it leaks at bottom of door.I don’t see a gasket
Hi.
If you have a small leak it may come from the soap dispenser gasket. If you will remove the outer door you will be able to see this leak. If it leaks more substantially it could be the faulty door gasket or the crack in the lower wash arm may cause water to spray directly onto the inner door, causing the leak.
Here are the breakdown diagrams and parts list for your dishwasher:
[MODEL]DWU7402AAE[/MODEL]
The door gasket AP6013603
The lower wash arm AP6014378
The grommet seal AP6014372
Good luck. Please keep us posted with the results.
Thank you,
Simon.