Check outlet A non-working outlet may be the cause of your oven not turning on. 23 mars 2023 · If your Whirlpool oven isn’t heating up, there are a few common causes: Faulty igniter; Faulty bake element; Faulty broil element; Blown thermal fuse; Incorrectly calibrated temperature; In this guide, I’ll go through every reason why your Whirlpool oven isn’t heating up, and explain what you can do to fix it. I’ll also let you in on.