I took it apart to troubleshoot. I was pretty sure it was the switch but wanted to make sure it wasn't the element as well. Sure enough the switch was burnt at a little piece of copper protruding out the side. The plastic was blackened too which was a telling sign. The element was fine. I replaced the switch, turned on the cooktop and it worked again. Apparently, these switches are wired in series because when this one went out the rest of them wouldn't turn on either.