Thermador Cooktop Error Code E0145

Error code E0145 on a Thermador induction cooktop indicates a fault detected by the left ADB (Auxiliary Driver Board) during its self-check routine of the induction module's temperature sensor circuit. The ADB continuously monitors the temperature sensor integrated within the left induction module to protect the unit from overheating and to regulate cooking power. When the ADB detects an out-of-range signal, an open circuit, or a short in that sensor circuit, it logs E0145 and disables the affected zone to prevent damage.

The ADB itself is the primary suspect in this fault, as the error code specifically identifies the board as faulty rather than pointing to an isolated sensor wire or the induction module alone. The ADB interprets all sensor data for the left cooking zone, and an internal failure on the board can produce false sensor readings that trigger this code even when the physical temperature sensor and its wiring are intact. This is why the first diagnostic action is direct replacement of the left relay board (ADB) rather than beginning with sensor continuity checks.

Potential causes include a failed ADB with degraded signal-processing components, damaged wiring or connectors between the ADB and the induction module's temperature sensor, or in some cases an actual failure of the temperature sensor embedded in the induction module. Technicians should inspect all harness connectors at the ADB and the induction module for corrosion, heat damage, or loose pins before condemning either component, though the ADB remains the most probable point of failure given the code's diagnostic guidance.