Samsung AM045NN4DEH Series Service Manual Download Page 130

Page: 130 / 156

Troubleshooting

130

Samsung Electronics

4-4-83 Outdoor Fan PCB Overvoltage / Low voltage error

Outdoor unit display

Judgment Method

∙ N-phase wiring error and EMI Fuse short.
∙ DC-Link Overvoltage / Low voltage occurs.

Cause of problem

∙ Check the input wiring
∙ EMI Fuse short

Power Off

Yes

Is Inverter PCB CN15

and Fan PCB CN11 DC-Link voltage connection

wire accurately connected?

Connection and then restart it

Replace Fan PCB

1. Cause of problem

Summary of Contents for AM045NN4DEH Series

Page 1: ...71 090 112 128 140NN4DEH AM015 022 028 036 045 056 060NNNDEH AM009 012 018 024 036 048NN4DCH AM005 007 009 012 018 020NNNDCH 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troub...

Page 2: ...nic Expansion Valve opening malfunction 2nd stage 58 4 4 10 Breakdown of EEV 2nd 59 4 4 11 Problem with EEV closure 2nd 60 4 4 12 EEV Electronic Expansion Valve opening malfunction 2nd stage 61 4 4 13...

Page 3: ...or Discharge Temperature sensor 107 4 4 60 3 phase Input Wiring error 108 4 4 61 Comp Down by Compression Ratio Control 109 4 4 62 EVI EEV Open error 110 4 4 63 Refrigerant Leakage Error 111 4 4 64 Pr...

Page 4: ...ing Diagram 151 6 1 Indoor 151 6 1 1 Wind free 4way cassette type 151 7 Reference Sheet 152 7 1 Index for Model Name 152 7 1 1 Indoor Unit 152 7 1 2 Panel 153 7 2 Pump down Method 154 7 2 1 Precaution...

Page 5: ...atic electricity Please wear insulation gloves before performing PCB repair and measurement Check if the place of installation is at least 2m away from electronic appliances such as TV video players a...

Page 6: ...sing a danger to workers Please remove the oxide produced inside the pipe during the welding with nitrogen gas Using another gas may cause harm to the product or others 1 6 Precautions for Additional...

Page 7: ...Type R410A R410A R410A R410A R410A Control Method EEV EEV EEV EEV EEV Temperature Control Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Safety Devices Fuse...

Page 8: ...0A R410A Control Method EEV EEV EEV EEV EEV Temperature Control Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Safety Devices Fuse Fuse Fuse Fuse Fuse Piping...

Page 9: ...ntrol Method EEV EEV EEV EEV EEV Temperature Control Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Safety Devices Fuse Fuse Fuse Fuse Fuse Piping Connection...

Page 10: ...rol Method EEV EEV EEV EEV EEV Temperature Control Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Safety Devices Fuse Fuse Fuse Fuse Fuse Piping Connections...

Page 11: ...R410A R410A R410A R410A R410A Control Method EEV EEV EEV EEV EEV Temperature Control Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Micom Thermistors Safety Devices Fuse Fuse...

Page 12: ...C BLDC Output W 65 5 65 5 Air Flow Rate H M L UL CMM 13 00 11 00 9 50 13 50 12 00 10 20 l s 217 183 158 225 200 170 Refrigerant Type R410A R410A Control Method EEV EEV Temperature Control Micom Thermi...

Page 13: ...iver needed MR EH00 Cassette Duct Receiver needed MR KH00 360 cassette AR EH03E All model Wired remote controller Multi function MWR WE10N Cassette Wall mounted Ceiling Duct Console ERV MWR WE13N All...

Page 14: ...ver 50 HP Header joint MXJ HA2512M Below 46 4 kW DVMS HP HR Requisite MXJ HA3115M Below 69 6 kW MXJ HA3819M Over 69 7 kW EEV kits MXD E13K116A Below 3 6 kW 1 Room 5 6 kW 9 0 kW 1Room Wall mounted Ceil...

Page 15: ...lim 1way cassette Wind free 1way cassette PC1NWSMAN Slim 1way cassette PC1MWSKAN Slim 1way cassette 1way cassette Requisite PC1NUPMAN Slim 1way cassette PC2NUSMEN 2 way cassette PC4SUSMAN Mini4way cas...

Page 16: ...16 Samsung Electronics Necessary Tools 3 Disassembly and Reassembly Item Remark Screw Driver Monkey Spanner Screw Driver Nipper Electric Motion Driver L Wrench...

Page 17: ...e safety clip and white link from the panel 3 Remove the 2 fixed screws to remove the Control Box Cover Use Screw Driver 4 Remove the 4 connector wires from the PBA Remocon Receiver Blade motor and Hu...

Page 18: ...Hangers at both sides of the panel inwards and rotate them 90 degrees to remove it from the indoor unit s Hock Remove the panel from the indoor unit 2 Control Box 1 Disconnect the ConnectorWire that i...

Page 19: ...nscrew 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 th...

Page 20: ...afety 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 Use Screw Driver 4 R...

Page 21: ...ards to remove it 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...

Page 22: ...trol Box and disassemble the Control Box from the indoor unit Use Screw Driver 3 Bell Mouth 1 Unscrew the screw fixed on the Bell Mouth Use Screw Driver 1 Push the Bell Mouth in the direction opposite...

Page 23: ...Disassembly and Reassembly Samsung Electronics 23 No Parts Procedure Remark 4 Drain Pan 1 Remove the Drain Pan from the indoor unit...

Page 24: ...0 10 black 6 Set up the number of connected outdoor units 2 MICOM download AS PRO SMW200 07P white 7 For checking indoor unit communication YW396 02P red 3 ERROR DISPLAY 8 Transmitter 12V YW396 02P bl...

Page 25: ...K K BLANK BLANK K2 Numberofpress Keyoperation Displayonsegment 1time RefrigerantcharginginCoolingmode K 5 BLANK BLANK 2times TrialoperationinCoolingmode K 6 BLANK BLANK 3times PumpdownallunitsinCooli...

Page 26: ...ct Operationtime Min 60minutes Max 10hours Etc Exceedthemaximumoperatingtimeatstopsandwaits Protectionandcontrol self diagnosisisperformed Refrigerant filling operation Operationtofillingtherefrigeran...

Page 27: ...ondingOutdoorUnitoperation Topumpoutmorethan2 ExceptcommunicationbetweenOutdoorUnitofrelevantsetafterworkingforone remaindersetmakesPumpOutadd Cooling Pump Down RecovertherefrigerantofIndoorUnitandPip...

Page 28: ...al discharge In particular E 464 E364 power devices may be damaged therefore do not use the discharge mode Block the Inverter PCB 3 phase relay after connected the power and through compressor DC volt...

Page 29: ...rethan10 C Coolingcommissioning Outdoortemperatureislessthan10 C Heatingcommissioning Oilrecoverystart Oilrecoverystart Itisafter10minuteswhichSafetyStartfinishes Etc Oilrecoveryshutdownandstopthenorm...

Page 30: ...Temp button 3 Check if you have entered the option setting status Step 2 The procedure of option setting After entering the option setting status select the option as listed below The total number of...

Page 31: ...SEG6 SEG8 option Press Low Fan button to enter SEG6 value Press High Fan button to enter SEG8 value Each time you press the button will be selected in rotation 6 Setting Fan mode Press Mode button to...

Page 32: ...e change to Dry mode in the OFF status 15 Setting SEG18 SEG20 option Press Low Fan button to enter SEG18 value Press High Fan button to enter SEG20 value Each time you press the button will be selecte...

Page 33: ...ot Step 4 Input option Press 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...

Page 34: ...SEG12 1 Drain pump Hot water heater Electronic heater Opening the electronic expansion valve Master Slave SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 2 External control External control output S Plasma ion B...

Page 35: ...tion SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 Explanation PAGE Use of external control Setting the output of external control S Plasma ion Buzzer control Number of hours using filter Remote Controller Disp...

Page 36: ...is automatically set to 0 by default The SEG5 option Use of central control is set to 1 Use by default Therefore you don t need to set the SEG5 option additionally Note that even if the central contro...

Page 37: ...n when thermostat is off 0 2 0 Disuse Cooling Heating Disuse 0 Disuse 0 Disuse recessed installation 1 Use Cooling Heating Disuse 2 Disuse Heating Use 2 1 Use 1 High ceiling mode recessed installation...

Page 38: ...Use 4 3 Window ON or OFF control 3 Use 4 Option SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Function Page Individual control with remote control Heating setting compensation offset Removing condensated water...

Page 39: ...only indoor unit To use this option install the Mode Select switch MCM C200 on the outdoor unit and fix it to the Cool mode 4 When the following 2 or 3 is used as external heater On or Off signal the...

Page 40: ...ling reference temperature When setting SEG3 Reference for change from Heat mode to Cool mode SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 1 When setting SEG3 Reference for change from Cool mode to Heat mode When...

Page 41: ...0 AM036NNNDEH AM036NNNDEH 0 1 5 0 4 F 1 9 3 4 2 A 2 0 2 4 2 4 3 3 0 0 0 0 AM045NNNDEH AM045NN4DEH 0 1 5 0 4 F 1 9 5 4 4 E 2 0 2 D 2 D 3 3 0 0 0 0 AM056NNNDEH AM056NNNDEH 0 1 5 0 4 F 1 9 5 4 7 F 2 0 3...

Page 42: ...municationerroraftertrackingduetounmatchingnumberof installedunits 5 Errorduetorepeatedcommunicationaddress 6 Communicationaddressnotconfirmed Otheroutdoorunitcommunicationerrorthatisnotontheabovelist...

Page 43: ...leindoorunit E164 On Flickering Off If you turn off the air conditioner when the LED is flickering the LED is also turned off If you re operate the air conditioner it operates normally at first then d...

Page 44: ...oor unit and other methods of error display Error Number Outdoor unit address Error Number repeat display E471 U200 E471 U200 E206 C001 E206 C002 Displayed alphabet Explanation When displaying Error 1...

Page 45: ...te in cooling or heating and some of the indoor unit is trying to operate in heating or cooling mode E 162 EEPROM error of MICOM Physical problem of parts circuit E 163 Indoor unit s remote controller...

Page 46: ...on compared to number of indoor units assigned to MCU E 219 Error on temperature sensor located on MCU intercooler inlet Short or Open E 220 Error on temperature sensor located on MCU intercooler outl...

Page 47: ...to overcurrent of Fan2 E 385 Error due to input current of inverter 2 E 386 Over voltage low voltage error of Fan2 E 387 Hall IC connection error of Fan2 E 389 V limit error on Fan2 of compressor E 3...

Page 48: ...t current sensor error of Fan1 E 496 DC voltage sensor error of Fan1 E 499 Heat sink temperature sensor error of Fan1 E 500 Error due to overheat caused by contact failure on IPM of Inverter PBA1 E 50...

Page 49: ...rror due to freeze prevention Re operation is possible E 909 Error due to freeze prevention Re operation is impossible E 910 Water temperature sensor on water outlet pipe is detached E 911 Flow switch...

Page 50: ...efect of the product 1 Tracking is complete and after the initial installation if you do not have a history of commissioning is completed UP will be dis played 2 Execute the automatic commissioning by...

Page 51: ...ot Main PCB defective Hub PCB defective High pressure switch operation 1 Cause of problem ReplaceFanPCB ChecktheconnectionstatusofEMIPCB ChecktheshortcircuitofEMIPCBFuse Refrigerantovercharge Highpres...

Page 52: ...both terminals Re start after replacing PCB Re start after connecting the connector to the PCB As it is due to an indoor oom temperature sensor defect replace it Yes No No Ex Room temp 26 C Resistance...

Page 53: ...both terminals Re start after connecting the connector to the PCB As it is due to an indoor EVAP IN sensor defect replace it Yes No No Ex Room temp 26 C Resistance 10 93K Yes Re start after replacing...

Page 54: ...both terminals Re start after replacing PCB Re start after connecting the connector to the PCB As it is due to an indoor EVAP OUT sensor defect replace it Yes Yes Yes No No Part to measure resistance...

Page 55: ...Before and after the Compressor operation EVA Out tem perature difference is less than 3 C Restart operation after connecting the connector to the PCB After separating the Indoor EVA In sensor connect...

Page 56: ...ydro Unit Before and after the Compressor operation EVA Out tem perature difference is less than 3 C Restart operation after connecting the connector to the PCB After separating the Indoor EVA Out sen...

Page 57: ...details Simultaneous indoor heat exchanger s EVA IN OUT sensor dislocation error 2 During Heating operation Average high pressure 25kg OK Average low pressure 8 2kg OK Teva out Tair out 3 C NO Tair i...

Page 58: ...eration Excessive reset operation can cause damage to the Heat Exchanger Is the EEV wire connected to the PCB Yes No No No No Yes Yes Yes ConnecttoPCBandrestartoperation ConnecttheEEVcoilproperlyand r...

Page 59: ...there is any rust on the surface of the electronic expansion valve with naked eyes then check the resistance between each terminal to find any wire breaking or short circuit 4 Press the RESET KEY K3...

Page 60: ...if there is any rust on the surface of the electronic expansion valve with naked eye then check the resistance between each terminal to find any wire breaking or short circuit 4 Press the RESET KEY K...

Page 61: ...themainbody properly Aftermeasuring thecoilterminalresistance isthereadisconnectionorshort circuitinsidethecoil AfterResetting theOutdoorUnit doesanerroroccur evenafterrunningitagainwith thesamecombin...

Page 62: ...T Room 3 C andT Eva_Out T Room 3 C condition for more than 5 minutes 2 How to check No Connect to PCB and restart operation No Connect the EEV coil properly and restart operation Yes Replace EEV coil...

Page 63: ...on Normal operation Indoor unit s power reset after replacement Reassembly Floating Sensor Connector and reset Outdoor Unit power Indoor unit power reset required Normal operation Diagnosed as a defec...

Page 64: ...k of RPM value 2 If a fan motor operation capacitor is a PCB separating type check the connection terminal 3 Check the operational status of the fan motor 4 If there is no problem with the above check...

Page 65: ...roduct problem but is displayed when the operational mode input in an indoor unit is different from current operational status other indoor unit s operational mode Check the operational mode of outdoo...

Page 66: ...g model options and power reset does the error occur again Replace PCB Yes No Normal operation No 1 How to check Check the location of EEPORM by referring to the schematic diagram Replace PCB Outdoor...

Page 67: ...n enter correct options 4 4 19 Error due to confused use of Fahrenheit and Celsius Check relevant remote controller options for each model then enter correct options As this happens only in a Celsius...

Page 68: ...eck up methods 1 How to check Yes Are an indoor unit address cooling heating position of the MCU SOL VALVE connector correctly connected Check the indoor unit address cooling heating position and make...

Page 69: ...ck for disconnected line after turning off the Main power Outdoor unit display Indoor unit display Wall mount LED Displays 18o C 21 o C Reservation 24 o C 27 o C Criteria Check for Power input 220V fo...

Page 70: ...d from PCB Connect the connector to PCB and reoperate Yes No Replace Main PCB Can you measure 12V from 1 4 power with SPI connector being connected Replace SPI No Yes 1 4 Outdoor unit display Indoor u...

Page 71: ...the relevant MCU ports Check if the indoor unit usage setup switch is turned on for the MCU port connected to the indoor unit Outdoor unit display No change of EVA IN or wrong EVAN IN change during p...

Page 72: ...etheindoorunitPCB Isthevoltagebetween the2cablesasquarewavewith DC 0 7Vormore Arethenumberof actualinstalledindoorunitsandthesetvalueforthe installationquantitysetup switchthesame Correctlysettheindoo...

Page 73: ...changetheindoorunitPCB Aftertwominutes findtheindoorunitwhichdisplays thecommunicationerrorandcheckifthePCBaddress settingsareoverlapped Communicationerroroccursiftheindoorunit addressesareoverlapped...

Page 74: ...V Checkwiringofoutdoorunit communicationcable CheckK13andK14setup optionsforoutdoorunit ReplacePCB Checkthepower Changewiringorconnect Changesettings Yes Yes Yes No No No 1 Cause of problem EssentialR...

Page 75: ...ables a square wave with DC 0 7V or more Are the quantity of the actually installed MCUs and the set value of the installation quantity setup switch the same Correctly set the installation quantity se...

Page 76: ...sInverterPCB1CN32andInverterPCB CN31connectoraccuratelyconnected 1 ChecktheInverterPCB1CN32 CN91andFan PCBCN12Communicationwire Connector 2 RestartoperationafterconnectingtheHubPCB CN97andFanPCBCN13co...

Page 77: ...ionstatus CN12connector FanPCBCN13connection No No No Yes Yes Yes Connectionwireof HubPCB MainPCBdidconfirmation Verifythebrokenwire LightingofFanPCBLD41didconfirmation IsFanPCBCN13connectoraccurately...

Page 78: ...d change the MCU PCB After two minutes find the MCU which displays the communication error and check if the PCB address settings are overlapped A communication error occurs if the indoor unit addresse...

Page 79: ...it off to restart MCU BOX 0 MCU PCB OFF MCU address setup ON Setting error Indoor unit Indoor unit address Branch part use setup 4 2 1 2 5 6 0 Branch A 4 B 2 C D E 5 F 6 MCU BOX 0 MCU PCB OFF MCU add...

Page 80: ...urn it off to restart MCU BOX 0 MCU PCB OFF MCU address setup ON Setting error Indoor unit Indoor unit address Branch part use setup 4 2 1 2 5 6 0 Branch A 4 B 2 C D E 5 F 6 MCU BOX 0 MCU PCB OFF MCU...

Page 81: ...4 2 1 5 6 0 Branch A 4 B C D E 1 F 6 MCU BOX 0 Outdoorunit PCB MCU PCB OFF MCU address setup ON Indoor unit Indoor unit address Branch part use setup 4 4 2 1 5 5 1 6 0 Branch A 4 B C D E 5 F 6 MCU BO...

Page 82: ...r Indoor Quantity Used MCU Address Setup Setup for Indoor Quantity Used ON Indoor Unit Indoor Unit Indoor Unit Indoor Unit Address Setup for Using Branch Sphere 4 4 2 1 5 5 1 6 0 Branch Sphere A 4 B C...

Page 83: ...MCU BOX 0 MCU PCB OFF MCU address setup ON Indoor unit address Branch part use setup 4 2 2 0 5 6 0 Branch A B C D E F MCU BOX 1 MCU PCB OFF MCU address setup ON Indoor unit address Branch part use set...

Page 84: ...se setup 4 2 2 0 5 6 0 Branch A B C D E F MCU BOX 1 MCU PCB OFF MCU address setup ON Indoor unit address Branch part use setup 4 0 1 2 5 7 1 Branch A B C D E F MCU BOX 1 MCU PCB OFF ON 1 3 7 9 0 0 1 B...

Page 85: ...set or turn off to restart OFF Indoor unit address 4 0 1 2 5 7 Branch A B C D E F MCU BOX 1 MCU PCB OFF ON 1 3 7 9 0 0 1 Branch A B C D E 0 F MCU BOX 1 MCU PCB OFF MCU address setup ON Indoor unit Ind...

Page 86: ...reset or turn off to restart MCU BOX 0 Outdoor unit PCB MCU PCB OFF MCU address setup Indoornumbersetup MCUnumbersetup ON Indoor unit address Branch part use setup 1 2 2 1 8 6 1 6 0 Branch A 1 B 2 C...

Page 87: ...eresistancevalue betweentheterminals RestartoperationafterreplacethePCB Restartoperationafterconnecting theconnectortothePCB Replacethissinceitisthedefectiveof theoutdoortemperaturesensoritself Yes No...

Page 88: ...emperature table to the next After separating the outdoor temperature sensor connector from the PCB measure the resis tance value between both terminals Restart after replacing the PCB Restart after c...

Page 89: ...easuretheresistance valuebetweenthetwoterminals RestartoperationafterreplacethePCB Restartoperationafterconnecting theconnectortothePCB Replacethispartasitisthedefectiveofthe outdoorCondOutsensoritsel...

Page 90: ...is in operation indoor unit operation andThermo On OK Error Content Outdoor Cond Out sensor breakaway error Yes Yes IstheCondOut sensorandthesensorholdercorrectly attached Arethereanychanges nthevalue...

Page 91: ...PCB and measure the resistance value between the 2 terminals Restart operation after changing PCB Restart operation after connecting the connector to PCB Change this part as it is the fault of the di...

Page 92: ...or from the PCB and measure the resistance value between the 2 terminals Restart operation after changing PCB Restart operation after connecting the connector to PCB Change this part as it is the faul...

Page 93: ...rationafterreplacethePCB Restartoperationafterconnecting theconnectortoPCB Replacethispartasitisthedefectiveofthe CompressorDischargeor TopTemperaturesensoritself Yes No No Temperature C 130 120 100 8...

Page 94: ...ndition of Tsump real Tsump ini 2 C has been satisfied for 60 minutes since a compressor started it is diag nosed as an error After 60 minutes of compressor operation there will be no Sump sensor disl...

Page 95: ...insertthesensor Re attachthesensorholder No Yes Yes Outdoor unit display Indoor unit display Operation Timer Criteria If the suction temperature right before operating the Comp when the operating ord...

Page 96: ...e resistance value between the two terminals Restart operation after changing PCB Restart operation after connecting the connector to PCB Change this part as it is the fault of the outdoor SUMP sensor...

Page 97: ...eplaceHighPressuresensor Pleasere inspectafterconnecting theconnectortothePCB No Yes DidtheHighPressure sensorconnectorgetdisconnected fromthePCB Refillrefrigerantaftervacuum No Yes Isthererefrigerant...

Page 98: ...eplace LowPressuresensor Pleasere inspectafterconnecting theconnectortothePCB No Yes DidtheLowPressuresensorconnector getdisconnectedfromthePCB Refillrefrigerantaftervacuum No Yes Isthererefrigerantin...

Page 99: ...measuretheresistancevalue betweenthe2terminals RestartoperationafterreplacethePCB Restartoperationafterconnecting theconnectortoPCB Replacethispartasitisthedefectiveofthe OutdoorSuctionsensoritself No...

Page 100: ...Bandmeasuretheresistancevalue betweenthe2terminals RestartoperationafterreplacethePCB Restartoperationafterconnecting theconnectortoPCB Replacethispartasitisthedefectiveof theLiquidPipeTemperaturesens...

Page 101: ...romthePCBandmeasure theresistancevaluebetweenthe2terminals RestartoperationafterreplacethePCB Restartoperationafterconnecting theconnectortoPCB Replacethispartasitisthedefectiveofthe OutdoorEVIInTempe...

Page 102: ...easurethe resistancevaluebetweenthe2terminals RestartoperationafterreplacethePCB Restartoperationafterconnecting theconnectortoPCB Replacethispartasitisthedefectiveofthe OutdoorEVIOutTemperaturesensor...

Page 103: ...and measure the resistance value between the two terminals Restart operation after changing PCB Restart operation after connecting the connector to PCB Change this part as it is the fault of the outd...

Page 104: ...spection Replacerelevantcomponent motororfan Yes Yes Yes No Yes Areallservicevalvesopen ConnectS netandManifoldGauge essentialrequirement No No No Yes No 1 Cause of problem Outdoor unit display Indoor...

Page 105: ...component Yes Yes Yes No Areallservicevalvesopen ConnectS netandManifoldGauge essentialrequirement No No No Yes Yes 1 Cause of problem No Outdoor unit display Indoor unit display Operation Timer Crite...

Page 106: ...he compressor Refer to the solution method for the liquid compression prevention error E477 Re connect and check the connector Yes Yes Yes No No Re attach and check sensor Check by referring to the ot...

Page 107: ...nt ReplaceCompressorDischarge Temperaturesensor OpentheServiceValve ChecktherelevantEEV Pipeinspection ConnectS netandManifoldGauge essentialrequirement No No No Yes Yes Yes Yes No Outdoor unit displa...

Page 108: ...e ReplaceFuse iftherectifierdiodeoftheinverter PCBisnormal Connectionandthenrestartit DidtheReactor ConnectionTerminalisconnected properly DidtheEMIPCBFuseisshort IsEMIPCBCN21 connectorandInverterPCBa...

Page 109: ...efrigerant Yes Yes No IstheS netestimatedvalueandthe ManifoldGaugevalueinrange ConnectS netandManifoldGauge essentialrequirement No No No No Outdoor unit display Indoor unit display Operation Timer Cr...

Page 110: ...V ChecktheEVIEEVleakage Yes Indoor EEV leakage can be easily checked during the operation of cooling operation and during the not go end blast operation In case it is normal the EVA In and Out tempera...

Page 111: ...2G 1 Inspection method Did the high low pressure connector get disconnected from the PCB Out of the PCB high pressure sensor terminals is there voltage between pins 3 and 4 5V Replace high low pressur...

Page 112: ...air with View Mode or S net and if the actual outdoor temperature is different please replace the temperature sensor Outdoor unit display prohibit heating operation in outdoor temperature over 30 C p...

Page 113: ...ndcheckconnector No No Yes Yes Supplementorrechargetherefrigerant Outdoor unit display Indoorunit display Operation Reservation Blast Filter Defrost Judgment Method Operation should be forbidden if Hi...

Page 114: ...en display E445 Outdoor Unit Display Indoor Unit Display Judgment Method Refer to the judgment method below Special Cause CCH Connector PCB is not connected Sump sensor compressor separated Own proble...

Page 115: ...W or S W Cause of problem Compressor connection error Defective Compressor Defective PCB PowerOffandthenRestart ReplaceFanPCB Yes Istheresistance valuebetweendifferentphasesof anMotor U V V W W U less...

Page 116: ...Fandorotatebyhand ReplaceFanMotor No No Ifyourotatethefanbyhand thenoiseoccurs ReplaceFanMotor Yes Yes Connectionwireof FanMotordidconfirmation Checktheconnectionstatusof theFan1andFan2 Checktheconnec...

Page 117: ...Indoor unit display Operation Timer Criteria Momentary stop of compressor due to momentary blackout Cause of problem Momentary stop of compressor due to momentary blackout 4 4 69 Momentary Blackout er...

Page 118: ...ionis detached Checktheconnectingwireandrestartit No Yes Isthereanythingstrangein appearanceFanMotor ReplaceFanPCB No 1 Cause of problem Outdoor unit display FAN PCB FAN1 FAN PCB FAN2 Indoor unit disp...

Page 119: ...r the fan connector normal Re connect connector Is connection for fan power condenser normal Complete Is the motor operating condition normal after changing PBA Change motor Outdoor unit display Indoo...

Page 120: ...Yes Istheboltoftheheatsinkfullytightened TightenBolt No Yes Didchecktheforeignobjectsbetween theheatsinkandIPM No 1 Cause of problem Complete Removeforeignobjectsand applytheheatsinkgrease Andthenrea...

Page 121: ...w to check 1 It is a signal to protect a motor by checking the operational condition of the outdoor unit s fan motor without power so as not to operate it in counter clockwise condition 2 Check if the...

Page 122: ...er the same as the CT sensor value Test Operation Inspection Complete Change CT sensor Change CT sensor Change CT sensor Breakdown of Compressor Change compressor Connect a separate ammeter optional N...

Page 123: ...ctive PCB PowerOffandthenRestart Continue Yes IsHotGasBypassValvestartup theinitialpowerisapplied HubReplacePCB No Yes HotGasBypassValveinitial startupdoesitwork ReplaceHotGasBypassValve No Yes Isther...

Page 124: ...Istheoutdoorunitinstalledproperly Removetheobstaclesandcheck thestatusoftheinstallation No Yes Istemperature sensorlocationandthemeasurement valuenormally PowerOff andthenreplacement orcorrectionofthe...

Page 125: ...rt DC Link Overvoltage Low voltage occurs Cause of problem Check the input wiring EMI Fuse short PowerOff Yes Yes 380Visthevoltage betweenterminalblocks R S Twire PowerR S T Nwirevoltagecheckandrestar...

Page 126: ...ower wiring error Momentary Overvoltage Low voltage occurs PCB voltage sensing circuit defective PowerOff Yes IsPowerconnectionaccuratelyconnected PowerCablere connection No Yes IsReactoraccuratelycon...

Page 127: ...ange the discharge valve leakage Re check the sensor connection attachment No Normal Normals Yes Breakdown Breakdown Resolve the relevant EEV problem Resolve the relevant valve problem Outdoor Unit Di...

Page 128: ...tive PCB Connector error Defective Motor 1 Cause of problem FANReplacePCB Reinstallafterremovingobstacle No Yes Yes Istheoutdoorunitinstalledproperly OutdoorFanMotor No Yes Istheresistancevalue betwee...

Page 129: ...OUTDOOR FAN PCB FAN1 Output Current sensor OUTDOOR FAN PCB FAN2 Output Current sensor Judgment Method Sensor Output detection Judged as an error if the detected value is more than 2 8V or 0 2V less t...

Page 130: ...lay Judgment Method N phase wiring error and EMI Fuse short DC Link Overvoltage Low voltage occurs Cause of problem Check the input wiring EMI Fuse short PowerOff Yes IsInverterPCBCN15 andFanPCBCN11DC...

Page 131: ...Checktheconnectingwireandrestartit No Yes HALLIConthePCBisconnectedcorrectly PowerOff PowerRestart Outdoor Unit Display FAN PCB FAN1 FAN PCB FAN2 Indoor Unit Display Judgment Method Connection status...

Page 132: ...0 4000 2 03 40 3000 1 80 50 2000 1 47 60 1600 1 29 70 1200 1 07 80 750 0 76 90 650 0 68 Complete Yes Yes Yes Applytheheatsinkgreaseandthenreassembly No Didproperlyapplytheheatsinkgrease Betweentheheat...

Page 133: ...July 2011 if the software version of the indoor unit Cause of problem Check the software version of the indoor unit Check whether the support of the indoor unit PowerOn Yes Yes Doesconnected indoorun...

Page 134: ...any rust on the surface of the coil of an electronic expansion valve with the naked eye and then check the resistance between each terminal to find any wire breaking or short circuit 4 Press the RESE...

Page 135: ...body 3 Check if there is any rust on the surface of the coil of an electronic expansion valve with the naked eye and then check the resistance between each terminal to find any wire breaking or short...

Page 136: ...tion Method Is the electronic expansion valve wire connected to the PCB After measuring the coil terminal resistance is there a disconnection or short circuit inside the coil Is the electronic expansi...

Page 137: ...where error occurred 1 Inspection Method Is the electronic expansion valve wire connected to the PCB After measuring the coil terminal resistance is there a disconnection or short circuit inside the...

Page 138: ...romthePCBand measuretheresistancevaluebetween the2terminals Didtheresistancevaluesignificantly strayfromthefollowing temperaturetable RestartoperationafterreplacethePCB Replacethispartasitisthedefecti...

Page 139: ...romthePCBand measuretheresistancevaluebetween the2terminals Didtheresistancevaluesignificantly strayfromthefollowingtemperaturetable RestartoperationafterreplacethePCB Replacethispartasitisthedefectiv...

Page 140: ...tancevaluebetween the2terminals Didtheresistancevaluesignificantly strayfromthefollowingtemperaturetable RestartoperationafterreplacethePCB Replacethispartasitisthedefectiveof WaterTankTemperatureSens...

Page 141: ...heEVAIn Outtemperature IsEVAIn Outtemperature maintainbelowzero CheckthecontrolstatusofEEV ChecktheEVAIn Outtemperaturesensor ChecktheWaterIntemperature Yes No Yes No No Yes 4 4 93 Emergency Error Che...

Page 142: ...temperature maintainbelowzero CheckthecontrolstatusofEEV ChecktheEVAIn Outtemperaturesensor ChecktheWaterIntemperature Yes No Yes No No Yes 4 4 94 Error to prevention from freezing and bursting of Hea...

Page 143: ...geofWaterOut Complete ChecktheoperateabnormallyofOutdoorUnit Checktherefrigerantclogging Sensordefective Replacesensor Reconnectthesensorand reinstallthesensorholder Temperature Resistance K Yes No Ye...

Page 144: ...atleasttherecommendedflow Checkthepipingsystemofcirculationwater Pumpoperation Strainerclogging ReplacePCBandthenrestartit Yes No Yes Yes No No 4 4 96 Breakaway of Flow switch Indoor unit display Caus...

Page 145: ...ingwiringhasbeen duplicatestoeachThermostat Cooling Heating 19 20 21 22 C N H N 230V Themostat Cooling Heating Yes No 4 4 97 Thermostat Wiring Error Indoor unit display Cause of problem Thermostat wir...

Page 146: ...ol kit PBA defective Criteria Refer to the judgment method below Outdoor unit display XXX xxx Address of Indoor Unit that error occurred 4 4 98 DC FAN Motor Feedback Error 1 Inspection Method ReplaceD...

Page 147: ...r unit display XXX xxx Address of Indoor Unit that error occurred 4 4 99 Water Tank Sensor defective 1 Inspection Method Replace the indoor PCB instal l option reset No Yes Yes istheseries5optionsetpr...

Page 148: ...t 5 1 1 Wind free 4way cassette type mini 4way cassette Main PBA AM045 056 071 090 112 128 140NN4DEH AM015 022 028 036 045 056 060NNNDEH AM009 012 018 024 036 048NN4DCH AM005 007 009 012 018 020NNNDCH...

Page 149: ...HARGE TEMPERATURE SNESOR 6 GND 1 GND 3 DC5V 4 EEPROM_SELECT 5 EEPROM_SO 6 EEPROM_SI 7 EEPROM_CLK 1 DC12V 2 5 LOUVER CHECK 1 F S SIGNAL 2 GND 1 D P POWER DC12V 2 GND 1 DC12V 2 VENT CONTROL SIGNAL 1 4 E...

Page 150: ...LED_Filter 7 8 Remocon Signal Out 9 Panel Select 10 Remocon signal In 11 GND 12 DC5V 13 CN01 DISPLAY Wind free 4way cassette type mini 4way cassette Cont Display PBA AM045 056 071 090 112 128 140NN4D...

Page 151: ...s only to the indoor unit 2 Symbols show as follow BLK black RED red BLU blue WHT white YEL yellow BRN brown SKY sky blue GRN green 3 For connection wiring indoor outdoor transmissioin F1 F2 indoor wi...

Page 152: ...FLOOR MOUNTING P FAC V RAC A3050 EEV Q RAC ANEO FORTE EEV T RAC NEO FORTE EEV D RAC DOMESTIC R RAC MALDIVE A RAC A3050 7 RAC Crystal U AIR HANDING UNIT Z AIR HANDING UNIT WITH FRESH Y HYDRO UNIT wall...

Page 153: ...ay CST 1N Middle size 1 way 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 Mode N New Communication Color...

Page 154: ...e and 122 means that the low pressure is 12 2kg cm2 g 4 If the low pressure goes below around 2kg cm2 g then immediately close the SVC valve for the gas and finish the pump down operation Finish the p...

Page 155: ...he refrigerant container valve so that the refrigerant flows from the liquid pipe to the refrigerant container 6 Check the changes in the weight of the container using the scale Once the desired amoun...

Page 156: ...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 FEBRUARY 2018 Printed in Korea...

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