Kathryn B Huntington Beach , CA September 01, 2015 Appliance: Model DPVH880GJMV Would shut off after about 20 minutes because it would overheat thermistor was bad Removed the cover, found the old part, put the new part in. Fairly simple. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes