What's Happening

The oven temperature sensor is reading abnormally high — either the oven is genuinely overheating or the sensor has shorted (near-zero resistance, which the board interprets as extremely high temperature).

How to Fix It

Turn off at the breaker immediately and let cool. Test the temperature sensor with a multimeter — should read about 1,080 ohms at room temperature. If very low (near 0), the sensor is shorted. Replace the sensor.

Frequently Asked Questions
What does F3E2 mean on a Whirlpool oven?
F3E2 means the temperature sensor is reading too high. Either the oven is actually overheating or the sensor has shorted and is giving false readings.
How do I test a Whirlpool oven temperature sensor?
Unplug the range, disconnect the sensor at the back of the oven cavity, and measure resistance. It should be about 1,080 ohms at room temperature. Near 0 means it's shorted.
Is F3E2 dangerous on a Whirlpool oven?
If the oven is genuinely overheating, yes. Turn off at the breaker immediately and don't use it until the sensor is tested and replaced if needed.