- 0405133761
- servicefirsthampton@gmail.com
- 5 Frank Ave Clayton South, Melbourne, Australia
Hitachi Error Codes & Troubleshooting

Hitachi Error Codes & Troubleshooting
Hitachi air conditioners deliver reliable performance with advanced features for home comfort.
Error Code: 01
Indoor temperature sensor error
Troubleshooting Steps:
Room temperature sensor malfunction. Check sensor and wiring connections.
Error Code: 02
Indoor coil sensor error
Troubleshooting Steps:
Indoor heat exchanger sensor fault. Professional replacement may be required.
Error Code: 03
Outdoor temperature sensor error
Troubleshooting Steps:
Outdoor ambient temperature sensor failure. Check sensor operation.
Error Code: 04
Outdoor coil sensor error
Troubleshooting Steps:
Outdoor heat exchanger sensor malfunction. Professional diagnosis needed.
Error Code: 05
Communication error
Troubleshooting Steps:
Communication fault between units. Check connecting cables and terminals.
Error Code: 06
High pressure error
Troubleshooting Steps:
High pressure protection activated. Check system pressures and refrigerant.
Error Code: 07
Low pressure error
Troubleshooting Steps:
Low pressure protection activated. Check for refrigerant leaks.
Error Code: 08
Compressor error
Troubleshooting Steps:
Compressor malfunction detected. Immediate professional attention required.
Error Code: 09
Fan motor error
Troubleshooting Steps:
Fan motor malfunction. Check for obstructions and motor operation.
Error Code: 10
Power supply error
Troubleshooting Steps:
Power supply voltage abnormality. Check electrical supply and connections.
Still Having Issues with Your Hitachi System?
Our certified technicians are experts in Hitachi air conditioning systems. We provide professional diagnosis, repair, and maintenance services across Melbourne.
Available 24/7 for emergencies