To be honest? Replacing this part was easy. The video y'all provided was excellent and it was the correct part and I believe one of four possible solutions to the problem I was having (water would start to flow, then turn off within 1-2 minutes and throw the FH code). I'd checked and cleaned out the drain already, checked all the hoses and made sure there were no clogs. Figured it had to be the water pressure switch (if it was the motherboard, forget it, I'd get a new washer).
Do all that and find out it's the water pressure in my house. Filter needed to be changed. 100% not AppliancePartsPros problem. Just posting it here in case someone else has a similar problem and hasn't thought to check it. My water pressure was fine, but had decreased apparently enough to do the trick. So if you have the same problem while also thinking maybe your shower isn't as strong as it used to be... check that first. :)