Thermador Cooktop Error Code E8206

E8206 indicates that the cooktop's control board detected an error in the thermopile component of the cooking sensor assembly. This check runs automatically after the cooking sensor has been used and the hob is turned off. The thermopile is the thermoelectric element inside the sensor that measures temperature, and when it produces an out-of-range or absent signal, this code is triggered. Replacing the cooking sensor is the recommended first step.

E8206 specifically affects the cooking sensor function, which is used for temperature-guided cooking modes. If that feature is disabled or unavailable while the fault is present, standard manual burner operation may still function. However, continued use without addressing a sensor fault is not recommended, and you should confirm the cooktop operates normally in all other respects before using it.

The cost depends on whether you replace the cooking sensor yourself or hire a technician. The cooking sensor part itself typically falls in the range of $50 to $150 depending on the specific cooktop model. If a service technician is needed, labor costs can add $100 to $250 or more to the total, and costs increase further if the control board is found to be at fault.

A knowledgeable DIYer comfortable with disassembling a cooktop can replace the cooking sensor, which is the primary fix for this error. However, if the error persists after sensor replacement, diagnosing wiring faults or a control board issue is more involved and may warrant a qualified technician. Always disconnect power to the cooktop before performing any repair work.

A power reset may temporarily clear the code from the display, but E8206 will return the next time the cooking sensor is used and the hob is turned off if the underlying thermopile fault has not been resolved. Resetting does not repair the sensor. A proper fix requires replacing the cooking sensor or addressing the identified wiring or component fault.