Maytag Epic Z Washer Reset

Quick Answer

To reset a Maytag Epic Z washer, unplug the power cord for one full minute or press the Power/Cancel button twice. If the error persists, you must enter diagnostic mode by pressing any three buttons in a 1-2-3 sequence three times to clear the fault history.

Look, most people who call me about their Epic Z assume they need a new control board. Nine times out of ten they don't. The board's just stuck in a loop it can't get out of on its own. Ignore this long enough and you can't run any cycles at all, wet laundry sitting in a locked drum. The fix is usually free and takes about five minutes, but you gotta do it in the right order.

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How to Reset Your Maytag Washer

OK so here's the deal with these Epic Z models. They're way more sensitive to power hiccups than people realize. One decent voltage spike or even just cutting power mid-cycle can scramble the logic board and it just sits there, refusing to do anything. A proper reset is almost always the first thing I try when I walk in. Costs nothing, takes five minutes, and honestly works way more often than you'd think.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Control board logic lockup60%

Stored fault code interference30%

User interface glitch10%

Symptoms You May Notice

The display shows dashes or a frozen error code and none of the buttons respond, like the whole panel is just dead.
Door's locked shut and won't pop open even though the cycle finished 20 minutes ago.
You press Start, it hums for a few seconds, then kicks right back to the same error code without doing anything.
Machine fills with water but the drum never starts tumbling, just a quiet hum and then nothing.
Every single indicator light on the panel flashes at the same time, which is the board's way of saying it's in some kind of error state.

Tools Required for Diagnosis

Flathead screwdriver (for toe panel clips)Phillips #2 screwdriverOld towels or a shallow drain panFlashlight

Service / Diagnostic Mode

Close the door. Press any three buttons except Power in a 1-2-3 pattern, then repeat that exact sequence two more times (three times total) within about 5 seconds. When you get it right, every LED on the control panel lights up at once.

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Frequently Asked Questions

Why won't my Maytag Epic Z start after a power outage?

Power outages are probably the number one reason I get calls about Epic Z machines that 'just stopped working.' What happens is the CCU saves whatever state it was in when power cut, and sometimes that saved state is corrupted. The 60 second unplug clears it almost every time. If your power went out mid-cycle, also check the coin trap filter at the bottom front, because a partial drain sometimes happens mid-cycle during an outage. Clear that out first, then do the reset. If you're still getting F codes after all that, the outage might have actually damaged something on the board.

Will a reset fix an F21 error code?

Not permanently. F21 is a drain error and the reset just clears the display, the actual clog is still sitting there. Pull that lower toe panel off, it either pops off or has two screws, and find the coin trap. It's a round cap you twist counterclockwise. Have towels ready because water will come out. Clean everything out of there, hair, coins, whatever your kid dropped in last month, then do your reset. Now it'll actually stick because the underlying problem is gone.

What if the reset doesn't work and the door stays locked?

There's a manual door release for exactly this situation. Pull off the lower toe panel and reach up and to the right inside the opening. You'll feel a small plastic ring or tab hanging off the bottom of the door latch assembly. Pull it down firmly and the door should pop. One thing though: if there's water in the drum, that release lets the door open but it doesn't drain first. So check through the porthole window before you pull it. If there's water, drain manually through the coin trap first.

How often should I have to reset my Epic Z washer?

Honestly, almost never. Maybe once after a really bad storm. If you're doing this monthly, your CCU or motor control board is starting to go. Replacement boards run about $150 to $250 depending on where you buy them and the swap is pretty manageable on the Epic Z if you're comfortable with basic appliance work. But before you spend that money, make sure the machine is on a dedicated 20-amp circuit and isn't sharing with other heavy appliances. I've fixed 'failing boards' that were actually just tripping under shared circuit load. That's a free fix.

Can a bad door latch cause the Epic Z to need constant resets?

Yes, absolutely. The latch has a small switch inside it that tells the board the door is actually closed and locked. If that switch gets flaky, the board gets random 'door open' signals mid-cycle and throws itself into an error state every time. You'll notice it because the errors seem random, not tied to any specific cycle phase. A new latch assembly is usually $40 to $60 and it's a pretty straightforward swap. Just pop the inner door panel, two screws and a pry, and you can get to it.

What's the three-button sequence actually doing?

It's a technician shortcut baked into the firmware. Maytag put it there so service techs can access fault history and clear the EEPROM without a laptop or special diagnostic tool. Any three non-Power buttons work because the firmware is just looking for three distinct inputs repeated three times in a row. It doesn't care which buttons. It's not secret information but most homeowners never know about it because it's buried about 40 pages into the service manual that nobody reads. Now you know it.

Models Known to Experience EPIC-Z-RESET Errors

This repair applies to most Maytag washers with this error code. Common model numbers include:

MHWZ400TQ, MHWZ400TQ0, MHWZ400TB, MHWZ400TM, MHWZ600TW, MHWZ600TK, MHWZ600TE, MHWZ600TB

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 17, 2026