Customer Questions and Answers for Large Element Switch by Whirlpool

Alex, The red on P1 is your L2 supply, the black on P1 is L1 supply. the L1 supply goes from the P2 and jumps across each burner switch then down to the element. So for your supply power you would check for 240 vac from P1 to P2. If no power then check wiring. For the inner element to work you would check from 2 to 4 on the switch for 240 vac when the switch is on single element. If no power then switch is bad. For the inner and outer element you would check from 4a to 2 with switch in the dual setting. If no power then the switch is bad. If there is power at both locations then you would want to check wiring to the element and if ok then replace the wiring. S2 is for the indicator light.