Nicole V Glendora , CA January 01, 2024 The knob stripped out The old timer was ruined by me using needle nose pliers to use it. I know, bad. But installing the new timer was a cinch! I was able to switch it out in under 5 mins. And was able to vacuum up all the dust bunnies while back there. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes