Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.
Initially, a lighted red stat6usd LED almost always indicatre an internal hardware issue.
Are you then considering a DIY (do-it-yourself) repair approach?
Still, have you re-checked the doors/covers?
Have you installed the Smart Panel Utility in your computer?
This is a diagnostic program for the CLP-310 series and it would point to the most likely error / part thgat has failed.
Post back how things turned up and/or should additional information be needed.
Please click HERE for Samsung's Smart Panel Utility.