Thermador Cooktop Error Code E0133

E0133 indicates that the left ADB (Advanced Distribution Board) has detected an error with the induction hob configuration relay. The system is unable to properly connect the inductor on the left side to its assigned inverter. This causes the affected burner zone to stop functioning. The fault must be diagnosed by inspecting wiring connections and potentially testing or replacing the ADB or induction module.

You should not attempt to use the affected left-side induction zone while E0133 is active. The cooktop has flagged that it cannot properly control the inductor-to-inverter connection on that side, which means the zone may not operate predictably. Other unaffected zones may still function, but continued use of the faulty zone should be avoided until the fault is resolved.

Repair costs vary depending on the cause. If the fix is simply reseating a wiring connector, labor costs for a service call typically range from $100 to $200. If the ADB or induction module needs replacement, parts alone can range from $150 to $500 or more depending on availability, with total repair costs including labor potentially reaching $300 to $700 or higher. Getting a diagnostic quote from a certified technician before committing to repairs is recommended.

The first diagnostic step, checking that the inductor wiring connectors are properly seated on the left ADB, is something a technically inclined person comfortable working inside appliances may be able to perform. However, accessing the ADB and internal components requires disassembling the cooktop and working near high-voltage parts. If the wiring connections are secure and the fault remains, replacing the ADB or induction module should be done by a qualified technician.

A power reset by turning off the circuit breaker for 60 seconds may temporarily clear the error code, but if the underlying cause is a loose connector, a failed relay, or a defective component, the fault will return during the next use cycle. A reset alone is not a repair. The root cause must be identified and corrected for the error to clear permanently.