Jerid J Lake Forest , CA November 02, 2015 Appliance: Jenn-Air Self Cleaning Slide-In Gas Range JGS8850ADW Jenn-Air Range Jgs8850adw: F3 1 error code and intermittent clock reset to 12:00. How to replace Clock W/ Harness. Replaced Clock with Harness, "control board".. Fix was fairly easy.. Button panel ribbon connection to the board was a bit tricky until I realized the ribbon did not have a terminal end an it simply slipped into the connector on the board and then latched shut. Problem/s appear to be resolved. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes