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Error code reference

Jenn-Air Oven Error Code F1E5-F

Secondary ACU fault

Jenn-Air codesJenn-Air oven codes

Secondary ACU fault — ACU JA Ext Convect 1 or 2 Fan Drive open.

First step from the service manual

Unplug range or disconnect power. Inspect connections to main control for loose/unplugged connectors.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F1E5-F means on a Jenn-Air oven

The F1E5-F error code on a Jenn-Air oven indicates a secondary ACU (Appliance Control Unit) fault, specifically an open circuit condition detected in the JA Extended Convection Fan 1 or Fan 2 drive circuit. The ACU monitors the convection fan motor drive continuously, and when it detects an open in the drive signal path, it logs this fault and typically disables the convection function. An "open" in this context means the circuit is broken, meaning current cannot complete its path through the fan drive system.

The extended convection fan system in Jenn-Air ovens relies on the ACU sending a controlled drive signal to the fan motor. If the wiring harness between the ACU and the fan motor develops a break, or if a connector becomes loose or unplugged at the control board end, the ACU reads the circuit as open and triggers F1E5-F. The fault can also result from a failed fan motor winding that has gone open internally, or from a damaged relay or drive component on the ACU board itself.

Diagnosing this code begins with disconnecting power to the range and carefully inspecting all connectors at the main control board for any that are loose, corroded, or unplugged. After reconnecting any suspect connectors and restoring power, if the fault returns, the wiring between the ACU and the convection fan motor should be traced for continuity, and the fan motor windings should be tested for an open condition. If wiring and the motor check out, the ACU board itself may be the source of the fault.

Source: manufacturer service documentation.

Common causes of F1E5-F

  1. 01

    Loose or unplugged connector at the ACU

    Wiring / connection

    A connector in the wiring harness at the main control board can work loose over time due to vibration or heat. This is the first thing to inspect after disconnecting power, as it is the most common and easiest cause to resolve.

  2. 02

    Broken or damaged wiring in the fan drive circuit

    Part replacement

    The wire harness running from the ACU to the convection fan motor can develop a break or open due to heat exposure, sharp edges, or repeated movement. Tracing the harness and testing for continuity will identify this fault.

  3. 03

    Failed convection fan motor with open winding

    Part replacement

    The fan motor itself can fail internally, with one or more windings going open. This prevents the ACU from completing the drive circuit. Testing the motor windings with a multimeter for continuity will confirm this condition.

  4. 04

    Corroded or damaged connector terminals

    Wiring / connection

    Even if connectors appear plugged in, individual terminals can be corroded, bent, or backed out of the connector housing, creating an open in the circuit. Inspect each terminal carefully after unplugging the connector.

  5. 05

    Faulty ACU control board

    Part replacement

    If the wiring, connectors, and fan motor all test good, the fan drive circuit on the ACU board itself may have failed. A failed relay or drive component on the board can produce an open circuit reading internally.

See the test procedure for each cause

Frequently asked questions about F1E5-F

What does F1E5-F mean on a Jenn-Air oven?
F1E5-F is a secondary ACU fault indicating that the control board has detected an open circuit in the Extended Convection Fan 1 or Fan 2 drive circuit. The ACU monitors the fan drive continuously, and when it cannot complete the circuit, it logs this code and disables the affected fan function. The fault can originate from a loose connector, damaged wiring, a failed fan motor, or a problem on the control board itself.
Can I fix the F1E5-F error code myself?
Yes, in many cases the fix is straightforward. Start by unplugging the oven and inspecting all connectors at the main control board for anything loose, unplugged, or corroded. Reconnecting a loose harness connector is a repair most DIYers can handle. If the problem is a broken wire or a failed fan motor, the repair becomes more involved but is still manageable for someone comfortable with appliance wiring and using a multimeter.
Is it safe to use my Jenn-Air oven when the F1E5-F code is showing?
The oven may still function in bake modes that do not rely on the extended convection fan, but the convection cooking feature will likely be impaired or non-functional. It is generally safe to use the oven in a limited capacity, but running it with a known circuit fault in the fan drive is not recommended for extended periods. Addressing the fault promptly will prevent potential further damage to the control board or wiring.
Will resetting the oven clear the F1E5-F code?
Disconnecting power for several minutes may temporarily clear the code, but if the underlying fault in the convection fan drive circuit is still present, the code will return once the oven is operated. A reset is useful for confirming whether the fault is intermittent, such as from a loose connection that reseats when the harness is disturbed, but it does not repair the root cause.
How much does it cost to repair a Jenn-Air oven showing F1E5-F?
Repair costs depend on the cause. If only a connector needs to be reseated, there may be no parts cost at all. A replacement convection fan motor typically runs in the range of $50 to $150 for the part. If the ACU control board has failed, board replacement can range from $150 to $400 or more for the part alone. Adding professional labor costs generally puts the total repair between $150 and $600 depending on the specific fault and your location.

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