Reginold C Bonney Lake , WA September 01, 2019 Appliance: Whirlpool Gas Range GS563LXSB1 Whirlpool Range Gs563lxsb1: Oven not heating. How to replace Oven Igniter. Remove and replace the oven gas valve. The operational check was good. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes