Daikin AC Error Codes – Outdoor Unit Error Codes – How to fix?

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Daikin AC Error Codes – Outdoor Unit Error Codes – How to fix?
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Is your Daikin AC can show Error codes on either the inside unit or the outside unit. In this articlewe have broken down the error codes for each unit outside. These error codes will tell you what the issue is with your Daikin AC. Knowing the error code will assist you in finding the problem with your air conditioner and you can then fix it yourself. See below for ALL Daikin AC Error Codes – Outdoor Unit Error Codes

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 Daikin AC error code

Daikin AC Error Codes – Indoor Unit Error Codes

1/ Daikin AC Error Code = E0

– Error Code Definition = Protection devices activated

– What To Fix/Check/Replace = Protection device connected to outdoor unit PCB actuated Defective protection device connector contact

2/ Daikin AC Error Code = E1

– Error Code Definition = Defective outdoor unit PCB

– What To Fix/Check/Replace = Defective connection of inside/ outside relay wires

3/ Daikin AC Error Code = E3

– Error Code Definition = Actuation of high pressure switch

– What To Fix/Check/Replace = Dirty outdoor unit heat exchanger – Defective high pressure switch – Clogged refrigerant piping – Defective connector contact

4/ Daikin AC Error Code = E3

– Error Code Definition = Dirty outdoor unit heat exchanger

– What To Fix/Check/Replace = Actuation of high pressure switch – Shortage of water volume – Clogged refrigerant piping – Defective connector contact – Defective HPS

5/ Daikin AC Error Code = E4

– Error Code Definition = Actuation of low pressure switch (LPS) – Abnormally drop in low pressure

– What To Fix/Check/Replace = Defective low pressure sensor – Defective outdoor unit PCB – Defective connector contact

6/ Daikin AC Error Code = E5

– Error Code Definition = Inverter compressor motor or overheat – Inverter compressor lock – High differential pressure

– What To Fix/Check/Replace = Defective inverter PCB – UVW connection error – Defective connector contact

7/ Daikin AC Error Code = E6

– Error Code Definition = Compressor motor overcurrent lock – Defective compressor

– What To Fix/Check/Replace = Defective control PCB – The stop valve is not opened

8/ Daikin AC Error Code = E6

– Error Code Definition = Compressor overcurrent – Defective electronic expansion valve

– What To Fix/Check/Replace = Shortage of refrigerant amount – Defective compressor

9/ Daikin AC Error Code = E7

– Error Code Definition = Malfunction of outdoor unit fan motor system – Fan motor failure

– What To Fix/Check/Replace = Defective connection of harness connector between the fan motor and the PCB – Fan does not rotate due to jammed

10/ Daikin AC Error Code = E8

– Error Code Definition = Overcurrent of inverter compressor – Defective compressor

– What To Fix/Check/Replace = Defective inverter main circuit capacitor – Defect of outdoor unit PCB – Defect of power transistor

11/ Daikin AC Error Code = E9

– Error Code Definition = Malfunction of electronic expansion valve coil – Disconnection of connectors from electronic expansion valves

– What To Fix/Check/Replace = Defective electronic expansion valve coil – Defective outdoor unit control PCB

12/ Daikin AC Error Code = EA

– Error Code Definition = Malfunction of four way valve or cool/heat switch – Defective four way valve

– What To Fix/Check/Replace = Shortage of gas – Defective outdoor unit PCB – Defective thermistor

13/ Daikin AC Error Code = EC

– Error Code Definition = Malfunction of entering water temperature – Cooling water temperature abnormality

– What To Fix/Check/Replace = Defective outdoor unit PCB Defective thermistor

14/ Daikin AC Error Code = F3

– Error Code Definition = Malfunction of discharge pipe temperature – Defective discharge pipe thermistor – Abnormal discharge pipe temperature

– What To Fix/Check/Replace = Defective outdoor unit control PCB – Defective connector contact

15/ Daikin AC Error Code = F6

– Error Code Definition = Abnormal high pressure or refrigerant overcharged

– What To Fix/Check/Replace = Refrigerant overcharged – Disconnection of heat exchanger thermistor – Disconnection of outdoor air thermistor – Disconnection of liquid pipe temperature thermistor – Defective outdoor unit PCB

16/ Daikin AC Error Code = H0

– Error Code Definition = Malfunction of sensor system of compressor

– What To Fix/Check/Replace = Harness is disconnected – Defective connection – Defective PCB

17/ Daikin AC Error Code = H1

– Error Code Definition = Malfunction of room temperature sensor or humidifier unit damper

– What To Fix/Check/Replace = Defective limit switch Defective damper

18/ Daikin AC Error Code = H3

– Error Code Definition = Malfunction of high pressure switch – Defective high pressure switch Broken wire

– What To Fix/Check/Replace = Defective outdoor unit PCB – Defective connector contact

19/ Daikin AC Error Code = H4

– Error Code Definition = Malfunction of low pressure switch – Defective low pressure switch

– What To Fix/Check/Replace = Broken wire – Defective outdoor unit PCB – Defective connector contact

20/ Daikin AC Error Code = H5

– Error Code Definition = Malfunction of compressor motor overload thermistor

– What To Fix/Check/Replace = Defect of compressor motor overload thermistor – Defective connector contact

21/ Daikin AC Error Code = H6

– Error Code Definition = Malfunction of position detection sensor

– What To Fix/Check/Replace = Faulty contact of compress or cable – Defective compressor – Defective outdoor unit PCB

22/ Daikin AC Error Code = H7

– Error Code Definition = Malfunction of outdoor unit fan motor signal – Abnormal signal from fan motor

– What To Fix/Check/Replace = Circuit failure – Disconnection Short circuit in fan motor leads – Disconnection of connector – Defective inverter PCB

23/ Daikin AC Error Code = H8

– Error Code Definition = Malfunction of compressor input system

– What To Fix/Check/Replace = Defective power transistor – Defective reactor – Faulty wiring of inverter system – Defective outdoor unit PCB

24/ Daikin AC Error Code = H9

– Error Code Definition = Malfunction of outdoor air thermistor

– What To Fix/Check/Replace = Defective connection of thermistor – Defective outdoor unit PCB – Defective outdoor air thermistor

25/ Daikin AC Error Code = HC

– Error Code Definition = Malfunction of water temperature thermistor

– What To Fix/Check/Replace = Defective connection of thermistor – Defective outdoor unit PCB – Defective water temperature thermistor

26/ Daikin AC Error Code = HF

– Error Code Definition = Alarm in thermal storage unit or storage controller – Thermal storage group defective wiring

– What To Fix/Check/Replace = Defective setting – Excess of thermal storage tank numbers

27/ Daikin AC Error Code = HJ

– Error Code Definition = Malfunction of thermal storage tank water level – Low water level

– What To Fix/Check/Replace = Defective switch setting – Water level detecting sensor failure – Defective connector contact

28/ Daikin AC Error Code = J1

– Error Code Definition = Malfunction of pressure sensor

– What To Fix/Check/Replace = Defective pressure sensor connector contact – Defective pressure sensor – Defective outdoor unit PCB

29/ Daikin AC Error Code = J2

– Error Code Definition = Malfunction of current sensor of compressor

– What To Fix/Check/Replace = Defective current sensor – Defective compressor – Defective outdoor unit PCB

30/ Daikin AC Error Code = J3

– Error Code Definition = Malfunction of discharge pipe thermistor

– What To Fix/Check/Replace = Defective connection of thermistor – Defective discharge pipe thermistor – Defective outdoor unit PCB

31/ Daikin AC Error Code = J4

– Error Code Definition = Malfunction of low pressure equivalent saturated temperature sensor system

– What To Fix/Check/Replace = Defective connection of thermistor – Defective thermistor – Defective outdoor unit PCB

32/ Daikin AC Error Code = J5

– Error Code Definition = Malfunction of suction pipe thermistor

– What To Fix/Check/Replace = Defective connection of thermistor – Defective suction pipe thermistor – Defective outdoor unit PCB

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33/ Daikin AC Error Code = J6

– Error Code Definition = Malfunction of heat exchanger thermistor

– What To Fix/Check/Replace = Defective connection of thermistor – Defective heat exchanger thermistor – Defective outdoor unit PCB

34/ Daikin AC Error Code = J7

– Error Code Definition = Malfunction of thermistor (Refrigerant circuit)

– What To Fix/Check/Replace = Defective connection of thermistor – Defective liquid pipe thermistor – Defective outdoor unit PCB

35/ Daikin AC Error Code = J8

– Error Code Definition = Malfunction of thermistor (Refrigerant circuit)

– What To Fix/Check/Replace = Defective connection of thermistor – Defective liquid pipe thermistor – Defective outdoor unit PCB

36/ Daikin AC Error Code = J9

– Error Code Definition = Malfunction of thermistor (Refrigerant circuit)

– What To Fix/Check/Replace = Defective connection of thermistor – Defective gas pipe thermistor – Defective outdoor unit PCB

37/ Daikin AC Error Code = JA

– Error Code Definition = Malfunction of high pressure sensor

– What To Fix/Check/Replace = Defective connector contact – Connection of low pressure sensor in mistake for high pressure sensor – Defective high pressure sensor – Defective outdoor unit PCB

38/ Daikin AC Error Code = JC

– Error Code Definition = Malfunction of low pressure sensor

– What To Fix/Check/Replace = Defective connector contact – Connection of high pressure sensor in mistake for low pressure sensor – Defective low pressure sensor – Defective outdoor unit PCB

39/ Daikin AC Error Code = JE

– Error Code Definition = Malfunction of oil pressure sensor or sub-tank thermistor

– What To Fix/Check/Replace = Defective connector contact – Defective sub tank thermistor – Defective outdoor unit PCB

40/ Daikin AC Error Code = JF

– Error Code Definition = Malfunction of oil level sensor or heating heat exchanger thermistor

– What To Fix/Check/Replace = Defective connector contact – Defective heat exchanger thermistor – Defective outdoor unit PCB

41/ Daikin AC Error Code = L0

– Error Code Definition = Malfunction of inverter system

– What To Fix/Check/Replace = Shortage of power supply capacity – Defective power transistor – Defective outdoor unit PCB

42/ Daikin AC Error Code = L1

– Error Code Definition = Malfunction of inverter PCB

– What To Fix/Check/Replace = Defective compressor wiring – Defective outdoor unit fan motor – Blown fuse – Defective inverter PCB

43/ Daikin AC Error Code = Daikin AC Error Code = L3

– Error Code Definition = Temperature rise due to short circuit

– What To Fix/Check/Replace = Defective outdoor unit fan motor – Defective power transistor – Defective outdoor unit PCB

44/ Daikin AC Error Code = L4

– Error Code Definition = Malfunction of inverter

– What To Fix/Check/Replace = Short circuit thermistor

45/ Daikin AC Error Code = L5

– Error Code Definition = Inverter overcurrent (DC output)

– What To Fix/Check/Replace = Defective compressor coil – Compressor startup failure – Defective inverter PCB

46/ Daikin AC Error Code = L6

– Error Code Definition = Inverter instantaneous overcurrent (AC output)

– What To Fix/Check/Replace = Overcharge of refrigerant amount – Shortage of power supply capacity – Defective compressor Defective inverter unit

47/ Daikin AC Error Code = L8

– Error Code Definition = Malfunction of overcurrent inverter compressor – Compressor overloaded

– What To Fix/Check/Replace = Wiring disconnection in compressor coil – Disconnection of compressor wiring – Defective inverter PCB

48/ Daikin AC Error Code = L9

– Error Code Definition = Malfunction of inverter compressor startup error – The stop valve is not opened

– What To Fix/Check/Replace = Defective compressor – Error in wire connections to compressor – Large differential pressure before compressor startup Defective inverter PCB

49/ Daikin AC Error Code = LA

– Error Code Definition = Malfunction of power transistor

– What To Fix/Check/Replace = Defective power transistor – Defective compressor – Defective inverter PCB

50/ Daikin AC Error Code = LC

– Error Code Definition = Malfunction of transmission between control and inverter PCB

– What To Fix/Check/Replace = Defective connection between the inverter PCB and the control PCB – Defective inverter compressor – Defective control PCB

51/ Daikin AC Error Code = M1

– Error Code Definition = Malfunction of central remote controller PCB

– What To Fix/Check/Replace = Defective central remote controller PCB

52/ Daikin AC Error Code = M8

– Error Code Definition = Malfunction of transmission between optional controllers for centralized control – Centralized control power disconnection

– What To Fix/Check/Replace = Centralized control reset switch ON – Defective transmission wiring – Central remote controller change

53/ Daikin AC Error Code = MA

– Error Code Definition = Improper combination of optional controllers for centralized control – Improper combination of optional controllers for centralized control

– What To Fix/Check/Replace = More than one master controller is connected – Faulty setting of centralized control – Defect of centralized control

54/ Daikin AC Error Code = MC

– Error Code Definition = Address duplication

– What To Fix/Check/Replace = Improper setting – Address duplication of central remote controller

55/ Daikin AC Error Code = P0

– Error Code Definition = Shortage of refrigerant amount – Shortage of refrigerant

– What To Fix/Check/Replace = Clogged refrigerant piping

56/ Daikin AC Error Code = P1

– Error Code Definition = Power voltage imbalance or inverter PCB – Open phase

– What To Fix/Check/Replace = Interphase voltage imbalance – Defective capacitor in the main circuit – Defective wiring in the main circuit – Defective inverter PCB

57/ Daikin AC Error Code = P2

– Error Code Definition = Automatic refrigerant charge operation stop

– What To Fix/Check/Replace = The stop valve is not opened Closed valve of refrigerant tank

58/ Daikin AC Error Code = Daikin AC Error Code = P3

– Error Code Definition = Malfunction of thermistor in switch box

– What To Fix/Check/Replace = Defective connection of thermistor – Defective reactor thermistor – Defective inverter PCB

59/ Daikin AC Error Code = P4

– Error Code Definition = Malfunction of temperature sensor

– What To Fix/Check/Replace = Defective temperature thermistor – Defective inverter PCB – Defective compressor – Defective fan motor

60/ Daikin AC Error Code = P8

– Error Code Definition = Heat exchanger freezing protection during automatic refrigerant charging

– What To Fix/Check/Replace = Close refrigerant cylinder

61/ Daikin AC Error Code = P9

– Error Code Definition = Malfunction of fan motor humidifier unit

– What To Fix/Check/Replace = Defective fan motor – Defective outdoor unit PCB – Broken relay harness – Defective connector contact

62/ Daikin AC Error Code = PA

– Error Code Definition = Broken wire of heater (humidifier unit)

– What To Fix/Check/Replace = Defective heater unit – Defective thermistor – Defective outdoor unit PCB

63/ Daikin AC Error Code = PH

– Error Code Definition = Refrigerant cylinder during automatic refrigerant charging

– What To Fix/Check/Replace = Defective heater unit – Defective connector contact – Defective thermistor – Defective outdoor unit PCB

64/ Daikin AC Error Code = PJ

– Error Code Definition = Malfunction of capacity setting – Capacity setting adaptor is not installed

– What To Fix/Check/Replace = Improper capacity setting adaptor – Defective outdoor unit PCB


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