My Book won't mount to desktop

Had a power outage and My Book won’t mount to the desktop. Running 10.9.5. Disk utility sees it. Won’t mount it and says it needs to be repaired, but won’t repair it. My book still is doing it’s thing, light blinks and shuts down when Mac does. How do I fix this? Will I lose all my files? Please help!

Thank you!

Welcome to the WD Community.

As a recommendation, try using a data recovery software to get your files out of the drive.

Also test the unit on a different system if possible using a different cable.