My range began smoking out of the back during preheating of the oven and made scratching noises. Kenmore Model 95014102. Turned the oven off. Turned it back on after a few minutes and it appaered to be preheating properly. After several minutes it beeped several times and displayed error codes E2 and F3. The Broiler Element began to glow bright red. I then turned the unit off at the Breaker Panel as it was diffilcult to unplug quickly.