This troubleshooting flowchart for GE Arctica and Profile refrigerators with electronic controls, PSS and GSS models, will hepya hone in on the problem. I can tell you this, though: 90% of the time, this problem is caused by a bad mutha board– that’s the control board that lives in a cubby hole in the back of the box; here’s the part link.
To learn more about your refrigerator, or to order parts, click here.