Microwave displays PF or P0 after a power interruption and may beep.

Safety first: If you suspect wiring issues in the home, consult an electrician.

Steps:

• Reset clock: PF is usually informational. Set the clock and test normal operation.
• Check plug and outlet: Ensure the microwave plug is fully inserted into a grounded outlet. Avoid using extension cords.
• Monitor for recurrence: If PF appears frequently without known outages, try another outlet on a different circuit.

If issues persist:

• A technician can inspect the internal power supply circuit on the main control PCB for intermittent faults.