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Error Code
The F5 error code indicates a communication failure between the indoor and outdoor units. This issue typically arises due to wiring or PCB problems.
Communication between the indoor and outdoor units can fail if the wiring is damaged or loose.
The PCB may malfunction, disrupting communication.
Voltage fluctuations can interrupt communication signals.
Turn off the unit for 5–10 minutes, then turn it back on to reset communication.
Check for loose or damaged wiring between the indoor and outdoor units.
A technician can inspect and replace the PCB if necessary.
