PF Minor Easy DIY

Whirlpool Microwave PF — Power Failure / Clock Reset

Whirlpool Microwave · Error code PF

What PF Means

PF (or a flashing colon) means there has been a power failure or the clock has been turned off. Not a hardware fault on its own — just a notification.

Symptoms

  • PF on the display
  • Flashing ':' in the time display
  • Time is wrong after a power blip

Common Causes

1
Power outage or brief utility dropout

Most common — any sub-second blip resets the clock.

2
Breaker tripped and reset

Same effect as a utility outage.

3
Clock setting turned off in user options

Some Whirlpool models let you disable the clock display.

How to Fix It

  1. Press Cancel/Off to clear the flashing display.
  2. Re-enter the time using the Clock button if you want it shown.
  3. If PF keeps returning with no obvious power event, your home circuit has a problem — call a licensed electrician.
  4. Persistent PF after an electrician confirms clean power means the control board needs replacement.

More Whirlpool Microwave Codes

AccuPop Fail AccuPop Fail — Popcorn Sensor Fault Demo Demo Mode — Not Heating Door Door / Open Door Closed — Safety Reminder F1E4 F1E4 — Appliance Control Board Fault F1E5 F1E5 — Inverter Internal Fault F2 F2 — Keypad / Control Fault

All Whirlpool codes → All microwave codes →

Verified against manufacturer documentation: producthelp.whirlpool.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.