Hi, it's me again. So I learned a valuable appliance repair lesson when trying to fix this washing machine: don't fix something until you figure out why it broke in the first place! The first speed control board died (fixed with my last story on year) and I assumed it was just a cheap part of something, but I was in fact proved wrong when, to my dismay, the new board died a week or so later.
Being the self-appointed washing machine expert I became after the last repair, I got right into the back of it the moment it stopped working, hoping I just didn't securely attach something and could fix easily. Whereas last time I received error code 59, this time it was 52, but still pointed to the speed control board. In doing so, I noticed some water around the bottom of the machine. I then took the top off, and there noticed that the hose connecting the soap dispenser area to the drum had become detached! Water had been dripping down onto the speed control board and, I presume, that killed them both. I checked both bad boards and they had part of the circuit board corroded in the exact same place.
So after a quick delivery of speed control board #2 and a single trip to the laundromat to wash the half done laundry from the aborted load, I pulled the top and back off, securely tightened the hose back up and installed the new board. So it is fixed... For now. Hopefully there won't be a part 3 to this story, but I must say I feel better knowing there was a legitimate reason for the first failure and I believe I have identified and corrected the cause of the damages. $260 well spent (and still probably cheaper than paying someone to come fix it).