Carolyn H La Porte City , IA January 25, 2024 Appliance: Kenmore Gas Range 79072312010 Kenmore Range 79072312010: Oven was slow to preheat and wouldn't maintain temperature. How to replace Gas Range Oven Igniter. After checking the temperature probe resistance and finding it was working, we replaced the bake ignitor. Oven now preheats quickly and maintains temperature. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours