Dale M Pine Bluff , AR September 08, 2019 Appliance: Whirlpool Gas Range WFG540H0ES1 Whirlpool Range Wfg540h0es1: Burner knob was broken. How to replace Knob (Stl). Put the new one on in the broken one's place. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes