The error codes are in your Maintenance manual that you should have received with your CD. We have a Definity G3r release 10, so I look in the Definity ECS Release 10 Maintenance for R10r for this information - Chapter 5 (Alarms, Errors, and Troubleshooting).
Hope this helps. Under certain circumstances, profanity provides a relief denied even to prayer. - Mark Twain