTOMAINPCB ...

Page 81: ...T 3 COMM YW 396 02V RED 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 MOTOR YAW396 06V WHT 13 ENABLE CGND SMW250 03 RED 14 INV DOWNLOAD YDAW200 20TR BLK ...

Page 82: ...Samsung Electronics 6 1 6 Wiring Diagram 6 1 Indoor Unit This Document can not be used without Samsung s authorization AC052MNCDKH AC071MNCDKH ...

Page 83: ...6 2 Samsung Electronics This Document can not be used without Samsung s authorization AC100MNCDKH AC120MNCDKH AC140MNCDKH ...

Page 84: ...Samsung Electronics 6 3 6 2 Outdoor unit AC052MXADKH AC071MXADKH This Document can not be used without Samsung s authorization ...

Page 85: ...opicalTemp B Non Inv Side GeneralTemp N Non Inv Side LowTemp R Non Inv Side TropicalTemp Z Non Inv Top TropicalTemp U UNITED STATUS DUCT K DVM PLUS4 V DVM Inverter L DVM SLIM G DVM GHP M DVM MINI W DVMWATER C DVM GEO GEOTHERMAL D DVM PLUS3 X DVM PLUS2 J FREE JOINT MULTI P PACK MULTI H DVM HOME E SINGLE T MULTI Y MONO ProductType Indoor Code Type F FLAGSHIP P PREMIUM D DELUXE S STANDARD F CASCADE G...

Page 86: ...liquid to gas Absorbing heat required for evaporation SERVICE VALVE You can open the valve by turning the need valve counterclockwise using hex wrench and it is used for vacuum gas purging coolant injection coolant purging and indoor outdoor unit connection ACCUMULATOR Accumulator prevents the flow of liquid state coolant into the compressor Liquid state coolant flowing into the compressor will ov...

Page 87: ...ervice Manual 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 Ltd Jun 2016 Printed in China ...

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