In the case at hand, every function seems to work. When I start a program it starts by pumping water out from the last program. Tub fills with water fine. But at the start of the wash cycle it attempts a high-speed spin with a full tub of water, which seems quite bizarre. Attempting a high-speed spin with water in the tub causes it to jump because of all the weight. It /should/ just slowly rotate in one direction, then the other direction. But instead it does a 2 second spin then pauses for a minute. Then it repeats that 2 second high-speed spin then pauses. After 4 or so repeats of that it quits and leaves a blinking start button.
My first thought was that it detected overloading or an imbalanced load and maybe tried to balance the load. But it does the same thing empty. The belt is fine and the motor is obviously strong enough to make it spin as far as I can tell. But maybe something that controls the motor is broken. I am stuck because I don’t know how to probe the various parts with my multimeter as far as what readings I should look for.
The machine has a spin-only program that should do nothing but spin. When I run that program, it obviously does not add water. It just starts the spin (as expected) but pauses 2 sec after starting to spin.. waits a min, then tries again. It looks like it spins fine but it’s giving up anyway.