Mike S Corpus Christi , TX August 09, 2015 Appliance: Hot Point Dryer HTDX100EM2WW Hot Point Dryer Htdx100em2ww / : Timer knob replacement. How to replace Knob Clip. I received the replacement parts on time. All three parts were the correct ones needed to fix the problem. The job took about 20 minutes. No problems. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes