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Error Code
The E5 error code on your Toshiba air conditioning unit indicates a communication failure between the indoor and outdoor units. This can prevent the system from operating properly.
If the wiring between the indoor and outdoor units is loose or damaged, it can disrupt communication.
A malfunction in the PCB may cause communication errors between the units.
Voltage fluctuations or power surges can interfere with communication between units.
Turn off the air conditioner for 5–10 minutes, then turn it back on to reset communication.
Check the wiring between the indoor and outdoor units for any loose or damaged connections.
If communication issues persist, the PCB may need to be inspected and replaced.
