F19 (6 flashes) — Power over/under voltage protection

What does F19 mean?

The unit has detected that the incoming power supply voltage is either too high or too low. This can damage internal components.

• Unstable power supply voltage
• Faulty Power Module

Click steps to track your progress.

1. 1

   Check that the power supply voltage to the unit is within the manufacturer's specified range.

2. 2

   Ensure there are no other high-power appliances on the same circuit causing voltage drops.

3. 3

   Restart the air conditioner.

4. 4

   If the problem continues, consult an electrician or technician.