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Error code reference

Jenn-Air Oven Error Code F1E5-6

Secondary ACU fault

Jenn-Air codesJenn-Air oven codes

Secondary ACU fault — ACU Convect 1 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 F1E5-6 means on a Jenn-Air oven

The F1E5-6 error code on a Jenn-Air oven indicates a secondary ACU (Appliance Control Unit) fault specifically tied to the Convect 1 Element relay or triac being detected as open. The ACU is the main electronic control board that manages oven functions, including the switching of heating elements. The convection element circuit relies on either a mechanical relay or a solid-state triac on the control board to complete the electrical path to the element. When the ACU detects an open condition in this circuit, it means the switching component is not closing properly, interrupting power delivery to the convection heating element.

An open relay or triac means the control board cannot energize the convection element even when commanded to do so. This can result from a failed relay contact that no longer closes, a burned or shorted triac that has failed in the open state, or a wiring fault between the ACU and the element that prevents the circuit from completing. Loose or unplugged connectors at the control board are among the first things to check, as a poor connection can mimic an open circuit condition and trigger this fault code.

Diagnostic work should begin with the power disconnected. A thorough inspection of all wiring harness connectors at the main control board is essential before condemning the board itself. If connections are secure and undamaged, the ACU is the most likely failed component, though the convection element and its associated wiring should also be tested for continuity to rule out an open element or broken wire contributing to the fault.

Source: manufacturer service documentation.

Common causes of F1E5-6

  1. 01

    Loose or disconnected wiring connector at the ACU

    Wiring / connection

    A connector at the main control board that has worked loose or become unplugged can create an open circuit condition that triggers this fault. Inspecting and reseating all connectors at the ACU with power disconnected is the required first step.

  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 1 element may have burned out or failed in the open position. This is a common point of failure on the control board and typically requires full ACU replacement.

  3. 03

    Open or broken convection element

    Part replacement

    If the convection heating element itself has an internal break, it can present as an open circuit to the control board. The element should be tested for continuity with power disconnected to confirm or rule out this cause.

  4. 04

    Damaged or broken wiring in the convection element circuit

    Wiring / connection

    A wire in the harness between the ACU and the convection element that has broken, corroded, or been pinched can produce an open circuit reading. Visual inspection and continuity testing of the wiring harness will identify this condition.

See the test procedure for each cause

Frequently asked questions about F1E5-6

What does F1E5-6 mean on a Jenn-Air oven?
F1E5-6 is a secondary ACU fault code indicating that the Convect 1 Element relay or triac on the main control board is detected as open. This means the control board cannot properly switch power to the convection heating element. The fault points to a failure either within the ACU itself, in the wiring connecting it to the element, or at a connector on the board.
Can I fix F1E5-6 myself without replacing parts?
In some cases, yes. The first diagnostic step is to disconnect power and inspect all wiring connectors at the main control board for anything that is loose or unplugged. Reseating a connector that has worked loose can clear the fault without any part replacement. If the connections are secure and undamaged, a failed component such as the ACU or convection element will need to be replaced, which may require a technician.
Is it safe to use my Jenn-Air oven while F1E5-6 is active?
You should avoid using convection mode while this fault is present, as the convection element circuit has been flagged as non-functional. Standard bake functions using other elements may still operate, but running the oven with an unresolved control board fault is not recommended. Disconnect power and have the oven inspected before continued use.
Will resetting the oven clear the F1E5-6 error code?
Disconnecting power for several minutes and restoring it may temporarily clear the code, but it will return if the underlying fault has not been corrected. A reset does not repair a failed relay, triac, or open wiring circuit. The root cause must be diagnosed and addressed for the code to stay clear.
How much does it cost to repair a Jenn-Air oven showing F1E5-6?
Repair costs depend on the root cause. If a loose connector is the only issue, the fix may cost little to nothing beyond a service call fee, which typically ranges from $75 to $150. If the ACU requires replacement, parts and labor combined can range from $250 to $600 or more depending on the specific model and local labor rates. Replacing a convection element tends to fall in the lower to mid range of that estimate.

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