Stove Burner Gets too hot? But not switch
Somewhat similar models have been recalled in the past, however your model IS NOT listed (yours is Model Number: FEF368GCE, I'm assuming).


  Hazard:  Depending on the model, the surface heating elements can 1) turn on spontaneously without being switched on; 2) fail to turn off after being switched off; or, 3) heat to different temperatures than selected. This poses a fire and burn hazard to consumers. –smoothtoprangerecall.com


I have never worked on, or even used an electric stove. I suggest contacting the manufacturer. I might leave out the part about not using OEM parts, then again that could be the problem... if it's the wrong resistance or something, that could certainly be it.

(perhaps the element is fused or broken, but that's just guess work)