Bosch Oven Error Code F114

F114 on a Bosch oven indicates a runaway temperature fault in the lower oven, where the cavity temperature has exceeded 950 degrees Fahrenheit. The oven shuts down automatically when this threshold is reached as a safety measure. The fault is most commonly caused by a failing lower oven temperature sensor or a heating element relay on the Power Board that has stuck in the on position. Diagnosis should start with an inspection of the P24 connector on the Power Board.

No, the oven should not be used while the F114 fault is active or unresolved. This code indicates the lower oven experienced or is capable of uncontrolled overheating beyond 950 degrees Fahrenheit, which presents a serious fire hazard. Disconnect power to the oven and have it inspected by a qualified technician before resuming use.

Repair costs vary depending on which component has failed. Replacing the lower oven temperature sensor is typically the less expensive repair, with parts and labor generally ranging from around $100 to $250. If the Power Board needs replacement due to a failed relay, total repair costs including parts and labor can range from approximately $250 to $500 or more depending on the specific model and service rates in your area.

Resetting the oven by cutting power may temporarily clear the F114 code, but the fault will return if the underlying problem is not repaired. Because F114 represents an uncontrolled overheating condition, continuing to use the oven without fixing the root cause is a fire and safety risk. A reset should only be used as part of a diagnostic process, not as a permanent fix.

Start by inspecting the P24 connector on the Power Board for loose pins, corrosion, or damaged wiring, and reseat it if necessary. If the connector is secure, test the lower oven temperature sensor for proper resistance output and check the wiring harness for damage. If the sensor tests within spec, the Power Board itself may have a relay stuck in the closed position and may need replacement. Given the safety implications of this fault, professional diagnosis is strongly recommended.