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Error code reference

Maytag Dryer Error Code FC E2

Model and serial numbers stored in ACU and UIC do not match.

Maytag codesMaytag dryer codes

Model and serial numbers stored in ACU and UIC do not match.

First step from the service manual

Check Model/Serial in Help Mode Sub Menu programming.

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

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What FC E2 means on a Maytag dryer

The FC E2 error code on a Maytag dryer indicates a mismatch between the model and serial number data stored in two separate control modules: the Appliance Control Unit (ACU) and the User Interface Control (UIC). Both of these boards independently store identifying information about the specific dryer unit they are programmed for. When the ACU and UIC do not recognize each other as belonging to the same appliance, the control system flags this conflict and prevents normal operation.

This type of error most commonly arises when one of the two control boards has been replaced with a unit that was not properly programmed to match the existing appliance, or when a control board from a different unit is installed. It can also occur if a firmware or programming update was interrupted or applied incorrectly to one board but not the other. In some cases, a corrupted memory state in either the ACU or UIC can cause the stored identifiers to fall out of sync even without any physical board replacement.

The first diagnostic step is to access the Help Mode Sub Menu on the dryer and verify the model and serial number data stored in each control board. If the values do not match, reprogramming or replacing the mismatched board is required. Technicians should confirm which board holds the incorrect data before ordering any replacement parts, as installing the wrong replacement without proper programming will not resolve the conflict.

Source: manufacturer service documentation.

Common causes of FC E2

  1. 01

    Replacement control board not programmed to match appliance

    Wiring / connection

    When either the ACU or UIC is replaced, the new board must be programmed with the correct model and serial number data. If this programming step is skipped or incomplete, the two boards will store conflicting identifiers and trigger FC E2.

  2. 02

    Control board sourced from a different unit installed without reprogramming

    Part replacement

    Installing a used or refurbished ACU or UIC that was previously paired to a different dryer will cause an immediate mismatch. The board will retain the model and serial data from its previous appliance.

  3. 03

    Corrupted memory in ACU or UIC

    Part replacement

    A power surge, voltage spike, or interrupted firmware update can corrupt the stored model or serial data on one of the control boards, causing it to fall out of sync with the other. Checking Help Mode will reveal which board holds the incorrect data.

  4. 04

    Interrupted or failed programming update

    Wiring / connection

    If a control system update was applied to one board but was interrupted before completing, or was never applied to the second board, the two modules may end up storing different version or identifier data.

  5. 05

    Faulty ACU or UIC with data retention failure

    Part replacement

    A failing control board may be unable to reliably retain its stored programming, causing it to periodically lose its model and serial data. If the error returns after reprogramming, board replacement is likely necessary.

See the test procedure for each cause

Frequently asked questions about FC E2

What does FC E2 mean on a Maytag dryer?
FC E2 means the model and serial number data stored in the Appliance Control Unit and the User Interface Control do not match. These two boards must share consistent identifying information to operate together correctly. The error is typically caused by a replaced or improperly programmed control board. Accessing the Help Mode Sub Menu allows a technician to verify what data each board is storing.
Can I fix the FC E2 error myself, or do I need a technician?
Resolving FC E2 requires accessing a diagnostic Help Mode Sub Menu to read and compare the stored data on both control boards, which is a process most homeowners are not familiar with. If the issue is simply a programming mismatch, a knowledgeable technician may be able to reprogram the affected board without replacing any parts. If a board has failed or is holding corrupted data permanently, replacement and reprogramming will be needed. This repair is generally best handled by a qualified appliance technician.
Is it safe to keep using my Maytag dryer when FC E2 is displayed?
An FC E2 error typically prevents the dryer from operating normally, so continued use may not be possible until the issue is resolved. There is no immediate fire or electrical hazard associated with a control board mismatch, but running the dryer with mismatched control data could lead to unpredictable behavior. It is best to address the error before resuming regular use.
Will resetting the dryer clear the FC E2 error code?
A simple power reset will not resolve FC E2 because the mismatch is stored in the non-volatile memory of the control boards, not in a temporary error state. The underlying data conflict must be corrected through proper reprogramming or board replacement. After reprogramming is complete, the error should clear on its own.
How much does it cost to fix the FC E2 error on a Maytag dryer?
If the fix only requires reprogramming an existing control board, the cost will primarily be the technician's labor, which can range from roughly $75 to $150 depending on your location and the service provider. If a control board needs to be replaced, parts costs for an ACU or UIC can range from approximately $100 to $300 or more, plus labor. Getting a diagnostic visit estimate before authorizing repairs is recommended.

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