Thermador Oven Error Code F

An F code on a Thermador oven is always followed by two digits, and the combination indicates a specific fault in the signals being sent to or received by the electronic control board. The two-digit number pinpoints which circuit or component is involved. The F prefix alone is a category indicator, not a complete diagnostic code, so noting the full code is important for any service call.

It is not recommended to continue using the oven while an F fault code is active. The code indicates that the control board is receiving an abnormal signal, which means the oven may not heat correctly or may behave unpredictably. Turn the unit off until the cause has been identified and resolved.

A knowledgeable DIYer can perform some basic checks, such as inspecting wiring connectors for looseness or corrosion and testing the oven temperature sensor for correct resistance values. However, because F codes on Thermador ovens involve electronic control board signals and the fault varies by the two-digit suffix, full diagnosis often requires specialized tools and familiarity with the specific model. Contacting an authorized servicer is recommended if the power reset does not resolve the issue.

Yes, a power reset can clear the code if the fault was caused by a temporary electrical disturbance such as a power surge. Press the OFF button or turn off the circuit breaker, wait at least 3 minutes, then restore power. If the F code reappears after the reset, there is an underlying component or wiring issue that requires professional diagnosis.

Repair costs vary significantly depending on which component is at fault. A temperature sensor replacement typically falls in the range of $100 to $250 including parts and labor, while a control board replacement can range from $300 to $600 or more depending on the specific model and labor rates in your area. Getting a diagnostic visit first will clarify which part is needed before committing to a repair.