mypros+
Error code reference

Thermador Cooktop Error Code E0346

Right ADB error checking induction module component: pot detection sensor

Thermador codesThermador cooktop codes

Right ADB error checking induction module component: pot detection sensor — appliance unable to detect pots correctly.

First step from the service manual

Check the wiring between the PB and the right ADB.

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

MyPros+ Max

Get the full diagnostic procedure for E0346.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What E0346 means on a Thermador cooktop

Error code E0346 on a Thermador induction cooktop indicates a fault within the right ADB (Analog Driver Board) related to the pot detection sensor. The pot detection sensor is a critical component of induction cooking technology: it continuously monitors the presence and position of compatible cookware on the induction coil. When the control system cannot confirm proper cookware detection, it generates this error to prevent uncontrolled energy delivery to the coil. The right ADB serves as the interface between the main power board (PB) and the induction module hardware, managing both power delivery and sensor feedback for the right side cooking zones.

The most immediate diagnostic focus should be the wiring harness running between the PB and the right ADB. Damaged, loose, or corroded connector pins in this harness can interrupt the sensor signal path, causing the control board to register a detection failure even when the hardware itself is intact. Thermal cycling over time can weaken connector retention and cause intermittent or permanent signal loss. Inspecting connector seating, pin condition, and wire continuity along this path is the correct starting point before condemning any board-level components.

If the wiring checks out, the fault likely resides in the right ADB itself or the pot detection sensor circuit integrated within the induction module. Component failure on the ADB, such as a damaged sensor input circuit, can produce a consistent E0346 condition. In some cases the induction module's sensing coil or associated circuitry may be degraded. Repair typically involves either reseating connectors, repairing damaged wiring, or replacing the right ADB assembly.

Source: manufacturer service documentation.

Common causes of E0346

  1. 01

    Loose or disconnected wiring between PB and right ADB

    Wiring / connection

    The harness connecting the main power board to the right ADB may have a loose or unseated connector. Inspect all connectors along this wiring path for proper seating and secure retention.

  2. 02

    Damaged or corroded wiring harness

    Part replacement

    Wires in the harness between the PB and right ADB can suffer insulation damage, pinching, or corrosion at connector pins, breaking the sensor signal path. Visual inspection and continuity testing will identify any breaks or high-resistance connections.

  3. 03

    Failed right ADB (Analog Driver Board)

    Part replacement

    If wiring is intact, the right ADB itself may have a damaged sensor input circuit or other internal component failure. Board-level faults typically require replacement of the ADB assembly.

  4. 04

    Faulty pot detection sensor or induction module sensing circuit

    Part replacement

    The pot detection sensor within the induction module may be degraded or failed, causing the ADB to report no valid cookware signal. This fault would persist even after wiring and board checks are confirmed good.

  5. 05

    Intermittent connector contact due to thermal cycling

    Wiring / connection

    Repeated heating and cooling of the cooktop can cause connector housings to loosen over time, creating intermittent signal loss. This type of fault may appear and disappear with temperature changes and can be confirmed by carefully flexing the harness while monitoring for fault recurrence.

See the test procedure for each cause

Frequently asked questions about E0346

What does E0346 mean on a Thermador cooktop?
E0346 indicates an error in the right ADB (Analog Driver Board) specifically involving the pot detection sensor. The cooktop is unable to correctly detect cookware placed on the right side induction zones. This fault typically originates in the wiring between the main power board and the right ADB, or in the ADB itself. Until resolved, the affected burners will not operate normally.
Can I fix E0346 myself or do I need a technician?
A knowledgeable DIYer can perform the first diagnostic step by visually inspecting the wiring harness and connectors between the PB and the right ADB for obvious damage or loose connections. However, accessing internal cooktop components requires disassembly and work near high-voltage induction circuitry, which carries serious safety risks. If wiring reseating does not clear the fault, board replacement and further diagnostics are best handled by a qualified appliance technician.
Is it safe to keep using my Thermador cooktop with error E0346 active?
The affected right side induction zones should not be relied upon while E0346 is active, as the cooktop cannot confirm proper cookware detection for those burners. Attempting to use a zone with a compromised detection circuit could result in unpredictable behavior. Left side zones unaffected by this error may continue to operate, but a full repair is recommended before resuming normal use of the cooktop.
Will resetting the cooktop clear the E0346 error?
A power reset, such as turning off the circuit breaker for 30 to 60 seconds, may temporarily clear the error display. However, if the underlying wiring fault or component failure is still present, the E0346 code will return once the cooktop is powered and the pot detection circuit is tested again. A reset alone does not fix the root cause and should only be used as part of the diagnostic process.
How much does it cost to repair a Thermador cooktop showing E0346?
Repair costs vary depending on what component is at fault. If only a wiring connector needs reseating or a short harness section needs repair, costs may be limited to a service call fee in the range of $100 to $200. If the right ADB requires replacement, parts and labor combined can range from $300 to $700 or more depending on parts availability and local labor rates. Obtaining a diagnostic estimate from a certified technician before authorizing repairs is advisable.

Related Thermador cooktop codes

All Thermador cooktop codes
View all 129 Thermador cooktop codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass