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Error Code
The F3 error code indicates a high-pressure issue in your Toshiba air conditioning unit. This occurs when the refrigerant pressure exceeds safe operating levels
Dirt or debris buildup on the coils or filters can cause the system to overheat and trigger high pressure.
Low refrigerant can cause abnormal pressure and lead to the F0 error.
A malfunctioning pressure sensor may give incorrect readings, triggering this error.
Ensure the coils and filters are free from blockages.
Have a technician inspect and top up the refrigerant.
A technician can inspect and replace the faulty pressure sensor if needed.
