Customer Questions and Answers for Oven Sensor Assembly by Whirlpool

Hello John, The E3 F3 does indicate that the electronic oven control board detects that the oven had an over-temperature condition. This is likely caused by a bad oven temperature sensor WPW10181986 since it only occurs when the temperature is above 400 degrees.There is a chance that the electronic oven control (EOC) WP8523665 is bad but this is less likely than having a bad sensor since the sensor is exposed to a great deal of heat and electrical components fail more quickly when exposed to extreme heat. A bad wiring harness between the sensor and the control board could also cause this problem. If you have a test meter, you can discontinue the power supply at the breaker and check the resistance of the sensor probe. At room temperature (75 F), the sensor should measure about 1080 ohms. If you place the sensor in a glass of ice water at 32 F, it should measure about 1000 ohms. If the resistance is more than 10% off, the sensor will need to be replaced.