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Error code reference

Jenn-Air Oven Error Code F1E5-E

Secondary ACU fault

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Secondary ACU fault — ACU Convect 2 Element Relay or Triac 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-E means on a Jenn-Air oven

The F1E5-E error code on a Jenn-Air oven indicates a secondary ACU (Appliance Control Unit) fault related specifically to the Convect 2 element relay or triac being detected as open. The ACU is the main electronic control board that manages oven functions, and it monitors the electrical continuity of the relays and triacs that switch power to the heating elements. A relay or triac in the open state means the switching component is failing to close the circuit, which prevents the convection element from receiving power.

This fault falls under the secondary ACU category, meaning the control board itself has flagged an internal or connected circuit failure associated with the convection heating element's switching path. The relay or triac responsible for the Convect 2 element is either physically damaged, not receiving the correct control signal, or the wiring between the control board and the element is compromised. An open condition in a relay or triac is different from a short: it means the circuit is broken rather than fused closed.

The most logical starting point is to cut power to the appliance completely before inspecting any connections. Loose, corroded, or unplugged connectors at the main control board are a frequent cause of this fault and should be checked before assuming the board itself has failed. If connections are secure, the fault likely points to a failed relay or triac on the ACU itself, or a break in the wiring harness leading to the convection element.

Source: manufacturer service documentation.

Common causes of F1E5-E

  1. 01

    Loose or disconnected wiring connectors at the ACU

    Wiring / connection

    A connector that has vibrated loose or was not fully seated at the main control board can cause the ACU to read an open circuit on the Convect 2 relay or triac. Inspect all connectors at the control board after disconnecting power.

  2. 02

    Failed relay or triac on the ACU

    Part replacement

    The relay or triac on the control board that switches power to the Convect 2 element can fail in an open state due to age, overheating, or electrical stress. This internal board failure typically requires replacing the entire ACU.

  3. 03

    Damaged or broken wiring harness

    Part replacement

    A break, burn, or pinched section in the wiring harness between the control board and the convection element can create an open circuit condition that the ACU interprets as a relay or triac fault. Inspect the harness routing for visible damage.

  4. 04

    Failed convection heating element

    Part replacement

    If the Convect 2 heating element itself has failed open, it can cause high resistance or no continuity in the circuit, which the ACU may flag as a switching component fault. The element can be tested with a multimeter for continuity.

  5. 05

    Corroded or burned connector terminals

    Wiring / connection

    Heat and moisture over time can corrode the metal terminals inside connectors at the control board, increasing resistance to the point where the ACU reads an open circuit. Inspect terminals closely for discoloration or oxidation.

See the test procedure for each cause

Frequently asked questions about F1E5-E

What does F1E5-E mean on a Jenn-Air oven?
F1E5-E is a secondary ACU fault indicating that the Convect 2 element relay or triac on the main control board has been detected as open. This means the switching component responsible for sending power to the second convection heating element is not completing the circuit. The oven may not function properly in convection modes until the underlying cause is resolved.
Can I fix the F1E5-E error on my Jenn-Air oven myself?
A knowledgeable DIYer can start by unplugging the oven and inspecting all wiring connectors at the main control board for loose or unplugged connections, which is the recommended first diagnostic step. If connectors are secure, the repair typically involves testing the wiring harness and convection element for continuity, and potentially replacing the ACU. Replacing a control board requires comfort working with appliance wiring and electronics, so a professional technician is advisable if you are unsure.
Is it safe to use my Jenn-Air oven with an F1E5-E error code displayed?
Using the oven in standard bake mode may be possible depending on which elements are affected, but convection cooking functionality will likely be unreliable or completely unavailable. It is not recommended to continue using the oven normally until the fault has been diagnosed, as an open relay or triac could indicate a broader control board issue. Always disconnect power before inspecting any components.
Will resetting my Jenn-Air oven clear the F1E5-E error code?
Disconnecting power for several minutes may temporarily clear the fault display, but if the underlying cause such as a failed relay, damaged wiring, or faulty ACU is still present, the code will return when the oven is used again. A reset should be used as a diagnostic step to see if the fault is intermittent, not as a permanent solution. The root cause must be identified and repaired to fully resolve the error.
How much does it cost to repair a Jenn-Air oven showing F1E5-E?
If the fix is as simple as reseating a loose connector, there may be little to no parts cost, though a service call from a technician typically runs between $75 and $150 just for the visit. If the ACU needs to be replaced, total repair costs including parts and labor generally range from $300 to $600 or more depending on the specific model and local labor rates. Replacing only the convection element, if that turns out to be the fault, is usually a less expensive repair in the $100 to $300 range.

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