Gloria S Dunwoody , GA January 27, 2015 Appliance: Model JENN-AIR PROFESSIONAL RANGE Broken knob and lost screes for the oven door The knowb was extremelly easy, just plug in. The oven door was trickier as I had to open the door -- needed a special tool that I got from homedepot-- once opened, it was pretty easy to screw the oven handle back into place. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes