How can I repair a file Vault disk in El Capitan?

I had force my Macbook shut down recently and I opened disk utility to see if everything was okay. I'm running day El Capitan with a FileVault encrypted drive. Mid-2014 Macbook Pro bought February 2015.

"First aid" running on the external Apple SSD article seems to be OK. It is when I run 'First aid' Macintosh HD said tells me that something is wrong and it needs to be repaired, but there is no repair button. Subsequent executions of "First aid" keep showing that there is a problem, so it doesn't seem to be repaired first aid course.

I tried to start with the command + R to repair the disk, but it let me only apply "First aid" for Apple, not the Macintosh HD SSD. He said that Macintosh HD was not mounted. I guess it's because it is encrypted with FileVault, but I couldn't find how to tell him to decipher or mount the drive to take a peek.

How can I run a repair on the disk? Should I even bother?

Thank you!

To mount, check or repair a disk or a volume that is encrypted with FileVault using disk utility, enter the FileVault password when you are prompted.

Ref: OS X using FileVault with OS X Recovery - Apple Support

Tags: Mac OS & System Software

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