Bosch Oven Error Code E009

E009 means the oven detected a ROM-check failure in the user interface control board during a reset. The ROM stores the firmware the control panel needs to function, and when that check fails, the oven disables all heating elements as a safety measure. The fault points directly to the user interface board, which will need to be replaced to restore normal operation.

The oven's control system automatically disables all heating elements when E009 is active, so there is no risk of unintended heating. However, the oven cannot be used for any cooking functions while this fault is present. Do not attempt to bypass the fault, and have the user interface board replaced before returning the oven to service.

The total repair cost typically depends on the price of the replacement user interface board and any applicable labor charges. Parts alone can range from roughly $150 to $350 or more depending on the specific Bosch oven model. Professional labor adds to that cost, so complete repair estimates from a technician can range from $200 to $500 or higher for complex installations.

The repair requires replacing the user interface control board, which involves disconnecting the oven's power, accessing the control panel assembly, and swapping in a compatible replacement board. Technicians with experience in appliance board replacement can often perform this repair, but it does require working near electrical components, so comfort with that level of work is important. If you are unsure, a certified appliance technician is the safer choice.

No. The E009 fault is caused by a corrupted or failed ROM chip inside the user interface board, and that condition does not change when power is cycled. The ROM-check runs at every reset, so the error will return immediately each time the oven is powered back on. A replacement of the user interface board is required to resolve the fault permanently.