Katherine E San Antonio , TX December 04, 2022 Appliance: Whirlpool Free Standing Electric Range GR445LXMS0 Whirlpool Range Gr445lxms0: The back surface burner worked only intermittently. How to replace Infinite Switch Top Burner Control Switch. Using help from Customer Support, I ordered the Infinite Switch. I was able to install the switch with relative ease after watching the video. And Voila! The burner works fine. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes