Howdy from galveston. I'm new here and could use some help.
I have a new Frigidaire washer here at the beach and it just washes for ever without shutting off. It'll fill & rinse & fill & rinse.
Obviously there's something wrong with the timer. Anyone have any suggestions?

Does it have a mechanical timer or a computer control board?

It has a mechanical timer I believe.

Hum, that's weird. I would though a computer controlled timer would do something like this, but it doesn't seem logical for a mechanical one to do so.

It does sort of sound like the timer, but on the other hand, sooner or later that timer has to run to its end and shut off. Or at least begin on another cycle.

Well, if its new then it should be under warranty, Id file a claim on it and see what happens.