I mean, I get it. I'm a nerd that enjoys tackling problems. But the normal response I've seen from appliance techs have been the same. They seem more interested in the commission of selling a new unit than actually trying to fix the current one. In the end my unit probably could have been solved for less than an hour of his time to just jiggle the connection of the hall effect sensor on the board, but he couldn't even be bothered to figure out it was the sensors that were the problem or actually try and make the repair.

I've had similar experiences with other appliances over the years. It's not just a GE thing.