Maytag Washer - F2E5 (Top-Load) Error Code

UI/ACU software version mismatch --- the user interface and main control are running incompatible firmware.

Meaning

UI/ACU software version mismatch --- the user interface and main control are running incompatible firmware.

The Maytag F2E5 error code on top-load washers indicates that the user interface (UI) and the appliance control unit (ACU) are running incompatible software versions. Whirlpool-built Maytag top-load washers require the UI and ACU to share synchronized firmware and configuration data. If one board is replaced with a different revision, if firmware becomes corrupted, or if configuration data fails to load correctly, the control triggers F2E5. This prevents the washer from operating with mismatched logic that could cause unsafe or unpredictable behavior.

Symptoms

  • Washer powers on but will not start a cycle
  • F2E5 appears immediately at startup
  • Cycle options missing or incorrect
  • UI lights behave inconsistently
  • Washer becomes unresponsive after a control-board replacement
  • Washer stuck in standby or sensing mode

Causes

  • UI board replaced with a different firmware revision
  • ACU replaced with an incompatible revision
  • Corrupted firmware on either board
  • Configuration data not loaded correctly after a board swap
  • Loose or damaged UI-to-ACU communication harness
  • Moisture intrusion causing data corruption
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Step-by-Step Fixes

  • Verify that the UI and ACU part numbers match the washer---s model and revision.
  • Inspect the UI-to-ACU harness for loose, bent, or corroded pins.
  • Check for moisture or corrosion inside the console.
  • Perform a hard reset by unplugging the washer for 1---2 minutes.
  • Reseat all UI and ACU connectors to ensure proper communication.
  • Replace the UI or ACU with the correct revision if mismatched.
  • If both boards were replaced, ensure they are from the same firmware family.
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Safety Notes

  • Disconnect power before accessing the UI or ACU.
  • Avoid touching exposed circuitry to prevent static damage.
  • Do not operate the washer with mismatched control components.
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Applicable Models

Show Models
  • Modern HE Top-Load (No Agitator): MVWB835DW, MVWB835DC, MVWB865GW, MVWB865GC, MVWB766FW, MVWB766FC, MVWB725BW, MVWB725BC, MVWB750YW, MVWB750WB, MVWB880BW, MVWB880WC
  • Modern HE Top-Load With Agitator: MVW6230HW, MVW6230RHW, MVW6230HC, MVW7230HW, MVW7230HC, MVW7232HW, MVW7232HC, MVW6200KW, MVW6200KG, MVW6500MBK, MVW6500MW, MVW5035MW, MVW5030MW, MVW5430MW
  • Bravos Series (HE Top-Load): MVWB300BW, MVWB300WQ, MVWB300VW, MVWB400BW, MVWB400VQ, MVWB400VW, MVWB450BW, MVWB450WQ, MVWB450VW, MVWB700VQ, MVWB700BW, MVWB700VW, MVWB750YW, MVWB750WB, MVWB850YW, MVWB850WB
  • Centennial Series (HE Top-Load): MVWC400XW, MVWC400VW, MVWC500XW, MVWC500VW, MVWC565FW, MVWC565FW1, MVWC565FW2
  • Commercial Technology Top-Load: MVWC565FW, MVWC565FW1, MVWC565FW2, MVWC6ESWW, MVWC6ESW1
  • Maytag 3000 Series (Top-Load HE): MVWB300WQ, MVWB300BW, MVWB300VW
  • Maytag 4000 Series (Top-Load HE): MVWB400VQ, MVWB400BW, MVWB400VW
  • Maytag 5000 Series (Top-Load HE): MVWB500WQ, MVWB500BW, MVWB500VW
  • Maytag 6000 Series (Top-Load HE): MVWB600WQ, MVWB600BW, MVWB600VW
  • Additional Verified F-Code Top-Load Models: MVW18MNBGW, MVW18MNBGW1, MVW20MNBGW, MVW20MNBGW1
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Related Pages

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Other Maytag Washer Error Codes

Show All Error Codes

Model-Specific Notes

On modern MVW and MVWB HE top-load washers, F2E5 is most commonly caused by installing a UI or ACU with mismatched firmware revisions. On older Bravos and Centennial models, moisture intrusion and corrupted configuration data frequently trigger software-version mismatches.

Disclaimer

The information provided on this page is for educational and informational purposes only. Repairs involve electrical, mechanical, and water-related risks. Always follow manufacturer instructions and consider contacting a qualified technician for diagnosis or repair.

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