Jenn-Air Oven Error Code F9E0-0

The F9E0-0 error code on a Jenn-Air oven indicates that the control board has detected a miswire condition on the power cord, specifically a swap between the L2 hot leg and the neutral (N) conductor. This is a 240-volt range, which requires two hot legs (L1 and L2), each providing 120 VAC relative to neutral, and 240 VAC measured between L1 and L2. When the control detects that L2 and neutral are reversed at the terminal block or in the supply wiring, it flags this condition at every power-up cycle until the wiring is corrected.

The detection occurs through the control board's voltage sensing circuitry, which monitors the relationship between the incoming line voltages. Because this check happens at every power-up, the error will return persistently after any reset attempt as long as the miswire condition exists. The root cause is almost always in the power cord wiring connections at the range's terminal block, the household outlet or wire connections at the wall receptacle, or the power cord itself being installed incorrectly.

Before inspecting any wiring, the range must be unplugged or the circuit breaker must be shut off. The first diagnostic step is to confirm that the house supply is correct: a properly wired 240-volt circuit should read 240 VAC between L1 and L2, and approximately 120 VAC between each hot leg and neutral. If the supply voltages are correct, the miswire is located between the receptacle and the control board, most likely at the terminal block inside the range where the power cord connects.