Whirlpool duet front-load

You have a bad water inlet valve that needs to be replaced.
Water Inlet Valve For Whirlpool Duet Front Load Washer Model Number...

may be the latch was brocken replace the latch

pushing the button that many time is not the problem on this type of unit you push the start and hold of about 5 sec's then you'll hear the unit start door lock and oper through a normal cyc a word of advice don't close the door very hard push into place these things are plastic and will break the latch assy then will cost $$$ for parts good luck

first an foremost your washer isn't designed to wash comforters, the capacity isn't large enough. only clothes sheets . the reason ur door wont stay closed is the bulk item is pushing it open. overloading washer will cause $$ major problems. simiply take that to the cleaners an save urself some big bucks.

I have search for this and found:

This error code indicates that the door is not locking. 
Is the washer door firmly shut? 
The door must be completely closed for the washer to operate. The door may look as if it's closed, but it may not be latched. Open the door and firmly close it.
Were you washing a large load?
Before you close the washer door, check for laundry items sticking out beyond the door opening. Leave enough space in the washer to allow the clothes to freely tumble. Reduce your load size if needed. 

More info can be found on The Whirlpool website:

Whirlpool Front-Loading Washer

Answer Duet HT®

Duet®
Duet SportTM

This error code indicates that the door is not locking.
Is the washer door firmly shut?
The door must be completely closed for the washer to operate. The door may look as if it's closed, but it may not be latched. Open the door and firmly close it.
Were you washing a large load?
Before you close the washer door, check for laundry items sticking out beyond the door opening. Leave enough space in the washer to allow the clothes to freely tumble. Reduce your load size if needed.
To remove the error display, press Pause/Cancel twice.


If Pause/Cancel does not work:

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

NOTE: If the error remains on the display, and all of the other conditions above have been checked, call for service.

can oyu oppen the door nad physically push in on the door switch( little grey switch atop the door opening). do you hear it clicking on/off??? if not you have a bad door switch.

On the far right sode of the control panel there is a unlock control reset button. Hold it for 3 seconds and the fault will clear.

sounds like the on/off button is faulty. It may need replacing, but try a squirt of WD40 on the switch WITH THE POWER TURNED OFF!! COS WD40 IS COMBUSTABLE 

 But like my dear old Dad said ''it works like magic in a tin''

Hi, Has the door catch,which protrudes and goes into the hole, broken off, it should have a sort of hooked end. Tom.