Thermador Cooktop Error Code E013A

E013A indicates that the left ADB (Automatic Distribution Board) has detected a failure with the inductor activation relay: it cannot properly connect or disconnect one of the left-side induction heating elements. This is a safety fault that prevents uncontrolled or unexpected heating. Diagnosis requires Thermador-specific diagnostic tool 15000560 to run an Inductor Test and identify the specific faulty inductor before inspecting connections to the ADB.

It is not recommended to continue using the cooktop while E013A is active. This fault means the control system cannot reliably turn one of the induction elements on or off, which could result in unexpected heating behavior. The cooktop may have already disabled the affected burner zone, but you should stop use and have the unit serviced before resuming cooking.

Repair costs vary depending on what component is at fault. If the issue is a loose or corroded connector, the cost may be limited to a service call fee, typically in the range of $100 to $200. If the ADB module or an inductor coil requires replacement, total costs including parts and labor can range from $300 to $700 or more, depending on part pricing and local labor rates.

Diagnosing this error accurately requires the Thermador diagnostic tool 15000560, which is typically only available to authorized service technicians. A knowledgeable DIYer can visually inspect inductor harness connectors for looseness or heat damage, but replacing components like the ADB module or inductor coils involves working with high-voltage induction circuitry and is best handled by a qualified technician.

A power reset may temporarily clear the error display, but the underlying fault with the inductor relay circuit will likely cause the code to return once the cooktop attempts to activate the affected burner. A reset is not a fix and should not substitute for proper diagnosis and repair using the Inductor Test procedure.