Jenn-Air Oven Error Code F1EA-1

The F1EA-1 error code on a Jenn-Air oven indicates an over-temperature condition detected at the main ACU (Appliance Control Unit), specifically caused by an open circuit in the ACU's internal temperature sensor. The ACU monitors its own operating temperature to prevent the control board from overheating. When the sensor circuit reads as open, the control interprets this as a potentially dangerous thermal fault and triggers the error to halt operation and protect the electronics.

An open sensor circuit means the temperature sensor has either failed internally, or the wiring and connector path between the sensor and the control board has been interrupted. This differs from an actual overheating event: the fault is a loss of signal rather than confirmed excessive heat. Common causes include a corroded or loose connector at the control board, a broken wire in the sensor harness, or a failed ACU temperature sensor. In some cases, the control board itself has an internal failure affecting the sensor input circuit.

Diagnosis begins with disconnecting power and carefully inspecting all connectors leading to the main control board for signs of looseness, corrosion, or heat damage. If connections are secure and undamaged, the sensor circuit continuity should be tested. If the sensor reads open when measured with a multimeter, the control board or the sensor component itself will need replacement. Because the sensor is typically integrated into the ACU assembly, a failed sensor often requires replacing the entire control board.