Thermador Cooktop Error Code E0116

E0116 indicates a communication error or poor quality communication between the left ADB (Analog Driver Board) and the power board on a Thermador induction cooktop. The fault points specifically to the wiring harness connecting these two boards as the first area to inspect. The cooktop's control system monitors this communication link continuously and triggers the code when the signal is absent or degraded. Left-side induction zones may be disabled while this fault is active.

You should not continue using the cooktop while E0116 is active. The error indicates a loss of proper communication between critical control components, and the affected induction zones may not respond correctly to commands. Operating the cooktop in this condition could lead to unpredictable behavior or failure to shut off properly.

If the fix is simply reseating a connector, there may be no parts cost, though a technician's diagnostic and labor fee typically ranges from $100 to $200. If the wiring harness needs replacement, parts and labor combined can range from $150 to $350. A failed ADB or power board is the most expensive scenario, with total repair costs potentially ranging from $300 to $600 or more depending on parts availability and labor rates in your area.

A careful DIYer comfortable working inside appliances can perform the initial diagnostic step, which involves inspecting and reseating the wiring connectors between the ADB and the power board. If the harness is simply loose or misconnected, this may resolve the error without any parts. However, if the harness is damaged or a board has failed, repair becomes more involved and a qualified appliance technician is recommended.

A power reset by turning off the circuit breaker for 60 seconds and restoring power may temporarily clear the display, but if the underlying wiring or board fault is still present, the code will return. A reset does not repair a loose connector, damaged harness, or failed component. The root cause must be identified and corrected for the error to stay cleared.