Microwave display shows PF and beeps after a power interruption; clock is reset.

Safe checks:

• Press CLEAR/STOP or follow the user manual to clear the PF code, then reset the clock.
• Inspect the power cord at the rear of the microwave for damage or looseness.
• Test the wall outlet with another appliance to confirm it supplies power reliably.
• Check your home’s breaker panel for a tripped breaker and reset if necessary.

If PF appears frequently without actual outages, have an electrician check the outlet and circuit, and consider having a technician inspect the microwave’s line filter and control board.