KitchenAid Oven Error Code E3 or E64

E3 or E64 on a KitchenAid oven indicates an electronic control malfunction, meaning the main control board has detected an internal fault. The control board manages all oven functions including temperature control, element switching, and the user interface. This code signals that the board is no longer operating correctly and typically requires replacement to restore normal oven function.

It is not recommended to continue using the oven when this code is active. An electronic control malfunction means the board that regulates temperature and controls heating elements may not be functioning reliably. This could result in uncontrolled heating or an inability to shut off elements properly. Disconnect power to the oven until the repair is completed.

The cost of repair depends primarily on the price of the replacement control board and whether you hire a technician. Control boards for KitchenAid ovens typically range from around $150 to $400 or more depending on the model. If you hire a professional technician, labor costs can add another $100 to $200 to the total. DIY replacement can keep costs limited to the part price alone.

A knowledgeable DIYer can attempt to fix this by first checking that all wiring harness connectors to the control board are secure and free of corrosion. If the connections are intact and the code persists, replacing the control board is the recommended repair. Control board replacement requires disconnecting power, accessing the rear or console panel, and swapping the board, which is a manageable repair for someone comfortable working on appliances. If you are unsure about working with electrical components, a qualified technician should handle the replacement.

A hard reset, performed by disconnecting the oven from power for several minutes and then restoring power, may temporarily clear the code if the fault was caused by a microprocessor lock-up. However, if the control board has a genuine internal hardware failure, the code will return after the reset. A persistent E3 or E64 code after a reset confirms the board needs to be replaced.