Display shows PF and the unit shuts off or restarts unexpectedly after a power interruption.

Safety: Ensure the unit is plugged into a properly grounded outlet. Do not use undersized extension cords.

Steps:

• 1. Reset after outage: Press the power button to restart the unit after PF appears. Many Frigidaire models display PF simply to indicate a power interruption.
• 2. Check outlet: Test the outlet with another appliance. If power is unstable, contact an electrician.
• 3. Inspect cord and plug: Look for damage or heat discoloration. Replace the power cord if needed.
• 4. Surge protection: Use a heavy-duty surge protector rated for air conditioners to protect the control board from future power events.