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Samsung AM040KXMDEH/EU, Service Manual

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Troubleshooting

Samsung Electronics

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Open the valve

Yes

Re-connect the sensor connector

No

No

Is the EVA sensor correctly connected?

Yes

Charge the refrigerant

No

Is the refrigerant charged?

Replace the INVERTER PCB.

Cont.

Yes

Yes

Is the service valve completely open?

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Summary of Contents for AM040KXMDEH/EU

Page 1: ...OUTDOORUNIT 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 KEY OPTION 8 Auto Commissioning Management System Amount of Refrigera...

Page 2: ...hloride coated outdoor unit heat exchanger Anti corrosion erosion G Fin provide stable heat exchanging performanceation High e cient propeller fan Reduced noise on outdoor unit Improved heat exchange...

Page 3: ...m efficssiency and minimized noise from the refrigerant in the indoor unit Turbo Inter cooler High performing shell tube type heat exchanger has been applied to secure cooling heating efficiency It ha...

Page 4: ...di erence between indoor units 15m High level di erence 50m Longpiping 175m Equivalentlength 1 1 1 Feature cont Q Reinforced corrosion resistance on the heat exchanger To prevent corrosion of the pro...

Page 5: ...compressor that applies double compression technology If outdoor unit malfunction occurs diagnose and repair of the problem will be much quicker with the last 3 minutes worth of a data saved before th...

Page 6: ...he pipes Conventional 1 270mm 135kg 998mm 76kg Indoorunit malfunction Based on 5HP model Refrigerant recoveringsss 1 1 1 Feature cont Q Reduced size and light weight Compare to conventional models siz...

Page 7: ...pressure of system Outdoor temperature Discharge temperature of the compressor Condensing temperature Using the DIP switch on the outdoor unit PCB you can limit the running current of the system Q Max...

Page 8: ...h 9kW or larger Flare type connection 1 1 1 Feature cont Q Convenient product installation Service valve is not exposed to keep the neat appearance and pipe can be connected in 4 different directions...

Page 9: ...Gas mm 15 88 15 88 Cable Main Power Below about 20m mm 4 H07RN 4 H07RN Communication mm VCTF0 75 1 5 2P VCTF0 75 1 5 2P Product size Net weight kg 940 x 998 x 330 940 x 998 x 330 ShippingWeight kg 100...

Page 10: ...kW 12 1 14 0 Kcal h 41 287 47 770 Heating kW 12 1 14 0 Kcal h 41 287 47 770 10 C Heating kW Power Operating current Cooling A 17 5 19 5 Heating A 14 0 16 5 Power consumption Cooling kW 3 6 4 0 Heating...

Page 11: ...Screw Driver Monkey Spanner Screw Driver Nipper Electric Motion Driver L Wrench Disassembly and reassembly of DVM MINI Refer to the product of the same structure This chapter only the product which is...

Page 12: ...1 Remove the 2 mounting screw in the Cabinet Front RH and separate it Use Screw Driver 2 Cabi Top 1 Remove the 9 screws on each side of the Cabinet Top and separate it Use Screw Driver 3 Cabi Install...

Page 13: ...edure Remark 4 Outdoor Unit Guard 1 Pull the sensor from Outdoor Unit Guard 2 Remove the 4 screws in the Outdoor Unit Guard and separate it Use Screw Driver 5 Cabi Back RH 1 Remove the 4 screws on eac...

Page 14: ...Electronics No Parts Procedure Remark 6 Cabi Install Back 1 Remove the 1 screw in the Cabinet Install Back and separate it Use Screw Driver 7 Cabi Front LF 1 Remove the 10 screws in the Cabinet Front...

Page 15: ...Disassembly and Reassembly Samsung Electronics 15 No Parts Procedure Remark 8 Fan 1 Turn 2 mounting nuts as shown in the picture and remove it Use L Wrench or Monkey Spanner or Socket Wrench...

Page 16: ...the Fan Propeller 2 Remove the 8 Motor mounting screws and separate it Use Screw Driver 3 Disconnect the Motor wire from Assy Control Out Motor connection part Can be different according to model 10...

Page 17: ...emark 11 Control Out 1 Disconnect 4 Connectors from Assy Control Out Number of connectors that can be disconnected may different depending on the model From 4 8 2 Remove the 1 mounting screw in Contro...

Page 18: ...ure Remark 12 ASS Y TUBE VALVE 1 Priority refrigerant remove 2 Using welding machine with picture 5 places of a pipe disjoint When remove Compressor Heat Exchanger a pipe remove perfectly refrigerant...

Page 19: ...ark 13 Compressor 1 Fixed 1 screw of cover end part remove Use Hexagonal Wrench or Monkey Spanner or Hexagonal Socket 2 Remove the Compressor felt 3 Like picture remove the 3 screws fixed on bottom an...

Page 20: ...Disassembly and Reassembly 20 Samsung Electronics No Parts Procedure Remark 14 Assy Cond Out 1 Remove the 3 screws that is fixing each side of Assy Cond Out and separate it Use Screw Driver...

Page 21: ...Troubleshooting Samsung Electronics 21 AM040 050KXMDEH6 AM040 050KXMDCH6 ERROR DISPLAY 4 Troubleshooting 4 1 Error Display...

Page 22: ...ontrol 14 E410 Compressor stop by low pressure protection control 15 E416 Compressor stop by discharge temperature protection control 16 E419 EEV open error 17 E425 Reverse phase detection error 18 E4...

Page 23: ...lem find an indoor unit that hampers communication by making a connection to each unit and replace the indoor unit PCB after checking out lines At that time is the power between the 2 lines a squire w...

Page 24: ...r unit to indoor units then remove all communication connectors on the indoor unit PCB then find an indoor unit that hampers communication by making a connection to each unit and replace indoor unit P...

Page 25: ...r unit inverter or main PBA 1 If the 7 segment on the outdoor unit main PBA shows E203 error change the PBA o outdoor unit main PBA is normal 2 When the LED on the outdoor unit inverter is shown as fo...

Page 26: ...by OLP Sensor Discharge sensor E320 E251 Current Temp C Resistance k Current Temp C Resistance k 70 4 20 10 60 5 10 20 50 6 0 30 40 7 10 40 30 8 Current Temp C Resistance k Current Temp C Resistance...

Page 27: ...ORT error will occur if the input voltage standard exceeds 0 5V 4 95V range 2 How to check Replace high middle low pressure sensor Please re inspect after connecting the connector to the PCB No Yes Di...

Page 28: ...ck the indoor heat exchanger IN OUT sensor 4 Check if the indoor air inlet blocked 2 How to check Is the indoor fan motor working properly Is the sensor on indoor heat exchanger shows the temperature...

Page 29: ...and Manifold gauge correspond Does indoor outdoor EEV operate well Is there any clogged place in the piping ex filter Check the amount of refrigerant Test operation Open the service valve Replace hig...

Page 30: ...lace in the piping ex filter Check the amount of refrigerant Is there any leakage in liquid pipe valve or discharge check valve of the stop side outdoor unit when several outdoor units are in operatio...

Page 31: ...ce of the compressor normal refer to E251 Test operation Are service valves open Does indoor outdoor EEV operate well Is there any clogged place in the piping ex filter Replace discharge temperature s...

Page 32: ...ill display E425 and the air conditioner will stop operating 1 Check the voltage on L1 R L2 S phase L1 R L3 T phase L2 S L3 T phase 2 When there is any terminal that does not have normal voltage check...

Page 33: ...e with excessive refrigerant amount then the DSH may descend 1 How to check Check the amount of refrigerant No Check and connect the connector Is the ESC EEV connector correctly connected to the PBA Y...

Page 34: ...sensors are exceeded 3 Will occur if the measured value of both high low pressure sensors is 1kgf cm G 2 How to check Replace the high low pressure sensor Replace the high low pressure sensor No Yes D...

Page 35: ...a condition that does not belong to any of the above diagnosis methods read the temperature sensor value of the outdoor inlet air with View Mode or S net and if the actual outdoor temperature is diff...

Page 36: ...Vdc fan control voltage 16Vdc 3 Is the fan command control normal Normal 2Vdc fan command voltage 5Vdc Turn off the power before inspection Turn on the power and check if everything is normal o end se...

Page 37: ...n Are service valves open Do the values of S net and Manifold gauge correspond Does indoor outdoor EEV operate well Is there any clogged place in the piping ex filter Change the OLP sensor Open the se...

Page 38: ...ressor When the resistance value between phases of the compressor is different o Turn the power on o Check for normal operation o End service 2 Reassemble wire When the wire connection of the compress...

Page 39: ...compressor wire housing firmly assembled 3 Is there any problem such as disconnected housing or cut on some of the compressor wire Yes Yes Cont Change the outdoor unit PBA and check for normal operat...

Page 40: ...eration o End service 1 Check for wire disconnection related to outdoor unit inverter PBA 2 Remove the obstacles on outdoor unit air inlet and secure enough space 3 Remove the obstacles on outdoor uni...

Page 41: ...environment o Check for normal operation o End service 1 Check for wire disconnection related to outdoor unit inverter PBA 2 Remove the obstacles on outdoor unit air inlet and secure enough space Che...

Page 42: ...on o Check for normal operation o End service 2 Reassemble wire When the wire connection of the compressor is wrong o Turn the power on o Check for normal operation o End service 3 Change the compress...

Page 43: ...following color U RED V BLU W YEL o Check for wire disconnection on PBA and COMP 2 Is the terminal within the compressor wire housing firmly assembled 3 Is there any problem such as disconnected hous...

Page 44: ...y 2 Check procedure Yes Re connect the power cable No Is the power cable connected properly 1 Correctly connect the wire between the reactor l outdoor unit inverter PBA o Check for normal operation o...

Page 45: ...rmal operation o End service Replace the fuse Yes Yes No Change the outdoor unit inverter PBA and check for normal operation o End service Check the terminal block and the power terminal cabinet 1 Is...

Page 46: ...Does error occur again 1 Change the compressor When the resistance value between phases of the compressor is different o Turn the power on o Check for normal operation o End service 2 Reassemble wire...

Page 47: ...or Error Code E554 cont Open the valve Yes Re connect the sensor connector No No Is the EVA sensor correctly connected Yes Charge the refrigerant No Is the refrigerant charged Replace the INVERTER PCB...

Page 48: ...not normal DC LINK VOLTAGE 280 320V Check the value of DC link when error occurs and check the reactor disconnection 5 Heat sink temperature error E474 E500 Error occurs when heat sink of the inverter...

Page 49: ...PCB Diagram MAIN PCB AM040 050KXMDEH6 AM040 050KXMDCH6 5 PCB Diagram 5 1 Outdoor Unit PCB...

Page 50: ...DC 12V CN806 E2P MODULE CN002 HIGH P S W CN803 EEV 2 CN001 Flow S W 1 INPUT 2 GND 1 4 EEV signal 5 DC 12V 1 INPUT 2 GND CN804 EEV 3 CN406 CN805 EEV 4 CN801 EXTERNALCONTROL OUT 1 4 EEV signal 5 DC 12V...

Page 51: ...RO 3 8 N C 4 7 DATA signal 9 GND 10 DC 5V For S W engineer debugging 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 COMP U ph...

Page 52: ...ATARO 3 8 N C 4 7 DATA signal 9 GND 10 DC 5V For S W engineer debugging 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 COMP U...

Page 53: ...PCB Diagram EMIPCB 1Phase L1 BRN N1 SKY BLU 1 3 AC 220 240V L1 AC POWER L phase N1 AC POWER N phase CN01 AC POWER...

Page 54: ...Wiring Diagram This Document can not be used without Samsung s authorization 6 Wiring Diagram 6 1 1Phase AM040 050KXMDEH6 AM040 050KXMDCH6...

Page 55: ...Key Operation Reset View Mode K1 K2 K3 K4 Dip S W Select snowdrift protection Select cooling target and evaporation temperature Select cooling target and evaporation temperature K5 K6 K7 K8 Silent ni...

Page 56: ...times Finish K3 Reset AM66666M666series RD666M6666series K4DisplayOrder K4 DisplayDetails DisplayValue Ex Meaning SEG1 SEG2 3 4 1time Operatingfrequencyofcurrentcompressor 1 0 4 2 42Hz 2times Lowpress...

Page 57: ...ionControl CommontoAllModels When the snowdrift protection control function is set to ON the outdoor fan operates once for a minute every 30 minutes when the air conditioner is running under 5 K7 K8 S...

Page 58: ...ed when changing the option to LOW When lowering the temperature of defrosting operation it has the advantage of lower operation time However since it lengthens the operation time after being frozen t...

Page 59: ...isplayedontheLEDafter communicationcheckandthecompressorisprohibitedfromrunninginnormaloperation TheUPmodeisautomaticallyclearedalongwiththeterminationofAutoCommissioning ManagementSystemoperation The...

Page 60: ...uidlinetemperaturesensor Highpressuresensor lowpressuresensorandintermediatepressuresensorofoutdoorunit Determinetheoperatingcurrentofoutdoorunitcompressor Determinethecyclestateofoutdoorunit Determin...

Page 61: ...pleasetrytorunthe AutoCommissioning ManagementSystemonehourafteranAutoCommissioning ManagementSystemoperation Atthistime pleasekeepthevacuummodeforfiveminutes Afterresolvingtheproblemof CheckRequired...

Page 62: ...operation please try to run the Auto Commissioning Management System one hour after the last stop time of system operation No Waitingformorethanonehour Does thedi erenceinbetween thetemperaturesensors...

Page 63: ...gementSystemoperation pleasetrytomaintainthevacuummodeforfiveminutesormore No Check for problematic pressure sensor Outdoor UnitVacuum Mode Are the pressure sensor connectors connected properly Is the...

Page 64: ...er connectionofoutdoorunit normal CheckandTakeAction ReplaceinverterPCB ReplaceinverterPCB Adjusttherefrigerantlevel add remove Istheoperating currentofcompressor normal Replacecompressor Finish Isthe...

Page 65: ...agementSystem operation theindoorunithasmaintained theTHERMOONstate Isthesystemrefrigerantlevelappropriate Checkthevalve sensor andcompressor Checkthedischarge temperaturesensorandtakeaction assemblys...

Page 66: ...it WhenneedingtocheckthemainEEVofoutdoorunit pleasecheckinthefollowingorder IsthemainEEVconnector connectedproperly IsthemainEEVcoilnormal Resistance disconnection disabled etc IstheoutputsignalofPCBn...

Page 67: ...system in cooling mode for 30 or minutes in advance According to the installation environment the refrigerant level checking result may not be accurate when running the system in protection mode Acti...

Page 68: ...LTemp MODULE R RENEWAL GENERALTemp NONMODULE Mode C COOLINGONLY H HEATPUMP R HEATRECOVERY Version BASIC 1 VERSION Rating Voltage A A 115V 60hz 1 B B 220V 60Hz 1 C C 208 230V 60Hz D D 200 220V 50Hz E E...

Page 69: ...nder applicable International and or domestic law Samsung Electronics Co Ltd October 2016 Printed in Korea Code No AC 00170E_1 631 2 6 59 3 571 5 1 7 25 UHD HE 6LWH XURSH 6 0LGHDVW IULFD JVSQ VDPVXQJF...

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