F19 (6 LED flashes) - Power supply voltage too high or low

What does F19 mean?

The outdoor unit's LED1 flashes six times, indicating that the power supply voltage is outside the acceptable range (either too high or too low).

• Unstable main power supply to your home
• Local electrical grid issues
• Faulty wiring or connection to the unit
• Issue with the AC unit's internal power detection circuit

Click steps to track your progress.

1. 1

   Turn off the AC unit at the main power switch or circuit breaker.

2. 2

   Check if other appliances in your home are experiencing power issues or fluctuations.

3. 3

   Wait for a stable power supply to be restored, then restart the AC unit after 10 minutes.

4. 4

   If your power supply seems normal but the error persists, consult with an electrician or AC technician.