Hitachi air conditioners feature innovative frost wash technology and reliable inverter compressors for optimal performance.
Room temperature sensor malfunction. Check sensor connections and replace if necessary.
Evaporator coil temperature sensor fault. Professional sensor replacement required.
Condenser coil temperature sensor malfunction. Replace outdoor coil sensor.
Outdoor ambient temperature sensor fault. Check outdoor sensor connections.
Indoor/outdoor communication failure. Check control cable and connections.
Indoor blower motor malfunction. Check motor operation and electrical supply.
Outdoor fan motor fault. Inspect outdoor fan and motor connections.
Compressor malfunction or protection activated. Professional compressor diagnosis required.
High refrigerant pressure detected. Check system for blockages or overcharge.
Low refrigerant pressure detected. Check for refrigerant leaks and recharge system.