Thermador Range Error Code E6

The E6 code means the oven detected an over-temperature condition during cooking or self-clean mode, with the cavity temperature exceeding 635 degrees Fahrenheit. This is treated as a thermal runaway event, meaning heat continued to build beyond what the control system commanded. The oven shuts down as a safety precaution, and the code clears once the temperature drops below the threshold and the selector switch is turned off.

The E6 code will clear on its own once the oven cools below the runaway temperature threshold and the selector switch is turned off. However, clearing the code does not fix the underlying problem. If the faulty component, such as the temperature sensor or control board relay, is not repaired or replaced, the error will return the next time the oven is used.

Repair costs vary depending on the failed component. An oven temperature sensor replacement typically runs in the range of $75 to $200 including parts and labor. A control board replacement is more expensive, often falling in the range of $300 to $600 or more depending on the model. Getting a diagnosis from a qualified technician before ordering parts will help avoid unnecessary expense.

No, you should not operate the oven while E6 is present or until the root cause has been diagnosed and repaired. A runaway temperature event can damage oven components, surrounding cabinetry, or pose a fire risk. Turn the selector to off, allow the oven to cool completely, and have the appliance inspected before using it again.

Start by inspecting the oven temperature sensor, as a shorted or out-of-range sensor is the most common cause of this fault. Check the sensor's resistance and examine the wiring harness connecting it to the control board. If the sensor tests correctly, the next step is evaluating the control board for a stuck relay. Depending on which component has failed, you will need to replace the defective part to resolve the issue.