KitchenAid Microwave PF Error: Power Failure Notification
What Does KitchenAid Microwave Error Code PF Mean? PF on a KitchenAid microwave stands for Power Failure. It is a notification that the microwave detected a loss of supply power and is letting you know the clock and any running cook cycle have been reset. This is normal behavior, not a fault — any microwave […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Yes. PF is a normal power loss notification and clears with any button press. The microwave is fully functional immediately after clearing the code. Any food that was cooking when the outage occurred should be assessed for safety before consuming.
Can I reset the code?
Yes. Any keypad press clears PF. No breaker reset or service is required for a single PF event.
When to stop immediately?
Stop if you notice: PF appears repeatedly without any known power events, Microwave behaves erratically after clearing PF.
Symptoms You May Notice
Display shows PF or flashing clock
The panel shows PF or flashes 12:00 (or equivalent default time) after electricity is restored, indicating the clock memory was lost during the outage.
Active cook cycle cancelled
Any cooking in progress at the time of the outage was cancelled. The turntable is stopped and food is in whatever state of cooking it had reached before power was lost.
Saved user settings returned to defaults
Clock, auto cook preferences, and any custom settings that depend on the real-time clock may need to be reconfigured after clearing the PF notification.
Possible Causes
Utility grid outage or tripped breaker
Any loss of mains power — from an outage, a tripped breaker, or unplugging the microwave — produces PF when power is restored. This is normal behavior and not a fault.
DIY PossibleLoose power cord at countertop outlet
A partially inserted plug can cause intermittent power interruptions even without any household outage, logging repeated PF events. Firmly seat the plug in a known-good outlet.
DIY PossibleControl board backup capacitor failure
Rarely, the small capacitor that preserves clock memory across brief outages has failed, so even momentary supply dips produce PF. This is a board-level repair.
Requires ProfessionalSafe Checks You Can Do
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1
Press Cancel or Stop to clear PF
Press the Cancel or Stop pad on the keypad. PF clears and the microwave returns to standby mode, ready to accept a new cook cycle. Reset the clock to the current time using the Clock or Time pad.
On OTR models the fan and light may have been left on during the outage — check those controls are off before starting a new cycle.
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2
Verify power cord connection and monitor for recurrence
Make sure the power cord is firmly seated in a dedicated outlet. Monitor for additional PF events over the next several days. Repeated PF without household outages suggests a loose connection or a degraded control board.
A single PF after a storm is normal. Three or more PF events in a week without any outages warrants investigation.
When to Call a Professional
Contact a qualified technician if:
- Repeated PF with no household outages suggests loose outlet or cord
- Control board backup circuit failure after all power supply issues ruled out
- Post-surge PF accompanied by other codes indicates surge damage
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