Thermador Cooktop Error Code F0323

F0323 indicates that the electronics inside the right ADB induction module have overheated. The cooktop automatically shuts off the hobs in that zone as a protective measure to prevent damage to the electronic components. This is a thermal safety response built into the appliance. Allowing the unit to cool down fully is the required first step before investigating further.

No. When F0323 is displayed, the cooktop has already shut off the affected hobs as a safety measure, and you should not attempt to override or bypass this protection. Continuing to operate the cooktop without resolving the underlying cause risks permanent damage to the ADB module electronics. Allow the unit to cool completely before any further use, and investigate the cause if the error recurs.

Start by turning the cooktop off and letting it cool for at least 20 to 30 minutes. Once cooled, verify that the ventilation clearances around the cooktop are not obstructed by cabinets, walls, or accumulated debris. Listen for the cooling fan when you restart the unit; if you do not hear it running, that is a strong clue. If the error returns quickly after a full cooldown, or if you notice the fan is not operating, contact a qualified technician to inspect the cooling system and the right ADB module.

Switching the cooktop off and allowing it to cool for 20 to 30 minutes will often clear the F0323 code if the overheat was caused by a temporary condition such as heavy use or a short-term ventilation issue. However, if the underlying problem is a failing fan, a faulty sensor, or a damaged ADB module, the error will return during normal use. A reset that does not hold is a signal that professional diagnosis is needed.

Repair costs vary depending on the root cause. If the fix is simply clearing a ventilation blockage or adjusting usage habits, there may be no parts cost at all. Cooling fan replacement typically runs in the range of $100 to $250 including parts and labor. Replacement of the right ADB induction module is more involved and can range from $300 to $700 or more depending on parts availability and labor rates in your area.