Hitachi air conditioners offer cooling and heating solutions for indoor spaces. Whether it’s a window unit, split system, or portable unit, these appliances provide efficient climate control. They are designed for energy efficiency, quiet operation, and precise temperature adjustment, ensuring your home remains comfortable year-round.
E01: Indoor Temperature Sensor Fault
The sensor that monitors the indoor temperature is malfunctioning or giving inaccurate readings.
E02: Outdoor Temperature Sensor Fault
The sensor monitoring the outdoor unit’s temperature is malfunctioning.
E03: Communication Error
There’s a communication failure between the indoor and outdoor units.
E04: Compressor Fault
The compressor, crucial for cooling, is not functioning properly or is overheating.
E05: Fan Motor Error
There’s a problem with the fan motor either in the indoor or outdoor unit.
E06: Refrigerant Issue
There might be a leak or blockage in the refrigerant system, affecting the cooling process.
E07: Condensate Pump Error
The pump responsible for removing condensation from the indoor unit is malfunctioning.
E08: Voltage Fluctuation
The system detected voltage irregularities which could harm the AC’s components.
E09: Drainage Error
The drainage system is blocked or malfunctioning, leading to water accumulation in the indoor unit.
E10: Overload Protection
The AC’s protective mechanisms have been activated due to a potential overload or system stress.
E11: Low Refrigerant Charge
The system detects a low refrigerant level, which can hamper efficient cooling.
E12: High Pressure Protection
The system has detected excessive pressure, possibly due to blockages or faulty components, activating protection mechanisms.
E13: Low Pressure Protection
The system has detected unusually low pressure, which might be caused by leaks or other issues.
E14: PCB (Printed Circuit Board) Malfunction
The main control board of the air conditioner is malfunctioning or not communicating correctly with other components.
E15: EEPROM Error
An error related to the EEPROM, where configuration data is stored, has been detected.
E16: Icing Sensor Fault
The sensor monitoring potential ice formation on the evaporator coil is malfunctioning.
E17: Heat Exchanger Sensor Fault
The sensor monitoring the heat exchanger’s temperature is providing erroneous readings or malfunctioning.
E18: Overcurrent Protection
The system is drawing excessive current, prompting safety mechanisms to activate.
E19: 4-Way Valve Error
The 4-way valve, crucial for switching between cooling and heating modes, is malfunctioning.
E20: Swing Motor Fault
The motor responsible for oscillating the louvers or air direction flaps is malfunctioning.
