Jenn-Air Range Error Code F3E0

The F3E0 error code on a Jenn-Air range indicates that the oven temperature sensor circuit has been detected as either open or shorted. The oven temperature sensor, also called an RTD (resistance temperature detector), is a probe typically located at the back wall of the oven cavity. It works by changing its electrical resistance in response to temperature changes, sending that resistance signal back to the electronic oven control board, which then converts the reading into a temperature value. When the control board cannot interpret a valid signal from the sensor, it triggers F3E0.

An open circuit condition means the signal path between the sensor and the control board has been broken, resulting in infinite or unmeasurably high resistance. A shorted circuit means the two wires in the sensor circuit have made unintended electrical contact with each other or with ground, resulting in near-zero resistance. Both conditions prevent the board from accurately reading oven temperature, making it unsafe to operate the appliance without triggering the fault.

The first diagnostic step is to access the Diagnostic Mode on the range and navigate to STATUS SCREEN > OVEN SENSORS to view the live temperature reading from the sensor. If the reading is absent, clearly out of range, or stuck at an extreme value, the fault is active. From there, the investigation focuses on whether the sensor probe itself has failed, whether the wiring harness has been damaged, or whether the connection at the control board has become loose or corroded.