Thermador Cooktop Error Code E0337

E0337 indicates a fault with the NTC temperature sensor connected to the right ADB (Appliance Drive Board) at the front of the cooktop. This sensor monitors temperature and feeds data to the board for safe heat regulation. The error means the board is not receiving a valid signal from the sensor, either because the sensor is disconnected, the wiring is damaged, or the sensor itself has failed. This error code applies only to North American versions of Thermador cooktops.

Operating the cooktop with an active E0337 fault is not recommended. The NTC sensor provides temperature feedback that the control board uses to regulate heat output safely. Without a reliable sensor signal, the cooktop cannot accurately manage temperatures on the affected zones, which could lead to uncontrolled heat levels. It is best to stop using the affected zones until the fault is diagnosed and resolved.

Repair costs vary depending on what component is at fault. If the issue is simply a loose connector, there may be no parts cost, though a service call fee will still apply if a technician is involved. Replacing the NTC sensor typically falls in a lower parts cost range, while replacing the right ADB can be significantly more expensive. In total, professional diagnosis and repair for this type of fault commonly ranges from around $150 to $500 or more depending on parts needed and labor rates in your area.

A knowledgeable DIYer can start by checking whether the NTC sensor connector is properly seated at the right ADB, which requires accessing the interior of the cooktop. If the fix involves replacing the wiring harness, the NTC sensor, or the ADB itself, those tasks are more involved and may be better handled by a qualified appliance repair technician. Always disconnect power to the cooktop before inspecting any internal components.

Resetting the cooktop by cutting power at the breaker for a few minutes may temporarily clear the error display, but it will not fix the underlying problem. If the NTC sensor is still disconnected, damaged, or defective, the fault code will return once the cooktop powers back up and attempts to read the sensor. A proper repair addressing the root cause is required to permanently clear E0337.