Hitachi air conditioner error code faults checking Learn

 Hitachi Fault Codes all types very useful information

01 – Indoor Unit Protection Device Tripping (Flow Switch)

02 – Outdoor Unit Protection Device Trip (High Pressure Cutoff)

03 – Abnormality Between Indoor and Outdoor Units

04 – Abnormality Between Inverter PCB And Outdoor Unit PCB

04. – Abnormality Between Fan Control And Outdoor Unit PCB

05 – Abnormal Power Supply Phases

06 – Abnormal Inverter Voltage

06. – Abnormal Fan Control Voltage

07 – Decrease at Output Gas Temperature

08 – Output Gas Temperature Increase

0A – Abnormalities Between Outdoor Unitsk

0b – Incorrect Outdoor Unit Address Setting

0C – Incorrect Master Outdoor Unit Setting

11 – Air Inlet Thermistor

12 – Air Outlet Thermistor

13 – Frost Protection Thermistor

14 – Gas Piping Thermistor

19 – Indoor Unit Fan Protection Device Trip

21 – High Pressure Sensor

22 – Outdoor Thermistor

23 – Compressor Outlet Gas Thermistor

24 – Heat Exchanger Liquid Pipe Thermistor

25 – Heat Exchanger Gas Pipe Thermistor

29 – Low Pressure Sensor

31 – Incorrect Capacity Setting of Outdoor Unit or Indoor Unit

35 – Incorrect Setting of Indoor Unit Number

36 – Indoor Unit Combination Error

38 – Abnormality in the Receiving Circuit for Protection in the Outdoor Unit

39 – Abnormal Current Circulating in Constant Speed ​​Compressor

3A – Abnormalities in Outdoor Unit Capacity

3b – Incorrect Adjustment of Outdoor Unit Model, Combination or Voltage

3d – Abnormality of Communication Between Master and Slave Unitsi

43 – Trip of Low Compression Ratio Protection Device

44 – Tripping of Low Pressure Surge Protection Device

45 – Opening the High Pressure Surge Protection Device

47 – Trip of Low Pressure Fall Protection Device (Vacuum Operation Protection)

51 – Abnormal Inverter Current Sensor

53 – Inverter Fault Signal Detector

54 – Inverter Blade Temperature Abnormality

55 – Inverter Failure

57 – Fan Control Protection Trip

5A – Fan Control Blade Temperature Abnormality

5b – Overcurrent Protection Tripping

5C – Abnormality in Fan Control Sensor

EE – Compressor Protection Alarm

b1 – Outdoor Unit No. Setting Incorrect Unit Setting and Cooling Cycle No.

b5 – Indoor Unit No. Setting Incorrect Indoor Unit Connection Number Setting

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