It might need to be replaced but FIRST you should do a REFRESH or RRESET. This will reinstall a fresh copy of Windows. You would have to reinstall any Desktop Apps such as MS Office and things you have downloaded from the Internet so you should make sure you have any needed files and Keys for them.
Assuming you are logging in with a "Microsoft Account" your settings and Store Apps will sink back to your device.
Also make a note of your Computer Name so you can set it the same when prompted... its not a big deal but makes a couple things smoother IMO.
Id recommend you BACKUP your files to a USB drive just for safety especially if you do the Reset. If you do the Refresh it will reinstall Windows and Keep your Files on the Disk a Reset wipes everything and reinstalls to factory setup.
Do you have a lot of Desktop apps installed, or stored a lot of files on your Surface?