Maytag Washer - F1E3 (Front-Load) Error Code
ACU/MCU configuration mismatch --- the control boards are not synchronized.
Meaning
ACU/MCU configuration mismatch --- the control boards are not synchronized.
The Maytag F1E3 error code on front-load washers indicates that the appliance control unit (ACU/CCU) and the motor control unit (MCU) are not communicating with matching configuration data. Whirlpool-built Maytag front-load washers require the ACU and MCU to share synchronized firmware parameters, model configuration, and motor-control profiles. If either board is replaced with an incompatible version, loses calibration data, or experiences corrupted firmware, the ACU triggers F1E3. This error prevents the washer from running to avoid unsafe motor operation.
Symptoms
Causes
Step-by-Step Fixes
- Unplug the washer for 5 minutes to reset both boards.
- Inspect the wiring harness between the ACU and MCU for loose or damaged connectors.
- Verify that any replaced ACU or MCU matches the washer---s model and revision.
- Check for moisture or corrosion around the control boards.
- If the MCU was replaced, ensure it is the correct Whirlpool part number.
- If the ACU was replaced, confirm it was programmed for the correct model.
- If both boards appear correct, replace the ACU (most common fix).
Safety Notes
- Disconnect power before accessing control boards or wiring.
- Do not attempt to operate the washer if configuration mismatch persists.
- Avoid installing the washer in high-humidity environments that may affect electronics.
Applicable Models
Show Models
- MHW3000 Series: MHW3000BW, MHW3100DW
- MHW3500 Series: MHW3500FW, MHW3505FW
- MHW4200 Series: MHW4200BW
- MHW4300 Series: MHW4300DW
- MHW5100 Series: MHW5100DW
- MHW5500 Series: MHW5500FW, MHW5500DW
- MHW5630 Series: MHW5630HW, MHW5630HC
- MHW6000 Series: MHW6000XW
- MHW6630 Series: MHW6630HW, MHW6630HC
- MHW7000 Series: MHW7000XW
- MHW7100 Series: MHW7100DW
- MHW8200 Series: MHW8200FW
- MHW8630 Series: MHW8630HW, MHW8630HC
- MHW9000 Series: MHW9000YW, MHW9000XL, MHW9000XR
- MHWE Series: MHWE200XW, MHWE201YW, MHWE251YG, MHWE251YW, MHWE301YG, MHWE301YW
- MHWZ Series: MHWZ400TQ, MHWZ600TW
- Commercial Front-Load: MLG2000AWW, MLG3000AWW, MLG4500 Series
Related Pages
- Maytag Washer F1E1 (Front-Load) – Main control board failure --- the ACU/CCU is not functioning correctly.
- Maytag Washer F1E2 (Front-Load) – Motor control board failure --- the MCU is not communicating or functioning correctly.
- Maytag Washer F6E1 – The washer---s control boards are not communicating correctly.
- Maytag Washer F7E1 – The washer cannot detect proper motor speed.
Other Maytag Washer Error Codes
Show All Error Codes
- Maytag MVW4505MW Washer Cheat Sheet
- Maytag Neptune TL dc Error Code - Unbalanced Condition
- Maytag Neptune TL Hr Error Code --- Heater Relay Error
- Maytag Neptune TL LE Error Code --- Lid Error
- Maytag Neptune TL LO Error Code --- Locked Rotor
- Maytag Neptune TL OP Error Code --- Lid Open
- Maytag Neptune TL SL Error Code --- Suds Lock
- Maytag Neptune TL UC Error Code --- Uncontrolled Spin
- Maytag Washer CE Error Code - Communication Error
- Maytag Washer dL Error Code - Lock Failure
- Maytag Washer dU Error Code - Unlock Failure
- Maytag Washer F0E1 (Front-Load) Error Code
- Maytag Washer F0E2 (Front-Load) Error Code
- Maytag Washer F0E2 (Top-Load) Error Code
- Maytag Washer F0E3 (Front-Load) Error Code
- Maytag Washer F0E3 (Top-Load) Error Code
- Maytag Washer F0E4 (Front-Load) Error Code
- Maytag Washer F0E4 (Top-Load) Error Code
- Maytag Washer F0E5 (Front-Load) Error Code
- Maytag Washer F0E5 (Top-Load) Error Code
- Maytag Washer F0E7 (Front-Load) Error Code
- Maytag Washer F0E7 (Top-Load) Error Code
- Maytag Washer F0E8 (Top-Load) Error Code
- Maytag Washer F0E9 (Top-Load) Error Code
- Maytag Washer F1E1 (Front-Load) Error Code
- Maytag Washer F1E1 (Top-Load) Error Code
- Maytag Washer F1E2 (Front-Load) Error Code
- Maytag Washer F1E2 (Top-Load) Error Code
- Maytag Washer F1E3 (Top-Load) Error Code
- Maytag Washer F1E4 (Top-Load) Error Code
- Maytag Washer F1E5 (Top-Load) Error Code
- Maytag Washer F2E1 Error Code --- UI Stuck Button
- Maytag Washer F2E2 (Front-Load) Error Code
- Maytag Washer F2E3 (Top-Load) Error Code
- Maytag Washer F2E5 (Top-Load) Error Code
- Maytag Washer F3E1 Error Code --- Water Level System Error
- Maytag Washer F3E2 (Front-Load) Error Code
- Maytag Washer F3E2 (Top-Load) Error Code
- Maytag Washer F3E3 (Front-Load) Error Code
- Maytag Washer F3E3 (Top-Load) Error Code
- Maytag Washer F3E5 (Front-Load) Error Code
- Maytag Washer F3E6 (Front-Load) Error Code
- Maytag Washer F4E1 (Front-Load) Error Code
- Maytag Washer F4E4 (Front-Load) Error Code
- Maytag Washer F5E1 Error Code --- Door or Lid Not Locked
- Maytag Washer F5E2 Error Code --- Door or Lid Not Opened Between Cycles
- Maytag Washer F5E3 Error Code --- Door or Lid Unlock Failure
- Maytag Washer F5E4 (Front-Load) Error Code
- Maytag Washer F5E4 (Top-Load) Error Code
- Maytag Washer F5E5 (Top-Load) Error Code
- Maytag Washer F6E1 Error Code --- Communication Error
- Maytag Washer F6E2 (Front-Load) Error Code
- Maytag Washer F6E2 (Top-Load) Error Code
- Maytag Washer F6E3 (Front-Load) Error Code
- Maytag Washer F6E3 (Top-Load) Error Code
- Maytag Washer F6E4 (Top-Load) Error Code
- Maytag Washer F7E1 Error Code --- Speed Sensor or Motor Speed Error
- Maytag Washer F7E2 (Front-Load) Error Code
- Maytag Washer F7E2 (Top-Load) Error Code
- Maytag Washer F7E3 (Front-Load) Error Code
- Maytag Washer F7E3 (Top-Load) Error Code
- Maytag Washer F7E4 (Top-Load) Error Code
- Maytag Washer F7E5 (Top-Load) Error Code
- Maytag Washer F7E6 (Front-Load) Error Code
- Maytag Washer F7E6 (Top-Load) Error Code
- Maytag Washer F7E7 (Front-Load) Error Code
- Maytag Washer F7E7 (Top-Load) Error Code
- Maytag Washer F7E8 (Front-Load) Error Code
- Maytag Washer F7E8 (Top-Load) Error Code
- Maytag Washer F7E9 (Front-Load) Error Code
- Maytag Washer F7EA (Front-Load) Error Code
- Maytag Washer F7EC (Front-Load) Error Code
- Maytag Washer F8E1 Error Code --- No Fill or Long Fill
- Maytag Washer F8E2 (Front-Load) Error Code
- Maytag Washer F8E2 (Top-Load) Error Code
- Maytag Washer F8E3 (Front-Load) Error Code
- Maytag Washer F8E3 (Top-Load) Error Code
- Maytag Washer F8E5 (Top-Load) Error Code
- Maytag Washer F9E1 Error Code --- Long Drain
- Maytag Washer F9E2 (Top-Load) Error Code
- Maytag Washer F9E3 (Top-Load) Error Code
- Maytag Washer Int Error Code --- Cycle Interrupted
- Maytag Washer LE Error Code --- Motor Error
- Maytag Washer LF or LO FL Error Code --- Long Fill / Low Water Flow
- Maytag Washer LOC or LC Error Code --- Control Lock Activated
- Maytag Washer nd Error Code --- No Drain
- Maytag Washer nF Error Code --- No Fill Detected
- Maytag Washer OL Error Code --- Overload Detected
- Maytag Washer PAU Error Code --- Cycle Paused
- Maytag Washer PF Error Code --- Power Failure
- Maytag Washer rL Error Code --- Items Detected in Clean Washer Cycle
- Maytag Washer Sd or SUD Error Code --- Excess Suds Detected
- Maytag Washer tE Error Code --- Temperature Sensor Error
- Maytag Washer UL Error Code --- Unbalanced Load
Model-Specific Notes
On modern MHW-series front-load washers, F1E3 typically appears after replacing the ACU or MCU with an incompatible revision. On older MHWE and Neptune models, wiring corrosion or firmware corruption can cause configuration 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.