Maytag Washer - F4E1 (Front-Load) Error Code
Heater relay failure --- the ACU cannot properly control the heating element.
Meaning
Heater relay failure --- the ACU cannot properly control the heating element.
The Maytag F4E1 error code on front-load washers indicates that the appliance control unit (ACU) detected a failure in the heater relay circuit. Whirlpool-built Maytag front-load washers use an internal heater and a dedicated relay on the ACU to regulate water temperature. If the relay is stuck open, stuck closed, or not responding to ACU commands, the washer triggers F4E1 to prevent overheating, incorrect wash temperatures, or electrical damage.
Symptoms
Causes
Step-by-Step Fixes
- Unplug the washer for 5 minutes to reset the ACU.
- Inspect heater wiring for loose, burnt, or corroded connectors.
- Test the heater element for proper resistance and shorts to ground.
- Check the NTC sensor for stable resistance readings.
- Inspect the ACU for burnt spots near the heater relay.
- Replace the ACU if the heater relay is stuck or non-functional.
- Replace the heater element if it is shorted or open.
Safety Notes
- Disconnect power before accessing the heater or ACU.
- Do not operate the washer if overheating or burning smells are present.
- Avoid spraying cleaners near the control panel or dispenser.
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 F3E6 (Front-Load) – Water temperature is rising too quickly or is above the expected range.
- Maytag Washer F4E4 (Front-Load) – Water temperature is not increasing as expected --- heating timeout.
- Maytag Washer F3E2 (Front-Load) – Water temperature sensor (NTC) is open, shorted, or reading out of range.
- Maytag Washer F9E1 – The washer is taking too long to drain.
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 (Front-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 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, F4E1 is most commonly caused by a failed heater relay on the ACU. On older MHWE and MHWZ models, heater element shorts and moisture intrusion near the ACU frequently trigger this code.
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.