If your home standby (HSB) generator won’t exercise or start automatically during an outage, check whether the control panel is set to OFF. Generators in OFF mode won’t run weekly exercises or power on automatically. To restore operation, clear any active error or alarm codes and set the control panel to AUTO. Yellow maintenance reminders don’t prevent the unit from running. This issue is often searched as “generator won’t exercise in off mode,” “standby generator not starting automatically,” or “HSB generator auto mode off.”