Microwave displays PF or "Power Failure" after an outage or brief power interruption.

Safety: Ensure your hands are dry when working with electrical outlets.

Steps:

• Press CLEAR/OFF or STOP to clear the PF message.
• Reset the clock and test a short cook cycle.
• If PF reappears frequently without known outages, plug the microwave into a different, properly grounded outlet (avoid extension cords).
• Inspect the power cord for cuts, kinks, or burn marks. If damaged, discontinue use and have the cord replaced by a professional.
• If PF persists on multiple outlets, the internal control board power supply may be unstable and the board may need replacement.

Note: Consider using a surge protector rated for microwave ovens to reduce future PF events caused by surges.