Jason E Sunrise , FL October 28, 2014 Kemore he3t f11 code kept coming up F11 would come up every time when trying to run the diagnostic checks. First replaced the Motor Control Unit hoping that was the problem, but that didn't fix it. F11 would still come up the same as before. So, I ordered the main Central Control Unit, popped it in and no problems since! 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours