Thermador Range Error Code F2

F2 on a Thermador range indicates a temperature-related fault that varies by model. On ESC30 and GSC30 models it means a cook or clean runaway temperature alarm. On S, SM, and SMW models it means the oven temperature is still detected as high or the door light is activating more than one hour into a self-clean cycle. On B Range models it indicates the oven temperature sensor is reading an incorrect value.

You should not continue using the oven when F2 is active. The code indicates a temperature control fault that could mean the oven is overheating or the thermal monitoring system is compromised. Operating the appliance in this state carries a risk of a genuine runaway temperature situation. Discontinue use and diagnose the fault before resuming cooking or running another self-clean cycle.

Resetting the range by cycling power at the breaker may temporarily clear the F2 code, but the fault will return if the underlying cause is not addressed. A failed or intermittently faulty sensor, damaged wiring, or poor connector contact will continue to trigger the error. A reset is useful to confirm the fault is active and repeatable, but it is not a substitute for diagnosing and correcting the root cause.

Some DIY repair is possible if you are comfortable working with appliance wiring. The first step is to inspect the molex connector at the oven temperature sensor and cut it out, splicing the wires with wire nuts to restore a solid connection. If that does not resolve the fault, the sensor itself should be tested and replaced if defective. Repairs involving the control board are typically best left to a qualified technician.

Repair costs depend on the root cause. If the issue is only a failed molex connector, the repair can be done at low cost since no parts are needed. A replacement oven temperature sensor typically runs in the range of $20 to $80 for the part alone. If the electronic control board is at fault, parts and labor combined can bring the total to several hundred dollars depending on your location and the specific model.