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Error code reference

Whirlpool Dryer Error Code F2E3

User Interface and ACU model ID parameter mismatch caused by replacement of either UI or ACU with an…

Whirlpool codesWhirlpool dryer codes

User Interface and ACU model ID parameter mismatch caused by replacement of either UI or ACU with an incorrect part number.

First step from the service manual

Verify correct part numbers for UI and ACU; replace the mismatched component.

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 Whirlpool dryer

The F2E3 error code on a Whirlpool dryer indicates a model ID parameter mismatch between the User Interface (UI) board and the Appliance Control Unit (ACU). These two control components are designed to communicate with each other and verify compatibility during operation. Each board carries embedded model identification data, and when the dryer powers on, the ACU and UI cross-check their stored parameters. If those parameters do not match, the system flags F2E3 and halts normal operation to prevent unpredictable behavior from incompatible components running together.

This error almost always results from a replacement part being installed that does not correspond to the specific model configuration of the dryer. For example, if a technician installs a UI board intended for a similar but different Whirlpool dryer model, the ACU will detect the mismatch during its initialization handshake and trigger F2E3. The same applies in reverse: installing an ACU from a different model variant will produce the same conflict. Even subtle part number differences within the same product line can cause this error, because firmware and parameter sets vary across configurations.

Source: manufacturer service documentation.

Common causes of F2E3

  1. 01

    Incorrect replacement UI board installed

    Part replacement

    A User Interface board from a different Whirlpool model or variant was installed during a repair. Verify the part number on the installed UI board matches the exact part number required for your dryer model.

  2. 02

    Incorrect replacement ACU installed

    Part replacement

    An Appliance Control Unit from a different model was installed, creating a parameter conflict with the existing UI board. Check the ACU part number against the model-specific requirement.

  3. 03

    Parts sourced from a different model appliance

    Part replacement

    Used or salvaged control boards pulled from a visually similar Whirlpool dryer may carry incompatible firmware or model ID data. Even boards that appear identical externally can differ in embedded parameters.

  4. 04

    Both UI and ACU replaced simultaneously with mismatched parts

    Part replacement

    If both boards were replaced at the same time, it is possible that one or both came from an incompatible model variant. Each board must individually match the correct part number for your specific dryer.

See the test procedure for each cause

Frequently asked questions about F2E3

What does F2E3 mean on a Whirlpool dryer?
F2E3 indicates a model ID parameter mismatch between the User Interface board and the Appliance Control Unit. The two boards communicate on startup to verify they are compatible, and when their stored model parameters do not match, the dryer triggers this code. This is almost always caused by one of the boards being replaced with an incorrect part number.
How do I fix the F2E3 error on my Whirlpool dryer?
The fix requires identifying which control board, the UI or the ACU, carries the wrong part number and replacing it with the correct one for your specific dryer model. Locate the part numbers on both boards and cross-reference them against the requirements for your model number. Once the correct, compatible parts are installed, the error should clear on the next power cycle.
Will resetting my Whirlpool dryer clear the F2E3 error?
A reset will not permanently clear F2E3 because the error is caused by a hardware incompatibility, not a temporary communication fault. Each time the dryer powers on, the UI and ACU will repeat their compatibility check and re-flag the error if the part number mismatch still exists. The error will only clear once the mismatched component is replaced with the correct part.
Is it safe to use my dryer when F2E3 is displayed?
The dryer will typically not operate normally while displaying F2E3, as the system halts to prevent unpredictable behavior from incompatible control boards. Attempting to bypass or ignore the error is not recommended, since mismatched control components could behave erratically. The safest course of action is to resolve the part mismatch before resuming use.
How much does it cost to fix a Whirlpool dryer F2E3 error?
The cost depends on which board needs to be replaced. A replacement User Interface board typically ranges from $50 to $200, while an Appliance Control Unit can range from $100 to $300, depending on the specific model. If a technician is hired to diagnose and install the correct part, expect additional labor costs on top of the part price.

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