Daikin · Simple Self Diagnosis by Malfunction Code | Daikin
The outdoor unit's sensor responsible for monitoring the power supply has detected an issue.
Click steps to track your progress.
Turn off the unit's power supply at the breaker.
Verify that the main power supply to your home is stable.
Restore power and check if the error is cleared.
If the problem recurs, a technician should check the power supply and sensor.