Todd P Inverness , CA December 24, 2016 Appliance: Kenmore Gas Range 79078632601 Kenmore Range 79078632601: The ovenwouldnt heat ??. How to replace Oven Bottom. I googled 'oven won't heat' with my model #. A few different results led me to believe it was the igniter so, having used appliancepartspros in the past I checked out prices and ordered it. The repair was really straightforward except that the plug was hard to reach in the back of the stove. If I was a guy or had big hands I probably would have had to take the back of the stove off... Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes