Sonaye M Delmar , NY October 25, 2014 Control know assembly I had to subsitute the needle nose pliers for scissors for this to work. However, after watching the video on how to change the knob it saved me 75.00/hr for a 4.00 part that took me not even 5 minutes to put on. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes