David C Charlotte , NC May 11, 2020 Appliance: General Electric Electric Oven CT9550SH1SS Ge Wall Oven Ct9550sh1ss: F32 error code on GE cafe double wall oven. How to replace Board Machine Control. Replaced control board for lower oven. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours