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Error code reference

Thermador Cooktop Error Code E013C

Left ADB error checking induction module component

Thermador codesThermador cooktop codes
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What the E013C error code actually means

Your Thermador induction cooktop has detected an internal problem with the control board that manages the left cooking zone, specifically a circuit that monitors temperature is not working correctly. This is a board-level failure that generally cannot be repaired by adjusting settings or resetting the unit. A technician will likely need to replace the internal control board on the left side of the cooktop to resolve the issue.

Diagnostic procedure

The full E013C procedure

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First diagnostic step
Replace the left relay board (ADB).
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Most common causes of E013C

Ranked by how often they cause this code
  1. 1Failed ADB internal NTC selection circuit
  2. 2Thermal damage to the ADB
  3. 3Electrical surge or voltage spike
  4. 4Loose or corroded board connector

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Questions people ask about E013C

What does E013C mean on a Thermador cooktop?
E013C indicates that the left ADB (relay board) on your Thermador induction cooktop has detected an error in its internal NTC selection circuit. The NTC selection circuit monitors temperature sensor inputs for the induction module. This is classified as a faulty ADB condition, meaning the board itself is the identified source of the fault. The left relay board will typically need to be replaced to clear this error.
Is it safe to keep using the cooktop while E013C is active?
It is not advisable to continue using the left induction zone while this error is active. The fault is in the circuit responsible for monitoring temperatures in the induction module, which means thermal protection for that zone may be compromised. Continued operation under these conditions could pose an overheating risk.
How much does it cost to repair an E013C error on a Thermador cooktop?
Repair costs will vary depending on the specific cooktop model and labor rates in your area. The left relay board (ADB) itself can range from roughly $150 to $400 or more depending on the model, and professional labor for diagnosis and installation typically adds $100 to $250. Total repair costs commonly fall in the range of $250 to $650.
Can I fix E013C myself without calling a technician?
The first recommended diagnostic step is replacement of the left relay board (ADB), which involves working inside the cooktop and handling electrical components. Technicians with appliance repair experience may be able to perform this replacement, but homeowners without that background should have a qualified technician handle the repair to avoid safety risks and incorrect part installation.
Will resetting the cooktop clear the E013C error?
A power reset may temporarily clear the error display, but it will not resolve the underlying board-level fault. Because E013C points to an internal failure within the ADB's NTC selection circuit, the error will return once the cooktop is back in operation. Board replacement is required for a permanent fix.

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