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Error code reference

KitchenAid Microwave Error Code PF

Power failure indicator displayed after installation or power restoration.

KitchenAid codesKitchenAid microwave codes

Power failure indicator displayed after installation or power restoration.

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What PF means on a KitchenAid microwave

The PF code on a KitchenAid microwave is a power failure indicator, not a fault or malfunction code in the traditional sense. It appears on the display automatically after the unit has experienced an interruption to its incoming AC power supply. This includes situations such as initial installation, a tripped circuit breaker, a blown household fuse, a brief utility outage, or the unit being unplugged and reconnected. The microwave's control board detects that power was lost and restored, and it triggers the PF notification to alert the user that the clock and any programmed settings need to be re-entered.

The control board's non-volatile memory retains certain appliance settings, but the real-time clock resets to a default state whenever power is fully interrupted. When power returns, the board runs a startup sequence and flags the PF indicator to prompt the user to set the time and confirm that the unit is operating normally. This is a standard informational display behavior built into the control logic, not a symptom of a damaged component.

In most cases, clearing the PF code requires only pressing the Cancel or Clear button and then resetting the clock using the unit's time-set function. If the PF code returns repeatedly without any obvious power interruption, this could point to an unstable power supply at the outlet, a loose connection at the unit's power cord or terminal block, or in rare cases, a failing control board that is losing power intermittently. Persistent or unexplained PF codes warrant inspection of the outlet voltage and wiring connections.

Source: manufacturer service documentation.

Common causes of PF

  1. 01

    Power outage or utility interruption

    Wiring / connection

    A brief or extended loss of household power will cause the PF code to appear when electricity is restored. This is the most common trigger and requires no repair.

  2. 02

    Initial installation or unit being plugged in

    Wiring / connection

    When a KitchenAid microwave is first installed or reconnected after being unplugged, the control board has no stored clock data and displays PF to prompt setup. This is expected behavior.

  3. 03

    Tripped circuit breaker or blown fuse

    Wiring / connection

    A tripped breaker or blown fuse on the microwave's dedicated circuit cuts power to the unit. After resetting the breaker or replacing the fuse, PF will display on the control panel.

  4. 04

    Loose or intermittent power connection

    Wiring / connection

    A loose connection at the wall outlet, a worn power cord, or a poorly seated terminal connection at the unit can cause repeated or unexplained PF codes. Inspect the outlet and power cord for damage or poor contact.

  5. 05

    Failing control board

    Part replacement

    In rare cases, a control board that is losing internal power intermittently may cause the PF code to appear without any external power interruption. This is typically accompanied by other erratic behavior such as random resets or unresponsive controls.

See the test procedure for each cause

Frequently asked questions about PF

What does PF mean on a KitchenAid microwave?
PF stands for power failure. It is an informational indicator that appears on the display whenever the microwave detects that its power supply was interrupted and then restored. It prompts the user to reset the clock and confirm settings. It does not indicate a defective component.
How do I fix or clear the PF code on my KitchenAid microwave?
Press the Cancel or Clear button to dismiss the PF display, then use the clock or time-set function to re-enter the correct time. Once the clock is set, the code will not reappear unless power is interrupted again. No tools or parts are needed for this process.
Is the PF code on a KitchenAid microwave a safety concern?
No, the PF code itself is not a safety concern. It simply means the clock and any timed programs were reset due to a power interruption. The microwave is safe to use after clearing the code and resetting the clock. If the code appears repeatedly without a known cause, check the outlet and power cord before using the unit.
Will resetting the microwave clear the PF code?
Yes, pressing Cancel or Clear is typically all that is needed to clear the PF code. You will then need to reset the clock. If the code keeps coming back on its own, the issue is likely with the power supply to the unit rather than the microwave itself.
How much does it cost to repair a KitchenAid microwave showing a PF code?
In most cases, there is no repair cost at all since PF is an informational code that clears with a button press and clock reset. If the code is caused by a failing control board, board replacement can range from roughly $100 to $300 or more depending on the model and labor involved. Checking the outlet and power cord for loose connections is a free first step before assuming any parts are needed.

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