Wire colors is one of my pet peeves. The LG front loader for example has a black and white wire that enters the filter board, and then reverses the colors when it exits the board. Huh??? And don't even get me started on microwaves. It wouldn't be so bad if the tech sheet cleared up the confusion, but many of these things don't have one, or the wiring diagram looks like my kid drew it with a crayon. Job security for sure.