Bosch Oven Error Code F111

F111 on a Bosch oven means the control board has detected a runaway temperature condition, with the upper or single oven cavity exceeding 650°F. This is a safety fault designed to stop operation before temperatures reach a dangerous level. The cause may be as simple as the oven being powered on while still hot, or it may point to a failed temperature sensor or a heating element relay that is stuck in the on position.

No, you should not continue using the oven while F111 is active. The code indicates that the oven temperature has exceeded a safe threshold, and if a relay is stuck on or a sensor is malfunctioning, continued operation could result in further overheating. Turn the oven off, disconnect power if possible, and allow it to cool before investigating the cause.

Repair costs depend on the root cause. A replacement oven temperature sensor typically costs between $20 and $60 for the part, plus labor if a technician is hired. If the fault lies with the control board due to a stuck relay, control board replacements can range from $150 to $350 or more for the part alone, with labor adding to the total. Getting a diagnostic visit from a certified technician will give you a more accurate estimate based on your specific model.

If the error was triggered by turning the oven on while it was still hot from a previous use, you can resolve it yourself simply by letting the oven cool completely and then restoring power. If the code returns during normal operation, further diagnosis involving the temperature sensor and control board relay is needed. Replacing a temperature sensor is a repair many experienced DIYers can handle, but a stuck relay typically requires replacing the control board, which involves working with line voltage and is best handled by a qualified technician.

A power reset may clear F111 temporarily, especially if the fault was caused by turning the oven on while still hot. However, if the underlying cause is a defective temperature sensor or a stuck heating element relay, the error will return once the oven is operated again. A reset alone is not a fix and should only be the first step in diagnosing whether the fault is persistent.