The motor speed control board is probably fried. At 15 years old you will probably be better off buying a new one.
Yup, I'm pretty sure you got that right.
I followed the Samurai's troubleshooting video for Troubleshooting A No-Drum Movement Problem In A Frigidaire Front-Load Washing Machine.
And just like the Samurai saw in that video, I got 120 V on the aqua wire when it was disconnected from what he calls the pressure switch. (The schematic calls this the water level switch, but I'm pretty sure it's the same thing.)
In that video, he says that means the speed control board is dead.
And the part is over $300.
So I'm shopping for a new washer. My wife said the new one has to have at least the same capacity as the old one. (We have four kids, ages 7-11, and we do a LOT of laundry.)
Any idea on how I can find out the capacity of this washer?
I have the original owner's manual, but it doesn't include any specifications. (And my Google-fu is failing me.)