Wrong Passcode Error
Activating the generator is a simple one-time process that only takes a few minutes. The activation process is necessary for the generator to run automatically. Some users have reported receiving a "wrong passcode" error during the activation process.
Environment
This article applies to Generac home standby generators.
Causes
This typically occurs when the wrong passcode is entered or the wrong serial number was provided.
Troubleshooting
If you receive an error of wrong passcode, please follow these steps.
2. Double-check the activation code is correct and that you are entering it correctly into the controller.
3. Verify the serial number recorded in the controller's firmware. To do this, perform a hard reset as shown in the How Do I Perform a Hard Reset on a Home Standby System? article. The serial number will display briefly after the installation wizard.
If the number on the controller is different than the generator serial number on the printed label, contact a customer experience technical representative at 1-888-436-3722 with the serial number that displayed on the controller. 
