George S Jenkintown , PA March 28, 2016 Appliance: Model KITCHENAID KESC307HBS4 RANGE Lf dual burner: both burner elements came on when switch was in either single or dual position AppliancePartsPros.com sent me the Technical Education manual for my electric range. Using the manual I was able to remove the control console and test the burners and the switch using an ohmmeter. The Infinite Switch was bad. I replaced the Infinite Switch with part number 8203536 from AppliancePartsPros.com. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes