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Error code reference

Maytag Washer Error Code F2E3

Mismatch of main control and UI

Maytag codesMaytag washer codes

Mismatch of main control and UI – the User Interface identification does not match the expected value in the Main Control Board.

First step from the service manual

See TEST #4: Console and Indicators.

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

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What F2E3 means on a Maytag washer

F2E3 indicates the main control board has detected a mismatch between its own firmware or hardware identification and the User Interface (UI) board. During startup, the main control board and the UI board communicate and verify that they are compatible with each other. When the identification value returned by the UI board does not match what the main control board expects, the machine throws F2E3 and halts normal operation. This check exists to prevent compatibility problems between control components that are not designed to work together.

For homeowners, this error means the two electronic boards that run your washer are not recognizing each other correctly. Think of it as two devices that cannot handshake. This can happen because a UI board or main control board has failed internally, because the wiring connecting them is damaged or loose, or because a replacement part was installed that is not compatible with the existing board. The washer will not complete a cycle while this mismatch is active. Maytag's service documentation directs technicians to start diagnosis with TEST #4: Consoles and Indicators on page 16, which systematically checks communication between these two boards and the wiring harness that connects them.

Source: manufacturer service documentation.

Common causes of F2E3

  1. 01

    Incompatible or incorrect replacement UI board installed

    Part replacement

    If the UI board was recently replaced with a part number that does not match the main control board's expected identification value, F2E3 will trigger every time the washer powers on. Verify that the installed UI board part number is the exact match specified for the washer's model number.

  2. 02

    Faulty or loose wiring harness between UI board and main control board

    Wiring / connection

    A damaged, corroded, or disconnected wire harness between the UI and main control board can corrupt or interrupt the identification signal, causing the main control board to read an unexpected value. Inspecting and reseating all connectors between these two boards is part of TEST #4.

  3. 03

    Failed User Interface (UI) board

    Part replacement

    Internal failure of the UI board can cause it to return an incorrect or no identification value to the main control board, triggering the mismatch error. If wiring checks out and the part number is correct, the UI board itself is the next component to test and potentially replace.

  4. 04

    Failed main control board

    Part replacement

    Less commonly, the main control board itself can fail in a way that prevents it from correctly reading or interpreting the identification signal from a functioning UI board. If the UI board and all wiring pass testing, the main control board should be evaluated as the root cause.

See the test procedure for each cause

Frequently asked questions about F2E3

What does F2E3 mean on a Maytag washer?
F2E3 means the main control board detected that the User Interface (UI) board's identification value does not match what the main control board expects. These two boards communicate at startup to confirm they are compatible, and when that check fails, the washer displays F2E3 and stops operating. The mismatch can be caused by a wiring fault, a failed board, or an incompatible replacement part.
Can I still use my Maytag washer with the F2E3 error code active?
No. F2E3 prevents the washer from completing a wash cycle because the main control board cannot confirm it is communicating correctly with the UI board. Running the machine in this state is not possible under normal operation. The error needs to be diagnosed and resolved before the washer will function again.
How do I fix F2E3 on a Maytag washer?
Start with TEST #4: Consoles and Indicators on page 16 of the Maytag service manual. This test walks through checking the wiring harness connections between the UI board and main control board, verifying board compatibility, and testing board function. If a connection is loose, reseat it. If a recently installed board has the wrong part number, replace it with the correct one. If wiring and part numbers check out, replace the UI board first, then the main control board if the error persists.
How much does it cost to fix the F2E3 error on a Maytag washer?
If the fix is a loose or reseated wire harness connection, there is no parts cost. A replacement UI board typically costs between $80 and $200 depending on the model, and a main control board can range from $150 to $350 or more. Labor from an appliance technician generally adds $100 to $200 on top of parts. Identifying which component has actually failed before ordering parts is worth the time, since replacing both boards without diagnosis can be expensive.
Could an F2E3 error appear after I replaced a part on my Maytag washer?
Yes. F2E3 commonly appears after a UI board or main control board replacement if the new part has a different part number than the one it replaced. Even small hardware revisions between part numbers can cause the identification mismatch that triggers this error. Always confirm the replacement board is the exact part number specified for your washer's full model number before installation.

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