Wow, glad this post sparked an insightful discussion! I learned a lot reading through the responses here, thank you all! Of course, since I left the dishwasher has been working fine!
I realize now that I forgot to add one important detail: I re-seated all of the connectors on the CPU, including the touch pad ribbon connector. As a matter of fact, I just fixed a Kitchen Aid dishwasher that was dead (no lights coming on, won't run at all) a couple days ago by re-seating the connectors to the CPU. (Of course, I told the customer that the CPU and possibly touchpad would need to be replaced if the problem returns)
Either way, I'm sure they'll be calling back sooner or later. When they do, I'll follow up here!
Thanks again, everyone!
- Samurai Appliance Repair Man likes this