Yesterday, when I renewed my home repair insurance, I dropped my washer / dryer from the coverage.
Naturally, this morning my washing machine overflowed and leaked water all over the floor in the laundry area and adjoining bathroom.
Probably it is just a small blockage. A simple matter of removing a sock from the drain tube. Surely I could troubleshoot it myself!
Then I did a google search and located this picture:
Are you frightened? I was. A repair company is coming this afternoon.
It may be time to get a new washer anyway. Mine is pretty old-school:
(The washer is on the right.)