KitchenAid Range Error Code F6 E5

The F6 E5 error code on a KitchenAid range indicates that the electronic oven control board has not been programmed with the cavity size for the oven. This is a configuration-level fault rather than a hardware failure. The control board requires this programming to properly regulate oven temperature, heating element operation, and cooking algorithms for the specific oven cavity it is installed in. Without this data, the control cannot operate the oven safely or accurately.

This error most commonly appears after a control board has been replaced with a new or refurbished unit that has not yet been configured for the specific model. It can also surface after a power interruption or firmware reset that clears the stored configuration data. When F6 E5 is active, the control should automatically power up in Cavity Size Select mode, which is the built-in setup interface for entering this required parameter.

To resolve the fault, the technician uses key #6 (labeled DOWN) to scroll downward through available cavity size options and key #3 (labeled UP) to scroll upward. Once the correct cavity size corresponding to the installed range model is displayed, pressing START saves the selection and the control stores the configuration. After a successful entry, the error code should clear and the oven should resume normal operation. If the code returns after programming, the control board itself may be failing to retain data, which would indicate a board replacement is needed.