Kristine F Oak Crerk , WI April 28, 2020 Appliance: Model LG, RANGE, Baked items would either burn or under cook. Husband tested the thermistor and didn’t work. Order new LG thermistor and he put it in in under 10 minutes. Our oven was back in business. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes