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Error code reference

Maytag Dryer Error Code F1E3

Incorrect controller installed (electric models only); ACU and/or UI part number does not match the dryer…

Maytag codesMaytag dryer codes

Incorrect controller installed (electric models only); ACU and/or UI part number does not match the dryer model.

First step from the service manual

Verify that the part numbers of the ACU and the User Interface are correct for the dryer model; replace the ACU and/or UI that does not match.

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

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
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What F1E3 means on a Maytag dryer

The F1E3 error code on a Maytag electric dryer indicates a controller mismatch, meaning the Appliance Control Unit (ACU) and/or the User Interface (UI) board installed in the dryer do not match the specific model they are controlling. This is a configuration-level fault, not a sensor or component failure. The dryer's control system performs a part number verification during operation, and when the installed ACU or UI carries a part number that does not correspond to the dryer model, the F1E3 code is triggered. This error applies exclusively to electric dryer models.

This mismatch most commonly occurs after a repair in which an incorrect replacement ACU or UI board was installed. It can also occur if a control board from a similar-looking but different model was substituted during a prior service call. Even boards that appear physically compatible may carry different firmware or calibration profiles, causing the dryer to reject them as incompatible. The ACU and UI communicate with each other and cross-reference model data, so a mismatch in either component can trigger this fault.

Diagnosing F1E3 requires verifying the part numbers printed on both the ACU and the UI board against the part numbers specified for the dryer's model number. The model number is typically found on a label inside the door opening. If either board carries an incorrect part number, that board must be replaced with the correct one. Simply resetting the control will not resolve this error because the underlying hardware mismatch remains present until the correct parts are installed.

Source: manufacturer service documentation.

Common causes of F1E3

  1. 01

    Wrong ACU installed during a prior repair

    Part replacement

    A replacement Appliance Control Unit with an incorrect part number was installed, likely from a similar but incompatible model. Check the part number on the ACU against the correct number for the dryer's model.

  2. 02

    Wrong User Interface board installed

    Part replacement

    A UI board with a part number that does not match the dryer model was installed, possibly sourced from a different model in the same product family. Verify the part number printed on the UI board against the dryer's model number specification.

  3. 03

    Mismatched ACU and UI combination

    Part replacement

    Both boards may have been replaced at different times, resulting in a combination that does not match each other or the dryer model. Both part numbers must be verified and compatible simultaneously.

  4. 04

    Refurbished or pulled part with incorrect firmware profile

    Part replacement

    A used or refurbished board sourced from a different model variant may carry the wrong internal configuration even if it looks physically identical. Part number verification is the only reliable way to confirm compatibility.

See the test procedure for each cause

Frequently asked questions about F1E3

What does F1E3 mean on a Maytag dryer?
F1E3 indicates that the Appliance Control Unit (ACU) and/or the User Interface board installed in the dryer does not match the dryer's model. This is a controller mismatch error that applies only to electric dryer models. The dryer detects the part number discrepancy during operation and displays this code to flag the incompatibility.
Will resetting my Maytag dryer clear the F1E3 error?
No, resetting the dryer will not clear the F1E3 code. Because the error is caused by a hardware mismatch between installed control boards and the dryer model, the fault will return immediately after any reset. The only way to resolve it is to install the correct ACU and/or UI board with matching part numbers.
How do I fix the F1E3 error on my Maytag dryer?
To fix F1E3, locate the model number of your dryer (found on the label inside the door opening) and verify that the part numbers on both the ACU and the User Interface board are correct for that model. Any board with an incorrect part number must be replaced with the properly matched component. If you are unsure which board is the source of the mismatch, both should be verified before purchasing parts.
Is it safe to use my Maytag dryer when it shows F1E3?
A dryer displaying F1E3 has a controller mismatch that means it is not operating with the correct control configuration for its model. Running the dryer in this state is not recommended, as the mismatched controller may not properly regulate heating cycles or safety shutoffs. The error should be resolved before regular use continues.
How much does it cost to fix a Maytag dryer F1E3 error?
The cost depends on which component requires replacement. A replacement ACU or User Interface board for a Maytag dryer typically ranges from $80 to $250 or more per board, depending on the specific model. If professional installation is needed, labor costs will add to that total. Confirming the exact part numbers before purchasing is critical to avoid repeating the same mismatch error.

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