The microwave display shows 'PF' or 'Power Fail' after an outage; the clock may be flashing.

Safety: Ensure the outlet and plug are in good condition before continued use.

Steps:

• 1. Reset Clock: Press Clock and set the time according to the user manual. 'PF' usually clears after setting the clock.
• 2. Check Supply: Confirm that other appliances on the same circuit are working normally. If breakers trip repeatedly, consult an electrician.
• 3. Direct Connection: Plug the Tower microwave directly into a wall outlet, not an extension cord.
• 4. Surge Protection: Consider using a surge-protected outlet to prevent future control board damage.

Note: 'PF' itself is not a fault code; it is informational. If other error codes appear afterward, troubleshoot those specifically.