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Samsung AC026MN1DKH, Service Manual

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Samsung AC026MN1DKH Service Manual Download Page 25

3-12

Samsung Electronics

No

Parts

Procedure

Remark

6

DRAIN SUB

1)   Unscrew a drain sub fixing screw. 

(use +screw driver)

2)  Hold hook of drain sub and detach it.

7

HEAT EXCHANGER

1)   Unscrew 1 fixing screws of heat exchanger. 

 (use +screw driver)

2)   Detach indoor unit sensor from heat  

 exchanger.

3)   Detach EEV connector from PCB.

Summary of Contents for AC026MN1DKH

Page 1: ...JB1DEC AC036JCADEC AC052JB1DEC AC052JCADEC AC071JB1DEC AC071JCADEC AC026MN1DKH AC035MN1DKH Model Code AC036JB1DEC TL AC036JCADEC TL AC052JB1DEC TL AC052JCADEC TL AC071JB1DEC TL AC071JCADEC TL AC026MN1DKH TK AC035MN1DKH TK AC026MN1DKH EU AC035MN1DKH EU AC036JB1DEC TL AC026MN1DKH TK AC035MN1DKH TK AC026MN1DKH EU AC035MN1DKH EU AC036JCADEC TL AC052JCADEC TL AC052JB1DEC TL AC071JB1DEC TL AC071JCADEC T...

Page 2: ...The procedure of setting option 4 2 4 1 3 Order for Setting Options 4 5 4 1 4 Setting an indoor unit installation option 4 6 4 1 5 Changing a particular option 4 8 4 1 6 Option code for each model 4 9 4 2 Items to check before diagnostics 4 10 4 2 1 Test run mode and View mode 4 10 4 2 2 Troubleshooting for indoor unit 4 11 4 2 3 Changing a particular option 4 14 4 2 4 Option code for each model 4...

Page 3: ...29 4 4 4 Communication error after finishing Tracking E202 4 30 4 4 5 Indoor unit float sensor error E153 4 31 4 4 6 EEPROM circuit failure E162 4 32 4 4 7 Thermal Fuse Open Error 4 33 1 5 PCB Diagram and Parts List 5 1 5 1 Indoor Unit 5 1 5 1 1 Indoor Unit 5 1 5 1 2 Panel PCB 5 2 5 2 Outdoor Unit 5 6 6 Reference Sheet 6 1 6 1 Index for Model Name 6 1 6 2 Refrigerating Cycle Diagramc 6 4 ...

Page 4: ...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 5: ...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 6: ...ology it makes a room cool with highly energy saving and arises the efficiency of air conditioner Long Ambient Operation In Low Temperature It can arise the reliability and the capacity of the air conditioner especially operated in low temperature Eco friendly Product Lead Free RoHS WEEE Easy installation of ultra lightweight indoor unit 2 Product Specifications 2 1 The Feature of Product ...

Page 7: ...or Product kg Net 34 0 34 0 46 1 Capacity Cooling STD W 3 600 5 200 7 100 Heating STD W Power Consumption Cooling STD W 1 200 1 730 2 730 Heating STD W Operation current Cooling STD A 5 5 7 8 11 5 Heating STD A Noise Indoor unit C H dB 35 39 41 Outdoor unit C H dB 49 50 50 Refrigerant 900 900 1 000 Connecting Pipe Liquid mm 6 35 6 35 6 35 Gas mm 12 7 12 7 15 88 Additional Refrigerant R410A g m 20 ...

Page 8: ...B69 01947A 1 1 Essential Offer Indoor Unit DB69 01947B 1 1 DB69 03017A 1 1 DB69 03017B 1 1 Installation gauge DB69 01936A 1 1 Installation gauge DB69 03011A 1 1 Seal drain ass y DB62 05810A 1 1 Insulation base DB72 00401C 2 2 Grommet hanger DB63 00237A 8 8 Cable tie DB65 10088C 3 3 Ass y drain hose joint DB94 01258C 1 1 User Installation manual DB68 05546A 1 1 ...

Page 9: ... EC00 Item Descriptions Code No Q TY Remark Wireless remote controller DB93 14643K 1 Optional Batteries for remote controller specification AAA type 4301 000121 2 Remote controller holder DB61 06087A 1 M4 16 screw 6002 000581 2 User s manual DB68 04667A 1 ...

Page 10: ...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 Installation guide DB98 32811A 1 ...

Page 11: ...CM 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 Installation guide DB98 33434A 1 ...

Page 12: ...Y Panel Code Remark Dust filter DB63 01694A 1 PC1NUSMAN Basic Water wash DB63 01695A 1 Dust filter DB63 02354A 1 PC1NUPMAN Basic Water wash DB63 02355A 1 Dust filter DB63 02276A 1 PC1BWSEAN Basic Water wash DB63 02277A 1 Dust filter DB63 02277A 2 PC1BWPEAN Basic Water wash ...

Page 13: ...2 8 Samsung Electronics 䒲 Front panel Item Descriptions Code No Q TY Remark PC1NUSMAN AC036JB1DEC 1 PC1BWSEAN AC052JB1DEC AC071JB1DEC 2 PC1NUPMAN AC036JB1DEC 5 PC1BWPEAN AC052JB1DEC AC071JB1DEC 7 ...

Page 14: ...Samsung Electronics 3 1 Q Necessary Tools 3 Disassembly and Reassembly Item Remarks Screw Driver Monkey Spanner Screw Driver Nipper Electric Motion Driver L Wrench Spanner Torque Wrench ...

Page 15: ... 1 Push the push button of grille and open it 2 Detach one clip from panel and separate the grille from panel tilting the grille 45 3 Detach filter from panel 4 Detach 3 cover screws 5 Unscrew 6 panel fixing screws from indoor unit use screw driver 3 1 Indoor unit 䒲 1WAY CASSETTE AC036JB1DEC Series ...

Page 16: ...Samsung Electronics 3 3 No Parts Procedure Remark 6 Press the left and right hook of panel and detach the panel from the indoor unit ...

Page 17: ...of drain pan use screw driver 2 Pull the drain pan and detach it from indoor unit Be careful that your hands don t touch heat exchanger panel when you detach the drain pan 3 ELECTRICAL EQUIPMENT PART 1 Unscrew 5 fixing screws of electrical equipment part and detach the cover use screw driver ...

Page 18: ... 5 No Parts Procedure Remark ELECTRICAL EQUIPMENT PART 2 Detach several connector connected to the indoor unit PCB 3 Detach electrical equipment part from indoor unit 4 DRAIN SUB 1 Press the hook of drain sub and detach it ...

Page 19: ...R 1 Unscrew 1 fixing screws of heat exchanger use screw driver 2 Detach indoor unit sensor from heat exchanger 3 Detach heat exchanger from indoor unit 6 CROSS PAN 1 Unscrew 3 fixing screws of cover fan motor use screw driver 2 Detach cover fan motor from indoor unit ...

Page 20: ...dure Remark 6 CROSS PAN 3 Detach cross fan from indoor unit 7 DRAIN PUMP 1 Unscrew 1 fixing screws of cover drain pump use screw driver 2 Detach drain hose from drain pump 3 Detach drain pump from indoor unit 8 SPI KIT 1 Detach SPI KIT from ...

Page 21: ...NWAK 1N 1 Push the push button of grille and open it 2 Detach one clip from panel and separate the grille from panel tilting the grille 90 3 Detach filter from panel 4 Detach 4 cover screws 5 Unscrew 7 panel fixing screws from indoor unit use screw driver 䒲 1WAY CASSETTE AC052 71JB1DEC Series ...

Page 22: ... the indoor unit 2 DRAIN PAN 1 Unscrew 6 fixing screws of drain pan use screw driver 2 Detach from indoor unit after separating 2 drain pan fixing hook Be careful that your hands don t touch heat exchanger panel when you detach the drain pan 3 SPI KIT option 1 Detach SPI KIT from indoor unit as as shown in the figure ...

Page 23: ... 10 Samsung Electronics No Parts Procedure Remark 4 ELECTRICAL EQUIPMENT PART 1 Detach a cover unscrewing 3 electrical equipment part fixing screw 2 Detach several connector connected to indoor unit PCB ...

Page 24: ...emark ELECTRICAL EQUIPMENT PART 3 Detach electrical equipment part from indoor unit 5 DRAIN PAN 1 Unscrew 2 fixing screws of drain pan use screw driver 2 Release band ring and Detach drain hose from drain pump 3 Detach drain pump from indoor unit ...

Page 25: ...AIN SUB 1 Unscrew a drain sub fixing screw use screw driver 2 Hold hook of drain sub and detach it 7 HEAT EXCHANGER 1 Unscrew 1 fixing screws of heat exchanger use screw driver 2 Detach indoor unit sensor from heat exchanger 3 Detach EEV connector from PCB ...

Page 26: ...tach heat exchanger from indoor unit 8 CROSS PAN 1 Unscrew 3 fixing screws of cover fan motor use screw driver 2 Unscrew a fixing screw of holder fan use screw driver Assemble to match a side end of holder fan with a side of cross fan when you reassemble it ...

Page 27: ...3 14 Samsung Electronics No Parts Procedure Remark 3 Detach cover fan motor from indoor unit 4 Unscrew 1 fixing screws of cross fan 5 Detach cross fan from indoor unit ...

Page 28: ...ronics 3 15 3 2 Outdoor Unit 䒲 AC036 052JCADEC Series No Parts Procedure Remark 1 1 Stop the operation of air conditioner and shut off the main power 2 Assy Cabi Top 1 loosen 6 pcs screw and detach the Assy Cabi Top ...

Page 29: ...dure Remark 3 Assy Cover Control 1 loosen 1 pcs screw and detach the Assy Cover Control 4 Assy Cabi Side RH 1 Loosen 2 pcs screws fixed to assemble Control Box with Cabinet Side RH 2 Loosen fixing 7 pcs screws and detach the Cabinet Side RH ...

Page 30: ...Samsung Electronics 3 17 No Parts Procedure Remark 5 Guard Cond 1 Loosen 1 pcs screw and detach the Guard Cond 6 Assy Cabinet Front 1 Loosen 5 pcs screws and detach the Assy Cabinet Front ...

Page 31: ...ark 7 Fan Motor Bracket Motor 1 loosen the 1 nut according the indication and detach the fan propeller 2 Disconnect the Motor wire from Assy Control Out 3 Loosen 4 pcs screws and detach the Motor 4 Loosen 5 fixing screws and detach the Bracket Motor ...

Page 32: ...ronics 3 19 No Parts Procedure Remark 8 Assy Control Out 1 Detach several connectors from the Assy Control Out 2 Loosen 1 pcs screws fixed to assemble Control Box with Assy Partition and detach the Assy Control Out ...

Page 33: ...onics No Parts Procedure Remark 9 Thermister 1 Disconnect the thermister wire from Assy Control Out 2 Detach the temperature sensor assembled to pipe heat exchanger 10 Reactor 1 Loosen 3 pcs screws and detach the Reactor ...

Page 34: ...efrigerant surely before compressor disassembly 1 Disassemble the Felt Compressor Sound 2 Loosen the fixing nut and detach the Compressor Lead Wire 3 Disassemble the pipes in both Discharge pipe and Suction Pipe with welding torch 4 Loosen the 3 nuts at the bottom of Compressor ...

Page 35: ... 3 Please weld after wrapping head with a towel and others so that EEV head is not heated when you replace EEV 1 Loosen 4 bolts fixed to assemble Valve Service with Bracket Valve 2 Disassemble the serevel pipe with welding torch 13 Heat Excharger Remove the refrigerant surely before Heat Exchanger 1 Loosen fixing screw on both sides 2 Disassemble the pipes in both inlet and outlet with welding tor...

Page 36: ...lectronics 3 23 䒲 AC071JCADEC Series No Parts Procedure Remark 1 common work 1 Stop the operation of air conditioner and shut off the main power 2 Assy Cabi Top 1 loosen 8 pcs screw and detach the Assy Cabi Top ...

Page 37: ...dure Remark 3 Assy Cover Control 1 loosen 1 pcs screw and detach the Assy Cover Control 4 Assy Cabi Side RH 1 Loosen 2 pcs screws fixed to assemble Control Box with Cabinet Side RH 2 Loosen fixing 7 pcs screws and detach the Cabinet Side RH ...

Page 38: ...Samsung Electronics 3 25 No Parts Procedure Remark 5 Guard Cond 1 Loosen 1 pcs screw and detach the Guard Cond 6 Assy Cabinet Front 1 Loosen 7 pcs screws and detach the Assy Cabinet Front ...

Page 39: ...ark 7 Fan Motor Bracket Motor 1 loosen the 1 nut according the indication and detach the fan propeller 2 Disconnect the Motor wire from Assy Control Out 3 Loosen 4 pcs screws and detach the Motor 4 Loosen 2 fixing screws and detach the Bracket Motor ...

Page 40: ...ark 8 Assy Control Out 1 Detach several connectors from the Assy Control Out 2 Loosen 2 pcs screws fixed to assemble Control Box with Assy Partition and detach the Assy Control Out 9 Thermister 1 Disconnect the thermister wire from Assy Control Out ...

Page 41: ...3 28 Samsung Electronics No Parts Procedure Remark 2 Detach the temperature sensor assembled to pipe heat exchanger ...

Page 42: ...r 11 Compressor Remove the refrigerant surely before compressor disassembly 1 Disassemble the Felt Compressor Sound 2 Loosen the fixing nut and detach the Compressor Lead Wire 3 Disassemble the pipes in both Discharge pipe and Suction Pipe with welding torch 4 Loosen the 3 nuts at the bottom of Compressor ...

Page 43: ...he refrigerant surely before pipe disassembly 2 Disassemble EEV Coil before work when you replace EEV 3 Please weld after wrapping head with a towel and others so that EEV head is not heated when you replace EEV 1 Loosen 4 bolts fixed to assemble Valve Service with Bracket Valve 2 Disassemble the serevel pipe with welding torch ...

Page 44: ...No Parts Procedure Remark 13 Heat Excharger Remove the refrigerant surely before Heat Exchanger 1 Loosen fixing screw on both sides 2 Disassemble the pipes in both inlet and outlet with welding torch 3 Detach the Heat Exchanger ...

Page 45: ... setting status select the option as listed below Step 1 Entering mode for option setting 1 Remove batteries from the remote controller 2 Insert the batteries while you press Temperature and Temperature button at the same time 3 Check if you have entered the option setting status High Temp Button High Fan Button Mode change Low Temp Button Low Fan Button Entering mode for setting option Option set...

Page 46: ...nterSEG8value Eachtimeyoupressthebutton p p p willbeselectedinrotation SEG6 SEG8 6 SettingFanmode PressModebuttontobechangedtoFANmodeintheONstatus 7 SettingSEG9 SEG10option PressLowFanbutton toenterSEG9value PressHighFanbutton toenterSEG10value Eachtimeyoupressthebutton p p p willbeselectedinrotation SEG9 SEG10 8 SettingHeatmode PressModebuttontobechangedtoHEATmodeintheONstatus 9 SettingSEG11 SEG1...

Page 47: ...n to enter SEG18 value Press High Fan button to enter SEG20 value Each time you press the button p p p will be selected in rotation SEG18 SEG20 16 Setting Fan mode Press Mode button to be change to Fan mode in the OFF status 17 Setting SEG21 SEG22 option Press Low Fan button to enter SEG21 value Press High Fan button to enter SEG22 value Each time you press the button p p p will be selected in rot...

Page 48: ... Input option Press the operation button with the direction of remote control for set For the correct option setting you must input the option twice Step 5 Check operation 1 Reset the indoor unit by pressing the RESET button of indoor unit or outdoor unit 2 Take the batteries out of the remote controller and insert them again and then press the operation button ...

Page 49: ...the ఴ వ buttons select a sub menu number and press the button to enter data setting screen Ź When you enter the setting stage the current setting will be displayed Ź Refer to the chart for data settings Ź Using the ఴ వ buttons select the settings Press the button to move to the next setting Ź Press the Set button to save the settings and exit to the sub menu setting screen Ź Press the Esc button t...

Page 50: ...re is more than one indoor unit 4 Set the indoor unit option by wireless remote controller Drain pump SEG8 will be set to USE 3 minute delay even if the drain pump is set to 0 Number of hours using filter SEG18 will be set to 1000 hour even if the SEG18 is set to except for 2 or 6 G ZPV JOQVU B OVNCFS PUIFS UIBO _ PG UIF JOEJWJEVBM DPOUSPM PG UIF JOEPPS VOJU 4 UIF JOEPPS JT TFU BT iJOEPPS w SEG1 S...

Page 51: ...1 Use 2 Use 3minute delay Option SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 Explanation PAGE Useofexternalcontrol Settingtheoutputof externalcontrol S Plasmaion Buzzercontrol Remote Controller Display Indication andDetails Indication Details Indication Details Indication Details Indication Details Indication Details Indication Details 2 0 Disuse 0 Thermoon 0 Disuse 0 Useof buzzer 2 1000Hour 1 ON OFF Cont...

Page 52: ...u want to change Thetens digitofan optionSEGyouwill change The unit digit of an option SEG you will change Changedvalue Indication 0 D 2 1 7 1 Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Explanation PAGE MODE The option mode you wanttochange Thetens digitofan optionSEGyouwill change Theunitdigitofan option SEGyouwill change Thechangedvalue Remote Controller Display Indication and Details Indication Detai...

Page 53: ... Remocon display AC036JB1DEC 0 1 7 0 7 C 1 1 0 4 2 D AC052JB1DEC 0 1 8 0 7 C 1 9 0 4 2 C AC071JB1DEC 0 1 8 0 7 C 1 9 0 4 4 C Model SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Remocon display AC036JB1DEC 2 7 2 8 0 0 3 7 5 2 6 0 AC052JB1DEC 2 7 3 4 0 0 3 7 2 5 6 0 AC071JB1DEC 2 7 4 8 0 0 3 7 F 5 6 0 ...

Page 54: ...git Tens digit Unit digit C 6 Eva Mid sensor 6 Tens digit Unit digit C 7 Cond sensor 7 Tens digit Unit digit C 8 Current 8 Tens digit Unit digit decimals A 9 Fan RPM 9 Thousands digit Hundreds digit Tens digit rpm 10 Target discharge temperature A Hundreds digit Tens digit Unit digit C 11 EEV B Hundreds digit Tens digit Unit digit step 12 The capacity sum of indoor units C Tens digit Unit digit de...

Page 55: ...tionerror E163 Blockage of outdoor unit v Communicationerrorbetweenindoorunitandoutdoorunit E101 X X X 2 minutes no communica unit and outdoor unit Co more than 2 minutes Communication error after tracking due to unmatching number of installedunits E201 X X X After complete Tracking of the indoor unit nu communicated error disconnection Communicationerrorbetweenindoorunitandoutdoorunit E202 When t...

Page 56: ...ChecktheconnectionofindoorunitmainPCBandsensorwire Checkabnormalityoffloatsensorunit 4 31page part Checkinsufficient solder cold solder short partsnon mountingofIC202partsPIN Checkinsufficient solder cold solder short partsnon mountingofIC202circuitperipheryparts 4 32page valve ChecktheBlockageofoutdoorunitvalve tion between the indoor mmunication error for Checkelectricalconnectionandsettingbetwe...

Page 57: ... 4 on the individual control of the indoor unit SEG 20 the indoor is set as Indoor 1 Example If you want to set as Exterior temperature sensor USE External control USE Number of hours using filer 2000hr assign option codes except SEG 1 7 13 19 which are page options SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 0 2 1 0 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 1 0 0 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 2 1 0 0 6 SEG19 SEG2...

Page 58: ...ion Details Indication Details 0 D Option mode _ Tens digit ofSEG _ Unitdigit ofSEG _ The changed value _ t 8IFO DIBOHJOH B EJHJU PG BO JOEPPS VOJU BEESFTT TFUUJOH PQUJPO TFU UIF 4 BT A t 8IFO DIBOHJOH B EJHJU PG JOEPPS VOJU JOTUBMMBUJPO PQUJPO TFU UIF 4 BT A Ex When setting the buzzer control into disuse status Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Explanation PAGE MODE The option mode you want to...

Page 59: ...271A21 370000 ACN035NDEHH SA 015077 166219 272328 370040 ACN052NDEHH SA 015077 17625D 273437 370040 ACN060NDEHH SA 015077 18626E 273C40 370040 AC026FBNDEH EU 015077 1960C8 271A21 370000 AC035FBNDEH EU 015077 1860F9 272328 370000 AC052FBNDEH EU 015077 17625D 273437 370040 AC060FBNDEH EU 015077 18626E 273C46 370040 AC071FBNDEH EU 015077 166381 274750 370040 NS0261DXEA 017057 1860F8 271A23 370010 NS0...

Page 60: ... temperature sensor Error of the condensor temperature sensor Error of the discharge temperature sensor t IFDL PVUEPPS UFNQFSBUVSF TFOTPS DPOOFDUJPO t IFDL PVUEPPS UFNQFSBUVSF TFOTPS T SFTJTUBODF WBMVF UP TFF JG JU T TIPSU PQFO operation off operation off operation off X X No communication for 2 minutes between indoor and outdoor unit communication error for more than 2 minutes t IFDL DPOOFDUJPO C...

Page 61: ...hree digits Two digits One digit Hz 3 Number of indoor heat exchangers 3 Three digits Two digits One digit Hz 4 Out sensor 4 Two digits One digit First decimal C 5 Discharge sensor 5 Two digits One digit First decimal C 6 OLP sensor 6 Two digits One digit First decimal C 7 Cond sensor 7 Two digits One digit First decimal C 8 Current 8 Two digits One digit First decimal C 9 Fan RPM 9 Three digits T...

Page 62: ...sung Electronics 4 19 4 3 3 ECO mode Power save Mode Display ECO mode lamp Segment 1 Segment 2 Segment 3 Segment 4 RED color ECO mode i w i w i w i w On Exit ECO mode Press K3 to exit Off ECO mode lamp RED ...

Page 63: ...door fan motor is non operative ח Indoor fan motor is operating slowly ח Indoor fan motor operates at an exces sive speed ח Check if a motor connector has been dismounted CN44 CN73 ח Check the fastening of the motor fan 䢻 X X 䢻 X ח Disjointed or cut off of outdoor tem perature sensor ח Disjointed or cut off of the outdoor sensor of heat exchanger COND ח Dismounted cut off of the outdoor discharge ...

Page 64: ...ircuit defect ח Check non delivery cool delivery non insertion of IC51 Part Pin ח Check non delivery cool delivery non insertion of IC51 peripheral circuit components 䢻 䢻 䢻 䢻 䢻 ח EEPROM option none input error input ח Re input of option code for indoor unit ل Turn on ስ Flashing Ή Turn off 㽞 LED lamp display when error is detected ...

Page 65: ...main micom PS 1 _ DPOUSPMMFS FSSPS XJMM CF EFUFSNJOFE GSPN UIF UJNF when compressor is turned on Check electrical connection and set ting between indoor unit MAIN PBA INVERTER PBA 10 E221 Error on outdoor temperature sensor Short or Open Check Outdoor sensor Open Short 11 E231 Error on outdoor COND OUT sensor Short or Open Check Cond Out sensor Open Short 12 E251 Error on discharge temperature sen...

Page 66: ...r unit EEPROM Read Write error H W Check Outdoor EEPROM PBA 33 E474 Error on IPM Heat Sink sensor of inverter 1 Short or Open Check Outdoor Inverter PBA 34 E475 Error on inverter fan 2 FAN2 ERROR 35 E483 H W DC_Link Over Voltage Error Check AC Power 36 E484 PFC Overload Over current Error Check Outdoor Inverter PBA 37 E485 Error on input current sensor of inverter 1 Short or Open 38 E488 AC Input ...

Page 67: ...iagnostic error Error on thermal fuse of indoor unit Open Thermal fuse open check of indoor unit terminal block Operation Off Indoor unit protection control error Communication error after tracking due to unmatching number of installed units Check indoor quantity setting in outdoor Operation Off Communication error Indoor outdoor communication error 1 min Check the communication connection between...

Page 68: ... the compressor Operation Off Outdoor unit protection control error Inverter Total current error PFC over current error Check the input power Check the coolant charging status Check the normal operation of outdoor fan Operation Off Outdoor unit protection control error Over current trip PFC over current error Check service valve open Check pipe connections leakage Check outdoor location and orient...

Page 69: ...r Check reactor wire Check outdoor inverter PBA Operation Off Outdoor sensor error IPM over heat error on inverter 1 Check outdoor inverter PBA Operation Off Outdoor unit protection control error Gas leak error Check the coolant charging status Check the indoor EVA sensor Check if the outdoor unit service value is open Check that the indoor outdoor installation pipe wiring are correct Operation Of...

Page 70: ... Is indoor temperature sensor disconnected from the connector in PCB 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 4 4 Troubleshooting by symptoms 4 4 1 Indoor temperature sensor open short E121 ...

Page 71: ...indoor heat exchanger temperature sensor connector from the PCB and measure the resistance between two terminals Indoor unit display 4way Operation Defrost X Timer X Filter 1way Operation X Defrost Reservation X Fan X Filter Symptom Short or open circuit of indoor heat exchanger temperature sensor Failure Short or open circuit in the corresponding sensor 4 4 2 Indoor heat exchanger temperature sen...

Page 72: ...nnector to PCB Yes No Does the motor rotates when operating Motor ᐯ ᐱ T WPMUBHF PG 7_ 7 EJTQMBZFE Check the PCB and replace it Is the RPM of motor less than 120 Yes During operation or Operation at the beginning E154 is displayed No Check the motor and replace it Yes Ex Depending on FAN RPM voltage of 7_ 7 JT PVUQVU 1 2 3 4 5 6 4 waycassettetype Check the normal operation No Is the motor connector...

Page 73: ...D01 RED is not ON In this case is the voltage waveform between the lines square wave with amplitude over 0 7V as shown in the following picture 0 7V 0 7V Good Bad Check the communication cable and replace 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 ...

Page 74: ...waterlevelinthedrainpanhigh Doesdrainpumpoperate whencompressoroperates Sameerroroccursagain No Isthewaterlevelin drainpandecreasing Resettheindoorunitpowerand checktheoperationofthedrainpump itvibrateswhenoperating Normaloperation ReplacetheindoorunitPCB Reassemblethefloatingsensor connectorandresettheoutdoorunitpower Indoorunitpowerresetisrequired Normaloperation Replacethefloatingsensor whenitfai...

Page 75: ...maged soldering failure 4 4 6 EEPROM circuit failure E162 Restart the unit after replacing the PCB No Yes Are the EEPROM circuit components in good conditions missing components damage soldering failure Replace the PCB if the restart fails AC666JB1DEC6 only AC666MN1DKH6 only AC666JB1DEC6except AC666MN1DKH6except EEPROM Reassembly Remove short or unsoldering Replace EEPROM PBA No No Yes Yes Is EEPR...

Page 76: ...ction of the CN140 wire Check the connection of the terminal block Temperature rise by untightening a screw Termal Fuse open 4 4 7 Thermal Fuse Open Error E198 occurs Measure both ends of connector connected the TERMINAL BLOCK Replace the MAIN PBA No No Yes Is the CN140 connector of PCB between wire correctly connected Paragraph Short Has the connector ends Re operation after the connector ...

Page 77: ...onics 5 1 PCB Diagram and Parts List 5 PCB Diagram and Parts List 5 1 Indoor Unit 5 1 1 Slim 1 way cassette type 1way cassette AC036JB1DEC6 AC026 036MN1DKH6 22 1 2 3 4 5 16 11 17 6 18 7 19 8 20 9 12 14 13 23 15 21 10 ...

Page 78: ... 6 EEPROM_SI 7 EEPROM_CLK 1 DC12V 2 VENT SIGNAL OUTPUT GND 1 DC12V 2 HUMAN SENSOR COMM TXD 3 HUMAN SENSOR COMM RXD 4 GND 1 GND 2 GND 3 SPI POWER OUTPUT DC12V 1 DC5V 2 GND 3 MOTOR FEEDBACK 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 6 DC12V 7 10 LOUVER SIGNAL OUTPUT 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 1 4 EEV SIGNAL OUTPUT 5 DC12V 6 DC12V 1 POWER L 2 POWER N 1 COM1 F1 2 COM1 F2 3...

Page 79: ...Samsung Electronics 5 3 PCB Diagram and Parts List 1way cassette AC052 071JB1DEC6 22 1 2 3 4 16 5 11 6 7 8 20 10 13 15 23 17 18 19 9 12 21 14 ...

Page 80: ...EEPROM_SI 7 EEPROM_CLK 1 DC12V 2 VENT SIGNAL OUTPUT GND 1 DC12V 2 HUMAN SENSOR COMM TXD 3 HUMAN SENSOR COMM RXD 4 GND 1 ROOM THERMISTOR 2 GND 1 4 EEV SIGNAL OUTPUT 5 DC12V 6 DC12V 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 6 DC12V 7 10 LOUVER SIGNAL OUTPUT 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 1 GND 2 GND 3 SPI POWER OUTPUT DC12V 1 POWER L 2 POWER N 1 COM1 F1 2 COM1 F2 3 V1 DC12V...

Page 81: ...Samsung Electronics 5 5 PCB Diagram and Parts List 5 1 2 PANEL PCB 1way cassette 1 1 CN01 INDOORUNITMAINPBA CONNECTION 1 2 3 4 5 DISPLAYLEDCONTROL 6 NOTUSED 7 RECEIVEREMOCONSIGNAL DC Connector ...

Page 82: ...PCB Diagram and Parts List 5 6 Samsung Electronics 17 6 7 1 16 2 11 4 13 12 3 5 8 14 9 15 10 Main PCB AC036 052JCADEC6 5 2 Outdoor Unit ...

Page 83: ...V 5 CONTROL SIGNAL 6 FEED BACK CONTROL 1 4WAY CONTROL SIGNAL 2 NOT USED 1 DC 15V 2 GND 3 ENABLE 1 20 DOWNLOAD PORT 1 DC 12V 2 GND 3 DC 5V 1 U 2 V 3 W 1 REACTOR1 2 REACTOR2 1 NEUTRAL 2 LIVE 1 3 DRED SIGNAL 4 GND 5 DC 5V CN206 SUB DISPLAY CN205 SUB DISPLAY CN207 SUB DISPLAY CN551 INVERTER DOWNLOAD CN204 DRED CN501 EEPROM PORT CN301 485 COMM CN251 TEMP SENSOR EEV A EEV VALVE CN901 BLDC MOTOR CN030 4W...

Page 84: ...PCB Diagram and Parts List 5 8 Samsung Electronics 5 6 9 17 7 4 3 2 12 15 14 13 1 11 8 10 16 Outdoor PCB cont Main PCB AC071JCADEC6 ...

Page 85: ...DC12V 1 DC 310V 2 NOT USED 3 AGND 4 DC 15V 5 CONTROL SIGNAL 6 FEED BACK CONTROL 1 4WAY CONTROL SIGNAL 2 NOT USED 1 DC 15V 2 GND 3 ENABLE 1 20 DOWNLOAD PORT 1 DC 12V 2 GND 3 DC 5V 1 U 2 V 3 W 1 REACTOR1 2 REACTOR2 1 NEUTRAL 2 LIVE 1 3 DRED SIGNAL 4 GND 5 DC 5V CN206 SUB DISPLAY CN205 SUB DISPLAY CN207 SUB DISPLAY CN551 INVERTER DOWNLOAD CN204 DRED CN501 EEPROM PORT CN301 485 COMM CN251 TEMP SENSOR ...

Page 86: ...am and Parts List 5 10 Samsung Electronics 1 DC 15V 2 GND 3 ENABLE 1 NEUTRAL 2 LIVE 1 DC 12V 2 GND 3 DC 5V CON03 INVERTER DC POWER CON01 SMPS AC POWER CON02 MAIN DC POWER 1 3 2 Outdoor PCB cont SMPS AC666JCADEC6 ...

Page 87: ...rts List 3 1 2 1 7 SEGMENT SIGNAL 8 10 KEY INPUT SIGNAL 1 KEY INPUT SIGNAL 2 5 GRID SIGNAL 6 10 REPEATER SIGNAL 1 DC 12V 2 GND 3 DC 5V 4 5 NOT USED CN501 INVERTER PBA CN502 INVERTER PBA CN205 SUB DISPLAY Outdoor PCB cont Sub display AC666JCADEC6 ...

Page 88: ...eparator 1 1WAY CST CST 2 2WAY CST N MINI 4WAY CST 4 4WAY CST H HSP DUCT Duct M MSP DUCT L LSP DUCT E FRESH AIR INTAKE DUCT G CEILING CONCEILED DUCT C CEILING ETC J CONSOLE F FLOOR MOUNTING RatingVoltage A A 115V 60hz 1Ф B B 220V 60Hz 1Ф C C 208 230V 60Hz D D 200 220V 50Hz E E 220 240V 50Hz F F 208 230V 60Hz 3Ф G G 380 415V 50Hz 3Ф H H 380V 60Hz 3Ф J J 460V 60Hz 3Ф K K 220 240V 50 60Hz 1Ф M M 127V...

Page 89: ... Side GeneralTemp CAC S Inv Side LowTemp Q Inv Side TropicalTemp F Inv Top TropicalTemp B Non Inv Side GeneralTemp N Non Inv Side LowTemp R Non Inv Side Tropical Temp Z Non Inv Top Tropical Temp ࣜ 4Way 4 MSP Duct M Ceiling C RatingVoltage A A 115V 60hz 1Ф B B 220V 60Hz 1Ф C C 208 230V 60Hz D D 200 220V 50Hz E E 220 240V 50Hz F F 208 230V 60Hz 3Ф G G 380 415V 50Hz 3Ф H H 380V 60Hz 3Ф J J 460V 60Hz ...

Page 90: ...P Panel ProductType C CST Product classification 1N Standard 1 way CST 1B Large size 1 way 2N 2 WAY 4N 4 WAY 4S MINI 4 WAY 4R Round Panel version 1 2 Korean market use A B Export foreign market use Communication type 1 2 NASA 485 Color B Black E WINE U White V Ivory Language K Korean C Chinese M 8 Languages E English TYPE A Automatic boarding slide S STANDARD H PREMIUM Global 4 Way Panel Pattern W...

Page 91: ... EEV Heat Exchanger 6 2 Refrigerating Cycle Diagram Category Symbol Description Compressor RotaryInveterCompressor HeatExchanger Condensing Evaporatingunit Accumulator Accumulator Valve Expansion ElectronicExpansionValve EEV Service Servicevalve Senser Temperature Pip AirTemperaturesensor ...

Page 92: ...able International and or domestic law Samsung Electronics Co Ltd December 2016 Printed in Korea Code No AC 00124E_2 GSPN GLOBAL SERVICE PARTNER NETWORK Area Web Site Europe CIS Mideast Africa gspn1 samsungcsportal com Asia gspn2 samsungcsportal com North Latin America gspn3 samsungcsportal com China china samsungportal com ...

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