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Samsung AC026FB1DEH/EU Service Manual

Manual is about: SYSTEM AIR CONDITIONER

Summary of AC026FB1DEH/EU

  • Page 1

    Refer to the service manual in the gspn(see the rear cover) for the more information. Air conditioner contents system air conditioner 1. Precautions 2. Product specifications 3. Disassembly and reassembly 4. Troubleshooting 5. Pcb diagram 6. Wiring diagram 7. Reference sheet indoor unit outdoor unit...

  • Page 2: Contents

    Contents 1 1. Precautions ........................................................................................................................................ 1-1 1-1 precautions for the service ........................................................................................................

  • Page 3

    4-4 troubleshooting by symptoms ............................................................................................................................... 4-25 4-4-1 communication error .......................................................................................................... 4-...

  • Page 4: 1. Precautions

    Samsung electronics 1-1 1. Precautions 1-1 precautions for the service ●use the standard parts when replacing the electric parts. – confirm the model name, rated voltage, rated current of the electric parts. ●when repairing the equipment, connection of the harness parts must be firm and solid. – a l...

  • Page 5

    1-2 samsung electronics 1-3 precautions related to product safety ●do not pull the power cord and do not touch the power plug or aux power switch with wet hands. – it might cause electric shock or fire. ●a damaged power line or power plug must be replaced to prevent danger. ●do not bend the power ca...

  • Page 6: 2. Product Specifications

    Samsung electronics 2-1 ●built-in cassette type after installed, the air conditioner can be harmonized with a room interior. ●high performance & energy saving with the advanced bldc inverter technology, it makes a room cool with highly energy saving and arises the efficiency of air conditioner. ●lon...

  • Page 7

    2-2 samsung electronics item acn060ndeha/eu rc060dhxea acn071ndeha/eu rc071dhxea image indoor unit outdoor unit remote controller power product 1Φ, 220~240v/50hz 1Φ, 220~240v/50hz indoor l x h x d mm 575*250*575 575*250*575 panel l x h x d mm 670*45*670 670*45*670 outdoor l x h x d mm 798 x 880 x 31...

  • Page 8

    Samsung electronics 2-3 item acn026ndeha/eu rc026dhxea acn035ndeha/eu rc035dhxea acn052ndeha/eu rc052dhxea image indoor unit outdoor unit remote controller power product 1Φ, 220-240v/50hz 1Φ, 220-240v/50hz 1Φ, 220-240v/50hz indoor l x h x d mm 575*250*575 575*250*575 575*250*575 panel l x h x d mm 6...

  • Page 9

    2-4 samsung electronics item acn026ndehh/sa rc026dhxeh/xsa acn035ndehh/sa rc035dhxeh/xsa image indoor unit outdoor unit remote controller power product 1Φ, 220-240v/50hz 1Φ, 220-240v/50hz indoor l x h x d mm 575*250*575 575*250*575 panel l x h x d mm 670*45*670 670*45*670 outdoor l x h x d mm 790*28...

  • Page 10

    Samsung electronics 2-5 item acn052ndehh/sa rc052dhxeh/xsa acn060ndehh/sa rc060dhxeh/xsa image indoor unit outdoor unit remote controller power product 1Φ, 220~240v/50hz 1Φ, 220~240v/50hz indoor l x h x d mm 575*250*575 575*250*575 panel l x h x d mm 670*45*670 670*45*670 outdoor l x h x d mm 798 x ...

  • Page 11

    2-6 samsung electronics item ac060fbndeh/eu ac060fcadeh/eu ac071fbndeh/eu ac071fcadeh/eu image indoor unit outdoor unit remote controller power product 1Φ, 220~240v/50hz 1Φ, 220~240v/50hz indoor l x h x d mm 575*250*575 575*250*575 panel l x h x d mm 670*45*670 670*45*670 outdoor l x h x d mm 798 x ...

  • Page 12

    Samsung electronics 2-7 item ac026fbndeh/eu ac026fcadeh/eu ac035fbndeh/eu ac035fcadeh/eu ac052fbndeh/eu ac052fcadeh/eu image indoor unit outdoor unit remote controller power product 1Φ, 220-240v/50hz 1Φ, 220-240v/50hz 1Φ, 220-240v/50hz indoor l x h x d mm 575*250*575 575*250*575 575*250*575 panel l ...

  • Page 13

    2-8 samsung electronics item ns0261dxea rc026dhxea ns0351dxea rc035dhxea image indoor unit outdoor unit remote controller power product 1Φ, 220~240v/50hz 1Φ, 220~240v/50hz indoor l x h x d mm 975*135*410 975*135*410 panel l x h x d mm 1180*25*460 1180*25*460 outdoor l x h x d mm 790*285*545 790*285*...

  • Page 14

    Samsung electronics 2-9 item ac026fb1deh/eu ac026fcadeh/eu ac035fb1deh/eu ac035fcadeh/eu image indoor unit outdoor unit remote controller power product 1Φ, 220-240v/50hz 1Φ, 220-240v/50hz indoor l x h x d mm 575*250*575 575*250*575 panel l x h x d mm 670*45*670 670*45*670 outdoor l x h x d mm 790*28...

  • Page 15

    2-10 samsung electronics item description code no. Q’ty remark ass'y drain hose db94-03287a 1 essential offer (indoor unit) cable-tie db65-10088c 6 seal-drain ass'y db62-11028a 1 seal-drain ass'y db62-11028h 1 seal-drain ass'y db62-11028j 1 assy install manual/user manual db98-34365a& db98-34366a(fo...

  • Page 16

    Samsung electronics 2-11 item descriptions code-no. Q'ty remark wireless remote controller db93-11115n 1 optional batteries for remote controller (specification: "aaa" type) db47-90024a 2 remote controller holder db61-04899a 1 m4×16 screw 6002-000581 2 user’s manual db98-33129a 1 accessories (cont.)...

  • Page 17

    2-12 samsung electronics accessories (cont.) slim 1 way item descriptions code-no. Q'ty remark pattern sheet db69-01936a 1 essential offer (indoor unit) db69-01947a 1 db69-01947b 1 seal-drain ass'y db62-05810a 1 insulation-base db72-00401c 2 grommet hanger db63-00237a 8 cable tie db65-10088c 3 ass'y...

  • Page 18

    Samsung electronics 2-13 accessories (cont.) wired remote controller (mwr-we10) [code no. : db97-17002b] item descriptions code-no. Q'ty remark wired remote controller db93-11251b 1 optional cable tie db65-10088b 2 cable clamp db65-10074e 3 m4×16 screw 6002-000474 5 user’s manual db98-32810a 1 insta...

  • Page 19

    2-14 samsung electronics accessories (cont.) 䒲 central controller (mcm-a202d) [code no. : db97-18602b] item descriptions code-no. Q'ty remark central controller db93-03425n 1 optional cable tie db65-10088b 2 cable clamp db65-10074e 5 m4 x 16 screw 6002-000474 7 user’s manual db98-33437a 1 installati...

  • Page 20

    Samsung electronics 2-15 accessories (cont.) 䒲 function controller (mcm-a100) [code no. : db97-01077a] item descriptions code-no. Q'ty remark function controller db93-00757g 1 optional cable tie db65-10088b 2 cable clamp db65-10074e 6 m4×16 screw 6002-000474 7 user’s manual db98-27317a 1 installatio...

  • Page 21

    2-16 samsung electronics accessories (cont.) 䒲 relay (mim-b13d) [code no. : db97-18519a] 䒲 relay (mim-b13e) [code no. : db97-04416j) item descriptions code-no. Q'ty remark relay db93-12203a 1 optional relay power cable (300mm) db39-00378b 1 relay communication cable (300mm) db39-00253b 1 item descri...

  • Page 22

    Samsung electronics 2-17 filter accessory item descriptions code-no. Remark dust filter db63-02739a basic/ water wash.

  • Page 23

    Samsung electronics 3-1 item remarks +screw driver adjustable wrench (8mm, 10mm, 13mm) m6, m8 hex wrench 䒲 necessary tools 3. Disassembly and reassembly.

  • Page 24

    3-2 samsung electronics no parts procedure remark 1 panel 1) pull both hooks and take the grille downward. Two safety clips are mounted to the front grille to prevent it from dropping. 2) detach the safity clip and take up the grille. 3) remove the 2 fixed screws to remove the control-box cover. (us...

  • Page 25

    Samsung electronics 3-3 no parts procedure remark 6) disassemble the bolts that are assembled with the indoor unit at the 4 panel corners. 7) press the hangers at both sides of the panel inwards, to remove it from the indoor unit’s hook. Remove the panel from the indoor unit. 2 control-box 1) discon...

  • Page 26

    3-4 samsung electronics no parts procedure remark 3 bell-mouth 1) unscrew the screw fixed on the bell-mouth. (use +screw driver) 2) push the bell-mouth in the direction opposite to where it’s installed on the control-box to remove it. 4 drain pan 1) unscrew the screws on the 4 corners of the indoor ...

  • Page 27

    Samsung electronics 3-5 no parts procedure remark 5 drain pump & hose 1) remove the 2 fixed screws and disconnect the white drainage hose from the drain pump. (use +screw driver) 2) remove the 2 screws and take the drain-hose out from the indoor unit to disassemble the transparent drain-hose fixed o...

  • Page 28

    3-6 samsung electronics no parts procedure remark 7 fan & motor 1) turn the hexangular nut attached to the top of the fan counterclockwise to remove it. Take the fan out of the motor. 2) turn the three hexangular nuts on the motor counterclockwise to remove the nuts. Take the motor wires attached to...

  • Page 29

    Samsung electronics 3-7 no parts procedure remark 3) remove the screw of the cover pipe that is used to fix the in/out pipe. Remove the in/out pipe. (use +screw driver) 4) remove the heat exchanger from the indoor unit’s cabinet..

  • Page 30

    3-8 samsung electronics no parts procedure remark 1 panel & filter(a type) 1) press the push button on the grille to open. 2) separate 1 clip from the panel then tilt the grille 45° to remove grille from the panel. 3) separate filter from the panel. 4) separate 3 cover screws from it. 5) undo 6 fixe...

  • Page 31

    Samsung electronics 3-9 no parts procedure remark panel & filter(a type) 6) press the left and right hooks on the panel to separate panel from the indoor unit. Panel & filter (b type) 1) press the [filter reset] button on the wireless remote controller once. It will make an induction panel that is s...

  • Page 32

    3-10 samsung electronics no parts procedure remark 4) remove the induction filter. (2ea) 5) remove the filter guide. (2ea) 6) remove the 3 screws covers. 7) remove 4 connecting wires for the panel and undo the 7 screws that fix the panel. (use + screw driver.) 8) after pulling out 2 panel fixing hoo...

  • Page 33

    Samsung electronics 3-11 no parts procedure remark 2 drain pan 1) separate 5 fixing screws in the drain pan. (use +screw driver.) 2) pull the drain pan to separate it from the indoor unit. When separating the pan please be careful not to touch the board of heat exchanger. 3 control in 1) undo 3 fixi...

  • Page 34

    3-12 samsung electronics no parts procedure remark 2) separate 8 connecters on the pcb of the indoor unit. 3) separate the control in from the indoor unit. 4 drain sub 1) push the hook on the drain sub to separate it..

  • Page 35

    Samsung electronics 3-13 no parts procedure remark 5 heat exchanger 1) undo fixing screw in the heat exchanger. (use +screw driver.) 2) separate the indoor unit’s sensor from the heat exchanger. 3) separate the heat exchanger from the indoor unit. 6 cross fan 1) undo 3 fixing screws on the cover fan...

  • Page 36

    3-14 samsung electronics no parts procedure remark 3) separate the cross fan from the indoor unit. 7 drain pump 1) separate fixing screw in the cover drain pump. (use +screw driver.) 2) separate the drain hose from the drain pump. 3) separate the drain pump from the indoor unit..

  • Page 37

    Samsung electronics 3-15 3-2 outdoor unit 䒲 rc060dhxea / rc071dhxea / rc052dhxeh / rc060dhxeh/ ac060fcadeh/ ac071fcadeh no parts procedure remark 1 common work 1) loosen 1 fixing screw of the cover-control and detach the cover control. 2) loosen each 7 fixing screws and detach the cabinet upper..

  • Page 38

    3-16 samsung electronics no parts procedure remark 3) loosen 2 screws fixed to assemble control box with cabinet-side rh. 4) loosen fixing screws and detach the cabinet-side rh. 5) loosen 2 screws fixed on the guide condenser..

  • Page 39

    Samsung electronics 3-17 no parts procedure remark 6) loosen fixing screws of the cabinet front..

  • Page 40

    3-18 samsung electronics no parts procedure remark 2 fan & motor 1) detach the nut flange like the picture on the right side. (turn counter clockwise because the screw is right-handed.) 2) detach the fan propeller. 3) loosen 4 fixing screws to detach the motor. 4) disconnect the wire between ass'y c...

  • Page 41

    Samsung electronics 3-19 no parts procedure remark 3 ass'y control out 1) detach several connectors from the ass'y control out. 2) detach several connectors from the pcb of ass'y control out. 3) pull up the ass'y control out. 4 heat exchanger 1) release the refrigerant at first. 2) loosen fixing scr...

  • Page 42

    3-20 samsung electronics no parts procedure remark 5 compressor 1) loosen the fixing nut and detach the compressor lead wire. 2) disassemble the felt compressor sound. 3) loosen the 3 bolts at the bottom of compressor like the picture on the right side..

  • Page 43

    Samsung electronics 3-21 䒲 rc026dhxea/ rc035dhxea/ rc052dhxea/ rc026dhxeh / rc035dhxeh/ ac026fcadeh ac035fcadeh/ ac052fcadeh no parts 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 th...

  • Page 44

    3-22 samsung electronics 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 45

    Samsung electronics 3-23 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 46

    3-24 samsung electronics no parts procedure remark 3 assy control out 1) lossen fixing 1 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) disaessem...

  • Page 47

    Samsung electronics 3-25 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 48: 4. Troubleshooting

    4-1 samsung electronics 4. Troubleshooting 4-1 setting an indoor unit address and installation option 4-1-1 the procedure of setting option high temp button high fan button mode change low temp button low fan button entering mode for setting option option setting mode ▶ set the indoor unit address a...

  • Page 49

    Samsung electronics 4-2 4-1-2 the procedure of setting option option setting status 1. Setting seg2, seg3 option press low fan button( ∨ ) to enter seg2 value. Press high fan button( ∧ ) to enter seg3 value. Each time you press the button, ⋯ will be selected in rotation. 2. Setting cool mode press m...

  • Page 50

    4-3 samsung electronics the procedure of setting option (cont.) option setting status 12. Setting cool mode press mode button to be change to cool mode in the off status. 13. Setting seg16, seg17 option press low fan button( ∨ ) to enter seg16 value. Press high fan button( ∧ ) to enter seg17 value. ...

  • Page 51

    Samsung electronics 4-4 1. Check whether power is supplied or not. - when the indoor unit is not plugged in, there should be additional power supply in the indoor unit. 2. The panel(display ) should be connected to an indoor unit to receive option. 3. Before installing the indoor unit, assign an add...

  • Page 52

    4-5 samsung electronics 1. Check whether power is supplied or not. - when the indoor unit is not plugged in, there should be additional power supply in the indoor unit. 2. The panel(display ) should be connected to an indoor unit to receive option. 3. Set the installation option according to the ins...

  • Page 53

    Samsung electronics 4-6 option seg19 seg20 seg21 seg22 seg23 seg24 explanation page individual control of a remote controller heating setting compensation reserved motion detect sensor reserved indication and details indication details indication details 0 disuse indication details 3 0 or 1 indoor 1...

  • Page 54

    4-7 samsung electronics you can change each digit of set option. Option seg1 seg2 seg3 seg4 seg5 seg6 explanation page mode the option mode you want to change the tens’ digit of an option seg you will change the unit digit of an option seg you will change the changed value indication and details ind...

  • Page 55

    Samsung electronics 4-8 4-1-6 option code for each model model option code acn026ndeha/eu 015077-1660f8-271a21-370000 acn035ndeha/eu 015077-166219-272328-370000 acn052ndeha/eu 015077-17625d-273437-370040 acn060ndeha/eu 015077-18626e-273c46-370040 acn071ndeha/eu 015077-156391-274750-370040 acn026ndeh...

  • Page 56

    Error mode cause measures product operation with error diagnosis method operation defrost timer filter outdoor unit compressor outdoor unit fan indoor unitheat fan x x x power reset - operation-off operation-off operation-off - x x x error of room temperature sensor in the indoor unit (open/short) t...

  • Page 57

    4-12 samsung electronics 4-2-2 test run mode and view mode 䒲 display option key key key operation 7-segment display k1 press once : heating test run “ [comparison of weights with other companie hauzen other companies weight 20kg 17kg 35% 29kg ” “ ” “blank” “blank” press twice : defrost test run “ [c...

  • Page 58

    Samsung electronics 4-13 4-2-3 eco mode(power save) mode display eco mode lamp segment 1 segment 2 segment 3 segment 4 red color eco mode “blank” “blank” “blank” “blank” on exit eco mode press k3 to exit off eco mode lamp : red.

  • Page 59

    4-14 samsung electronics 4-2-4 1 way cassette type 㽞 error detection and reoperation 1. If an error occurs during operation, the led flashes to indicate that there is a problem then all operations stop except led. 2. When resuming operation with remote controller and switch, it determines error mode...

  • Page 60

    Samsung electronics 4-15 error led lamp display cause actions to take operation defrost 䢻 x 䢻 䢻 x • eeprom part defect • eeprom circuit defect • check non-delivery/cool delivery/non-insertion of ic51 part pin. • check non-delivery/cool delivery/non-insertion of ic51 peripheral circuit components. 䢻 ...

  • Page 61

    4-16 samsung electronics 4-2-5 troubleshooting for outdoor unit if an error occurs during the operation, it is displayed on the outdoor unit pcb led, both main pcb and inverter pcb. No. Error code meaning remarks 1 e201 unit quantity miss matching between indoor and outdoor. Check indoor quantity se...

  • Page 62

    Samsung electronics 4-17 4-2-6 wired remote controller - if an error occurs, ( ) icon will be displayed on the wired remote controller. - press the test button to see the error code. Error mode contents measure product operation in error condition error type outdoor unit/ compressor/indoor unit indo...

  • Page 63

    4-18 samsung electronics wired remote controller (cont.) error mode contents measure product operation in error condition error type outdoor unit/ compressor/indoor unit [inverter] ipm over current error check coolant charging check the compressor connection status and normal operation check the obs...

  • Page 64

    Samsung electronics 4-19 indoor unit display 4way x (operation) (defrost) x (timer) x (filter) 1way x (operation) x (defrost) (reservation) x (fan) x (filter) symptom in case of open or short circuit of indoor temperature sensor failure short or leakage of the corresponding sensor yes no no in this ...

  • Page 65

    4-20 samsung electronics yes no no in this case, is the resistance value out of range in the temperature table on the right? Yes is the indoor heat exchanger temperature sensor connector disconnected from the pcb? Restart the system after replacing the pcb restart the system after connecting the con...

  • Page 66

    Samsung electronics 4-21 indoor unit display 4way x (operation) x (defrost) (timer) x (filter) 1way x (operation) x (defrost) x (reservation) (fan) x (filter) symptom indoor unit fan does not run /runs at excessive high speed and stops failure check if the motor connector is disconnected/ check the ...

  • Page 67

    4-22 samsung electronics indoor unit display 4way x (operation) (defrost) (timer) x (filter) 1way x (operation) x (defrost) (reservation) (fan) x (filter) symptom communication error between the indoor and outdoor unit for two minutes failure communication error between the indoor unit and outdoor u...

  • Page 68

    Samsung electronics 4-23 indoor unit display 4way x (operation) x (defrost) (timer) (filter) 1way x (operation) x (defrost) x (reservation) (fan) (filter) symptom the indoor unit floating sensor is open and that state is maintained for more than one minute. Failure increase in the drain pan water le...

  • Page 69

    Samsung electronics 4-24 restart the unit after replacing the pcb indoor unit display 4way (operation) (defrost) (timer) x (filter) 1way (operation) x (defrost) (reservation) (fan) x (filter) symptom eeprom circuit failure failure eeprom component failure, eeprom circuit parts missing/damaged/solder...

  • Page 70

    Samsung electronics 4-25 4-3-7 outdoor unit is not powered on – initial diagnosis 1. Check items 1) is the power supply voltage 220v? 2) is the ac power connected correctly? 3) are the leds in the main pcb and inverter pcb of the outdoor unit on? 4) is the input power voltage of the indoor unit 220v...

  • Page 71

    4-26 samsung electronics yes outdoor unit is not powered on – initial diagnosis (cont.) yes connect the reactor no is the reactor connector connected correctly? Replace the pba. Cont..

  • Page 72

    Samsung electronics 4-27 4-4-1 communication error 1. 1.Checklist : 1) is the cable between the indoor unit and outdoor unit connected correctly? 2) isn't the power cable and communication cable cross? 2. Troubleshooting procedure yes restart after power off. Terminate the service exchange the indoo...

  • Page 73

    4-28 samsung electronics 4-4-2 outdoor temperature sensor error 1. 1.Checklist : 1) is the cable between the indoor unit and outdoor unit connected correctly? 2) is the sensor placed correctly? 3) does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) is the...

  • Page 74

    Samsung electronics 4-29 4-4-2-2. Troubleshooting procedure (pf3) yes reconnect the sensor connector. Micom error or connector check no is the sensor resistance value #1-#2 10kohm±3% at the room temperature of 25°c is the sensor connector(cn502) connected correctly in accordance with a colorred,4pin...

  • Page 75

    4-30 samsung electronics 4-4-3 outdoor coil temperature sensor error 1.Checklist : 1) is the sensor connected correctly? 2) is the sensor placed correctly? 3) does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) is the resistance value of sensor connection...

  • Page 76

    Samsung electronics 4-31 4-4-3-2. Troubleshooting procedure (pf3) yes reconnect the sensor connector. Micom error or connector check no is the sensor resistance value #3-#4 (cn501) 10kohm±3% at the room temperature of 25 25°c is the sensor connector(cn501) connected correctly in accordance with a co...

  • Page 77

    4-32 samsung electronics 4-4-4 outdoor discharge temperature sensor error 1.Checklist : 1) is the sensor connected correctly? 2) is the sensor placed correctly? 3) does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) is the resistance value of sensor conne...

  • Page 78

    Samsung electronics 4-33 sensor replace sensor resistance value : 20°c - 242kohm 30°c - 166ohm 35°c - 138ohm 40°c - 115kohm 4-4-4-2. Troubleshooting procedure (pf3) yes reconnect the sensor connector. Micom error or connector check no is the sensor resistance value #3-#4 (cn501) 10kohm±3% at the roo...

  • Page 79

    4-34 samsung electronics 4-4-5 outdoor discharge over temperature error 1.Checklist : 1) check the discharge temperature in the outdoor unit 2) check the compressor locking or gas leak 3) 3) download the eeprom data 2. Troubleshooting procedure yes yes terminate the service exchange the outdoor pba ...

  • Page 80

    Samsung electronics 4-35 4-4-6 outdoor fan motor error 1.Checklist : 1) are the input power voltage and the power connection correct? 2) is the motor wire connected to the outdoor pba correctly? 3) is there no assembly error or none-assembly in the terminal of motor wire connector? 4) is there no ob...

  • Page 81

    4-36 samsung electronics 4-4-7 compressor starting error 1.Checklist : 1) is the connection of cable for the compressor? 2) is the compressor wire is connected clockwise? U(red)-v(blu)-w(yel) 3) is the interphase resistance of compressor normal? 2. Troubleshooting procedure terminate the service dow...

  • Page 82

    Samsung electronics 4-37 4-4-8 compressor wire missing error/rotation error 1.Checklist : 1) is the connection of cable for the compressor? 2) is the compressor wire is connected clockwise? U(red)-v(blu)-w(yel) 3) is the interphase resistance of compressor normal? 2. Troubleshooting procedure termin...

  • Page 83

    4-38 samsung electronics 4-4-9 o.C(over current) error 1.Checklist : 1) is the ipm shunt(pf2:r451,r452,r453,pf3:r413,r414,r415) resistance value correct? Check the resistor is opened 2) is the condition of surrounding temperature abnormal overload? 3) is there any problem as like the temperature sen...

  • Page 84

    Samsung electronics 4-39 4-4-10 dc_link voltage sensor error 1.Checklist : 1) is the input voltage of outdoor terminal block is normal? 2) is the reactor wire connected? 3) is the dc_link capacitor(pf2:ce101,ce102,ce103,pf3:ce001,ce002,ce003,ce004)) assembled in accordance the specification? (outdoo...

  • Page 85

    4-40 samsung electronics 4-4-10 dc_link voltage sensor error 1.Checklist : 1) is the input voltage of outdoor terminal block is normal? 2) is the reactor wire connected? 3) is the dc_link capacitor(pf2:ce101,ce102,ce103,pf3:ce001,ce002,ce003,ce004)) assembled in accordance the specification? (outdoo...

  • Page 86

    Samsung electronics 4-41 4-4-11 dc_link voltage under/over error, over voltage protection error/pfc over load 1.Checklist : 1) is the input voltage of outdoor terminal block is normal? 2) is the reactor wire connected? 3) is the reactor wire connected? 4) is the dc_link capacitor(pf2:ce101,ce102,ce1...

  • Page 87

    4-42 samsung electronics 4-4-12 dc_link voltage sensor error 1.Checklist : 1) is the pfc shunt(pf2:r062,r063,pf3:r807,r808,r809) resistance value correct? Check the resistor is opened 2) is the condition of surrounding temperature abnormal overload? 3) is there any problem as like the temperature se...

  • Page 88

    Samsung electronics 4-43 4-4-13 current sensor error/input current sensor error 1.Checklist : 1) is the pfc shunt(pf2:r062,r063,pf3:r807,r808,r809) resistance value correct? Check the resistor is opened 2) is the ipm shunt(pf2:r451,r452,r453,pf23:r413,r414,r415) resistance value correct? Check the r...

  • Page 89

    4-44 samsung electronics 4-4-14 heatsink sensor error/heatsink over heat 1.Checklist : 1) are there screws assembly in pba-heatsink? 2) is the gap pba-heatsink 3) is the fan operation normal? 4) is the cover assembly in conrol-box normal? 2. Troubleshooting procedure fastening the screw no are there...

  • Page 90

    Samsung electronics 4-45 4-4-15 comp vlimit error/comp current limit error 1.Checklist : 1) is the pfc shunt(pf2:r062,r063,pf3:r807,r808,r809) resistance value correct? Check the resistor is opened 2) is the condition of surrounding temperature abnormal overload? 3) is there any problem as like the ...

  • Page 91

    4-46 samsung electronics 4-4-16 eeprom error/otp error 1.Checklist : 1) is there a short around micom? 2) is there a short around ic202(pf2) or ic701(pf3)? 3) did you download or insert eeprom ic, after changing outdoor pba? 2. Troubleshooting procedure terminate the service no restart after power o...

  • Page 92

    Samsung electronics 4-47 4-4-17 ac zero cross signal error 1.Checklist : 1) check the power condition at customer's house (is there any power noise?) 2) have been there power failure? 2. Troubleshooting procedure terminate the service no is the ac line zero cross signal error appeared again? Exchang...

  • Page 93

    4-48 samsung electronics 4-4-18 operation condition secession error 1.Checklist : 1) check the temperature around the outdoor unit. 2. Troubleshooting procedure terminate the service no is the operation condition secession error appeared again? * heating mode * is the outdoor temperature over 40°c o...

  • Page 94

    Samsung electronics 4-49 4-4-19 capacity miss match error 1.Checklist : 1) check the btu between indoor and outdoor unit 2) check the indoor unit option and outdoor unit eeprom data 2. Troubleshooting procedure exchange the one of them according to the exact model spec terminate the service terminat...

  • Page 95

    4-50 samsung electronics 4-4-20 gas leak error 1.Checklist : 1) is the position of indoor eva_in sensor normal? 2) check the pipe crack 3) check the eev valve connection in outdoor unit 4) check the refrigerant was charged 2. Troubleshooting procedure indoor sensor take the normal position check the...

  • Page 96

    Samsung electronics 4-51 4-4-21 mds error flow chart no no no no no mds function on check is seg23 set to “0” in option code check the wire connection check the mds kit check the main pba mds has no problem does any error message pop up ? Set seg23 to 1~8 digit -replace wire of mds -connect wire of ...

  • Page 97: 5. Pcb Diagram

    5-1 samsung electronics main power input float switch bldc fan earth wire ① 1(l):phase l 2(n):phase n ② #1:dc310v #2:not used #3:agnd #4:dc15v #5:fan rpm #6:rpm feedback ③ #1:gnd ④ #1:float_sw #2:gnd ⑤ #1:eva in temperature sensor #2,4,6:gnd #3:eva out temperature sensor #5:eva discharge ⑥ #1:room t...

  • Page 98

    Samsung electronics 5-2 ① #1 : dc 12v #2~5 : led control signal #6 : remocon signal out #7~8 : not used #9 : remocon signal in #10: gnd #11: dc 5v cn01-display 5-1-2 panel pcb 1.

  • Page 99

    Operating instructions and installation 5-3 samsung electronics ① #1~5 : led control signal #7 : remocon signal #8 : gnd #9 : vcc cn01-display 5-1-3 1way dip 1.

  • Page 100

    Samsung electronics 5-4 ① #1~5 : led control signal #7 : remocon signal #8 : gnd #9 : vcc cn01-display 5-1-4 1way smd 1.

  • Page 101

    Operating instructions and installation 5-5 samsung electronics 5-1-5 outdoor unit pcb 㽞 main pcb (rc060dhxea / rc071dhxea/rc052dhxeh/rc060dhxeh/ ac060fcadeh/ ac071fcadeh) ① olp /cond thermistor connector smaw250a-04 wht ② out/discharge thermistor connector smaw250a-04 re ③ bldc-fan connetcor yan396...

  • Page 102

    Samsung electronics 5-6 outdoor unit pcb (cont.) 㽞 main pcb (rc026dhxea / rc035dhxea / rc052dhxea/ rc026dhxeh / rc035dhxeh/ ac026fcadeh/ ac035fcadeh/ ac052fcadeh) 4 5 1 13 12 7 9 10 11 8 6 2 3 ① 4way connector ② main-sub connector ③ 485 communication connector ④ olp thermistor connector ⑤ s-net conn...

  • Page 103

    Operating instructions and installation 5-7 samsung electronics outdoor unit pcb (cont.) 㽞 sub pcb (rc060dhxea / rc071dhxea/rc052dhxeh / rc060dhxeh/ ac060fcadeh/ ac071fcadeh) ① 12v power connector yw396-02v blu ② main -sub signal connectot smw250-04 wht ③ main -sub signal connectot smw200-15ntr 1 2 ...

  • Page 104

    Samsung electronics 5-8 outdoor unit pcb (cont.) 㽞 sub pcb (rc026dhxea / rc035dhxea / rc052dhxea/ rc026dhxeh / rc035dhxeh/ac026fcadeh/ ac035fcadeh/ ac052fcadeh) ① evap thermistor connector smw250-08 wht ② eev-b connector smw250-05 yel ③ display-main connector smw200-28 wht ④ 12v power connector yw39...

  • Page 105

    Operating instructions and installation 5-9 samsung electronics mds-kit pcb- (cont.) 㽞 pcb (mds-kit) 1 2 ① cn301 ‒ uart communication / dc12v power #1 : dc12v #2 : rxd #3 : txd #4 : not used #5 : gnd ② cn201 ‒ download #1 : dc5v #2 : gnd #3 : download #4 : reset.

  • Page 106: 6. Wiring Diagram

    Samsung electronics 6-1 6. Wiring diagram 6-1 indoor unit this document can not be used without samsung’s authorization..

  • Page 107

    Operating instructions and installation 6-2 samsung electronics 㽞outdoor unit : rc026dhxea/ rc035dhxea/ rc052dhxea/ rc026dhxeh/ rc035dhxeh/ac026fcadeh/ ac035fcadeh/ ac052fcadeh) 6-2 outdoor unit this document can not be used without samsung’s authorization..

  • Page 108

    Samsung electronics 6-3 this document can not be used without samsung’s authorization. 㽞outdoor unit : rc060dhxea/ rc071dhxea/ rc052dhxeh/ rc060dhxeh/ ac060fcadeh/ ac071fcadeh.

  • Page 109: . Reference Sheet

    -1 samsung electronics model code h h h e h a h eu h / h 026 h n h ad h n h d . Reference sheet -1 index for model name -1-1 indoor unit product type code type ac cac (usd) ad dvm aj pma ae ehs am asd(air side unit) av vtl ak pak (packaged system) az chr product type code type s set n indoor x outdo...

  • Page 110

    Samsung electronics -2 index for model name (cont.) model code h x h h h e h a h ser h / h 052 h rc h d h -1-2 outdoor unit ※ ★ mcd: dummy mock-up model ※ “/” can be removed from the buyer card if there are not enough digits. ★ buyer name product type n c single (cac) capacity (3 digit) hp / kw / bt...

  • Page 111

    -3 samsung electronics index for model name (cont.) model code -1-3 panel ※ model name for the column/bundle packaging is “~s”. ★ only display the global 4 way with korean/ english k separator. H m h s h a h c h p h 4s h u product design classification p panel product type c cst product classificati...

  • Page 112

    Samsung electronics -4 model code h d h n h e h eu h / h 026 h h h ac h f h b -1-4 13year new index for model code (indoor and outdoor) product type code type am dvm aj pma ac cac (usd) / asd ae ehs an vtl ak pak (packaged system) ag chr product type code type e 2012 f 2013 g 2014 h 2015 i 2016 j 20...

  • Page 113

    -5 samsung electronics 㽞 condenser high temperature and high pressure gas state coolant discharged from the compressor is converted to a liquid state as it is cooled down by the heat emission in the outdoor condenser unit, and sent to the evaporator. 㽞 compressor low temperature and low pressure coo...

  • Page 114

    Samsung electronics -6 -3 pressure graph - 32/2 3 27/1 - 32/23 27/19 21/15 outdoor temp.(°c) cooling pressure(kgf/cm²g) 6 cooling 32/23 27/19 21/15 50 12.0 11.1 9.7 35 9.5 8.8 7.7 20 11.4 10.6 9.2 7 9.6 8.9 7.7 -5 7.8 7.2 6.3 indoor (°c) outdoor(°c) 5 0 10.0 15.0 20.0 0.0 5.0 10.0 15.0 20.0 -20 -10 ...

  • Page 115

    This service 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. June. 2013. Printed in china. Code no. Ac-00038e_1 gspn (global service partner network) area web site...