Thermador Range Error Code F111

F111 indicates a runaway temperature condition in the upper or single oven cavity, where the oven temperature exceeded 585°F or 650°F. The control system shuts down to prevent thermal damage when this threshold is crossed. The fault involves the temperature sensor, power board, P4 connector, or the heating element wiring. The oven must cool below 650°F before power is restored and diagnostics can begin.

A power reset may temporarily clear the F111 code, but the error will return if the underlying cause is not corrected. If the power board relay is stuck or the temperature sensor is faulty, the runaway condition will repeat. Resetting without diagnosing and repairing the root cause is not a reliable fix.

Repair costs depend on which component has failed. A replacement oven temperature sensor typically runs in the range of $30 to $80 for the part alone. A power board replacement is more expensive, generally ranging from $150 to $400 or more for the part, plus labor if a technician is performing the repair. Getting a diagnostic assessment before ordering parts is recommended to avoid unnecessary expense.

No, you should not attempt to use the oven while F111 is active. The error indicates the oven reached a dangerously high temperature, and continued use could cause further component damage or create a fire hazard. Allow the oven to cool completely before inspecting it, and do not restore power until the cavity temperature has dropped below 650°F.

Begin by allowing the oven to cool completely, then inspect and reseat the P4 connector on the control board. Measure the oven temperature sensor resistance, which should read approximately 1080 ohms at room temperature. If the sensor is within spec, the power board is the likely cause and should be replaced. Also inspect the wiring to the heating element for any damage.