Generator displays E24; controller indicates memory or configuration error.

Safety first: Ensure the generator is OFF and cannot start automatically while performing controller programming.

• Attempt soft reset: Use the Genergy controller menu to perform a factory reset or configuration reload if available.
• Re‑enter configuration: Using the installation manual, reprogram key parameters (voltage, frequency, engine type, ATS type) to match the generator.
• Check firmware version: If a firmware update was recently attempted, verify that it completed successfully. Reapply the update if necessary, following Genergy procedures.
• Replace controller if needed: If E24 persists and configuration cannot be saved, the controller's memory is likely defective and the module should be replaced.