Door wont unlock once a wash cycle has begun

Could be several reasons:
- Selected the "Night cycle" program (means standing with the drum full of water, reason: too much noise in the spin cycle)
- Set to the "Rinse hold" (means standing with the drum full of water, reason: wrinkles on the clothes)

According to your description I think that this is not a failure otherwise error E20 will be appears on display.

Once the washing programme has come to an end, END illuminates on the programme progress display.
If RINSE HOLD was selected, the display beside the START/ PAUSE button flashes.
1. After a rinse hold, the water must first be pumped out:
- Either press the START/PAUSE button (the water is pumped out and the washing is spun according to the completed programme;
After the START/PAUSE button is pressed again, the spin speed can still also be changed during spinning), or
- Turn the programme selector to PUMP OUT and press the START/PAUSE button (the water is pumped out without spinning),or
- Turn the programme selector to SPIN or SHORT SPIN and press theSTART/PAUSE button (the water is pumped out and the washing is spun or gently spun).
At the end of this programme step, the END indicator will illuminate.
2. Open the door.
As soon as the DOOR indicator lights up green, the door can be opened.

Dado

You're start/pause button should pause the cycle, cancell should completely cancell. After pressing the Start/Pause within a cycle, the door lock may require time to unlock as indicated by the lock light on the panel.

try any button sequences yet . try holding start button and a cycle button hold both down to reset

It's time to unplug the power and let the electronic panel reset.

Unplug your Maytag washing machine for 30 seconds.

Plug your washing machine back in, and after 30 seconds, push the "Pause/Cancel/Stop" button two times. Choose a wash cycle.

Press the "Start" button until the wash cycle begins to ensure that the washing machine is functioning properly

Hello there and thank you for chosing fixya
Here is a few things to check before you do a manual opening of the door
You may have already done these steps but please try this again in this order ok?

Check to see if the "Add a Garment" light is lit on the Duet's display. The light will only be on during the first eight minutes of a washer cycle, when the function is usable.
Press the "Pause/Cancel" button once to pause the washing cycle and unlock the door.Press the Press the "Pause/Cancel" button twice to cancel the wash cycle if the "Add a Garment" light is not illuminated. THIS IS A BIGGIE HERE (Wait for the water to drain. The door unlocks once enough water has drained to enable you to safely open the washer door NOW IF THESE STILL DO NOT WORK THEN HERE IS HOW TO MANUALLY OPEN THE DOOR
UNPLUG THE MACHINE
Remove the three screws securing the lower toe panel to the washing machine. The lower toe panel is the small rectangular panel underneath the washer's front door. Pull the panel off the washer once the three screws are removed.Reach up into the front panel of the washer. Feel for the teardrop-shaped tab in the washer's door latch assembly.Pull down on the tab until you hear a click. The click is the sound of the door unlocking.

Repair Manual Link

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

your mach depending on model and cycle selected has a 3 to 5min "add a garment" feature.that means in the 1st 3-5mins of cycles when add a garment light is lit you may hit pause button once and the mach will stop and unlock door.after add a gament light is off,if u hit pause the cycle the mach will drain water and reset cycle..hope this helps

Do you have any error codes?

Does water remain in the washer after the final spin?
If water remains in the washer after the final spin, then the door will not unlock. Drain/Spin or Spin Only to remove any remaining water from the washer. The door should unlock at the end of the cycle.
Is the door locked and the Add A Garment light on?
If the Add A Garment light is on, then the washer door will unlock after the Pause/Cancel button is pressed once. Pressing the Start button will restart the washer at the same point where it left off in the cycle.
Is the door locked and the Add A Garment light off?
If the Add A Garment light is off, then the washer door will unlock after the Pause/Cancel button is pressed twice. The door will not immediately unlock while the cycle is running due to a possible high-water level in the washer, high-water temperature, tumbling or spinning. It may take up to five minutes for the washer to stop spinning and draining before the door will unlock. You will hear the door click when it unlocks.
If Pause/Cancel does not work:

1. Unplug washer or disconnect power for one minute.
2. Plug in washer or reconnect power.
3. Re-select the cycle and press Start.

NOTE: If the error remains on the display, call for service.

i havnt seen any flashes on this id look closley at what your putting in the washer as there is nothing in the unit its self as far as mfg that will cause this also try this 1. Open the washer door and remove any clothing or items from the washer.
2. Inspect the gray colored seal/bellow between the door opening and the basket
for stained areas. Pull back the seal/bellow to inspect areas under the seal/bellow.
3. If stained areas are found, wipe down these areas of the bellows using the following
procedure:
a) Mix a dilute solution of liquid chlorine bleach and water (3/4-cup bleach in
1 gallon of warm tap water).
b) Wipe the seal/bellow area with the dilute solution.
c) Let stand 5 minutes.
d) Wipe down area thoroughly with a dry cloth and let the washer interior air dry.
e) Please note:
- Do not use bleach at full strength for cleaning surfaces.
- The use of rubber gloves is recommended when cleaning for prolonged
periods.
4. To begin the clean out cycle, do the following:
a) Open the washer door and remove any clothing or items from the washer.
b) Be sure door is closed.
c) Open the dispenser drawer and remove the detergent divider from the main
wash detergent compartment. See the Use and Care Guide for instructions.
No additives will be added at this time. You will be required to add them at a
later step.
- For Whirlpool Duet, select the “Power” button.
- For Kenmore Elite HE products, move to the next step.
d) Select the “Normal” wash cycle.
e) Select the hottest wash water temperature available, (not all temperatures will
be available).
f) Select the highest spin speed available.
g) Select the additional or 2nd Rinse option (if available).
h) Press and hold the “Start” key for 2 seconds. The door will lock and filling will
begin. NOTE: The water will dispense for a moment, then the door will unlock
and re-lock and the cycle will continue.
i) Once the filling has begun again, open the dispenser drawer and immediately
add 1 cup liquid chlorine bleach to the main wash detergent compartment.
The liquid chlorine bleach should immediately flow through the dispenser.
NOTE: Do not add any detergent to this clean out cycle. Use of more than 1 cup of
bleach per month will cause product damage over time. Addition of bleach without immediately
starting the will cause damage to the product over time
5. Once the clean out cycle has begun, allow the cycle to completely run.
6. After the clean out cycle is complete, leave the door slightly open/cracked to allow
for better ventilation and prevention of future odor issues.
7. If you removed the detergent compartment divider, be sure to replace the divider
to the correct position.
NOTE: If necessary, the clean out cycle may be interrupted by pressing the “Pause/
Cancel” button. This will stop the cycle. A “Rinse and Spin” cycle must then be run to
thoroughly rinse the remaining bleach from the unit. Failure to do so will cause damage
to the unit and clothing added to the next cycle.
In addition to the clean out procedure, always do the following to prevent future odor
issues.
1. Use only High Efficiency (HE) detergent.
2. Leave the door slightly open after each cycle to allow for better ventilation and
drying of washer interior.
3. Repeat this clean out procedure only on a monthly basis, if necessary.