KitchenAid Oven Error Code F09

F09 indicates a UI SPI memory error, specifically a CRC mismatch between data written to and read from the user interface control board's internal SPI memory. This is a data integrity fault internal to the UI board. It can be triggered by power anomalies, memory chip degradation, or a failed UI control board.

An F09 error points to a failure in the user interface control board's memory system, which can affect how the oven receives and processes commands. It is not advisable to continue using the oven until the error is resolved, as the control board may not reliably manage oven functions including temperature regulation and shutoff.

Repair costs depend on whether the fix requires a UI control board replacement. Parts alone for a UI control board typically range from around $100 to $300 or more depending on the specific model. If a technician is hired for diagnosis and installation, total repair costs including labor often fall in the range of $200 to $500. A reset that resolves the issue costs nothing beyond your time.

You can attempt a hard reset first by disconnecting power to the oven at the circuit breaker for several minutes, then restoring power. If the error clears and does not return, the issue may have been a one-time memory glitch caused by a power event. If F09 returns, the UI control board likely needs replacement, which is a more involved repair that many experienced DIYers can perform but may warrant a professional technician.

A hard reset by cutting power at the breaker for several minutes may clear the F09 error if it was caused by a temporary memory corruption event such as a power surge. However, if the SPI memory chip or UI control board has physically degraded, the error will return after the reset. A reset that does not hold is a strong indicator that board replacement is needed.