Eric W Roseville , CA January 09, 2016 Appliance: Whirlpool 30" Gas Range SF377PEGQ0 Whirlpool Range Sf377pegq0: Oven won't reach or hold temperature. How to replace Oven Igniter Assembly. After reading a lot of similar posts on this website, I decided to chance it and purchase the oven igniter for my Whirlpool as a fairly inexpensive first step to repair. APP had the appropriate part (it's important to go by the model number on the actual oven plate, not the manual. Mine were different from each other) and mailed it quickly. I had already viewed the excellent repair video, so as soon as it arrived, I replaced the part. SO SIMPLE! Maybe 15 minutes. And it worked! My temperature gauge is off by a uniform 10 degrees (use an oven thermometer to check) and I may replace the temperature sensor eventually (another cheap and easy repair), but I'm good for now. The same breakdown occurred for 3 other friends and neighbors, all of whom felt they had to buy a new oven for hundreds of $. Anyone can make this repair. Be sure to watch the video. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes