Toshiba air conditioners combine Japanese engineering excellence with energy-efficient inverter technology.
Indoor control board malfunction. Professional PCB inspection and replacement required.
Room temperature sensor fault. Replace indoor temperature sensor.
Evaporator coil sensor malfunction. Professional sensor replacement needed.
Indoor fan motor malfunction or speed detection error. Check motor operation.
Indoor/outdoor communication failure. Check control wiring and connections.
General outdoor unit malfunction. Inspect outdoor unit operation.
Outdoor ambient temperature sensor fault. Replace outdoor sensor.
Condenser coil temperature sensor malfunction. Professional sensor replacement required.
High pressure protection activated. Check refrigerant system and ventilation.
Low pressure protection activated. Check for refrigerant leaks and insufficient charge.