Richard W Center Moriches , NY January 07, 2018 Appliance: Jenn-Air Self Cleaning Free Standing Gas Range PRD3030NP Jenn-Air Range Prd3030np: Pre heat would take a very long time. How to replace Bake Element. Simple, replacement of the outer bake element. I used a regular instant read thermometer to see that is for sure the element wasn't heating up and ordered a replacement Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes