I am posting a follow-up based on a recent experience, again in case it helps someone facing the same issues.

The washer (same one fixed 6 years ago) stopped in the middle of a wash cycle with clothes in the washer. Making weird sounds (hard to describe, kind of a rumbling and squeaking). I advanced the timer to spin cycle, was able to get it to spin somewhat and get out most of the water, although it still kept making noises and stopping.

The washer is now 25 years old, so maybe best to give up on it, but wanted to at least make a cursory attempt at repair. My prime suspect was the bearing causing the noises and also causing an overcurrent draw, resulting in the board shutting down the motor as a precaution.

Disconnected the water inlet hoses and drain hose. Removed rear panel, rolled off the drive belt from both motor and spin basket pulleys, and disconnected hot wire from drain pump and started a cycle. Motor turned erratically and still made same sounds. Since no other mechanical part moving (drum, pulleys, shock absorbers, weights, etc) ruled out bearing or anything else, instead suspected the motor.

But then decided to try changing the motor control board first before hunting for a replacement motor, so removed the front door and front panel and replaced the board. These boards are very hard to come by now, Maytag has discontinued almost all repair parts. However, I had kept the bad board from 6 years ago and had replaced the blown MOSFETs, so was able to use that repaired board, and what do you know, everything is back to normal!

Just a few points to keep in mind:
1. Since the front door has to be removed to access the motor control board, remember to press the door switch if testing out the repair before putting the door back.
2. You need to run a cycle with water to test whether everything is OK, the machine might not go into spin if it doesn’t sense any water.

Lesson – that board has failed twice now (as has also the main machine control board once before), so suspect them before the motor or other parts. The other prime suspect often is the wax motor, which can cause the machine not to spin (many posts on that elsewhere).