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Samsung AF24FSSDA N Series, Service Manual

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Samsung AF24FSSDA N Series Service Manual Download Page 89

PCB Diagram

5-6

Samsung Electronics

5-1-5  Ass'y PCB sUB (TOUCH)

①

#1. VCC

#2. GND

#3. Downloading

#4. Downloading

#5. Downloading

②

#1. VCC

#2. TOUCH Transmission signal

#3. TOUCH Reception signal

#4. GND

CN02 - Downloading

CN01

 – CONTROL PBA Connection

1

Summary of Contents for AF24FSSDA N Series

Page 1: ...nit Outdoor Unit AF28FVSDASSN AF28FVSDASSX AF28FVZDASSN AF28FVZDASSX KFR 72L EMS1 KFR 72W EMS1 KFR 50L EMS1 KFR 50W EMS1 AF28FSSDASSN AF28FSSDASSX AF28FSZDASSN AF28FSZDASSX AF27FSSDASSN AF27FSSDASSX AF24FSSDASSN AF24FSSDASSX 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference Sheet ...

Page 2: ...odeis indicatedontheindoortemperaturedisplayarea 4 12 4 4 4 When indoor temperature sensor error code is indicated on the indoor temperature display area 4 13 4 4 5 When indoor pipe sensor error code is indicated on the indoor temperature display area 4 14 4 4 6 When Indoor fan motor error code top middle bottom is Indicated onthe Indoor temperature display area 4 15 4 4 7 Whenmixedoperationerrorc...

Page 3: ...n 4 35 4 4 28 When the remote controller stops working 4 36 4 4 29 When the touch buttons stop working 4 37 15 PCB Diagram 5 1 5 1 PCB Diagram 5 1 5 1 1 ASS Y PCB Main IN 5 1 5 1 2 ASS Y PCB MAIN CONTROL 5 3 5 1 3 ASS Y PCB DISPLAY 5 4 5 1 4 ASS Y PCB POWER 5 5 5 1 5 ASS Y PCB SUB TOUCH 5 6 5 1 6 ASS Y PCB SUB LIGHT 5 7 5 1 7 ASS Y PCB SUB NETWORK 5 8 5 1 9 ASS Y PCB MAIN OUT 5 9 16 Wiring Diagram...

Page 4: ...case any wire or power plug has been damaged replace it to eliminate any possible danger Do not bend the power cord by force and do not put any heavy object on the power cord There is a danger of electric shock or fire Do not use multi socket There is a danger of electric shock or fire Ground the product if necessary Be sure to ground the product if there is any danger of electric leakage due to w...

Page 5: ...0 100 10 AF24FSSDASSN 48 8m 50 100 10 5 stage purifying system fine grade free filter four season cleaning filter antibacterial heat exchanger antibacterial fan Virus Doctor Smart sensor A camera on the top of the indoor unit detects movement and if there is no movement over a certain period of time the air conditioner automatically adjusts the indoor temperature keeps the energy saving mode depen...

Page 6: ...de Air conditioner operation mode Current operation mode is displayed Temperature Outdoor unit operation Mute Virus doctor Fan speed Timer Cleaning Smart sensor operation good sleep mode Air conditioner operation mode Current operation mode is displayed Temperature Outdoor unit operation Mute Virus doctor Fan speed Defrost indicator Timer ...

Page 7: ...on Code No Color Model Name ASSY PANEL OUTLET DB92 02699A TWILIGHT DEEP BRONZE AF28FVSDADFN KFR 72L EMB1 AF28FSSDADFN ASSY PANLE INLET DB92 02701A ASSY PANEL OUTLET DB92 02699B TWILIGHT WHITE AF28FVZDAWKN KFR 72L EMA1 KFR 50L EMA1 AF28FSSDAWKN AF28FSZDAWKN AF27FSSDAWKN AF24FSSDAWKN AF28FVSDAWKN ASSY PANLE INLET DB92 02701B ...

Page 8: ...TWILIGHT DEEP BRONZE TWILIGHT WHITE TWILIGHT DEEP BRONZE TWILIGHT WHITE TWILIGHT WHITE Operation mode Cooling Heating Inverter Cooling Inverter Cooling Inverter Cooling Heating Inverter Cooling Heating Inverter Cooling Heating Inverter Cooling Capacity Btu h Regular T1 28 000 T3 24 000 T1 28 000 T3 24 000 7200 7200 5000 Mid 3600 3600 2500 Minimum 2100 2100 1500 Power consumption W Regular T1 2 600...

Page 9: ...on Indoor Unit NET mm 360X1948X269 360X1948X269 360X1948X269 360X1948X269 360X1948X269 Outdoor Unit 880 798 310 880 798 310 880 798 310 880 798 310 880 638 310 Indoor Unit GROSS mm 469X2016X469 469X2016X469 469X2016X469 469X2016X469 469X2016X469 Outdoor Unit 1023x888x413 1023x888x413 1038x861x406 1038x861x406 1023x730x413 Weight Indoor Unit NET kg 31 31 31 31 31 Outdoor Unit 53 5 53 5 58 58 45 Ind...

Page 10: ... COLOR TWILIGHTDEEPBRONZE TWILIGHTWHITE TWILIGHTWHITE Operation mode Cooling HeatingInverter Cooling HeatingInverter Cooling HeatingInverter Cooling HeatingInverter Cooling Capacity Btu h Regular T1 28 000 T3 24 000 T1 28 000 T1 8 2kW T3 24 000 T1 28 000 T3 24 000 Mid Minimum Power consump tion W Regular T1 2 600 T3 3 200 T1 2 600 T3 3 200 T1 2 600 T3 3 200 Mid Minimum Operation current A Regular ...

Page 11: ... Weak 250 250 250 Dimension IndoorUnit NET mm 360X1948X269 360X1948X269 360X1948X269 Outdoor Unit 880X950X320 880X950X320 880X950X320 IndoorUnit GROSS mm 469X2016X469 469X2016X469 469X2016X469 Outdoor Unit 1023X1059X420 1023X1059X420 1023X1059X420 Weight IndoorUnit NET kg 31 31 31 Outdoor Unit 62 5 62 5 62 5 IndoorUnit GROSS kg 35 5 35 5 35 5 Outdoor Unit 70 0 70 0 70 0 Harness specifications main...

Page 12: ...erencesinfeatures SMARTSENSOR O SMARTSENSOR O SMARTSENSOR O COLOR TWILIGHTWHITE TWILIGHTWHITE TWILIGHTWHITE Operation mode Cooling HeatingInverter CoolingInverter Cooling HeatingInverter Cooling HeatingInverter Cooling Capacity W Regular T1 8300 T1 7900forCIS T1 7610forChile T1 7200 Power consumption W Regular T1 2625 3 T1 2400 T1 2000 Operation current A Regular T1 12 1 T1 11 6 T1 8 9 T1 T3 H1 CL...

Page 13: ...ion IndoorUnit NET mm 360X1948X269 360X1948X269 360X1948X269 OutdoorUnit 880X798X310 880X950X320 880X950X320 IndoorUnit GROSS mm 469X2016X469 469X2016X469 469X2016X469 OutdoorUnit 1023X888X413 1023X1059X420 1023X1059X420 Weight IndoorUnit NET kg 31 31 31 OutdoorUnit 53 5 62 5 62 5 IndoorUnit GROSS kg 35 5 35 5 35 5 OutdoorUnit 61 5 70 0 70 0 Harness specifications main IndoorUnitMotor DAI30618ZLA ...

Page 14: ...pt SE ASIA 1 DB68 03798A KFR SSL EMS1 DB68 03892A AF28FSSDASSN Except IRAN AF27FSSDAWKNCH For Chile DB68 03857A AF28FSSDAWKNHC For IRAN DB68 03955A AF28FVSDAWKNST For SE ASIA DB68 04033A AF27FSSDAWKNER DB68 04035A DB68 04036A AF24FSSDAWKNEU DB68 04516A AF28FSSDAWKNTK Remote control DB93 11489Z AFSSFSSDASSN 1 DB93 11489Y KFR SSL EMS1 Main power cable 2 5 8 5m DB39 00767A 1 Outdoor Unit Indoor Outdo...

Page 15: ... DB65 10088C 8 Piping tape Color IVORY 80mm X 15m DB69 01194B 2 Insulation Tape 5m DB72 30029A 1 INSULATION TUBE DB72 60033B 1 INSTALL PUTTY DB80 00013A 1 BUSHING PIPE DB81 00422A 1 SLEEVE DB81 01327A 6 Service tube DB81 01328A 6 ASSY HOSE DRAIN DB94 01351F 1 ASSY PIPE 1 4 Φ6 6 L8000 DB96 04578U 1 ASSY PIPE 5 8 Φ16 25 L7900 DB96 04578W 1 Accessories cont ...

Page 16: ...season filter DB91 01473C D E F This is a basic installation at the time of purchase and may be cleaned with water 4 season filter Item Descriptions Code No Remark Dust Filter1 DB63 03415A B This is a basic installation at the time of purchase and may be cleaned with water Dust Filter3 DB63 03425A B Dust Filter ...

Page 17: ...Samsung Electronics 3 1 Necessary Tools 3 Disassembly and Reassembly Item Remarks Screw Driver Screw Driver Long Nose Pliers Monkey Spanner Spanner torque wrench ...

Page 18: ... unit No Parts Procedure Remark 1 Front Please make sure the power is switched off 1 After switching off the Indoor unit operation shut off the main power 2 Ass y Panel Inlet 1 Pull out the upper part of the Ass y Panel Inlet to detach ...

Page 19: ...sembly and Reassembly Samsung Electronics 3 3 No Parts Procedure Remark 2 Unscrew four fastening screws on the left and right of the Ass y Support Inlet 3 Push the Ass y Support Inlet down to disassembly it ...

Page 20: ...g Electronics No Parts Procedure Remark 3 Ass y Cover Main PCB 1 Unscrew three fastening screws on the Cover Main PCB and then lift it up slightly and pull forward to detach 2 Detach the entire housing connected to the Ass y Case Main PCB ...

Page 21: ...Procedure Remark 4 Ass yCoverTop 1 Unscrew the four fastening screws on the top of the Ass y Cover Top 2 Lift the cover ceiling up by gripping its left side 3 Disassemble three connectors Press both hooks at the top of the Ass y Cover detach and then pull it up ...

Page 22: ...Disassembly and Reassembly 3 6 Samsung Electronics No Parts Procedure Remark 5 Ass y Panel Outlet 1 Lift up the Ass y Panel Outlet while hooks are detached and then pull it forward ...

Page 23: ...assembly and Reassembly Samsung Electronics 3 7 No Parts Procedure Remark 6 Ass y Cover Duct 1 Unscrew two fastening screws on the top of the Ass y Cover Duct lift it up and then pull it forward to detach ...

Page 24: ...and Reassembly 3 8 Samsung Electronics No Parts Procedure Remark 7 2 Unscrew three fastening screws on the bottom of the Ass y Duct Fan 3 Lift the Ass y Duct Fan up and pull it forward while the hooks are detached ...

Page 25: ... Electronics 3 9 No Parts Procedure Remark 9 Ass y EVAP UNIT AL 1 Unscrew one fastening screw to detach the Ass y Connector Wire Earth 2 Detach the temperature sensor 3 Unscrew two screws of the ASS Y EVAP and pull it forward to detach ...

Page 26: ...Disassembly and Reassembly 3 10 Samsung Electronics No Parts Procedure Remark ...

Page 27: ...Disassembly and Reassembly Samsung Electronics 3 11 No Parts Procedure Remark 10 Ass y Case Main PCB 1 Unscrew one screw on the bottom of the Ass y Case Main PCB and pull it to detach ...

Page 28: ...bly 3 12 Samsung Electronics No Parts Procedure Remark 11 Ass y CABI Body Up 1 Unscrew four fastening screws at the ASSY CABI BODY UP and the ASSY CABI BODY LOW 2 Push the ASS Y CABI BODY UP toward the rear surface to detach ...

Page 29: ...the FRAME LOW to detach 13 Ass y Frame Grille 1 Unscrew two fastening screws of the Ass y Duct Fan and the Ass y Frame Grille and detach the housing connected with the Motor Fan and the Ass y Connector Wire Motor 2 Press the hooks on the Ass y Frame Grille and then turn counterclockwise to detach 3 Unscrew the fastening screw of the Ass y Fan Mixed Flow to detach ...

Page 30: ...Disassembly and Reassembly 3 14 Samsung Electronics No Parts Procedure Remark 4 Unscrew two fastening screws of the Ass y Frame Grille to detach the Ass y Cover Motor 5 Raise the Motor Fan up to detach ...

Page 31: ...arts Procedure Remark 14 Ass yPanelGrille 1 Detach the lighting connector on the rear of the Ass y Panel Outlet 2 Unscrew twelve fastening screws on the rear of the Ass y Panel Outlet 3 Detach the Ass y Panel Outlet and Ass y Panel Grille hook assembly parts ...

Page 32: ...ssembly 3 16 Samsung Electronics No Parts Procedure Remark 4 Detach the motor wire connector and disconnect the wire from the bearings 5 Unscrew one fastening screw on the rear surface of the Ass y Panel Grille to detach ...

Page 33: ...k 6 While the hooks on the left and the right are slightly lifted turn clockwise and detach the panel frame 7 Unscrew three fastening screws and then detach the cover blade 8 Unhook the transparent molded material visible on the rear surface and detach the Ass y Holder lighting ...

Page 34: ...Disassembly and Reassembly 3 18 Samsung Electronics No Parts Procedure Remark 9 Unscrew four fastening screws of the assembled blade and then detach it 10 Detach Gear Pinion B and the Guide Blade ...

Page 35: ...Disassembly and Reassembly Samsung Electronics 3 19 No Parts Procedure Remark 11 Unscrew two fastening screws of the motor and then detach it ...

Page 36: ... Electronics No Parts Procedure Remark 15 Ass yCoverTop 1 Unscrew two fastening screws of the Cover Display and detach it 2 Detach the display connector from the Main PCB 3 Detach the motor connector at the lower part of the Ass y Cover Top ...

Page 37: ...cs 3 21 No Parts Procedure Remark 4 Unscrew two fastening screws on the left and right 5 Unscrew one fastening screw from the PCB and then detach the Ass y PCB at the cover top 6 Unscrew two fastening screws from the Ass y Gear Rack and detach it ...

Page 38: ...ew from the Ass y Gear Rack and detach the cover rack and the support rack 8 Detach the gear pinion from the motor and unscrew two fastening screws to detach the motor 9 Unhook the left and right of the Panel Display and detach it 10 Unscrew one fastening screw from the Ass y PCB Network and then detach it ...

Page 39: ... 1 After switching off the Indoor unit operation shut off the Main Power 2 Ass y Cabinet Top 1 Unscrew the 9 fastening screws of the Ass y Cabinet Top to detach Use screw driver 3 Ass y Cover Control 1 Unscrew the fastening screw of the Ass y Cover Control to detach Use screw driver ...

Page 40: ...Disassembly and Reassembly 3 24 Samsung Electronics No Parts Procedure Remark 4 Ass y Cabinet Back RH 1 Unscrew the 6 fastening screws of the Ass y Cabinet Back RH to detach Use Screw Driver ...

Page 41: ...lectronics 3 25 No Parts Procedure Remark 5 Ass y Cabinet Front RH 1 Unscrew the fastening screw of the case control out to detach Use Screw Driver 2 Unscrew the 5 fastening screws of the Ass y Cabinet Front RH to detach Use Screw Driver ...

Page 42: ...Disassembly and Reassembly 3 26 Samsung Electronics No Parts Procedure Remark 6 Ass y Cabinet Front LF 1 Unscrew the 11 fastening screws of the Ass y Cabinet Front LF Use Screw Driver ...

Page 43: ... 1 Detach the 4 housings connected to the Ass y Control Out 2 Detach the cables of the Comp and the Solenoid Coil Reactor When detaching the BLDC motor connector from the PBA please do so 30 seconds after removing the power cord Do not detach or insert the Motor connector while power is being supplied to the PBA 3 Unscrew the 2 fastening screws of the Ass y Control Out to detach Use Screw Driver ...

Page 44: ...ws of the Reactor to detach Use Screw Driver 10 Fan Propeller 1 Unscrew the fastening nut of the Fan Propeller to detach Use Monkey Spanner 11 Motor 1 Unscrew the 4 fastening screws of the Motor to detach Use Screw Driver 12 Bracket Motor 1 Unscrew the 3 fastening screws of the Bracket Motor to detach Use Screw Driver ...

Page 45: ... Wire Comp from the Comp Use Monkey Spanner 14 Major Repair Before major repairs please detach after removing the refrigerant inside 1 Detach the suction pipe and the discharge pipe Please detach during major repairs welding points when detaching compressor 2 Detach the ass y cond in out pipe Please detach during major repairs welding points when detaching compressor ...

Page 46: ... 30 Samsung Electronics No Parts Procedure Remark 15 EEV welding point 2 welding points for each EEV 1 Detach the EEV Coil before beginning work 2 Wrap the EEV head with a wet towel to prevent it from heating up EEV COIL EEV Head ...

Page 47: ... button to set it as Each time the button is pressed will be repeatedly selected Set it to Cool by pressing the button SEG3 option set up Press the button to set it as Each time the button is pressed will be repeatedly selected SEG4 option set up Press the button to set it as Each time the button is pressed will be repeatedly selected 5 4 3 2 1 First remove batteries from remote controller Second ...

Page 48: ...n 9 SEG7 option set up Press the button to set it as Each time the button is pressed will be repeatedly selected 10 SEG8 option set up Press the button to set it as Each time the button is pressed will be repeatedly selected 11 Set it to Heat by pressing the button 12 SEG9 option set up Press the button to set it as Each time the button is pressed will be repeatedly selected 13 SEG10 option set up...

Page 49: ...2 After setting up the options code if the product is not operating properly or if the power lamp is blinking check to see if the correct options code for the product model has been set up Option Code by Product Specifications Model Code Color Mode Option Code AF28FVSDADFN Twilight Deep Bronze Cooling Only 20 22 B2 B8 25 AF28FVZDAWKN Twilight White Cooling Only 20 22 B0 B8 25 KFR 72L EMB1 Twilight...

Page 50: ...Indoor unit Communications error between spatial sensor module and Indoor unit Indoor temperature sensor error Indoor EVA In sensor error Indoor EVA Out sensor error Internal fan 1 error Internal fan 2 error Mixed operation error Options error Internal fan 3 error K1 Feedback error IndoorTerminal Block Fuse error 4 2 Error Indicator 4 2 1 Indoor Unit ...

Page 51: ...tion control External Discharge protection control Self diagnosis open EEV Prohibit cooling maneuver Prohibit heating maneuver Problematic Outdoor unit FAN Motor error Problematic compressor maneuver operation error Electric current protection control Outdoor unit OLP protection control Compressor electric current overload error Compressor abnormal error Problematic external controller internal vo...

Page 52: ...f Operation Off Operation Off Page 4 14 Self diagnosis Detached EVA entrance sensor error Check temperature sensor wire Check Main PBA Operation Off Operation Off Operation Off Page 4 19 Self diagnosis Detached EVA exit sensor error Check temperature sensor wire Check Main PBA Operation Off Operation Off Operation Off Page 4 19 Problematic indoor unit upper fan motor Check connectingWIRE Check FAN...

Page 53: ...lf diagnosis Check temperature sensor wire Check Outdoor unit PBA Operation Off Operation Off Operation Off Page 4 23 Temperature delivery sensor error SHORT OPEN Check temperature sensor wire Check Outdoor unit PBA Operation Off Operation Off Operation Off Page 4 24 Temperature delivery sensor error while running self diagnosis Check temperature sensor wire Check Outdoor unit PBA Operation Off Op...

Page 54: ...load Inspect compressor condition Inspect SET installation condition Check temperature sensorWIRE Operation Off Operation Off Operation Off Page 4 26 Problematic compressor incoming electric current Inspect compressor condition Inspect SET installation condition Operation Off Operation Off Operation Off Page 4 29 Problematic compressor operation Inspect compressor condition Inspect SET installatio...

Page 55: ...ion Off Operation Off Page 4 30 AC overvoltage protection Check input voltage Operation Off Operation Off Operation Off Page 4 30 Problematic incoming electric current sensor Replace Outdoor unit PBA Operation Off Operation Off Operation Off Page 4 30 Radiator overheating error Tighten screws Replace Outdoor unit PBA Operation Off Operation Off Operation Off Page 4 33 Refrigerant leakage error Ins...

Page 56: ...edure Replace or tighten communications cable Replace Outdoor unit PBA A new EEPROM IC must be inserted Unplug Indoor unit and Outdoor unit power cords After removing the ass y control out cover plug in the indoor unit and outdoor unit power cords and turn power on Yes No Is there a disconnected or loosely connected communications cable between the Indoor unit and Outdoor unit Is the power of the ...

Page 57: ... Main PBA 3 Faulty Panel PBA 2 Check procedure Replace faulty Panel PBA Re inspect connection of main panel PBA wire Connect Panel PBA and Main PBA Inspect or replace connector wire No Yes Yes No When measuring numbers 2 3 2 4 pin test of Panel PBA CN30 does it fluctuate during communications between DC3V DC5V Is the connection wire between the main Panel PBA disconnected or loosely connected Meas...

Page 58: ...etwork PBA itself 2 Faulty WIRE between indoor camera network and Panel PBA 2 Check procedure Replace faulty Panel PBA Re inspect after power reset Faulty camera network PBA No Yes Yes No Is the voltage between numbers 3 and 4 of cn600 12v Camera network PBA Does the voltage between numbers 3 and 9 and numbers 3 and 10 of cn600 fluctuate between 0v 5v Check communications port ...

Page 59: ... problem occurs even after re soldering the micom pin due to the faulty Main PBA Yes Turn off the main power switch Turn on the main power switch Replace the Main PBA if the same problem occurs even after re soldering the micom pin due to the faulty Main PBA No After assembling The temperature sensor on the PBA Is the voltage of both ends between dc1v dc4v Yes Yes No When measuring the Resistance ...

Page 60: ...ace faulty pipe sensor itselfted Replace the Main PBA if the same problem occurs even after re soldering the micom pin due to the faulty Main PBA Yes Turn on the main power switch Replace the Main PBA if the same Problem occurs even after re soldering the micom pin due to the faulty Main PBA No After assembling the pipe sensor on the PBA is the voltage of both ends between DC1V DC4V Yes Yes No Whe...

Page 61: ...motor connector while being supplied with power 2 Check procedure Check for disconnected fuse FB10 ntc or coil L10 No Yes Inspect or replace wire connected to PBA point of contact disconnection Turn on the main power switch Yes No Is the voltage of 5 3 n L of power PBA cn10 ac187v ac253v Are the voltages on Both ends of power PBA bd200 between ac187v ac253v Measure voltage Measure voltage Replace ...

Page 62: ...otor Is there SHORT from FAN MOTOR WIRE PIN 1 to 6 After reassemble fan motor wire turn on the main power switch Yes Is the voltage of PIN 3 and 1 of power PBA cn40 Dc280v Dc310v No Exchange faulty POWER PBA Yes Is the voltage of PIN 3 and 4 of MAIN PBA cn201 CN200 DC15V 1V No Exchange MAIN PBA Yes Is the voltage of PIN 3 and 5 of MAIN PBA CN200 CN201 CN202 DC2V DC3V No Exchange MAIN PBA No Is the...

Page 63: ...se of malfunction 1 When the operation mode of the problematic Indoor unit does not match that of an Indoor unit already in operation 2 When the indoor period operation mode of multi products do not match each other 2 Check procedure 1 Inspect the operation modes of each Indoor unit 2 Match the Indoor unit operation modes to one another ...

Page 64: ... History mode checking method timer off ok cancel on remote controller 2 Check procedure Are the options set up properly Reconnect wire Replace Main PBA No No No Install the filter properly and fully Replace the high voltage generator itself Yes No Is the filter at the back of the product installed properly Turn the main power switch on Yes Yes Yes Yes Are the options set up properly Is the state ...

Page 65: ...ct indoor unit pipe entrance temperature sensor 2 Inspect indoor unit pipe exit temperature sensor 4 4 9 When Indoor unit Terminal Block Fuse Error Indicated on the Indoor Temperature display area 1 Cause of malfunction 1 Disconnection or loose connection of ERMINAL BLOCK FUSE 2 Disconnection of TERMINAL BLOCK FUSE 3 Faulty Main PBA 2 Check procedure TERMINAL BLOCK needs to be replaced TERMINAL BL...

Page 66: ...e Replace outdoor unit PBA A new EEPROM ic must be inserted After removing the ass y control out cover plug in the power cords for the indoor unit and the outdoor unit and turn power on Check for normal operation and then end No Does the outdoor unit PBA error display match that of e203 Pull out power cords for the indoor unit and the outdoor unit Yes S equipment claims must be made at a service c...

Page 67: ...After detaching the ass y control out cover detach the out disch connector from the PBA Pull out power cords for the indoor unit and the outdoor unit Yes Measure resistance on both ends of out pin using a test device Replace faulty or broken sensor itself No Is the resistance reading in the range of 11kΩ 12kΩ Yes Replace outdoor unit PBA A new EEPROM ic must be inserted S equipment claims must be ...

Page 68: ...e After detaching the ass y control out cover detach the olp cond connector from the PBA Pull out power cords for the Indoor unit and the Outdoor unit Measure resistance on both ends of cond pin using a test device Replace faulty or broken sensor itself No Is the resistance reading in the range of 11kΩ 12kΩ Yes Replace Outdoor unit PBA A new EEPROM IC must be inserted S Equipment claims must be ma...

Page 69: ...E temperature sensor error Outdoor unit display YEL GRN RED 1 Cause of malfunction 1 Sensor detached from sensor holder 2 Sensor detached from outdoor unit PBA connector 3 Faulty sensor itself 4 Problematic outdoor unit PBA 2 Check procedure 1 Checktoseeiftemperaturesensorisattachedproperlytothesensorholder 2 ChecktoseeiftemperaturesensorisconnectedproperlytotheoutdoorunitPBAconnector ...

Page 70: ...re After detaching the ass y control out cover detach the out disch connector from the PBA Pull out power cords for the indoor unit and the outdoor unit Measure resistance on both ends of disch pin using a test device Replace faulty or broken sensor itself No Is the resistance reading in the range of 220kΩ 240kΩ Yes Replace outdoor unit PBA A new EEPROM IC must be inserted S Equipment claims must ...

Page 71: ...ull out power cords for the indoor unit and the outdoor unit After detaching the ass y control out cover detach the olp cond connector from the PBA Yes Measure resistance on both ends of olp pin using a test device Replace faulty or broken sensor itself No Is the resistance reading in the range of 220kΩ 240kΩ Yes Replace outdoor unit PBA A new EEPROM IC must be inserted S Equipment claims must be ...

Page 72: ... GRN RED when E416 1 Cause of malfunction 1 Abnormal refrigerant pressure 2 Problematic pipes 3 Problematic service valve 2 Check procedure 1 Inspect refrigerant pressure 2 Inspect Indoor unit and Outdoor unit pipes 3 Inspect service valve 4 4 18 Self diagnosis EEV related error Indoor unit display Self diagnosis opened EEV error Outdoor unit display YEL GRN RED 1 Cause of malfunction 1 When EEV c...

Page 73: ...neuver error Prohibiting cooling maneuver error Outdoor unit display YEL GRN RED 1 Cause of malfunction 1 Problematic temperature sensor 2 Faulty sensor itself 2 Check procedure 1 Check connection condition of temperature sensor to the outdoor unit PBA 2 Check outside temperature Prohibiting cooling under 5 C prohibiting heating over 30 C ...

Page 74: ... the cause of damage 2 Check procedure No No No Remove foreign substances Replace fan motor Reconnect connector or check for disconnection Yes Yes Pull out power cords for the indoor unit and the outdoor unit Does the fan turn smoothly when doing so by hand Are the fan connector and the PBA connected properly and well Detach ass y control out cover No End Yes Yes Does the same error occur Replace ...

Page 75: ... Problematic Outdoor unit PBA 4 Faulty compressor itself 2 Check procedure Pull out power cords for the Indoor unit and the Outdoor unit No End No Check condition of outdoor unit power connection No Reconnect wire connector or check for disconnection Yes Yes Yes Detach ass y cabinet cover or detach Ass y control out cover Is the connection condition of the compressor wires satisfactory without any...

Page 76: ...e sensor error Problematic radiator temperature sensor error AC overvoltage protection error Problematic external controller incoming current sensor error Outdoor unit display YEL GRN RED when E462 YEL GRN RED when E466 E483 YEL GRN RED when E469 YEL GRN RED when E472 YEL GRN RED when E474 YEL GRN RED when E485 1 Cause of malfunction 1 Abnormal incoming power supply outside of 187 253V 2 Problemat...

Page 77: ...ondition Yes Yes Yes Yes Pull out power cords for the indoor unit and the outdoor unit Replace outdoor unit PBA A new EEPROM ic must be inserted Is the connection condition of the wires to the outdoor unit PBA satisfactory Is the connection condition of the compressor wires to the PBA wires satisfactory Is the connection condition of the wires and the compressor terminal satisfactory Does the same...

Page 78: ...l be loaded according to each code and released as service material The servicing professional will insert the EEPROM ic on location If an ic has already been inserted a replacement will suffice If the same problem still occurs the PBA will be replaced In this case the claimed EEPROM ic must be inserted Because the identical PBA is commonly used in several models EEPROM data is not loaded onto new...

Page 79: ...ck item E458 Yes Yes Pull out power cords for the indoor unit And the outdoor unit Replace ass y control out A new EEPROM ic must be inserted Is the ipm pfcm screw Connection condition satisfactory Is the fan speed satisfactory Detach ass y control out cover After assembling the ass y control out cover plug in the power cords of the indoor unit And outdoor unit and turn power on S Equipment claims...

Page 80: ...igerant leakage error Indoor unit display Outdoor unit display YEL GRN RED 1 Cause of malfunction 1 Faulty tightness of service valve 2 Faulty pipe 2 Check procedure 1 Check tightness of service valve 2 Check whether or not pipe is leaking 3 Replace pipe ...

Page 81: ...or unit terminal block to the outdoor unit PBA point of contact disconnection No Is the voltage of n l of the outdoor unit PBA ac187v 253v Are the voltages on both ends of bd101 between ac187v ac253v Is the voltage of ce001 004 of the outdoor unit PBA electrolytic condenser between c265v dc357v No Replace ptc1 or ntc1 Is the resistance value of ptc001 between 40Ω 24 C Is the resistance value of nt...

Page 82: ...t light Yes Check if batteries have run out No No No After turning off the main power switch Breaker or power outlet wait 10 seconds before turning the power on After verifying the remote controller Batteries to be new use the remote controller To select a random product operation Does the operation run normally Turn off all indoor lamps and use the remote controller to select a random product ope...

Page 83: ...Cause of malfunction 1 Faulty connection or disconnection of Panel touch wire 2 Faulty touch itself 2 Check procedure No Reconnect wire Yes Start Is the connection condition of the Panel board wire number cn20 satisfactory Detach the deck from the door Replace touch board Db93 10995a No ...

Page 84: ...Samsung Electronics 5 1 5 PCB Diagram 5 1 PCB Diagram 5 1 1 Ass y PCB Main IN 4 5 6 7 16 15 8 1 2 3 14 13 12 11 9 10 ...

Page 85: ...V 2 GND 3 PANEL Transmission signal 4 PANEL Reception signal 5 NULL 6 DC 5V 1 DC 12V 2 MOTOR Operation signal 3 MOTOR Operation signal 4 MOTOR Operation signal 5 MOTOROperation signal 1 SPI Control signal 1 2 SPI Control signal 2 3 DC 12V 4 NULL 1 GND 2 K1 MODE 3 K1 FEEDBACK 4 DC 12V 1 Temperature sensing signal 2 GND 3 Temperature sensing signal 4 GND 1 Temperature sensing signal 2 NULL 3 GND 1 R...

Page 86: ... MOTOR Operation signal 9 MOTOR Operation signal 10 MOTOR Operation signal 1 RXD_485 2 TXD_485 3 nTRST 4 TDO 5 TCK 6 TDI 7 TMS 8 TRACE_CLK 9 GND 10 VCC 11 VCC 12 MD0 13 RESET 14 TRACE_3 15 F_SCLK 16 F_SDAT 17 GND 18 TRACE_2 19 TRACE_1 20 TRACE_0 1 Speaker 2 NC 3 Speaker 1 DC 12V 2 PWM0 3 DC 12V 4 PWM1 5 DC 12V 6 PWM2 1 DC 12V 2 GND 3 VCC 4 DISP_TX 5 DISP_RX 6 GBL_RST 7 CAMERA_TX 8 CAMERA_RX CN30 M...

Page 87: ...CB DISPLAY 1 TEST 2 VCC 3 GND 4 RESET 5 P4 1 6 P4 0 1 CAMERA_RX 2 CAMERA_TX 3 DC 12V 4 GND 5 NC CN103 Control PBA Connection 1 DC 12V 2 GND 3 VCC 4 DISP_RX 5 DISP_TX 6 GBL_RST 7 CAMERA_RX 8 CAMERA_TX CN102 Downloading CN12 Network PBA Connection 1 2 3 ...

Page 88: ...onics 5 5 5 1 4 ASS Y PCB POWER 1 AC Power 2 NC 3 AC Power 4 NC 5 GND 1 DC 12V 2 GND 3 DC 5V 4 NC 5 GND 6 BLDC PS 7 GND 8 NC 1 DC 310V 2 NC 3 GND 4 DC 15V 5 BLDC_OVP CN100 AC Power CN200 MAIN PBA Connection CN40 BLDC Power 1 2 3 ...

Page 89: ... 6 Samsung Electronics 5 1 5 ASS Y PCB SUB TOUCH 1 VCC 2 GND 3 Downloading 4 Downloading 5 Downloading 1 VCC 2 TOUCH Transmission signal 3 TOUCH Reception signal 4 GND CN02 Downloading CN01 CONTROL PBA Connection 1 ...

Page 90: ...PCB Diagram Samsung Electronics 5 7 5 1 6 ASS Y PCB SUB LIGHT 1 12V 2 Lighting Control signal CN01 Lighting 1 ...

Page 91: ... USB D Bluetooth Control 5 USB D Bluetooth Control 6 5V 7 NC 8 NC 1 MCU RXD UART Transmission 2 MCU TXD UART Reception 3 12V 4 GND 5 NC 1 GND 2 USB D Wireless LAN Control 3 USB D Wireless LAN Control 4 5V CN5 Bluetooth Module CN1 DISPLAY PBA Connection CN3 Wireless LAN Module 1 3 2 ...

Page 92: ...PCB Diagram Samsung Electronics 5 9 5 1 9 ASS YPCBMAINOUT 8 15 16 17 18 1 2 3 4 5 6 7 9 14 10 13 11 12 ...

Page 93: ...2V 1 DC5V 2 RAC DETECT Signal 3 GND 1 7 7GEG Control Signal 8 KEY 1 Signal 9 KEY 2 Signal 10 KEY 3 Signal 1 KEY Input Signal 2 4 GRID Control Signal RED V phase BLU U phase YEL W phase REACTOR1 REACTOR2 1 4WAY Control Signal 2 Not used 3 NEAUTRAL 1 F1 2 F2 AC POWER CN901 BLDC MOTOR CN502 OUT DISCHRAGE Temperature Sensor CN501 OLP COND Temperature Sensor CN505 EEV_C CN504 EEV_B CN503 EEV_A CN513 RA...

Page 94: ...MEMO Samsung Electronics 5 11 Samsung Electronics ...

Page 95: ...6 1 Samsung Electronics Wiring Diagram Samsung Electronics 6 2 This Document can not be used without Samsung s authorization 6 Wiring Diagram 6 1 All Model Except KFR 50LW EMA1 ...

Page 96: ...6 3 Samsung Electronics Wiring Diagram Samsung Electronics 6 4 6 2 Only KFR 50LW EMA1 Model This Document can not be used without Samsung s authorization ...

Page 97: ... Disp 18 18K BTU H 24 24K BTU H 27 27K BTU H 28 28K BTU H TYPE R RAC F FAC PERFORMANCE 1 S INVERTER H P V INVERTER C O P STANDARD H P C STANDARD C O CAPACITY 2 S Smart Sensor Zero Filter Virus Doctor Z Zero Filter Virus Doctor V Virus Doctor GLADE 1 D DIAMOND S SAPPHIRE G GOLD GLADE 2 VERSION 1 2 A COLOR DF Twilight deep Bronze WK Twilight White DA Earth Brown SET N INDOOR NAME X PUTDOOR NAME SET ...

Page 98: ...7 3 Samsung Electronics 7 2 Refrigerating Cycle Diagram 2 1 F T Condenser Outdoor unit Air flow 4Way valve Sensor EEV Compressor indoor unit heat exchanger ServiceValve ServiceValve ...

Page 99: ... 7 8 7 9 8 0 8 0 8 1 8 1 8 2 8 3 8 3 8 4 8 4 8 5 8 5 8 6 8 6 8 6 8 7 8 7 8 8 25 7 7 7 8 7 9 8 0 8 0 8 1 8 2 8 2 8 3 8 4 8 4 8 5 8 5 8 6 8 6 8 7 8 7 8 8 8 8 8 9 8 9 9 0 26 7 8 7 9 8 0 8 1 8 1 8 2 8 3 8 4 8 4 8 5 8 6 8 6 8 7 8 8 8 8 8 9 8 9 9 0 9 0 9 1 9 1 9 2 27 7 9 8 0 8 1 8 2 8 3 8 4 8 4 8 5 8 6 8 7 8 7 8 8 8 9 8 9 9 0 9 1 9 1 9 2 9 2 9 3 9 3 9 4 28 8 1 8 2 8 3 8 4 8 4 8 5 8 6 8 7 8 7 8 8 8 9 8 9...

Page 100: ...0 2 0 4 0 6 0 8 1 0 0 20 40 60 80 100 Resistance Ω Comp Temperatures C UG8T265FXAEW UG8T265FUAEW BLDC Compressor Comp Temp UG8T265FXAEW UG8T265FUAEW 20 0 39 0 37 30 0 40 0 38 40 0 42 0 4 50 0 43 0 41 60 0 45 0 43 70 0 46 0 44 80 0 48 0 46 90 0 49 0 47 ...

Page 101: ...ble International and or domestic law Samsung Electronics Co Ltd September 2017 Printed in Korea Code No AC 00011E_3 GSPN Global Service Partner Network Area Web Site Eurpoe CIS Mideast Africa gspn1 samsungcsportal com Asia gspn2 samsungcsportal com North Latin America gspn3 samsungcsportal com China china samsungportal com ...

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