My washer dryer was on baby cycle wash and although the green light has come on to indicate it has finished, red lock key is also on and I am unable to open the door.

The good ol' Whirlpool Lid Lock Flashing Light Problem - ApplianceBlog

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Washer Sensing led (Green) on with the lid locking led (Red ...

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... this: Sensing led (Green) on, the lid locking led (Red) blinking with a clicking noise ... red led light goes off green led light stays on and the washer does not start.

Chek that the door lock is activated if not replace the door lock the other possibility is the anti flood device is activated so chek for a leak in the bottom of the machine

Its normal for the machine to cycle the lock before starting its cycle. I'm assuming your machine is a bravos style.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_4570d45317834dd3

If the START / PAUSE button lights up red, the washing machine detects a malfunction. Now you should count how many times the START / PAUSE button lights up red and tell to us what kind of malfunction is being done.

Try to rapid reading of alarm codes when the appliance is in normal operating mode (e.g. during the execution of the washing
programme):
Press and hold down START/PAUSE and the nearest option button for at least two seconds: the LEDs initially switch off, and then display the flashing sequence indicating the last alarm.

LED indicator START / PAUSE with red light = indicates the first digit of the alarm code (family)
• LED indicator START / PAUSE with green light = indicates the second digit of the alarm code (internal number of the family)

Dado

Your Maytag Neptune Washing Machine displays error codes, also called "help codes," to identify specific problems with your washer. Once you close your Maytag Neptune's door, the machine locks the door, goes through the selected wash cycles and unlocks the door when the laundry is finished. Error codes appear when there are problems with the door, the inflow and drainage of water and the motor.
The "FL" code indicates that the washing machine was unable to lock the door after you closed it. Open and close the door tightly, then restart the washing cycle.
Door lock monitor switch in door lock mechanism unable to communicate to control board the door is locked.
1.Check wire connections in harness leading from machine control board to door lock mechanism.2.Check solenoid and door lock enable switch in door lock mechanism.
3.Replace responsible component.

Try buttons "dry" & "spin" together for a few seconds. This is the child lock display.

Or press "end of cycle" for over 3 seconds.

Or press "options & select" till the light goes off.

Works for other machines..............And please rate me if helped

i have the problem when i turn power on 2 green wash cycle lights plus the red lid lock stay on with constant beeping every second then when i push the start button the 2 green lights go out and the red lid lock light stays on but no beeps please help

it needs resetting
http://www.washerhelp.co.uk/diy-repair-help_5.html#cl_q4
the sequence is here on this site