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Daikin air conditioner, refrigeration code table: How to check and diagnose


The way of checking and diagnosing with Daikin’s error code table below will help you to be able to proactively know the situation of the device’s problem. From there, there will be timely and quick solutions so as not to affect the efficiency and durability of the machine.

Daikin air conditioner

How to check and diagnose Daikin series SkyAir air conditioner (Ceiling and ceiling air conditioner) and VRV (Central air conditioner)

For wired remote control

Control line BRC1C62

  • If the device stops working due to a problem, the LED on the controller will blink and a problem code will be displayed.
  • Or even when the machine stops working, the problem code will be displayed when you perform the test as follows: Hold down ON / OFF for 4 seconds or more then the problem history will be deleted. The problem code will blink and the operating mode will change from test to normal.

Control BRC1E62

  • If the machine stops working due to a problem, the display on the controller will blink. The words “Error: Press Menu button” or “Error” appear.
  • You press the Menu / Enter button, then the error code will be displayed

For wireless remote control

If the machine stops working due to a problem, the operation LED on the light signal receiver unit will blink. To know the error code you do by the following:

1. Press the INSPECT / TEST button to select “test.”

2. The device will start test mode. The indicator light “Unit” and “Unit No” flashes the number “0”. Press the UP or DOWN button and change the number display of the indoor unit until a sound is heard from the indoor unit.

  • If there is a beep: Follow steps 3 and 4 below
  • If there are 3 beeps: Follow all steps below

3. Press the MODE button. The number “0” on the left (the first character) shows the flashing error code

4. Diagnose the first character of the problem code. Press the UP or DOWN button to change the first character of
The problem code comes when the call sounds:

  • Prolonged beep:: The beginning and end characters of the problem match. (Problem code is confirmed)
  • 2 short beeps: The first character has a matching problem
  • 1 short beep: The last character in the match

5. Press the MODE button. The number “0” on the right (the following character) displays the blinking problem code

6. Diagnose the following character of the problem code. Press the UP or DOWN button to change the characters to
when the cry came. The number of beeps is the same as step 4.

How to check and diagnose the RA series fault code Daikin (Civil conditioners)

ARC447A control

  • Control direction towards indoor unit simultaneously press and hold CANCEL button for 5 seconds
  • The temperature display on the remote control changes to an error code display and a long beep announces the change.
  • To clear the error code display, press and hold CANCEL for 5 seconds or they will automatically exit the mode if you do not execute the command within 1 minute.

Controls ARC455A, ARC452A, ARC433B, ARC423A, ARC417A

Method 1:

  • Hold down the “Cancel” button for 5 seconds, the code “00” will be displayed on the control screen at the temperature display position.
  • Repeat pressing the “Cancel” button repeatedly until a long beep
  • To clear the display of the problem code, hold down the “Cancel” button for 5 seconds. Or the problem code display will automatically exit the test mode after 1 minute if no button is pressed next.

Method 2:

1. Press 3 buttons (TEMP, TEMP, MODE) simultaneously to switch to the test mode.

2. Press the TEMP button up or down to change this number until you hear a “beep” or “pi
pi “.

  • 1 short beep: The number of tens does not correspond to the problem code.
  • 2 short beeps: The number of tens matches the problem code but the number of units does not.
  • 1 long beep: Both the tens and units are consistent with the problem code

3. Press the MODE button. The number of unit rows flashing.

4. Press the TEMP button up or down to change this number until you hear a long “beep”. Beeps are as meaningful as step 2.

5. Identify the problem code. The number shown when you hear a long “beep” is the problem code.

6. Press the MODE button to exit diagnostic mode. Display “7” is the test mode message

7. Press the ON / OFF button twice to return to normal mode.

Note: When not used for 60 seconds, the remote returns to normal mode.

Code table error of air conditioning, air conditioning Daikin Skyair series, VRV, RA most common

Daikin air conditioner error code table with outdoor unit

1. Error code E0

Error name: Activate protective equipment (uniform)

Cause: External protective device connected to outdoor unit is activated. Loose connection with external protective devices

2. Error code E1

Error name: Outboard board error

Cause of assumption: Outdoor circuit board is damaged. Wiring of internal / external relay faulty

3. Error code E3

Error name: Drive of high pressure switch (HPS)

Cause of assumption: The outdoor unit heat exchanger is dirty. High pressure switch faulty. Clogged gas pipe. The connector error

4. Error code E3

Error name: System No. 1. Drive of the high pressure switch (HPS)

Cause of assumption: The outdoor unit heat exchanger is dirty. Lack of water. Clogged gas pipe. The connector error. HPS defective

5. Error code E4

Error name: Drive of low pressure switch (LPS)

Assumed cause: Abnormal pressure drop. Defective low pressure sensor. The outdoor circuit board is damaged. The connector error

6. Error code E5

Error name: Inverter compressor motor error or overheating

Cause of assumption: Inverter compressor is stuck. High differential pressure. Defective inverter board. The connector error

7. Error code E6

Error name: STD compressor overcurrent / mechanical jam

Cause of assumption: Compressor fault. Controller board defective. Not open the stop valve

8. Error code E6

Error name: System No. 1. STD compressor overcurrent / mechanical jam

Cause of assumption: Defective electronic throttle. Lack of refrigerant. Faulty compressor

9. Error code E7

Error name: Defective outdoor unit fan motor

Cause of error: Fan motor error. The connection between the board and the fan motor is loose or loose. Fan stuck

10. Error code E8

Error name: Inverter compressor overcurrent

Cause of assumption: Compressor fault. Defective inverter board capacitor. Defective outdoor unit board. Power transistor faulty

11. Error code E9

Error name: Faulty electronic expansion valve

Cause of error: Electronic connection error. Faulty electronic throttle. Defective outdoor unit control board

12. Error code ER

Fault name: Faulty four-way valve fault or hot / cold switch

Cause of assumption: Four-way valve is faulty. Lack of gas. Defective outdoor unit PCB. Faulty temperature sensor

13. EC error code

Error name: Abnormal outdoor water temperature

Assumed Cause: Abnormal cooling water temperature. Defective outdoor unit board. Faulty temperature sensor

14. Error code F3

Error name: Propeller temperature error

Cause of assumption: The thruster temperature sensor is damaged. Abnormal discharge head temperature. Defective outdoor unit control board. The connector error

15. Error code F6

Error name: Abnormal high pressure or refrigerant residue

Cause of assumption: Excess gas filling. Lost heat exchanger temperature sensor connection. Lost outdoor air temperature sensor connection. Loose pipe temperature sensor connection lost. Defective outdoor unit PCB

16. Error code H0

Error name: Malfunction of sensor system of compressor

Cause of assumption: The connecting cord is slipped or loose. Motherboard faulty

17. Error code H1

Error name: Malfunction of room temperature sensor or humidifying device damper

Cause of assumption: Limit switch is faulty. Damper valve

18. Error code H3

Error name: HPS high voltage fault (HPS)

Cause of assumption: High-voltage switch is faulty. Connection error. Defective outdoor unit board. Error connecting head

19. Error code H4

Error name: Malfunction of low pressure switch (LPS)

Cause of assumption: The low pressure switch is faulty. Connection error. Defective outdoor unit board. Error connecting head

20. Error code H5

Error name: Compressor motor overload sensor error

Cause of assumption: The heat sensor overloaded the compressor motor. Error connecting head

21. Error code H6

Error name: Error of position protection sensor

Cause of error: Compressor terminal connection or compressor power cord. The compressor is broken. The outdoor unit is damaged

22. Error code H7

Error name: Malfunction of outdoor unit fan motor error

Cause of error: Abnormal signal from fan motor (Circuit fault). Connection failure / short circuit of fan motor or connector error. The inverter board is damaged

23. Error code H8

Error name: Compressor thermostat (CT) error

Cause of assumption: Power transistor is damaged. Reactor is broken. Error connecting the inverter system. The outdoor unit is damaged

24. Error code H9

Error name: Malfunction of external air temperature sensor
Outdoor

Cause of error: Temperature sensor connection error. The outdoor unit is damaged. The outdoor air temperature sensor is defective

25. Error code HC

Error name: Water temperature sensor sensor (hot)

Cause of error: Temperature sensor connection error. The outdoor unit is damaged. Water temperature sensor is damaged

26. HF error code

Error name: Warning heat storage device
or hosting controls

Cause of error: Thermal storage cable connection error. Installation error. Exceeded number of heat storage tanks

27. Error code HJ

Error name: Error in the water storage tank water level

Cause of assumption: Low water level. Error installing switch. Water level sensor defective. Error connecting head

28. Error code J1

Error name: Error of pressure sensor

Cause of error: Defective pressure sensor connector connection. The pressure sensor is damaged. The outdoor circuit board is damaged

29. Error code J2

Error name: Compressor line sensor error

Cause of assumption: Current transformer is broken. The compressor is broken. The outdoor circuit board is damaged

30. Error code J3

Fault name: Propeller temperature sensor error

Cause of error: Sensor connector error. Propeller temperature sensor is damaged. The outdoor unit is damaged

31. Error code J4

Error name: Corrective low pressure saturation temperature sensor error

Cause of error: Sensor connector error. The sensor is broken. The outdoor unit is damaged

32. Error code J5

Fault name: Regenerative gas temperature sensor error
hot

Cause of error: Sensor connector error. Regenerative gas temperature sensor damaged. The outdoor unit is damaged

33. Error code J6

Fault name: Exchanger temperature sensor error
heat

Cause of error: Sensor connector error. Defective heat exchanger temperature sensor. The outdoor unit is damaged

34. Error code J7

Error name: Malfunction of thermistor (Gas circuit)

Cause of error: Sensor connector error. Liquid gas temperature sensor damaged. The outdoor unit is damaged

35. Error code J8

Error name: Malfunction of thermistor (Gas circuit)

Cause of error: Sensor connector error. Liquid gas temperature sensor damaged. The outdoor unit is damaged

36. Error code J9

Error name: Malfunction of thermistor (Gas circuit)

Cause of error: Sensor connector error. Damaged gas temperature sensor. The outdoor unit is damaged

37. JR fault code

Error name: Error of high pressure sensor

Cause of assumption: Connection terminal error. Low voltage sensor is mistakenly connected to the high pressure sensor position. The high pressure sensor is damaged. The outdoor unit is damaged

38. Error code JC

Error name: Error of high pressure sensor

Cause of assumption: Connection terminal error. High-pressure sensor incorrectly connected to the low-pressure sensor position. Damaged low pressure sensor. The outdoor unit is damaged

39. JE error code.

Error name: Oil pressure sensor error or auxiliary tank temperature

Cause of assumption: Connection terminal error. The auxiliary tank temperature sensor is damaged or the outdoor unit is damaged

40. JF error code

Error name: Malfunction of oil level sensor or heat exchanger temperature

Cause of assumption: Connection terminal error. Defective indoor temperature sensor. The outdoor unit is damaged

41. Error code L0

Error name: Error about the inverter system

Cause of assumption: Lack of power supply. Power transistor is damaged. The outdoor unit is damaged

42. Error code L1

Error name: Inverter board error

Cause of error: Compressor power supply error. Defective outdoor unit fan motor. Broken fuse Or the inverter board is damaged

43. Error code L3

Error name: Electric box temperature rise

Cause of assumption: The heat sink temperature is increased due to wind. The outdoor unit fan motor is damaged. Power transistor is damaged. The outdoor unit is damaged

44. Error code L4

Error name: Temperature of outdoor unit fins is increased

Cause of assumption: The heat sink temperature is increased due to wind. Damper temperature sensor defective

45. Error code L5

Error name: Inverter motor overcurrent (DC output)

Cause of error: Compressor winding fault (Unplugged or insulated insulation
Bao). Compressor does not start (Mechanical jam). The inverter board is damaged

46. ​​Error code L6

Error name: Inverter motor overcurrent (AC output)

Assumed cause: Excessive refrigerant charge. Lack of power supply. The compressor is broken. Faulty inverter device

47. Error code L8

Error name: Inverter compressor overcurrent error

Cause of assumption: Compressor is overloaded. Compressor coil error. Loss of compressor power cord connection. The inverter board is damaged

48. Error code L9

Error name: Inverter compressor startup error

Cause of assumption: Service valve has not been opened. The compressor is broken. Error connecting compressor power cord
Pressure difference before compressor starts. The inverter board is damaged

49. LR error code

Error name: Power transistor error

Cause of assumption: Power transistor is damaged. The compressor is broken. The inverter of outdoor unit is damaged

50. LC error code

Error name: Error transmitting signal between control board and inverter board

Cause of error: Connection error between control board and inverter board. External factors (eg noise). The inverter compressor is broken. Controller board defective (Unable to transmit signal)

51. Error code M1

Error name: Central control board error

Cause of assumption: Defective central control board

52. Error code M8

Error name: Error connecting signal between other central control devices

Cause of assumption: Loss of power of other central control device. The reset button of the central control is turned on. Error in signal transmission line. Change the address of the central control

53. MR error code

Error name: Incompatible controller devices for central control

Cause of assumption: The control devices for the central control are not compatible. There is more than one main monitor. Wrong setting of central control. Central controller is damaged

54. MC error code

Error name: same address, wrong setting

Cause of assumption: Duplicate address of central control

55. Error code P0

Error name: Lack of refrigerant

Assumed Cause: Lack of a refrigerant. Blockage of refrigerant piping

56. Error code P1

Error name: Unbalanced phase voltage, bo error
inverter circuit

Cause of assumption: Phase loss. Unbalanced voltage between phases. Main circuit capacitor fault. Error connecting main circuit. The inverter board is damaged

57. Error code P2

Error name: Stop automatic feeder operation

Cause of assumption: Service valve has not been opened. Never open the refrigerant container valve

58. Error code P3

Error name: Electric box temperature sensor error

Cause of error: Temperature sensor connection error. The reactor temperature sensor is damaged. The inverter board is damaged

59. Error code P4

Error name: Malfunction of thermostat wing thermistor

Cause of assumption: Radiator temperature sensor is damaged. The inverter board is damaged. The inverter compressor is broken. Fan motor is down

60. Error code P8

Error name: Kick-off protective device activates during autoloading

Cause: Close the refrigerant container valve.

61. Error code P9

Error name: Fan motor error (Humidifier)

Cause of assumption: Fan motor failure. The outdoor unit is damaged. The relay wire is broken. Error connecting head

62. PR error code

Error name: Liquid medium during auto-filler process

Cause of assumption: The master fluid medium is empty

63. PR error code

Error name: Broken heating element (Humidifying device)

Cause of assumption: Heating unit is damaged. The temperature sensor is damaged. The outdoor unit is damaged

64. PC error code

Name of error: Empty medium in the tank during automatic filling (Replace new bottle)

Cause of assumption: The medium of the slave 2 unit is empty

65. Error code PH

Name of error: Empty medium in the tank during automatic filling (Replace new bottle)

Cause of assumption: Heating unit is damaged. Error connecting head. The temperature sensor is damaged. The outdoor unit is damaged

66. Error code PJ

Error name: Capacity setting error (Outdoor unit PCB)

Cause of assumption: No power installation components have been installed. Wrong setting capacity. The outdoor unit is damaged

67. Error code PJ

Error name: Incompatible fan and inverter control

Cause of assumption: The board is not suitable. Wrong settings after replacing the outdoor unit

Daikin air conditioner error code table

Daikin air conditioner error code table with indoor unit

1. Error code R0

Error name: Activate peripheral protection device

Cause of assumption: An external protective device connected to the T1-T2 terminal of the indoor unit is activated

2. Error code R1

Name of error: Malfunction of indoor unit PCB

Cause of assumption: The indoor circuit board is broken. External factors (noise, etc.)

3. Error code R3

Error name: Malfunction of indoor drain water system

Cause of assumption: Disconnect the drain hose, the exhaust pipe is not enough slope …. The drain pump is damaged. The float switch is faulty or the circuit is short-circuited

4. Error code R4

Fault name: Fault protection

Assumed Cause: Lack of water. Set low water temperature. Damaged water temperature sensor

5. Error code R5

Name of fault: High pressure control in heating mode, ice-cold protection control in cooling mode

Cause of assumption: Air filter is inaccessible to the indoor unit or air is blocked. Defective indoor unit heat exchanger temperature sensor

6. Error code R6

Error name: Fan motor error

Cause of fault: Broken wire, short circuit, or loose fan motor wire connection. Fan motor faulty. Malfunction of indoor unit PCB

7. Error code R7

Error name: Swing motor wing error

Cause of assumption: Swing wing motor is faulty. Malfunction of indoor unit PCB. Loose connection wire. The air deflector adjustment unit is defective

8. Error code R8

Error name: AC input voltage or overcurrent error

Cause of assumption: Supply voltage error. Error of signal line. Error connecting wire

9. Error code R9

Error name: Faulty electronic expansion valve

Cause of assumption: Defective coil of electronic valve from indoor unit is defective. Defective indoor circuit board. Faulty relay cable

10. Error code RR

Error name: Heating system is overheated

Cause of assumption: 26WH is enabled ‘

11. RF error code

Error name: Humidifying system error

Cause of hypothesis: Humidifier (optional accessory) leaks. Malfunction of drain pipe (Insufficient slope, …). The indoor circuit board is damaged

12. Error code RH

Error name: Air filter dust collector error

Cause of error: Dust collector error. The insulation is rusty. High voltage error. Defective indoor circuit board

13. RJ error code

Error name: Error on indoor unit capacity setting error

Cause of assumption: Components with appropriate capacity settings have not been installed yet when replacing the new motherboard. Defective indoor circuit board

14. Error code C1

Error name: Error connecting signal between indoor and auxiliary board

Cause of error: Connection error between indoor units

15. Error code C4

Error name: Liquid gas temperature sensor error

Cause of assumption: Liquid gas temperature sensor has failed. Strange circuit board

16. Error code C5

Error name: Error of gas line temperature sensor

Cause of assumption: Steam gas temperature sensor is damaged. The indoor circuit board is damaged. Error connecting head

17. Error code C6

Error name: Malfunction of fan motor sensor or fan control

Cause of assumption: Fan circuit board is damaged. Loose power resistor connection. Wrong settings

18. Error code C7

Error name: Reverse motor error, limit switch

Assumed Cause: Reverse wind motor error. Limit switch error

19. Error code C9

Fault name: Regenerative air temperature sensor error

Cause of assumption: Regenerative temperature sensor is damaged. The indoor circuit board is damaged. Error connecting head

20. Error code CR

Error name: Malfunction of wind temperature sensor

Cause of assumption: The air temperature sensor is damaged. The indoor circuit board is damaged. Error connecting head

21. Error code CC

Error name: Humidity sensor error

Cause of error: Humidity sensor defective. Error connecting head

22. Error code CJ

Error name: Malfunction of thermistor at control

Cause of assumption: The temperature sensor at the controller is damaged. Controller board broken. External factors (noise, etc.)

Daikin air conditioner error code table

The above is Daikin air conditioner error code table Details, the most popular today. Hope they will be helpful for you to help you easily find and fix problems.

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