Hitachi Pc Art Remote Controller User Manual

Posted : admin On 10/6/2021
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Being a part of the DKB Group, Hitachi in its own turn, is a parent company of the Hitachi Group. The Japanese conglomerate company produces goods in more than ten segments, from electronics and information systems to railway and automotive systems. It is listed in the Forbes rankings of the world’s most influential companies on a regular basis.
Sometimes, error codes can give you enough information to fix your Hitachi air conditioner on your own. However, in most cases the help of a service engineer is indispensible. Anyway, the fault code will help you to find out what the problem is and decide whether you can deal with it on your own. The table below contains the error codes for Hitachi air conditioning systems, explained in all details.

Hitachi Inverter-driven Multi-Split system heat pump Air Conditioner error codes

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Code No.CategoryContent of AbnormalityLeading Cause
01Indoor UnitTripping of Protection DeviceFailure of Fan Motor, Drain Discharge, PCB, Relay
02Outdoor UnitTripping of Protection DeviceActivation of PSH
03TransmissionAbnormality between Indoor (or outdoor) and
Outdoor (or Indoor)
Incorrect Wiring. Failure of PCB.
Tripping of Fuse. Power Supply OFF.
04InverterAbnormality between Inverter and Control PCBFailure in Transmission between PCBs
05TransmissionAbnormality of Power Source WiringReverse Phase Incorrect Wiring
06Voltage DropVoltage Drop by Excessively Low or High
Voltage to Outdoor Unit
Voltage Drop of Power Supply, Incorrect Wiring or
Insufficient Capacity of Power Supply Wiring
07CycleDecrease in Discharge Gas SuperheatExcessive Refrigerant Charge, Expansion Valve
Open Lock
08CycleIncrease in Discharge Gas TemperatureInsufficient Refrigerant. Ref. Leakage, Clogging or
Expansion Valve Close Lock
09Outdoor UnitTripping of Protection DeviceFailure of Fan Motor
11Sensor on Indoor UnitInlet Air ThermistorFailure of Thermistor, Sensor, Connection
12Outlet Air Thermistor
13Freeze Protection Thermistor
14Gas Piping Thermistor
19Tripping of Protection Device for Fan MotorFailure of Fan Motor
21Sensor on Outdoor UnitHigh Pressure SensorFailure of Thermistor, Sensor, Connection
22Outdoor Air Thermistor
23Discharge Gas Thermistor on Comp.
24Evaporating Thermistor
29Low Pressure Sensor
30 *SystemIncorrect Wiring ConnectionIncorrect Wiring Connection between Outdoor Unit,
CH Unit and Indoor Unit
31Incorrect Setting of Outdoor and Indoor UnitIncorrect Setting of Capacity Code.
32Abnormal Transmission of Other Indoor UnitFailure of Power Supply, PCB in Other Indoor Unit.
Failure of Other Indoor Unit of the Same
Refrigerant Cycle.
35Incorrect Setting in Indoor/Outdoor Unit No.Existence of the same Indoor Unit No. in the same
refrigerant cycle.
38Abnormality of Protective Circuit in
Outdoor Unit
Failure of Indoor Unit PCB. Incorrect Wiring
Connection to PCB in Outdoor Unit
39Abnormality of Running Current at
Constant Compressor
Overcurrent, Melted Fuse of Failure of Current
Sensor
43PressurePressure Ratio Decrease Protection ActivatingFailure of Compressor, Inverter
44Low Pressure Increase Protection ActivatingOverload to Indoor in Cooling, High Temperature of
Outdoor Air in Heating Expansion Valve Open Lock
45High Pressure Increase Protection ActivatingOverload Operation. Excessive Refrigerant
Clogging of Heat Exchanger
46High Pressure Decrease Protection ActivatingInsufficient Refrigerant
47Low Pressure Decrease Protection ActivatingInsufficient Refrigerant. Expansion Valve Close
Lock. Refrigerant Leakage.
51InverterAbnormality of Current Sensor for InverterFailure of Sensor on Inverter PCB
52Overcurrent Protection ActivatingOverload, Overcurrent, Locked to Compressor
53IPM Protection ActivatingAutomatic Stoppage of IPM (Overcurrent, Low
Voltage or Overheating)
54 **Increase in Inverter Fin TemperatureAbnormal Inverter Fin Thermistor,
Abnormal Outdoor Fan
56 **Outdoor FanAbnormality of Detection for Fan Motor PositionAbnormal Detection Circuit of Transmission
57 **Fan Controller Protection ActivatingAbnormal Fan Speed
58 **Abnormality of Fan ControllerOvercurrent, Abnormal Fan Controller Fin
59AC ChopperAC Chopper Circuit ProtectionFailure of FET, Power Supply, CT for Fan Motor
EECompressorCompressor Protection3 Time Occurrence of Alarm Giving Damage to
Compressor within 6 hours
dd ***TransmissionIncorrect Wiring between Indoor UnitsIncorrect Wiring between Indoor Units and Remote
Control Switch


* : For only FXG and FX3 series. Other code Nos. are common with FSG and FS3 series.

** : For only 24, 30FSG1/FSG5 (220V 60Hz), *** : In case of PC-2H2

Hitachi Room Air Conditioner range:

Indoor unit alarm codes

If timer lamp flashes for 1 second on, 1 second off, this indicates pre heating on the coil during heating mode and is not an error.

If timer lamp flashes for a number of times and then pauses, please reference table below.Controller
LED 301 FlashesRange: Summit/Mono/Multizone indoor unit
01Indoor coil is too warm in cooling mode or too cold in heating mode.
Reversing valve or coil thermistor is faulty
02Forced operation from the outdoor unit.
This is not an error
03Communication error.
Faulty wiring, indoor or outdoor PCB faulty
04Outdoor unit fault.
Check the number or flashes on outdoor PCB LED 301 to comfirm exact problem
06Float switch activated.
Check pump operation and drain
07Drain pump forced operation.
Drain test switch in test position, faulty PCB
08Louvre not opening.
Louvre motor faulty, microswitch faulty, PCB faulty (RAF unit only)
09Faulty indoor unit thermistor.
Air inlet or coil thermistor not connected, open or short circuited faulty PCB
10Indoor fan motor over current or abnormal rotation speed.
Faulty motor or PCB
13Eprom data error.
Faulty PCB

Outdoor unit alarm codes

LED 301 FlashesRange: Summit/Mono/Multizone outdoor unit
1Normal, unit powered up
2Over current on the compressor
Faulty PCB or locked compressor
2
with LED302 lit
Over current on the compressor
System power module or PCB failure
3Compressor rotation speed is low, abnormal compressor rotor position
Faulty system power module, faulty compressor or PCB
4Switching failure on the compressor
Faulty system power module, faulty compressor or PCB
5Compressor rotation low with over current detected
High pressure detected, faulty fan motor/circuit or abnormally low voltage
6Discharge thermistor temperature rising
Short of refrigerant charge, faulty thermistor, faulty compressor faulty fan motor/circuit or main PCB
7Faulty thermistor (Summit and Monozone only)
8Compressor not accelerating above minimum rotation speed
Short of refrigerant charge or faulty compressor
9Communication error
C/D terminals not connected, faulty interconnecting cable PCB failure (Summit and Monozone only)
10Abnormal voltage
Mains voltage incorrect or faulty reactor
12Fan motor rotation is abnormal
Faulty fan motor or PCB (check fuse)
13Eprom error
Main PCB failure
14Over voltage is detected by system power module
Faulty SPM


If indoor unit filter lamp is flashing four times, this indicates an outdoor unit fault. This is identified by the number of flashes on LD 301.

If LD 303 is on permanently this is normal operation. If LD 301 is lit in conjunction with LD 303 his indicates an overload (1) condition but not an alarm. If LD 302 is lit in conjunction with LD 303 this indicates an overload (2) condition but not an alarm and if LD 301 and LD 302 are lit in conjunction with LD 303, this indicates an overload (3) condition but not an alarm.

On Multizone systems only, if LD 301 is lit permanently and LD 302 is flashing a number of times, this indicates a thermistor fault. If LD 304 is flashing, the number of flashes indicates a communication error with the corresponding indoor unit circuit number. Check cable connections, cable is not short circuited or open circuit and PCB operation.
LD 302 FlashesFlashesThermistor that is faulty
1Compressor overheat (OH)
2Defrost thermistor
3Ambient thermistor
4Narrow pipe (expansion) thermistor, for circuit 1
5Wide pipe (suction) thermistor, for circuit 1
6Narrow pipe (expansion) thermistor, for circuit 2
7Wide pipe (suction) thermistor, for circuit 2
8Narrow pipe (expansion) thermistor, for circuit 3
9Wide pipe (suction) thermistor, for circuit 3

Hitachi Heat Pump Error Codes

If a Safety Device is activated, cutting out the compressor, the Run light on the Remote Control switch blinks continuously and ABNML is indicated on the LCD display.
The Unit Identification A* etc is shown along with the Code Number for the Fault that has occurred.
Fault CodeLED1LED2LED3LED4Fault
NormalNormal
01*
02*Safety Device (Indoor or Outdoor Unit)
03*Transmission Indoor/Outdoor Unit
05*
08***Compressor High Temperature
20**Compressor Thermistor
22**Ambient Air Thermistor
24**Defrost Thermistor
38**PCB Protection Circuit
41**Overload Operation for Cooling
42***Overload Operation for Heating
11-13****11 Fault = Air Inlet Thermistor
13 Fault = Freeze Protection Thermistor
April 24, 2019

Hitachi Inverter-driven, Multi-split System, Heat Pump Air Conditioners;

CodeProtection control
P01Pressure ratio protection control
P02High pressure increase protection
P03Inverter current protection
P04Inverter fin temperature increase protection
P05Discharge gas temperature increase protection at the upper part of the compressor
P06Low pressure decrease protection
P09High pressure decrease protection
P0ADemand current protection control
P0dLow pressure increase protection
P11Pressure ratio decrease retry
P12Low pressure increase retry
P13High pressure increase retry
P14Constant speed compressor overcurrent retry
P15Discharge gas temperature increase retry / Low pressure decrease retry
P16Discharge gas super-heat decrease retry
P17Inverter anomaly retry
P18Abnormal Inverter voltage retry / Inverter failure retry
P26High pressure decrease retry

Alarm Codes;

Code: 01

Content of Abnormality: Tripping of Protection Device


Leading Cause: Failure of Fan Motor, Drain Discharge, PCB, Relay

Code: 02

Content of Abnormality: Tripping of Protection Device

Leading Cause: Activation of PSH

Code: 03

Content of Abnormality: Abnormality between Indoor (or outdoor) and Outdoor (or Indoor)

Leading Cause: Incorrect Wiring. Failure of PCB. Tripping of Fuse. Power Supply OFF.

Code: 04

Content of Abnormality: Abnormality between Inverter and Control PCB

Leading Cause: Failure in Transmission between PCBs

Code: 05

Content of Abnormality: Abnormality of Power Source Wiring

Leading Cause: Reverse Phase Incorrect Wiring

Code: 06

Content of Abnormality: Voltage Drop by Excessively Low or High Voltage to Outdoor Unit

Leading Cause: Voltage Drop of Power Supply, Incorrect Wiring or Insufficient Capacity of Power Supply Wiring

Code: 07

Content of Abnormality: Decrease in Discharge Gas Superheat

Leading Cause: Excessive Refrigerant Charge, Expansion Valve Open Lock

Code: 08

Content of Abnormality: Increase in Discharge Gas Temperature

Leading Cause: Insufficient Refrigerant. Ref. Leakage, Clogging or Expansion Valve Close Lock

Code: 09

Content of Abnormality: Tripping of Protection Device

Leading Cause: Failure of Fan Motor

Code: 11


Content of Abnormality: Inlet Air Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 12

Content of Abnormality: Outlet Air Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 13

Content of Abnormality: Freeze Protection Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 14

Content of Abnormality: Gas Piping Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 19

Content of Abnormality: Failure of Fan Motor

Leading Cause: Failure of Fan Motor

Code: 21

Content of Abnormality: High Pressure Sensor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 22

Content of Abnormality: Outdoor Air Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 23

Content of Abnormality: Discharge Gas Thermistor on Comp

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 24

Content of Abnormality: Evaporating Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 29

Content of Abnormality: Low Pressure Sensor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 30

Content of Abnormality: Incorrect Wiring Connection

Leading Cause: Incorrect Wiring Connection between Outdoor Unit, CH Unit and Indoor Unit

Code: 31

Content of Abnormality: Incorrect Setting of Outdoor and Indoor Unit

Leading Cause: Incorrect Setting of Capacity Code

Code: 32

Content of Abnormality: Abnormal Transmission of Other Indoor Unit

Leading Cause: Failure of Power Supply, PCB in Other Indoor Unit. Failure of Other Indoor Unit of the Same Refrigerant Cycle.

Code: 35

Content of Abnormality: Incorrect Setting in Indoor/Outdoor Unit No.

Leading Cause: Existence of the same Indoor Unit No. in the same refrigerant cycle

Code: 38

Content of Abnormality: Abnormality of Protective Circuit in Outdoor Unit

Leading Cause: Failure of Indoor Unit PCB. Incorrect Wiring Connection to PCB in Outdoor Unit

Code: 39

Content of Abnormality: Abnormality of Running Current at Constant Compressor

Leading Cause: Overcurrent, Melted Fuse of Failure of Current Sensor

Code: 43

Content of Abnormality: Pressure Ratio Decrease Protection Activating

Leading Cause: Failure of Compressor, Inverter

Code: 44

Content of Abnormality: Low Pressure Increase Protection Activating

Leading Cause: Overload to Indoor in Cooling, High Temperature of Outdoor Air in Heating Expansion Valve Open Lock

Code: 45

Content of Abnormality: High Pressure Increase Protection Activating


Leading Cause: Overload Operation. Excessive Refrigerant Clogging of Heat Exchanger

Code: 46

Content of Abnormality: High Pressure Decrease Protection Activating

Leading Cause: Insufficient Refrigerant

Code: 47

Content of Abnormality: Low Pressure Decrease Protection Activating

Leading Cause: Insufficient Refrigerant. Expansion Valve Close Lock. Refrigerant Leakage

Hitachi Pc Art Remote Controller User Manual

Code: 51

Content of Abnormality: Abnormality of Current Sensor for Inverter

Leading Cause: Failure of Sensor on Inverter PCB

Code: 52

Content of Abnormality: Overcurrent Protection Activating

Leading Cause: Overload, Overcurrent, Locked to Compressor

Code: 53

Content of Abnormality: IPM Protection Activating

Leading Cause: Automatic Stoppage of IPM

Code: 54

Content of Abnormality: Increase in Inverter Fin Temperature

Leading Cause: Abnormal Inverter Fin Thermistor, Abnormal Outdoor Fan

Code: 56

Content of Abnormality: Abnormality of Detection for Fan Motor Position

Leading Cause: Abnormal Detection Circuit of Transmission

Code: 57

Content of Abnormality: Fan Controller Protection Activating

Leading Cause: Abnormal Fan Speed

Code: 58

Content of Abnormality: Abnormality of Fan Controller

Leading Cause: Overcurrent, Abnormal Fan Controller Fin

Code: 59

Content of Abnormality: AC Chopper Circuit Protection

Leading Cause: Failure of FET, Power Supply, CT for Fan Motor

Code: EE

Content of Abnormality: Compressor Protection

Leading Cause: 3 Time Occurrence of Alarm Giving Damage to Compressor within 6 hours

Code: dd

Content of Abnormality: Incorrect Wiring between Indoor Units

Leading Cause: Incorrect Wiring between Indoor Units and Remote Control Switch

Remote Controller-Model: PC-2H2

Code: 01

Cause: Safety Device of the Indoor Unit is tripped (internal Thermostat, *Float Switch)

Code: 02

Cause: Safety Device of the Outdoor Unit is tripped

Code: 03

Cause: Transmission Abnormality between Indoor Unit and Outdoor Unit

Code: 05

Cause: Picking up phase Abnormality

Code: 08

Cause: Abnormality High Temperature on the Top of Compressor

Code: 11

Cause: Thermistor Abnormality for inlet Air Temperature

Code: 12

Cause: Thermistor Abnormality for outlet Air Temperature

Code: 13

Cause: Thermistor Abnormality for Freezing Temperature

Code: 20


Cause: Thermistor Abnormality for Compressor Top Temperature

Code: 22

Cause: Thermistor Abnormality for Outdoor Air Temperature

Code: 24

Cause: Thermistor Abnormality for Outdoor Evaporating Temperature (defrosting)

Code: 25

Cause: Thermistor Abnormality for Condensing Temperature

Code: 32

Cause: Transmision Abnormality between Master and Slave

Code: 38

Cause: Abnormality in the Picking up Circuit protection

Code: 41

Cause: Excessive Overload during Cooling Operation

Code: 42

Cause: Excessive Overload during Heating Operation

Regarding the retry control, the lastest retry code will be indicated unless the protection control related with the frequency control is indicated.

Troubleshooting

This Is Not Abnormal

  • Smells from Indoor Unit; Smell adheres on indoor unit after a long period of time. Clean the air filter and panels or allow a good ventilation.
  • Sound from Deforming Parts; During system starting or stopping, an abrading sound might be heard. However, this is due to thermal deformation of plastic parts. It is not abnormal.
  • Steam from Outdoor Heat Exchanger; During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in making steam.
  • Dew on Air Panel; When the cooling operation continues for a long period of time under high humidity conditions (higher than 27°C DB/80% R.H), dew can form on the air panel.
  • Refrigerant Flow Sound; While the system is being started or stopped, sound from the refrigerant flow may be heard.

Universal Remote Controller

Not Cooling Or Heating Well

  • Check for obstruction of air flow of the outside or inside units.
  • Check if too much heat source exists in the room.
  • Check if the air filter is clogged with dust.
  • Check to see if the doors or windows are opened or not.
  • Check if the temperature condition is not within the operation range.

Hitachi Pc Art Remote Controller User Manual Download

Not Operate

Remote Control

  • Check for electrical wiring.
  • Check for dip switch setting.
  • Check whether the “SET TEMP” is set at the correct temperature.
  • In the case that “RUN” lamp on remote control switch is flickering every 2 seconds, check for connection of remote control line.
  • In the case that “RUN” lamp flashes 5 times (5 seconds) with unit number and alarm code displayed, refer to the next item “18.2 Troubleshooting by Alarm Code” and the “Service Manual”.
  • In the case that no alarm code is indicated and normal operation is not available, refer to the “Service Manual” because abnormality of some device is suspected.

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