Stephen O Emerald Isle , NC August 05, 2022 Appliance: Whirlpool Free Standing Electric Range RF378LXMQ0 Whirlpool Range Rf378lxmq0: 2 bad switches to operate cooking eyes. How to replace Range Surface Element Switch. We ordered new Surface Element Switches and replaced them. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes