My washing machine started giving me an error code when I tried to start a load of laundry.
So, I tried to fix it the way I fix most broken things in my life. I googled it.
It turns out that "F-dl" on a Whirlpool Duet washing machine means the door lock is malfunctioning. The internet also taught me that the door lock is in the upper back right corner of the washer. You can use gravity to help the lock latch. As the lock is trying to latch, you can "assist" it by pounding the machine with your fist.
Are you picturing this?
Please picture this.
Sometimes, to make my washing machine work, I have to hit it with my fist.
I. am. Fonzie.