To obtain in-warranty service for your Egnater product, call Egnater at 1-877-EGNATER to obtain a Repair Authorization number. You will need to provide your model name/number and serial number, and will probably be requested to fax a copy of your purchase receipt to them.
Egnater website links:
Egnater main page: www.egnateramps.com
Egnater Warranty statement
WARNING: Do NOT attempt to visit the site "www.egnater.com" . That site is not controlled by Egnater amplification and is reported by major antivirus organizations to contain malware and browser exploits. If you visit that site you may experience damage to your computer or worse.