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Error code reference

Thermador Cooktop Error Code E0345

Right ADB error checking induction module component: the module's temperature sensor

Thermador codesThermador cooktop codes

Right ADB error checking induction module component: the module's temperature sensor — faulty ADB.

First step from the service manual

Replace the right relay board (ADB).

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What E0345 means on a Thermador cooktop

Error code E0345 on a Thermador induction cooktop indicates a fault detected within the right ADB (Actuator Driver Board) related to the induction module's internal temperature sensor. The ADB is the relay board responsible for controlling power delivery and monitoring critical operating parameters for the right-side induction zone. When the cooktop's control system performs its self-check and receives an out-of-range or absent signal from the temperature sensor circuit on this board, it logs E0345 and disables the affected zone to prevent overheating or uncontrolled operation.

The temperature sensor integrated into the induction module communicates thermal data back to the ADB continuously during operation. A faulty ADB can manifest this error in several ways: the sensor's signal circuit on the board may have failed, solder joints on the board may have cracked due to thermal cycling, or internal components on the ADB that process the sensor input may have degraded. Because the diagnostic points directly to the ADB rather than the sensor wiring harness or the sensor itself, the board is considered the primary failure point.

The first and most direct diagnostic step is replacement of the right relay board (ADB). Before replacement, a technician should visually inspect the board for signs of heat damage, burnt components, or cracked solder joints, and verify that the connector seating the temperature sensor harness to the ADB is secure and free of corrosion. If the error persists after reseating connectors, board replacement is the indicated repair.

Source: manufacturer service documentation.

Common causes of E0345

  1. 01

    Failed right ADB (relay board)

    Part replacement

    Internal components on the right ADB that process the induction module's temperature sensor signal have failed. This is the primary cause identified by the error code, and board replacement is the recommended corrective action.

  2. 02

    Cracked or damaged solder joints on the ADB

    Part replacement

    Repeated thermal cycling can cause solder joints on the ADB to crack, interrupting the sensor signal circuit. A close visual inspection of the board under magnification may reveal lifted or fractured joints.

  3. 03

    Loose or corroded sensor harness connector

    Wiring / connection

    The connector linking the temperature sensor to the ADB may have worked loose or developed corrosion, causing an intermittent or absent signal. Reseating and inspecting the connector is a quick preliminary check before ordering parts.

  4. 04

    Heat damage to the ADB

    Part replacement

    Excessive heat buildup in the cooktop cavity, sometimes caused by blocked ventilation, can damage the ADB's sensor-reading circuitry. Inspect the board for discoloration or burnt areas near the sensor input section.

  5. 05

    Faulty induction module temperature sensor

    Part replacement

    Although the error points to the ADB, the temperature sensor itself embedded in the induction module may have failed and is feeding the ADB a signal outside its acceptable range. If a new ADB does not resolve the code, the module sensor should be evaluated.

See the test procedure for each cause

Frequently asked questions about E0345

What does E0345 mean on a Thermador cooktop?
E0345 means the cooktop's control system has detected an error with the temperature sensor circuit on the right ADB (relay board) that manages the right induction zone. The board is either not receiving a valid signal from the module's temperature sensor or is misreading it. As a safety measure, the cooktop disables the affected zone until the fault is corrected. Replacing the right ADB is the primary recommended repair.
Can I fix E0345 myself, or do I need a technician?
Replacing the right ADB requires working inside the cooktop with the power fully disconnected, and involves handling induction components that store high-voltage charge. A qualified appliance technician is strongly recommended for this repair. Knowledgeable DIYers who are comfortable with appliance electronics can attempt it, but must ensure the unit is fully de-energized and capacitors have discharged before touching any internal components.
Is it safe to use my Thermador cooktop while E0345 is active?
The right induction zone will be disabled while E0345 is active, so it will not operate. The remaining zones may still function, but continued use of the cooktop with an active fault code is not recommended until the underlying board issue has been diagnosed and repaired. Operating with a faulty ADB could risk further damage to related components.
Will resetting the cooktop clear the E0345 error?
A power reset by switching off the circuit breaker for 30 seconds and restoring power may temporarily clear the display, but E0345 will return if the ADB fault is still present. Because this code reflects a hardware failure in the relay board rather than a software glitch, a reset alone will not resolve the underlying problem. A board replacement is required for a permanent fix.
How much does it cost to repair a Thermador cooktop with error code E0345?
Repair costs vary depending on parts availability and labor rates in your area. The right ADB relay board itself typically ranges from around $150 to $350 or more depending on the specific model. With professional labor added, total repair costs generally fall in the range of $250 to $550. Getting a quote from an authorized service provider before proceeding is advisable.

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