Thermador Range Error Code 31

Error code 31 on a Thermador range is indicated by the first LED blinking 3 times followed by the second LED blinking 1 time. It signals a fault condition detected by the range's control system. The specific component involved is not detailed in the fault chart beyond the code reference, so professional diagnosis is typically needed to pinpoint the cause.

Operating the range while an undiagnosed fault code is active is not recommended. The code indicates that the control system has detected an abnormal condition, and continued use before diagnosis could worsen the underlying issue or create an unsafe operating situation. It is best to stop using the range and have it inspected promptly.

Repair costs depend on which component is responsible for the fault. A simple wiring harness repair or connector cleaning may cost relatively little in labor, while replacing the main electronic control board can range from several hundred dollars to over a thousand dollars including parts and labor. Getting a diagnostic service call from a qualified technician is the best way to determine the actual cost for your specific situation.

Some instances of error code 31 may be resolved by performing a power reset: disconnect the range from power for several minutes, then restore power and observe whether the code returns. If the code reappears, the fault is persistent and will require hands-on diagnosis of the control board, wiring harnesses, and sensor circuits. Work involving internal electrical components should be performed by a qualified technician.

A power reset, disconnecting the range from its power source for a few minutes and then reconnecting it, can sometimes clear a fault code that was triggered by a temporary power disruption rather than a hardware failure. However, if the root cause is a failed component or damaged wiring, the code will return once the range is back in operation. A reset alone should not be considered a permanent fix.