John C. G Placerville , CA April 10, 2018 Appliance: Model KENMORE DRYER Plastic knobs disintegrated on dryer due to sun exposure Called AppliancePartsPros who told me what I needed and even placed the order for me. Voila, that simple. Read More... 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes