Kenmore Range flat top burner stays on high

I have a Kenmore flat top oven model 665.92023101. The element on light was stuck on so I replaced the infinite switch. The switch didn’t solve the problem so I looked at the heating element and noticed a connector had come loose. I reconnected it and the light went off. The problem I have now is whenever I turn that burner on, it is always on high heat regardless of where the dial is set. Any ideas?