Jenn-Air Cooktop Error Code Er 31

Er 31 on a Jenn-Air induction cooktop indicates that the unit's configuration data is incorrect or missing. Induction cooktops rely on stored configuration parameters to define how the control board communicates with and manages the induction modules. When those parameters are absent, corrupted, or set to an incompatible value, the control system cannot properly initialize the induction circuitry and will display Er 31 to flag the mismatch.

This error is most commonly triggered after a control board replacement, a firmware issue, or a power event that corrupts non-volatile memory. The configuration code is a specific value stored in the board's memory that tells the unit what model variant it is and how to manage the induction zones. If this value does not match the expected configuration for that cooktop, the induction system will be disabled until the correct code is programmed.

Diagnosis requires entering the cooktop's service diagnostics mode and reading the current configuration code. The technician must then verify whether the stored code matches the correct value for the specific cooktop model, and if it does not, reconfigure it using the appropriate code. This process is performed through the control interface and does not necessarily require replacing components, though a failing or recently replaced control board is often the underlying reason the configuration was lost in the first place.