Resetting a Display Error on Maytag MHW4220HW

Introduction

A flashing or stuck display on a Maytag MHW4220HW can be frustrating.
When the screen shows a code or fails to reset, the machine may refuse to start, or it may display an “E” code that keeps the appliance locked.
This guide walks you through the most common reasons a display error appears, explains the safety steps you need to follow, and provides a step‑by‑step procedure for resetting the error.
You will learn how to identify the error, check the door latch, use the reset button, and even enter a service mode if the normal reset does not clear the problem.

Common Display Errors on the Maytag MHW4220HW

The table above lists the most frequent codes, but other errors may appear.
Regardless of the code, the first step is to stop the machine and disconnect power.
This protects you and gives the electronics time to clear internal errors.

Safety First

1. Turn off the machine by pressing the power button until the display goes blank.
2. Unplug the appliance from the wall outlet.
3. Wait at least 60 seconds. This gives the control board enough time to reset its memory.
4. Avoid using a water‑powered outlet or a surge protector that can deliver an abrupt surge.
5. Inspect the cord and outlet for damage or loose connections.
6. Keep children and pets away while the machine is unplugged.

Once you have followed these safety steps, you can begin the reset procedure.

Step 1 – Power Cycle the Machine

The most common fix for a stuck display is a simple power cycle.
A power cycle forces the control board to clear temporary glitches.

1. Unplug the washer.
2. Wait 60 seconds.
3. Re‑plug the machine.
4. Turn the machine on by pressing the power button.

If the display still shows the same code, move on to the next step.

Step 2 – Check the Door Latch

Many display errors are triggered by a faulty door latch.
The washer will not start if it believes the door is open, even if it is closed.

• Visual inspection: Look for cracks, bent metal, or debris in the latch area.
• Manual test: Press the latch button while keeping the door closed. The lock should click and hold.
• Door closure test: Close the door fully and listen for the click. If the latch does not engage, the washer will not start.

If you find a problem, replace the latch kit according to the service manual or call a professional technician.

Step 3 – Use the Dedicated Reset Button

The Maytag MHW4220HW is equipped with a reset button located on the control panel.
This button is designed to clear certain error codes.

1. Locate the reset button on the front panel. It is usually a small, recessed button.
2. Press and hold the button for 5 seconds.
3. Release and wait for the display to refresh.

If the error code disappears, the washer should start normally.
If the error remains, proceed to the next step.

Step 4 – Reset via the Control Panel

When the dedicated reset button does not work, a manual reset through the control panel can force the system to clear its memory.

1. Turn the washer off.
2. Press and hold the “Start” button for 10 seconds.
3. Release and then press the “Start” button again to power the washer back on.

This sequence is sometimes called a “hard reset” and can clear stubborn software faults.
Watch the display for any changes in the error code.

Step 5 – Enter Service Mode (Advanced)

If the error persists, the machine may need to be entered into a service mode.
This mode allows deeper diagnostics and a full reset, but it should only be used if the previous steps fail.

1. Disconnect power for at least 60 seconds.
2. Reconnect power and turn on the washer.
3. Simultaneously press the “Delay Start” and “Pause” buttons.
4. Hold for 3 seconds, then release.
5. The display will show a “S” or “Service” screen.
6. From here, press the “Reset” button (if available) or follow the on‑screen instructions to clear the error.

If your machine does not respond to these actions, consult the official service manual or contact a Maytag service technician.

Step 6 – What to Do If the Reset Fails

Sometimes the error code indicates a hardware fault that cannot be fixed by software reset.
Common issues include a faulty temperature sensor, a broken pump, or a damaged control board.

Always keep the user manual handy; it contains wiring diagrams and component locations that can help you diagnose the problem.

Preventive Maintenance Tips

Regular maintenance can prevent most display errors.

• Clean the filter: The drain filter collects lint. A clogged filter can trigger a drain error.
• Inspect hoses: Look for kinks or cracks. Replace any damaged hoses.
• Check the door seal: A torn or warped seal can cause latch problems.
• Run a cleaning cycle: Use a washer cleaner monthly to keep the interior dry and free of residues.
• Verify water pressure: Low pressure can cause the water‑level sensor to trigger an error.

Adhering to these practices reduces the likelihood of future display errors and prolongs the life of your washer.

Frequently Asked Questions

Q: Why does my Maytag MHW4220HW show a flashing E01 error?
A: The error indicates the door latch is not functioning properly. Check the latch and door alignment.

Q: Does unplugging the washer reset all errors?
A: Unplugging clears many software glitches, but hardware faults will persist.

Q: Is it safe to reset the machine while it is still plugged in?
A: For most reset procedures, you must unplug the machine first. Never press the reset button with the appliance still connected to power.

Q: Can I use a different outlet?
A: Yes, as long as the outlet is grounded and rated for the washer’s power requirements.

Q: When should I call a technician?
A: Call a professional if you are unable to identify or resolve the error after following the steps above, or if you suspect a major component is damaged.

Visual Guide

Below are three key images that illustrate the steps mentioned in this guide.
They help you locate the reset button, view the control panel, and see where the drain filter is installed.

Conclusion

A stuck display on a Maytag MHW4220HW can be resolved with a systematic approach.
Start with the safest step—unplug and wait—then move through the reset button, hard reset, and service mode.
If the problem remains, it is likely a hardware issue that requires a professional fix.

By following these instructions, you will spend less time troubleshooting and more time enjoying clean laundry.