Thermador Cooktop Error Code E0346

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.

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.

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.

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.

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.