Electric stove. I was cooking on my electric stove top. When I finished I turned the dial to off.

Question

I was cooking on my electric stove top. When I finished I turned the dial to off. I started cleaning up the kitchen and notice the one of the burner was still on, I turned the k**b again and the burner was still on. I unplugged the stove from the wall for about 10 minutes. When I plugged it back up to the wall, the burner came back on. The dial is on the off position.