Thermador Range Error Code 22

Error code 22 on a Thermador range is indicated by the first LED blinking twice followed by the second LED blinking twice. It represents a fault condition detected by the range's control system, referenced in the unit's internal fault chart. The specific subsystem involved is not fully detailed in available documentation, so a systematic diagnostic inspection is recommended. A technician should check the control board, wiring harnesses, and any connected sensors.

It is generally not recommended to continue using a range that is actively displaying a fault code, as the underlying issue may affect the safety or proper operation of the appliance. Depending on the component involved, continued use could pose a risk of improper heating, ignition issues, or further damage to control components. Discontinue use and have the fault diagnosed before operating the range again.

Power cycling the range by disconnecting it from power for several minutes may temporarily clear the blink-code display if the fault was caused by a transient issue such as a power fluctuation. However, if an underlying component failure is present, the code will return once the appliance is powered back on and the fault condition is detected again. A reset should be considered a diagnostic step, not a repair solution.

Some causes of this code, such as a loose wiring harness connector, can be addressed by a knowledgeable DIYer comfortable working with appliance electronics after disconnecting power. However, if the fault involves a failed control board, a temperature sensor, or an ignition module, replacement parts and proper testing equipment are needed. If you are not confident working inside the appliance, it is best to contact a qualified appliance technician.

Repair costs vary depending on the root cause identified during diagnosis. A wiring or connector fix may cost relatively little beyond a service call fee, typically in the range of $75 to $150 for the visit. If a control board or ignition module needs replacement, total costs including parts and labor can range from $200 to $600 or more depending on the specific component and your location.