Replaced infinite switch. I ordered a switch from APP. The switch did not look like the original one and I was confused as to how to wire it. I called and got help from Beverly, she emailed me a wiring diagram and helpful instructions. It finally dawned on me that understand how the infinite switch works and conducting a continuity test on the switch showed me which wires go to the correct terminals.
The are 5 terminals on most Infinite switches.
Power into the switch comes on the Red and Black wires and go to L1 and L2.Power out of the switch goes through the 2 wires that connect to the burner. One is direct from the switch and the other passes through other components first. The 5th terminal, P, connects to the indicator lamp circuit.
With the switch in the On position:
There should be continuity between L1 (black wire) and wire that goes directly to the burner.
There should be continuity between L2 (red wire) and the other wire that goes to the burner.
There should be continuity between P and L1
PERFORM THIS TEST WITH POWER DISCONNECTED